KR101868372B1 - Photovoltaic module and photovoltaic system including the same - Google Patents

Photovoltaic module and photovoltaic system including the same Download PDF

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KR101868372B1
KR101868372B1 KR1020160100791A KR20160100791A KR101868372B1 KR 101868372 B1 KR101868372 B1 KR 101868372B1 KR 1020160100791 A KR1020160100791 A KR 1020160100791A KR 20160100791 A KR20160100791 A KR 20160100791A KR 101868372 B1 KR101868372 B1 KR 101868372B1
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South Korea
Prior art keywords
infrared communication
solar
module
solar module
information
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KR1020160100791A
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Korean (ko)
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KR20180016857A (en
Inventor
이재동
박영찬
이현재
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엘지전자 주식회사
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Priority to KR1020160100791A priority Critical patent/KR101868372B1/en
Priority to PCT/KR2017/008564 priority patent/WO2018030758A1/en
Priority to US15/671,872 priority patent/US10454414B2/en
Publication of KR20180016857A publication Critical patent/KR20180016857A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The present invention relates to a photovoltaic module and a photovoltaic system having the same. A solar module according to an embodiment of the present invention includes a solar cell module having a plurality of solar cells, an inverter unit for outputting an AC power converted based on a DC power source from the solar cell module, A cable for outputting power to the outside, at least one of voltage information, current information, voltage information, and current information of the solar module, to an adjacent first solar module, an external gateway, or an external infrared communication device And an infrared communication unit. As a result, power consumption can be reduced when communicating with a gateway or an adjacent solar module.

Figure R1020160100791

Description

TECHNICAL FIELD [0001] The present invention relates to a photovoltaic module, and a photovoltaic system having the photovoltaic module and photovoltaic system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic module and a photovoltaic system having the photovoltaic module, and more particularly, to a photovoltaic module capable of reducing power consumption when communicating with a gateway or an adjacent photovoltaic module, Lt; / RTI >

With the recent depletion of existing energy sources such as oil and coal, interest in alternative energy to replace them is increasing. Among them, solar cells are attracting attention as a next-generation battery that converts solar energy directly into electrical energy using semiconductor devices.

Meanwhile, the photovoltaic module means that the solar cells for solar power generation are connected in series or in parallel.

On the other hand, when a photovoltaic system is implemented using a DC power output from a plurality of solar modules, communication is required between the solar module or the inverter and the gateway, and usually the wired power line communication is used.

However, in the case of power line communication, there is a problem that power consumption is significant and manufacturing cost is increased.

An object of the present invention is to provide a solar module capable of reducing power consumption when communicating with a gateway or an adjacent solar module.

According to an aspect of the present invention, there is provided a solar module including: a solar cell module having a plurality of solar cells; an inverter unit for outputting an AC power converted based on a DC power source from the solar cell module; A cable for outputting AC power from the inverter unit to the outside, and at least one of voltage information, current information, voltage information, and current information of the solar cell module to the adjacent first solar module, And an infrared communication unit for transmitting the infrared communication signal to the infrared communication device.

According to another aspect of the present invention, there is provided a solar photovoltaic system including a plurality of photovoltaic modules for outputting AC power to a grid, outputting power generation information by infrared communication, An infrared communication device for receiving generation information from the solar module, and a gateway for receiving generation information from the infrared communication device based on wired or wireless communication other than infrared communication.

According to another aspect of the present invention, there is provided a solar photovoltaic system including a plurality of solar modules for outputting AC power to a grid, outputting power generation information by infrared communication, , And a gateway for receiving generation information from the solar module.

According to an embodiment of the present invention, a solar module includes: a solar cell module having a plurality of solar cells; an inverter section for outputting an AC power converted based on a DC power source from the solar cell module; A cable for outputting AC power to the outside, at least one of voltage information and current information of the solar cell module, voltage information of the inverter section, and current information to an adjacent first solar module or an external gateway or an external infrared communication device The power consumption can be reduced when communicating with a gateway or an adjacent solar module.

Further, by providing an infrared communication unit in the solar module, not the power line communication unit, the manufacturing cost of the solar module can be reduced.

On the other hand, at least one of the voltage information, the current information, the voltage information of the inverter section in the second solar module, and the current information in the second solar module adjacent to the first solar module in the direction opposite to the first solar module, 2 infrared communication unit, it becomes possible to perform infrared communication in both directions.

On the other hand, the openings are formed in both side surfaces of the frame, that is, in the side surface area where the external infrared communication unit and the second infrared communication unit are disposed, so that the infrared communication can be smoothly performed.

On the other hand, it is possible to easily grasp a plurality of solar modules in the gateway by receiving a scan signal from the gateway, transmitting it to an adjacent solar module, and transmitting its own ID information or the like in the direction of the gateway.

Further, it can be utilized in array building for a plurality of solar modules.

Meanwhile, a solar photovoltaic system according to an embodiment of the present invention includes a plurality of solar photovoltaic modules that output AC power to a grid, output power generation information by infrared communication, and a plurality of photovoltaic modules By including the gateway for receiving the power generation information, it is possible to reduce the power consumption when communicating with the gateway or the adjacent solar module.

According to another aspect of the present invention, there is provided a solar photovoltaic system including a plurality of photovoltaic modules outputting AC power to a grid, outputting power generation information by infrared communication, and a plurality of photovoltaic modules By including the gateway for receiving the power generation information, it is possible to reduce the power consumption when communicating with the gateway or the adjacent solar module.

1 is a view showing a conventional solar optical system.
2A is a diagram illustrating a solar light system according to an embodiment of the present invention.
2B is an enlarged view of the solar module and the infrared communication device of FIG. 2A.
FIG. 3A is a diagram illustrating a solar light system according to another embodiment of the present invention.
FIG. 3B is an enlarged view of the solar module and gateway of FIG. 3A.
Fig. 4 is a partially enlarged side view of the solar module of Fig. 2a.
Fig. 5A is a diagram showing an example of a circuit diagram inside a junction box in the solar module of Fig. 2A.
Fig. 5B is a diagram showing another example of a circuit diagram inside the junction box in the solar module of Fig. 2A.
6A is a diagram illustrating a solar light system according to another embodiment of the present invention.
6B is a diagram illustrating a solar light system according to another embodiment of the present invention.
7 is a view showing a solar light system according to another embodiment of the present invention.
FIG. 8 is a flowchart illustrating a method of operating a solar photovoltaic system according to an embodiment of the present invention.
Figs. 9A and 10B are views referred to in the description of the operation method of Fig.
11 is a front view of the solar module of Fig. 3;
12 is a rear view of the solar module of Fig.
13 is an exploded perspective view of the solar cell module of Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a view showing a conventional solar optical system.

Referring to the drawings, a conventional solar photovoltaic system 5 includes a solar module 7 for outputting DC power, an inverter 8 for converting the DC power from the solar module 7 to AC power, A grid 6 to which AC power is supplied from the power source 8, and a gateway 9 to monitor AC power supplied to the grid and the like.

On the other hand, when there are a plurality of solar modules disposed in front of the inverter 8, the inverter 8 can operate as a string inverter.

In such a case, a direct current power source such as a few hundred volts (V) is applied to the string inverter 8, so that there is a disadvantage that a circuit element that can withstand the breakdown voltage of a high voltage is used.

In order to monitor the gateway 9, the inverter 8 and the gateway 9 must perform power line communication (PLC). To this end, the power line communication unit includes a gateway 9, an inverter 8, .

On the other hand, the operation power source for operating the power line communication unit must be supplied from the gateway 9 and the inverter 8, respectively, and relatively power consumption is generated in the power line communication unit, so that the conversion efficiency of the inverter 8 is reduced have.

In order to solve such a problem, the present invention uses an infrared communication method in which power consumption is reduced and manufacturing cost is reduced.

In particular, the solar optical system includes a solar module that supplies AC power and a gateway, and allows infrared communication to be performed between the solar module and the gateway, and between the plurality of solar modules. This will be described in more detail with reference to FIG.

2A is a diagram illustrating a solar light system according to an embodiment of the present invention.

Referring to the drawings, a solar system 10a according to an embodiment of the present invention includes a plurality of solar modules 50a to 50n, an infrared communication device 70, a gateway 80, and a grid 90 .

The plurality of solar modules 50a to 50n respectively output AC power to the grid 90 and output power generation information by infrared communication.

The infrared communication device 70 can receive power generation information from the solar modules 50a to 50n by infrared communication.

The gateway 80 can receive the generation information and the adi information of the solar modules 50a to 50n from the infrared communication device 70 based on wired or wireless communication other than the infrared communication.

Particularly, in the present invention, the gateway 80 uses the infrared communication method instead of the power line communication method when monitoring the solar modules 50a to 50n that output AC power.

To this end, it is preferable that the solar modules 50a to 50n include infrared communication units 270a to 270n and second infrared communication units 271a to 271n, respectively.

It is also preferable that an infrared communication device 70 is disposed between the solar modules 50a to 50n and the gateway 80. [

As a result, the power consumption can be reduced as compared with the power line communication method, and further, the manufacturing cost can be reduced.

Each of the photovoltaic modules 50a to 50n includes a solar cell module 100 having a plurality of solar cells and an inverter unit 50 for outputting AC power converted based on the DC power source from the solar cell module 100, And a control unit 540 for controlling the inverter unit 540 to output the AC power from the inverter unit 540 to the outside, a cable 31 for outputting AC power from the inverter unit 540 to the outside, Infrared communication units 270a to 270n that transmit at least one of the infrared rays to at least one of the adjacent first solar module 50a to 50n or the external gateway 80 or the external infrared communication device 70, The voltage information and the current information of the solar cell module 100 in the second solar cell modules 50a to 50n adjacent to the opposite directions of the first and second solar modules 50a to 50n, And second infrared communication units 271a through 271n for receiving at least one of voltage information and current information of the first infrared communication unit 271a through 271n.

In the figure, the first solar module 50a, the second solar module 50b, and the nth solar module 50b are arranged in a row in the solar modules 50a to 50n ,

A junction box 200a having circuit portions for receiving DC power from the solar cell module and performing power conversion is disposed on the rear surface of the first solar cell module 50a.

It is exemplified that the second infrared ray communication part 271a is disposed on both sides of the rear surface of the first solar module 50a, particularly on the left side, and the first infrared ray communication part 270a is disposed on the right side surface .

In particular, the second infrared communication unit 271a, the first infrared communication unit 270a, and the junction box 200a are preferably arranged in a line. This makes it possible to shorten the cable between the junction box 200a and the second infrared communication unit 271a and the cable between the junction box 200a and the first infrared communication unit 270a, .

Similarly, on the rear surface of the second solar module 50b, a junction box 200b is disposed and on both sides of the junction box 200b, a second infrared communication section 271b and a first infrared communication section 270b May be disposed.

Similarly, on the rear surface of the nth solar module 50n, the junction box 200n is disposed and on both sides of the junction box 200n, a second infrared communication section 271n and a first infrared communication section 270n May be disposed.

On the other hand, the infrared communication unit 270a of the first solar module 50a can perform infrared communication with the second infrared communication unit 271b of the adjacent second solar module 50b.

On the other hand, the infrared transmitting unit 270a can transmit the generation information and the adi information of the first solar module 50a to the second infrared communication unit 271b of the second solar module 50b.

Specifically, at least one of voltage information and current information of the first solar cell module 100a in the first solar cell module 50a, voltage information of the inverter unit 540a in the first solar cell module 50a, and current information To the second infrared communication unit 271b of the second solar module 50b.

Similarly, although not shown, the infrared communication unit 270b of the second solar module 50b can perform infrared radiation with the second infrared communication unit 271c of the third solar module 50c.

On the other hand, the infrared transmitter 270b transmits the power generation information and the adi information of the first solar module 50a, received from the first solar module 50a, to the third infrared module 50c of the third solar module 50c, (271c).

Specifically, at least one of voltage information and current information of the first solar cell module 100a in the first solar cell module 50a, voltage information of the inverter unit 540a in the first solar cell module 50a, and current information To the third infrared ray communication section 271c of the third sunlight module 50c.

On the other hand, the infrared transmitting unit 270b transmits the generation information and the adi information of the second solar module 50b, which is its own power generation information, to the second infrared communication unit 271c of the third solar module 50c .

Specifically, at least one of voltage information and current information of the second solar cell module 100b in the second solar cell module 50b, voltage information of the inverter unit 540b in the second solar cell module 50b, and current information To the third infrared ray communication section 271c of the third solar module 50c

Similarly, the infrared communication unit 270n of the nth solar module 50n can perform infrared communication with the adjacent infrared communication device 70. [

With this infrared communication, the infrared communication device 70 can receive both the power generation information and the ID information from the plurality of solar modules 50a to 50n.

In particular, the infrared communication device 70 is capable of receiving power generation information and ID information from a plurality of solar modules 50a to 50n through daisy-chain infrared communication.

On the other hand, the infrared communication device 70 can exchange data with the gateway 80 by wireline power line (PLC) communication, wireless WiFi communication, Zigbee communication or Bluetooth communication.

In particular, the infrared communication device 70 can transmit generation information and ID information from the plurality of solar modules 50a to 50n to the gateway 80. [

The infrared communication device 70 may be installed around a plurality of solar modules 50a to 50n, for example, a building roof or an outer wall of a building.

On the other hand, the gateway 80 can be installed inside the building.

Accordingly, the gateway 80 installed inside the building can easily grasp the power generation information and the ID information from the plurality of solar modules 50a to 50n.

Particularly, in the case where the power line communication is performed between the infrared communication device 70 and the gateway 80, only one cable is sufficient between the infrared communication device 70 and the gateway 80, Simplicity, and manufacturing cost can be reduced.

2B is an enlarged view of the solar module and the infrared communication device of FIG. 2A.

The solar module 50 may include a microcomputer 580, an infrared communication unit 270, and a second infrared communication unit 271 for outputting a signal for infrared communication or receiving an infrared signal .

On the other hand, the infrared communication device 70 may include a microcomputer 75 and an infrared communication unit 71, 72 for outputting a signal for infrared communication or receiving an infrared signal.

Meanwhile, the gateway 80 may include a microcomputer 85 for outputting a signal for performing wired or wireless communication or for outputting a signal. Although not shown in the figure, it may further include a communication unit (not shown).

The infrared communication device 70 may further include a communication unit (not shown) for wired or wireless communication with the gateway 80.

The infrared communication unit 270 in the solar module 50 includes an infrared ray transmitting unit 270t and an infrared ray receiving unit 270r and the second infrared ray communication unit 271 includes an infrared ray transmitting unit 271t and an infrared ray receiving unit 271r .

The infrared ray transmitter 270t in the infrared ray communication unit 270 can output the power generation information and the ID information in the form of an infrared ray signal and correspondingly the infrared ray receiver 71b in the infrared ray communication unit 71 in the infrared ray communication apparatus 70 Can receive an infrared signal including power generation information and ID information of the solar module 50. [

The generation information may include at least one of voltage information and current information of the solar cell module 100, voltage information of the inverter unit 540, and current information.

The infrared ray transmitter 270t can output at least one of the voltage information and current information of the solar cell module 100, the voltage information of the inverter unit 540, and the current information to the infrared communication device 70 .

The microcomputer 75 extracts the power generation information and the ID information of the solar module 50 from the infrared signal and can convert it into a communication signal for wired or wireless communication.

Accordingly, the infrared communication device 70 can transmit the communication signal including the power generation information and the ID information to the gateway 80, and the microcomputer 85 in the gateway 80 can generate the power generation information And identification information of the solar module 50 and identification information of the solar module 50 can be confirmed.

On the other hand, the gateway 80 can output a scan signal for scanning the solar module. The scan signal is transmitted to the infrared communication device 70 via wired or wireless communication and the microcomputer 75 of the infrared communication device 70 can output a scan signal.

The infrared transmitter 71a in the infrared communication unit 71 in the infrared communication device 70 can transmit an infrared signal including a scan signal. Accordingly, the infrared receiver 270b in the infrared communication unit 270 in the solar module 50 receives the infrared signal including the scan signal.

The microcomputer 580 extracts a scan signal from the infrared signal and outputs a response signal including ID information in response to the scan signal.

Accordingly, the infrared ray transmitter 270a in the infrared ray communication unit 270 in the solar module 50 transmits the infrared ray signal including the response signal.

The infrared ray receiving section 71b in the infrared ray communication section 71 in the infrared ray communication apparatus 70 can output a response signal to the infrared ray transmitter section 270t in the infrared ray communication section 270, The infrared signal including the response signal of the solar module 50 can be received.

The microcomputer 75 extracts the response signal of the solar module 50 from the infrared signal and can convert it into a communication signal for wired or wireless communication.

Accordingly, the infrared communication device 70 can transmit the communication signal including the response signal to the gateway 80, and the microcomputer 85 in the gateway 80 extracts the ID information from the received response signal , The ID information of the solar module 50 can be confirmed.

Meanwhile, it is preferable that the transmission and reception of the scan signal and the response signal are performed prior to transmission and reception of the power generation information and ID information.

FIG. 3A is a diagram illustrating a solar light system according to another embodiment of the present invention.

The solar photovoltaic system 10b of Fig. 3a is similar to the solar photovoltaic system 10a of Fig. 2 except that an infrared communication device 70 is not provided and the nth solar photovoltaic module 50n and the gateway 80 There is a difference in performing infrared communication with each other.

Accordingly, the gateway 80 includes an infrared communication unit (not shown).

FIG. 3B is an enlarged view of the solar module and gateway of FIG. 3A.

2B, since the infrared communication device 70 is not provided, the gateway 80 may include a microcomputer 85 and infrared communication units 81 and 82.

The infrared ray receiving unit 71b in the infrared ray communication unit 71 in the gateway 80 can output the generated information and ID information to the infrared ray transmitting unit 270t in the infrared ray communication unit 270, , And the infrared signal including the power generation information and the ID information of the solar module 50.

The generation information may include at least one of voltage information and current information of the solar cell module 100, voltage information of the inverter unit 540, and current information.

Accordingly, the infrared ray transmitter 270t can output at least one of voltage information, current information, voltage information of the inverter unit 540, and current information of the solar cell module 100 to the gateway 80. [

The microcomputer 85 in the gateway 80 extracts the power generation information and the ID information of the solar module 50 from the infrared signal and confirms the extracted power generation information and ID information.

On the other hand, the microcomputer 85 of the gateway 80 can output a scan signal for scanning the photovoltaic module.

The infrared transmitter 81a in the infrared communication unit 81 in the gateway 80 can transmit the infrared signal including the scan signal. Accordingly, the infrared receiver 270b in the infrared communication unit 270 in the solar module 50 receives the infrared signal including the scan signal.

The microcomputer 580 extracts a scan signal from the infrared signal and outputs a response signal including ID information in response to the scan signal.

Accordingly, the infrared ray transmitter 270a in the infrared ray communication unit 270 in the solar module 50 transmits the infrared ray signal including the response signal.

The infrared ray receiving unit 81b in the infrared ray communication unit 81 in the gateway 80 is able to output the response signal in response to the infrared ray signal in the infrared ray communication unit 270. The infrared ray transmitting unit 270t in the infrared ray communication unit 270 can output a response signal with the infrared ray signal, The infrared signal including the response signal of the module 50 can be received.

The microcomputer 85 extracts the response signal of the solar module 50 from the infrared signal, extracts the ID information from the response signal, and confirms the ID information of the solar module 50.

Fig. 4 is a partially enlarged side view of the solar module of Fig. 2a.

An infrared communication unit 270 and a second infrared communication unit 271 disposed on the back surface of the solar module 50 are connected to a solar module 50a for infrared communication with an adjacent solar module, And 50n, respectively.

On the other hand, the solar module 50 may further include a frame 105 surrounding the solar cell module 100.

In the drawing, an upper frame 105a and a right frame 105b are exemplified as a part of the frame 105. Fig.

On the other hand, the infrared communication unit 270 and the second infrared communication unit 271 may be disposed adjacent to both sides of the frame 105.

In the drawing, an infrared communication unit 270 is disposed on the right side of the rear surface of the solar module 50, and a second infrared communication unit 271 is disposed on the left side.

On the other hand, an opening is desirably formed in the side surface region of the frame 105 where the infrared communication unit 270 and the second infrared communication unit 271 are disposed.

The figure illustrates an enlarged view of the infrared communication unit 270 disposed on the right side of the rear surface of the solar module 50. The infrared transmitting unit 270t and the infrared receiving unit 270r of the infrared communication unit 270 And two openings 106a and 106b are respectively formed in an area in the right frame 105b corresponding to the openings 106a and 106b.

Accordingly, in infrared communication, the directivity of infrared rays improves, and thus the signal-to-noise ratio is improved. Therefore, the accuracy of the infrared communication is improved.

Fig. 5A is a diagram showing an example of a circuit diagram inside a junction box in the solar module of Fig. 2A.

Referring to the drawings, the junction box 200 can convert DC power from the solar cell module 100 and output the converted power.

Particularly, in connection with the present invention, the junction box 200 can output AC power.

To this end, the junction box 200 may include a converter unit 530, an inverter unit 540, and a control unit 550 for controlling the converter unit 530 and the junction unit 540.

The junction box 200 may further include a bypass diode 510 for bypassing and a capacitor 520 for DC power storage.

The junction box 200 includes an input current sensing unit A, an input voltage sensing unit B, a converter output current detection unit C, a converter output voltage detection unit D, an inverter output current detection unit E, And an output voltage detecting unit (F).

On the other hand, the control unit 550 can control the converter unit 530 and the inverter unit 540.

On the other hand, the control unit 550 controls the converter unit 530 to perform DC conversion. In particular, maximum power follow-up (MPPT) control can be performed.

On the other hand, the control unit 550 controls the inverter unit 540 to control the AC conversion to be performed.

The bypass diode unit 510 includes bypass diodes Dc, Db, Da disposed between the first to fourth conductive lines 135a, 135b, 135c, and 135d of the solar cell module 100, . At this time, it is preferable that the number of the bypass diodes is one or more and smaller than the number of the conductive lines by one.

The bypass diodes Dc, Db and Da are connected to the first to fourth conductive lines 135a, 135b, 135c and 135d in the solar cell module 100, Power is input. The bypass diodes Dc, Db, and Da can be bypassed when a reverse voltage is generated from a DC power source from at least one of the first through fourth conductive lines 135a, 135b, 135c, and 135d have.

On the other hand, the DC power source through the bypass diode 510 can be input to the capacitor 520.

The capacitor unit 520 may store an input DC power input through the solar cell module 100 and the bypass diode unit 510. [

In the figure, the capacitor unit 520 includes a plurality of capacitors Ca, Cb, and Cc connected in parallel to each other. Alternatively, a plurality of capacitors may be connected in series- It is also possible to connect to the terminal. Alternatively, it is also possible that the capacitor unit 520 includes only one capacitor.

The converter unit 530 can convert the level of the input voltage from the solar cell module 100 via the bypass diode unit 510 and the capacitor unit 520. [

In particular, the converter unit 530 can perform power conversion using the DC power stored in the capacitor unit 520.

For example, the converter unit 530 may include a plurality of resistance elements or a transformer, and may perform voltage division with respect to the input voltage based on the set target power.

In the drawing, a tapped inductor converter is illustrated as an example of the converter unit 530, but a flyback converter, a buck converter, a boost converter, and the like are possible.

The converter section 530, that is, the tap inductor converter shown in the figure has a tap inductor T, a switching element S1 connected between the tap inductor T and the ground terminal, a switch element S1 connected to the output terminal of the tap inductor, And a diode D1 for performing the operation.

On the other hand, a dc short capacitor (not shown) may be connected between the output terminal of the diode D1, that is, between the cathode and the ground terminal.

Specifically, the switching element S1 can be connected between the taps of the tap inductor T and the ground terminal. The output terminal (secondary side) of the tap inductor T is connected to the anode of the diode D1 and the dc-side capacitor C1 is connected between the cathode of the diode D1 and the ground terminal .

On the other hand, the primary and secondary sides of the tap inductor T have opposite polarities. On the other hand, the tap inductor T may be referred to as a switching transformer.

On the other hand, the switching element S1 in the converter section 530 can be turned on / off based on the converter switching control signal from the control section 550. [ Thereby, the level-converted DC power can be outputted.

The inverter unit 540 can convert the DC power converted by the converter unit 530 into AC power.

In the drawing, a full-bridge inverter is illustrated. Namely, the upper and lower arm switching elements Sa and Sb connected in series to each other and the lower arm switching elements S'a and S'b are paired, and two pairs of upper and lower arm switching elements are connected in parallel to each other (Sa & Sb & S'b). Diodes may be connected in anti-parallel to each switching element Sa, S'a, Sb, S'b.

The switching elements Sa, S'a, Sb, and S'b in the inverter unit 540 can be turned on / off based on the inverter switching control signal from the control unit 550. [ As a result, an AC power source having a predetermined frequency can be output. Preferably, it has a frequency (approximately 60 Hz or 50 Hz) that is equal to the alternating frequency of the grid.

On the other hand, the capacitor C may be disposed between the converter unit 530 and the inverter unit 540.

The capacitor C may store the level-converted DC power of the converter unit 530. [ On the other hand, both ends of the capacitor C may be referred to as a dc stage, and accordingly, the capacitor C may be called a dc-stage capacitor.

The input current sensing unit A may sense the input current ic1 supplied from the solar cell module 100 to the capacitor unit 520. [

The input voltage sensing unit B may sense the input voltage Vc1 supplied from the solar cell module 100 to the capacitor unit 520. [ Here, the input voltage Vc1 may be equal to the voltage stored across the capacitor unit 520. [

The sensed input current ic1 and the input voltage vc1 may be input to the control unit 550. [

The converter output current detector C senses the output current ic2 output from the converter 530 or the dc converter current and the converter output voltage detector D outputs the output current ic2 output from the converter 530 And detects the output voltage vc2, i.e., the dc voltage. The sensed output current ic2 and the output voltage vc2 may be input to the control unit 550. [

On the other hand, the inverter output current detection unit E detects the current ic3 output from the inverter unit 540, and the inverter output voltage detection unit F detects the voltage vc3 output from the inverter unit 540 do. The detected current ic3 and the voltage vc3 are input to the control unit 550. [

On the other hand, the control unit 550 can output a control signal for controlling the switching element S1 of the converter unit 530. [ In particular, the control unit 550 controls the control unit 550 so that at least one of the detected input current ic1, the input voltage vc1, the output current ic2, the output voltage vc2, the output current ic3, or the output voltage vc3 On timing signal of the switching element S1 in the converter unit 530 can be output.

On the other hand, the control unit 550 can output an inverter control signal for controlling each switching element Sa, S'a, Sb, S'b of the inverter unit 540. In particular, the control unit 550 controls the control unit 550 so that at least one of the detected input current ic1, the input voltage vc1, the output current ic2, the output voltage vc2, the output current ic3, or the output voltage vc3 On timing signals of the respective switching elements Sa, S'a, Sb, S'b of the inverter unit 540 can be outputted based on the above-described signals.

On the other hand, the control unit 550 can control the converter unit 530 to calculate the maximum power point for the solar cell module 100 and output the DC power corresponding to the maximum power.

The junction box 200 may further include a micom 580 for controlling the infrared communication unit 270 and the second infrared communication unit 271.

For example, upon receiving an infrared signal including a scan signal through the infrared communication unit 270, the microcomputer 580 may extract a scan signal and transmit the scan signal to the controller 550. [

Then, it can receive the response signal from the control unit 550 and transmit the response signal including the ID information to the infrared communication unit 270.

The micom 580 is controlled to be bypassed through the infrared communication unit 270 when receiving an infrared signal including the power generation information and the ID information of the adjacent solar module through the second infrared communication unit 271 can do.

That is, the infrared signal including the power generation information and the ID information of the adjacent solar module can be output through the infrared communication unit 270 as it is.

On the other hand, the microcomputer 580 can control its own progress information and ID information to be outputted through the infrared communication unit 270. [

Fig. 5B is a diagram showing another example of a circuit diagram inside the junction box in the solar module of Fig. 2A.

Referring to FIG. 5B, the circuit diagram of the junction box of FIG. 5B differs from that of FIG. 5A in that the microcomputer 580 is not provided.

Accordingly, the function of the microcomputer 580 of FIG. 5A can be performed by the control unit 550. FIG.

6A is a diagram illustrating a solar light system according to another embodiment of the present invention.

The solar photovoltaic system 10c of Fig. 6a is similar to the solar photovoltaic system 10a of Fig. 2a, except that two junction boxes are provided.

The junction box 200 of FIG. 2A includes the diode unit 510, the capacitor unit 520, the converter unit 530, the control unit 540, and the micom 580 of FIG. 5A, The boxes 200a to 200n each include only a diode 510 and the second junction boxes 201a to 201b include a capacitor unit 520, a converter unit 530, a control unit 540, a microcomputer 580, As shown in Fig.

The infrared communication units 270a to 270b and the second infrared communication units 271a to 271b in the respective solar modules 50a to 50b are connected to the first junction boxes 200a to 200n and the second junction boxes 201a to 201b As shown in Fig.

6B is a diagram illustrating a solar light system according to another embodiment of the present invention.

The solar photovoltaic system 10d of FIG. 6b is similar to the solar photovoltaic system 10c of FIG. 6a, but differs therefrom in that it does not include the infrared communication device 70.

7 is a view showing a solar light system according to another embodiment of the present invention.

The solar cell system 10e of Fig. 7 differs from the solar cell module 10a of Fig. 2a in that the solar modules PV1-1 to PV3-8 are arranged in the form of a 3 * n matrix similar to the solar cell system 10a of Fig. have.

In the drawing, a first solar module string ST1 having solar modules PV1-1 to PV1-8, a second solar module string (ST1) having solar modules PV2-1 to PV2-8 ST2), and a third solar module string ST3 having solar modules PV3-1 to PV3-8.

Accordingly, the infrared communication device 70 preferably includes three infrared communication units 71, 72, and 73 corresponding to the first to third strings ST1 to ST3.

FIG. 8 is a flowchart illustrating a method of operating a solar photovoltaic system according to an embodiment of the present invention.

Hereinafter, the solar photovoltaic system 10a of FIG. 2 will be described as a reference.

Referring to FIG. 5, the gateway 80 may transmit a scan signal to the solar module 50 either wired or wirelessly upon completion of gateway installation or periodically (S810).

Accordingly, the infrared communication device 70 receives the scan signal, converts it into an infrared signal, and transmits it to the solar module 50.

The solar module 50 receives a scan signal in the form of an infrared signal through the infrared communication unit 270 in step S811 and transmits the scan signal to the adjacent solar module through the second infrared communication unit 271 (S815).

Then, the photovoltaic module 50 receives the ID information from each photovoltaic module including the adjacent photovoltaic module through the second infrared communication unit 271 (S820).

Then, the solar module 50 transmits the ID information of each solar module via the infrared communication unit 270 (S825).

The infrared communication device 70 receives the ID information of each solar module in the form of an infrared signal, converts the ID information, and transmits the ID information of each solar module to the gateway 80 through wired or wireless communication .

Accordingly, the gateway 80 receives the ID information of each photovoltaic module (S826).

Next, the solar module 50 transmits the generation information and the ID information of each solar module via the infrared communication unit 270 (S830).

The infrared communication device 70 receives the generation information and ID information of each solar module in the form of an infrared signal and converts the generated information and ID information to generate electric power generation information and ID information of each solar module in wired or wireless communication , And transmits it to the gateway 80.

Accordingly, the gateway 80 receives power generation information and ID information of each solar module (S831).

Figs. 9A and 10B are views referred to in the description of the operation method of Fig.

9A shows that the transmission of the scan signal Sg1a and the transmission of the response signal Sg1b to the first string ST1 are performed.

The scan signal from the gateway 80 is changed to an infrared signal in the infrared communication device 70 and sequentially transmitted from the solar module PV1-1 to the solar module PV1-8 by infrared communication .

The response signal from the solar module PV1-8 is transmitted in the direction of the solar module PV1-1 by the infrared communication and is transmitted to the gateway 80 via the infrared communication device 70 .

To this end, as described above, each solar module 50 includes an infrared communication unit 270 and a second infrared communication unit 271.

9B shows that the transmission of the scan signal Sg2a and the transmission of the response signal Sg2b to the second string ST2 are performed.

The scan signal from the gateway 80 is changed to an infrared signal in the infrared communication device 70 and sequentially transmitted from the solar module PV2-1 to the solar module PV2-8 by infrared communication .

The response signal from the solar module PV2-8 is transmitted in the direction of the solar module PV2-1 by the infrared communication and is transmitted to the gateway 80 via the infrared communication device 70 .

FIG. 9C shows that the transmission of the scan signal Sg3a and the transmission of the response signal Sg3b to the third string ST3 are performed.

The scan signal from the gateway 80 is changed to an infrared signal in the infrared communication device 70 and sequentially transmitted from the solar module PV3-1 to the solar module PV3-8 by infrared communication .

The response signal from the solar module PV3-8 is transmitted by the infrared communication in the direction of the solar module PV3-1 and is transmitted to the gateway 80 via the infrared communication device 70 .

10A shows that a scan signal Sgba transmission and a response signal Sgbb transmission are performed between a plurality of solar modules 50a and 50b and a gateway 80 without an infrared communication device.

The infrared ray transmitter 81a of the infrared ray communication unit 81 of the gateway 80 outputs a scan signal Sgba to the infrared ray receiver of the infrared ray communication unit 270a of the first solar module 50a, The infrared ray transmitting unit of the second infrared ray communication unit 271a, the infrared ray receiving unit of the infrared ray communication unit 270b of the second solar module 50b, and the infrared ray transmitting unit of the second infrared ray communication unit 271b.

In response to such a scan signal, a response signal in the form of an infrared signal is transmitted to the infrared receiver of the second infrared communication unit 271b of the second solar module 50b, the infrared transmitter of the infrared communication unit 270b, 50b are transmitted to the infrared receiving unit 81b of the infrared communication unit 81 of the gateway via the infrared receiving unit of the second infrared communication unit 271a and the infrared transmitting unit of the infrared communication unit 270a.

10B shows a case in which the generation information request signal Sgaa transmission and the generation information signal Sgab transmission are performed between the plurality of solar modules 50a and 50b and the gateway 80 without the infrared communication device Respectively.

The infrared ray transmitter 81a of the infrared ray communication unit 81 of the gateway 80 outputs a power generation information request signal Sgaa to the infrared ray transmitter 81a of the infrared ray communication unit 270a of the first solar module 50a, The infrared ray transmitting unit of the second infrared ray communication unit 271a, the infrared ray receiving unit of the infrared ray communication unit 270b of the second solar module 50b, and the infrared ray transmitting unit of the second infrared ray communication unit 271b.

The generation information signal Sgab in the form of an infrared signal is transmitted to the infrared ray receiving section of the second infrared ray communication section 271b of the second solar module 50b and the infrared ray receiving section of the infrared ray communication section 270b To the infrared transmission unit 81b of the infrared communication unit 81 of the gateway via the infrared transmission unit, the infrared transmission unit of the second infrared communication unit 271a of the first solar module 50a, and the infrared transmission unit of the infrared communication unit 270a do.

As a result, the infrared communication unit 270 includes an infrared receiving unit 270r for receiving a scan signal from the gateway 80 or an adjacent solar module, an infrared receiving unit 270r for transmitting infrared signals to the gateway 80 or an adjacent solar module, And a transmitting unit 270t.

The infrared transmitter 270t transmits at least one of the voltage information and the current information of the solar cell module 100, the voltage information of the inverter unit 540 and the current information to the gateway 80 or the adjacent first solar module (50a-50n).

On the other hand, the second infrared communication unit 271 includes an infrared transmitting unit for transmitting a scan signal to an adjacent solar module, and an infrared receiving unit for receiving ID information of an adjacent solar module from an adjacent solar module .

On the other hand, the infrared receiver 270b can receive at least one of the voltage information and the current information of the adjacent solar module from the adjacent solar module.

FIG. 11 is a front view of the solar module of FIG. 3, and FIG. 12 is a rear view of the solar module of FIG.

Referring to the drawings, a solar module 50 according to an embodiment of the present invention may include a solar cell module 100 and a junction box 200 located on the back surface of the solar cell module 100.

The junction box 200 may include at least one bypass diode that is bypassed to prevent hot spots in the case of shadow generation or the like.

On the other hand, Fig. 9 and the like illustrate that three bypass diodes (Da, Db, and Dc in Fig. 9) are provided corresponding to the four solar battery strings in Fig.

On the other hand, the junction box 200 can convert DC power supplied from the solar cell module 100. This will be described with reference to FIG.

On the other hand, the solar cell module 100 may include a plurality of solar cells.

In the figure, a plurality of sink cells are connected in series by ribbons (133 in FIG. 13) to form a solar cell string 140. By this, six strings 140a, 140b, 140c, 140d, 140e and 140f are formed, and each string includes ten solar cells. Unlike the drawings, various modifications are possible.

On the other hand, each solar cell string can be electrically connected by a bus ribbon. 11 shows the first solar cell string 140a and the second solar cell string 140b by the bus ribbons 145a, 145c and 145e arranged at the lower part of the solar cell module 100, The battery string 140c and the fourth solar cell string 140d illustrate that the fifth solar cell string 140e and the sixth solar cell string 140f are electrically connected.

11 shows the second solar cell string 140b and the third solar cell string 140c respectively by the bus ribbons 145b and 145d disposed on the upper part of the solar cell module 100, And that the battery string 140d and the fifth solar cell string 140e are electrically connected.

On the other hand, the ribbon connected to the first string, the bus ribbons 145b and 145d, and the ribbon connected to the fourth string are electrically connected to the first through fourth conductive lines 135a, 135b, 135c, and 135d, respectively The first to fourth conductive lines 135a, 135b, 135c and 135d are connected to bypass diodes (Da, Db and Dc in Fig. 9) in the junction box 200 arranged on the back surface of the solar cell module 100, Respectively. In the drawing, the first through fourth conductive lines 135a, 135b, 135c, and 135d extend through the openings formed on the solar cell module 100 to the back surface of the solar cell module 100. FIG.

It is preferable that the junction box 200 is disposed closer to an end of the solar cell module 100 where the conductive lines extend.

13 is an exploded perspective view of the solar cell module of Fig.

Referring to FIG. 13, the solar cell module 100 of FIG. 11 may include a plurality of solar cells 130. The first sealing material 120 and the second sealing material 150 located on the lower surface and the upper surface of the plurality of solar cells 130 and the rear substrate 110 and the second sealing material 120 located on the lower surfaces of the first sealing material 120, And may further include a front substrate 160 positioned on the top surface of the sealing member 150.

The solar cell 130 is a semiconductor device that converts solar energy into electrical energy. The solar cell 130 may be a silicon solar cell, a compound semiconductor solar cell, a tandem solar cell, Dye-sensitized or CdTe, CIGS type solar cells, thin film solar cells, and the like.

The solar cell 130 is formed of a light receiving surface on which solar light is incident and a rear surface opposite to the light receiving surface. For example, the solar cell 130 includes a silicon substrate of a first conductivity type, a second conductivity type semiconductor layer formed on the silicon substrate and having a conductivity type opposite to that of the first conductivity type, An antireflection film formed on the second conductive type semiconductor layer and having at least one opening exposing a part of the surface of the second conductive type semiconductor layer; And a rear electrode formed on the rear surface of the silicon substrate.

Each solar cell 130 may be electrically connected in series, parallel, or series-parallel. Specifically, a plurality of solar cells 130 can be electrically connected by a ribbon 133. [ The ribbon 133 may be bonded to the front electrode formed on the light receiving surface of the solar cell 130 and the rear electrode collecting electrode formed on the rear surface of another adjacent solar cell 130. [

In the figure, it is illustrated that the ribbon 133 is formed in two lines, and the solar cell 130 is connected in series by the ribbon 133 to form the solar cell string 140.

Thus, six strings 140a, 140b, 140c, 140d, 140e and 140f are formed as described with reference to FIG. 11, and each string may include ten solar cells.

The back substrate 110 may be, but is not limited to, a TPT (Tedlar / PET / Tedlar) type having a waterproof, insulating and ultraviolet shielding function as a back sheet. In FIG. 9, the rear substrate 110 is shown as a rectangular shape. However, the rear substrate 110 may be formed in various shapes such as a circular shape and a semicircular shape according to the environment in which the solar cell module 100 is installed.

The first sealing member 120 may be attached to the rear substrate 110 to have the same size as the rear substrate 110 and a plurality of solar cells 130 may be formed on the first sealing member 120 And can be positioned adjacent to each other so as to achieve the same.

The second sealing member 150 may be positioned on the solar cell 130 and may be laminated to the first sealing member 120.

Here, the first sealant 120 and the second sealant 150 allow each element of the solar cell to chemically bond. The first sealing material 120 and the second sealing material 150 can be various examples such as an ethylene vinyl acetate (EVA) film.

On the other hand, the front substrate 160 is preferably placed on the second sealing material 150 so as to transmit sunlight, and is preferably made of tempered glass in order to protect the solar cell 130 from an external impact or the like. Further, it is more preferable to use a low-iron-content tempered glass containing a small amount of iron in order to prevent the reflection of sunlight and increase the transmittance of sunlight.

The solar cell module and the solar cell system having the solar cell module according to the present invention are not limited to the configuration and method of the embodiments described above, All or some of them may be selectively combined.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (19)

A solar cell module comprising a plurality of solar cells;
An inverter unit for outputting the converted AC power based on the DC power from the solar cell module;
A cable for outputting AC power from the inverter unit to the outside;
An infrared communication unit for transmitting at least one of voltage information, current information, voltage information and current information of the solar cell module to an adjacent first solar module, an external gateway, or an external infrared communication device;
Current information, the voltage information of the inverter unit in the second solar module, and the current information in the second solar module adjacent to the first solar module in the direction opposite to the first solar module, 2 infrared communication unit,
Wherein the infrared communication unit transmits at least one of voltage information and current information of the solar cell module in the second solar module, voltage information of the inverter unit in the second solar module, and current information to the adjacent first solar module, To an infrared communication device of a gateway or an external infrared communication device. delete The method according to claim 1,
Wherein the infrared communication unit and the second infrared communication unit are respectively disposed at both lateral ends of the solar module. The method according to claim 1,
And a frame surrounding the solar cell module,
Wherein the infrared communication unit and the second infrared communication unit are disposed adjacent to both sides of the frame,
Wherein an opening is formed in the infrared communication unit of the frame and in a side area where the second infrared communication unit is disposed. The method according to claim 1,
And a junction box having the inverter unit and disposed on a back surface of the solar cell module,
Wherein the infrared communication unit is disposed apart from the junction box. 6. The method of claim 5,
Within the junction box,
And a microcomputer for controlling the infrared communication unit. The method according to claim 1,
The infrared communication unit includes:
An infrared receiver for receiving a scan signal from the gateway, the infrared communication device, or the adjacent first solar module;
And an infrared transmitter for transmitting ID information to the gateway, the infrared communication device, or the adjacent first solar module. 8. The method of claim 7,
Wherein the infrared transmitter comprises:
Characterized in that at least one of voltage information, current information, voltage information of the inverter section, and current information of the solar cell module is transmitted to the gateway, the infrared communication device or the adjacent first solar module module. The method according to claim 1,
Wherein the second infrared communication unit comprises:
An infrared transmitting unit for transmitting a scan signal to the adjacent second solar module;
And an infrared receiver for receiving ID information of the second solar module from the adjacent second solar module. 10. The method of claim 9,
The infrared receiver includes:
Wherein at least one of voltage information and current information of the second solar module is received from the adjacent second solar module. A plurality of solar modules outputting AC power to a grid and outputting power generation information by infrared communication;
An infrared communication device for receiving generation information from the solar module by the infrared communication;
And a gateway for receiving the generation information from the infrared communication device based on wired or wireless communication other than the infrared communication,
The solar module,
A solar cell module comprising a plurality of solar cells;
An inverter unit for outputting the converted AC power based on the DC power from the solar cell module;
A cable for outputting AC power from the inverter unit to the outside;
An infrared communication unit for transmitting at least one of voltage information, current information, voltage information and current information of the solar cell module to an adjacent first solar module, an external gateway, or an external infrared communication device;
Current information, the voltage information of the inverter unit in the second solar module, and the current information in the second solar module adjacent to the first solar module in the direction opposite to the first solar module, 2 infrared communication unit,
Wherein the infrared communication unit transmits at least one of voltage information and current information of the solar cell module in the second solar module, voltage information of the inverter unit in the second solar module, and current information to the adjacent first solar module, To an external infrared communication device. delete delete 12. The method of claim 11,
The solar module,
And a frame surrounding the solar cell module,
Wherein the infrared communication unit and the second infrared communication unit are disposed adjacent to both sides of the frame,
Wherein an opening is formed in the infrared communication part of the frame and the side area in which the second infrared communication part is disposed. 12. The method of claim 11,
The solar module,
And a junction box having the inverter unit and disposed on a back surface of the solar cell module,
Wherein the infrared communication unit is disposed apart from the junction box. 12. The method of claim 11,
The gateway comprises:
A scan signal is transmitted to the outside,
The infrared communication unit includes:
An infrared receiver for receiving a scan signal from the gateway, the infrared communication device, or the adjacent first solar module;
Further comprising: an infrared transmitting unit for transmitting ID information to the gateway, the infrared communication device, or the adjacent first solar module. 17. The method of claim 16,
The gateway comprises:
And identifies each of the solar modules based on ID information of each solar module and ID information of the solar module. 12. The method of claim 11,
Wherein the second infrared communication unit comprises:
An infrared transmitting unit for transmitting a scan signal to the adjacent second solar module;
And an infrared receiver for receiving ID information of the second solar module from the adjacent second solar module. A plurality of solar modules outputting AC power to a grid and outputting power generation information by infrared communication;
And a gateway for receiving generation information from the solar module by the infrared communication,
The solar module,
A solar cell module comprising a plurality of solar cells;
An inverter unit for outputting the converted AC power based on the DC power from the solar cell module;
A cable for outputting AC power from the inverter unit to the outside;
An infrared communication unit for transmitting at least one of voltage information, current information, voltage information and current information of the solar cell module to an adjacent first solar module, an external gateway, or an external infrared communication device;
Current information, the voltage information of the inverter unit in the second solar module, and the current information in the second solar module adjacent to the first solar module in the direction opposite to the first solar module, 2 infrared communication unit,
Wherein the infrared communication unit transmits at least one of voltage information and current information of the solar cell module in the second solar module, voltage information of the inverter unit in the second solar module, and current information to the adjacent first solar module, To an external infrared communication device.
KR1020160100791A 2016-08-08 2016-08-08 Photovoltaic module and photovoltaic system including the same KR101868372B1 (en)

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Citations (2)

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KR101409774B1 (en) * 2014-02-14 2014-06-25 주식회사 텐코리아 Monitoring apparatus of individual solar cell panel for photovoltaics facility monitoring system
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Publication number Priority date Publication date Assignee Title
KR101954194B1 (en) * 2012-07-16 2019-03-05 엘지전자 주식회사 Power converting apparatus, and photovoltaic module

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Publication number Priority date Publication date Assignee Title
KR101409774B1 (en) * 2014-02-14 2014-06-25 주식회사 텐코리아 Monitoring apparatus of individual solar cell panel for photovoltaics facility monitoring system
DE202015006481U1 (en) * 2015-09-14 2015-10-20 Carlo Gavazzi Services Ag Modular measuring system for photovoltaic systems

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