TWM611886U - Wireless monitoring system for solar energy site - Google Patents

Abstract

The present invention discloses a wireless monitoring system for a solar case field, comprising: more than one power generation module; more than one inverter, respectively electrically connected to each power generation module, for receiving the power generation of each power generation module and respectively outputting one Power generation data; more than one signal transceiver connected to each inverter; a signal concentrator wirelessly connected to each signal transceiver to receive multiple power generation data; and a monitoring unit connected to the signal center wirelessly through the network The monitoring unit is used to receive the complex power generation data transmitted by the signal concentrator; each inverter, each signal transceiver, and the signal concentrator each contain a unique identification code, when any identification code fails to be combined The power generation data is uploaded and reported to the monitoring unit, and the monitoring unit determines which device is abnormal according to the identification code.

Description

Wireless monitoring system for solar field

A wireless monitoring system, in particular, is used in a solar field, which uses the unique identification code of each device in the system to identify the power generation module from which the power generation data comes from, and can monitor the power generation of each power generation module from a distance surveillance system.

With the rise of environmental awareness, the proportion of green power generation is increasing day by day. Solar power is an example. Due to the strong energy of the sun, it is almost inexhaustible. Therefore, various countries have invested in the research and development of solar power generation in order to increase the power generation efficiency of solar power generation.

At this stage, in order to improve the power generation efficiency and power generation capacity of solar panels, solar power generation sites are generally set up in open areas far from the urban area. Since there are no high-rise buildings to block the sun in places far from the urban area, and there are also larger areas where more solar panels can be installed, the power generation efficiency and production capacity can be significantly improved.

Although power generation efficiency and power generation capacity have been improved, other problems have arisen relatively. Generally speaking, a considerable number of solar panels will be installed in a solar field to increase the power generation capacity. When a solar panel has abnormal power generation or even failure, the management staff of the solar field can only know that the power generation status is not ideal, but cannot Know which solar panel has the problem. In the same way, other equipment connected to solar panels, such as inverters and current sensors, may be abnormal due to environmental factors (sun exposure, wind and rain), but the management personnel of the solar field cannot know which equipment it is. If there is a problem, you can only go to the solar field to check the line to confirm what kind of equipment is malfunctioning. However, in this case, it is necessary to send staff to the solar field for inspection and maintenance, and the solar field is often set up in remote places, which greatly increases the cost of transportation, time and labor.

In order to allow the managers of the solar energy field to remotely monitor the solar energy field and immediately know which equipment in the solar energy field is abnormal, this new model proposes a solar energy field wireless monitoring system that uses the unique identification code of each device After being combined with the power generation data, it is uploaded and reported to the monitoring unit, so that the monitoring unit can determine which equipment is abnormal according to the uploaded identification code.

In order to achieve the above-mentioned purpose, the wireless monitoring system of the solar case field of the present invention includes: More than one power generation module, each including a plurality of solar panels connected in series; One or more inverters are respectively electrically connected to each power generation module to measure the power generation of each power generation module and generate power generation data, and each inverter includes a first identification code; More than one signal transceiver is connected to each inverter, and each signal transceiver includes a second identification code; A signal concentrator is wirelessly connected to each signal transceiver. The signal concentrator is used to receive plural power generation data and includes a third identification code. Each power generation data includes each power generation data of each power generation module and each corresponding power generation data. The first identification code and each second identification code; and A monitoring unit is wirelessly connected to the signal concentrator via a network. The monitoring unit is used to receive the complex power generation data and the third identification code sent by the signal concentrator, and the monitoring unit can adjust each signal transceiver and The communication frequency between the signal concentrators.

The present invention uses the first identification code unique to the inverter, the second identification code unique to the signal transceiver, and the third identification code unique to the signal concentrator to enable the monitoring unit to be installed even if At a location far away from the solar field, it is still possible to identify which power generation module in which solar field the power generation data comes from based on the first to third identification codes, and when any identification code fails to upload the monitoring module When grouping, determine which equipment is abnormal.

Please refer to Figure 1. This model is a wireless monitoring system for solar farms, in which the model can use Low-Power Wide-Area Network (LPWAN) wireless communication technology, which can be used in single solar farms and solar farms. Low-power wide area network wireless data transmission between the field and the solar field. The present invention includes: more than one power generation module 10A-10B, more than one inverter 20A, 20B, more than one signal transceiver 30A-30C, a signal concentrator 40 and a monitoring unit 50.

Each power generation module 10A, 10B includes a plurality of solar panels 11A, 11B connected in series. Specifically, the power generation module 10A includes a plurality of solar panels 11A connected in series, and the power generation module 10B includes a plurality of solar panels connected in series.板11B. The one or more power generation modules 10A, 10B are used to receive sunlight and generate electricity, and respectively provide power generation. The one or more power generation modules 10A, 10B can be installed in the same solar field, or can be installed in different solar fields.

The one or more inverters 20A, 20B are electrically connected to the power generation modules 10A, 10B, respectively, for receiving the power generation of each power generation module 10A, 10B and outputting power generation data respectively. At the same time, each inverter 20A, 20B has a first identification code, and each first identification code represents an inverter 20A, 20B. Each first identification code may be a code stored in each inverter 20A, 20B by the manufacturer during manufacture of each inverter 20A, 20B. For example, the first identification code of the inverter 20A is 01, the The first identification code of the inverter 20B is 02. As shown in FIG. 1, the inverter 20A is connected to the power generation module 10A, and the inverter 20B is connected to the power generation module 10B.

Each signal transceiver 30A, 30B is connected to each inverter 20A, 20B, so that the signal transceiver 30A is connected to the power generation module 10A through the inverter 20A, and the signal transceiver 30B is connected to the power generation module through the inverter 20B. Module 10B. Each signal transceiver 30A, 30B has a second identification code and is used to output a piece of power generation data. Each second identification code can be used for each signal transceiver 30A, 30B. The code stored in 30B, for example, the second identification code of each signal transceiver 30A is 0A, and the second identification code of the signal transceiver 30B is 0B. Each signal transceiver 30A, 30B is used to receive each power generation data and each first identification code corresponding to each power generation data. For example, if the inverter 20A receives the power generation data of the power generation module 10A, then the signal transceiver The generator 30A receives the power generation data of the power generation module 10A and the first identification code of the inverter 20A; the inverter 20B receives the power generation data of the power generation module 10B, and the signal transceiver 30B receives the power generation data The power generation data of the module 10B and the first identification code of the inverter 20B. The signal transceivers 30A, 30B can be, but not limited to, be arranged in the same solar field. Each signal transceiver 30A, 30B can be a low-power wide area network communication transceiver. Each piece of power generation data includes power generation data of each power generation module, a first identification code and a second identification code corresponding to each power generation data.

The signal transceivers 30A, 30B return the power generation data of each power generation module 10A, 10B and the first identification codes corresponding to the power generation data to the monitoring unit 50 every time a first cycle time has elapsed, and the first The cycle time can be adjusted by the monitoring unit 50.

The signal concentrator 40 is wirelessly connected to the signal transceivers 30A and 30B. The signal concentrator 40 includes a central processing unit 41, a wireless communication unit 43, and a network communication unit 45. The central processing unit 41 may be a central processing unit (CPU); the wireless communication unit 43 is electrically connected to the central processing unit 41, and wirelessly connected to the signal transceivers 30A, 30B for wirelessly receiving power generation data. In this embodiment, the wireless communication unit 43 is a low-power wide area network communication circuit; The communication unit 45 is electrically connected to the central processing unit 41.

The signal concentrator 40 is used to receive the complex power generation data, and return the complex power generation data to the monitoring unit 50 every second cycle time. For example, the signal concentrator 40 receives a first power generation data and a second power generation data every 5 minutes, and the first power generation data includes the power generation data of the power generation module 10A and the first power generation data of the inverter 20A. Identification code and the second identification code of the signal transceiver 30A; the second power generation data includes the power generation data of the power generation module 10B, the first identification code of the inverter 20B, and the second identification code of the signal transceiver 30B Identifier. The signal concentrator 40 itself has a third identification code, and the third identification code may be mac ID.

Furthermore, the signal concentrator 40 can receive the multiple power generation data of a single solar field, and can also receive the multiple power generation data of different solar fields at the same time.

The monitoring unit 50 is wirelessly connected to the signal concentrator 40 through a network, wherein the monitoring unit 50 can be wirelessly connected to the network communication unit 45 for receiving the plurality of power generation data and the third power generation data transmitted by the network communication unit 45 Identifier. That is, the monitoring unit 50 can identify which power generation module 10A, 10B the power generation data belongs to according to any power generation data and the corresponding first identification code, the second identification code, and the third identification code. The monitoring unit 50 can also adjust the cycle time, for example, to receive the complex power generation data every 3 minutes, or to receive the complex power generation data every 10 minutes. In a preferred embodiment, the monitoring unit 50 is arranged in a control room 51, and the control room 51 can be located near the solar power station or far away from the solar power station, as long as a wireless signal can be achieved Just transfer. In addition, under the condition that the wireless signal transmission range of the signal concentrator 40 allows, the complex power generation data of multiple solar fields can be received at the same time, so that the control room 51 can remotely monitor one or more solar fields.

For example, if the power generation data output by the power generation module 10A is 300 degrees (W*hr), and the first identification code of the inverter 20A is 01, the second identification code is 0A, and the third identification code is 0A. If the code is 1111, the monitoring unit 50 receives the power generation data as 010A1111300, which can recognize that the power generation data comes from the power generation module 10A, and the power generation of the power generation module 10 is 300 degrees.

The present invention may further include more than one environmental sensor 60. Each environmental sensor 60 may be electrically connected to another signal transceiver 30C for sensing an environmental data of the solar field, and the environmental data may include the solar case. Field temperature, sunshine, rainfall and other data, in which the signal transceiver 30C is the same as the aforementioned signal transceivers 30A, 30B, both are low-power wide area network communication transceivers, and are wirelessly connected to the signal concentrator 40, and have This second identification code of oneself. The one or more environmental sensors 60 may include a thermometer, a sun meter, a cloud camera, an hour and rain meter, and combinations thereof.

Similarly, the signal concentrator 40 will return the environmental data together with the second identification code of the signal transceiver 30C to the monitoring unit, so that the monitoring unit 50 can determine which solar field the environmental data originated from Which environmental sensor 60 of.

With the first identification code, the second identification code, and the third identification code, the monitoring unit 50 can not only identify which power generation module 10A, 10B of which solar power station the power generation data comes from, but also has the following applications :

1. When a power generation data is abnormal, the monitoring unit 50 determines which power generation module 10A the power generation data comes from according to the first identification code, the second identification code, and the third identification code corresponding to the power generation data , 10B.

2. When one of the inverters 20A, 20B or a signal transceiver 30A, 30B is abnormal, the inverter 20A, 20B or the signal transceiver 30A, 30B may not use the first identification code or the The second identification code is returned to the signal concentrator 40, so the monitoring unit 50 can determine whether the device is abnormal based on the device that has not returned the identification code.

For example, if the inverter 20A is abnormal and cannot return the power generation data and the first identification code to the monitoring unit 50, the monitoring unit 50 only receives the second identification code of the signal transceiver 30A, The monitoring unit 50 can determine that the abnormality comes from the inverter 20A or the power generation module 10A, and perform further detection on the inverter 20A and the power generation module 10A.

3. The monitoring device 50 can adjust the first cycle time reported by each signal transceiver 30A-30C, and adjust the second cycle time reported by each signal concentrator 40. Generally speaking, each signal transceiver 30A-30C and the signal concentrator 40 will transmit data in a specific frequency band, and the signal concentrator 40 and the monitoring unit 50 will also transmit data in a specific frequency band. If the existing communication frequency bands between the signal transceivers 30A~30C and the signal concentrator 40 are interfered, the signal transceivers 30~30C must report multiple times before the power generation data of each power generation module 10A, 10B , Each first identification code corresponding to each power generation data is correctly returned to the monitoring unit 50. The monitoring unit 50 can adjust the communication frequency between each signal transceiver 30A~30C and the signal concentrator 40, so that each signal transceiver 30~30C can quickly and correctly report each power generation data of each power generation module 10A, 10B and each first identification code corresponding to each power generation data to the monitoring unit 50 in the adjusted frequency band. The frequency band between the signal concentrator 40 and the monitoring unit 50 is also the same.

4. The monitoring unit 50 can also monitor the received signal strength of the complex power generation data, so as to adjust the frequency band between the monitoring unit 50 and the signal concentrator 40, so that the signal transmission strength is higher and the transmission is more stable , There is no need to send staff to the solar energy case site to check the line to confirm whether there is a problem with the line.

10A, 10B: power generation module 11A, 11B: solar panels 20A, 20B: inverter 30A, 30B, 30C: signal transceiver 40: Signal Concentrator 41: Central Processing Unit 43: wireless communication unit 45: network communication unit 50: Monitoring unit 51: control room 60: Environmental sensor

Figure 1: Block diagram of the circuit of the present invention.

10A, 10B: power generation module

11A, 11B: solar panels

20A, 20B: inverter

30A, 30B, 30C: signal transceiver

40: Signal Concentrator

41: Central Processing Unit

43: wireless communication unit

45: network communication unit

50: Monitoring unit

51: control room

60: Environmental sensor

Claims (10)

A wireless monitoring system for solar energy case, including: More than one power generation module, each power generation module includes a plurality of solar panels connected in series; One or more inverters are respectively electrically connected to each power generation module to receive the power generation of each power generation module and respectively output a power generation data, and each inverter has a first identification code; More than one signal transceiver is connected to each inverter, and each signal transceiver has a second identification code and outputs a piece of power generation data. Each piece of power generation data includes the power generation data of each power generation module and corresponds to each power generation data. The first identification code and the second identification code of the data; A signal concentrator wirelessly connected to each signal transceiver, the signal concentrator having a third identification code and receiving the plurality of power generation data; and A monitoring unit is wirelessly connected to the signal concentrator via a network, the monitoring unit is used to receive the plurality of power generation data and the third identification code sent by the signal concentrator, and the monitoring unit can adjust each signal transceiver The frequency of communication with the signal concentrator. For example, in the wireless monitoring system of the solar energy field described in claim 1, each signal transceiver transmits the power generation data of each power generation module and the first identification codes corresponding to the power generation data to the Monitoring unit, and the first cycle time is an adjustable cycle time. For example, in the wireless monitoring system of the solar energy field according to claim 2, the signal concentrator returns the plurality of power generation data to the monitoring unit after a second cycle time, and the second cycle time is adjusted by the monitoring unit. For the wireless monitoring system of the solar energy field described in claim 3, the signal concentrator includes: A central processing unit; A wireless communication unit electrically connected to the central processing unit and wirelessly connected to each signal transceiver, the wireless communication unit being used for wirelessly receiving each power generation data; and A network communication unit is electrically connected to the central processing unit for returning the plurality of power generation data and the third identification code to the monitoring unit. According to claim 4, the wireless monitoring system for a solar energy field further includes more than one environmental sensor, and each environmental sensor is electrically connected to another signal transceiver for sensing an environmental data of the solar energy field. For example, in the wireless monitoring system of the solar field in claim 5, each environmental sensor includes the second identification code of its own, and each environmental sensor returns the second identification code and the environmental data to the signal transceiver . According to the wireless monitoring system for a solar field in claim 6, the one or more environmental sensors include a thermometer, a sun meter, a cloud condition camera, an hour and rain meter, and a combination thereof. For the solar energy field wireless monitoring system described in claim 7, the wireless communication unit is a low-power wide area network communication circuit. According to the wireless monitoring system for a solar field in claim 8, the one or more power generation modules are installed in the same solar field. For example, in the wireless monitoring system for a solar field in claim 8, the one or more power generation modules are installed in different solar field, and the signal concentrator receives the plural power generation data of a plurality of solar fields at the same time.

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