CN107565676A - A kind of photovoltaic apparatus and photovoltaic system - Google Patents
A kind of photovoltaic apparatus and photovoltaic system Download PDFInfo
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- CN107565676A CN107565676A CN201610522325.5A CN201610522325A CN107565676A CN 107565676 A CN107565676 A CN 107565676A CN 201610522325 A CN201610522325 A CN 201610522325A CN 107565676 A CN107565676 A CN 107565676A
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- photovoltaic
- photovoltaic apparatus
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- power switch
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- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The present invention, which provides a kind of photovoltaic apparatus and photovoltaic system, photovoltaic apparatus, to be included：DC bus capacitor, half-bridge power switch circuit and controller；DC bus capacitor includes the first electric capacity and the second electric capacity；The positive output end of the first end connection photovoltaic module of first electric capacity, the second end of the first electric capacity connect the first end of the second electric capacity, the negative output terminal of the second end connection photovoltaic module of the second electric capacity；Half-bridge power switch circuit includes controlled tr tube；Controller, for the on off state of output switch control signal control controlled tr tube, so that half-bridge power switch circuit output DC PWM ripple or exchange PWM ripples；When switch controlling signal is HVDC Modulation signal, half-bridge power switch circuit output DC PWM ripple；When switch controlling signal is AC modulated signals, half-bridge power switch circuit output exchange PWM ripples.It can apply to need the occasion of direct current supply, Alternating Current Power Supply occasion can also be applied to, so improve the versatility of the photovoltaic apparatus.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, more particularly to a kind of photovoltaic apparatus of AC/DC and photovoltaic system
System.
Background technology
Traditional photovoltaic module generally comprises solar cell, framework, glass, backboard and terminal box etc..In its terminal box
Generally bypass diode, bypass diode reversal connection are blocked or failure in cell piece in the photovoltaic cell both ends of one group of series connection
When positive bias turn on, play a part of protect photovoltaic cell.In the improvement to traditional components, some manufacturers use MOSFET generations
For conventional diode to improve efficiency, also some is integrated with data acquisition and communication system.Conventional photovoltaic assembly function is simple, and one
As need external converter could grid-connected or powering load.Fig. 1 is a kind of example of conventional photovoltaic component.
For the deficiency of conventional photovoltaic component, there is DC Module formula photovoltaic module and AC module formula photovoltaic in the market
Component.
Referring to Fig. 2, the figure is the schematic diagram of DC Module formula photovoltaic module.
DC Module formula photovoltaic module includes traditional photovoltaic module, DC/DC power switch circuits and controller, and output is straight
Electric energy is flowed, and MPPT can be realized.DC Module formula photovoltaic module output be DC voltage, can directly as dc bus,
Or the dc bus of higher voltage is formed after series connection.
Referring to Fig. 3, the figure is the schematic diagram of AC module formula photovoltaic module.
AC module formula photovoltaic module includes traditional photovoltaic module, DC/AC power switch circuits and controller, and output is handed over
Electric energy is flowed, and can be directly connected to power network or powered directly to AC load.In three kinds of above-mentioned photovoltaic modulies, the first
Traditional components can not realize that electric energy is adjusted, although behind two kinds of conversion that can realize electric energy and realize each component independence
MPPT, but the output of component can only be alternating voltage or can only be DC voltage.The following diversified photovoltaic application of reply,
The problem of flexibility and poor universality be present in above-mentioned several technologies.
The content of the invention
In order to solve above technical problem present in prior art, the present invention provides a kind of photovoltaic of AC/DC and set
Standby and photovoltaic system, it can be controlled to export exchange and direct current can be exported, flexibility and versatility are higher, can be with
Adapt to following diversified photovoltaic application.
The embodiment of the present invention provides a kind of photovoltaic apparatus, including：Photovoltaic module, DC bus capacitor, half-bridge power switch electricity
Road and controller；
The DC bus capacitor includes the first electric capacity and the second electric capacity；The first end of first electric capacity connects the photovoltaic
The positive output end of component, the second end of first electric capacity connect the first end of second electric capacity, and the of second electric capacity
Two ends connect the negative output terminal of the photovoltaic module；
The half-bridge power switch circuit includes controlled tr tube；
The controller, the on off state of the controlled tr tube is controlled for output switch control signal, so that described
Half-bridge power switch circuit output DC PWM ripple or exchange PWM ripples；When the switch controlling signal is HVDC Modulation signal,
The half-bridge power switch circuit output DC PWM ripple；When the switch controlling signal is AC modulated signals, the half-bridge
Power switch circuit output exchange PWM ripples.
Preferably, when the half-bridge power switch circuit is two level half-bridge power switch circuit, the half-bridge power
On-off circuit includes first switch pipe and second switch pipe；
The first end of the first switch pipe connects the first end of first electric capacity, the second end of the first switch pipe
The first end of the second switch pipe is connected, the second end of the second switch pipe connects the negative output terminal of the photovoltaic module.
Preferably, when the half-bridge power switch circuit output DC PWM ripple：
Second end of the first switch pipe be the DC PWM ripple positive output end, the second of the second switch pipe
Hold as the negative output terminal of the DC PWM ripple；
Or,
The first end of the first switch pipe be the DC PWM ripple positive output end, the second of the first switch pipe
Hold as the negative output terminal of the DC PWM ripple.
Preferably, when the half-bridge power switch circuit output exchanges PWM ripples：
Positive output end of second end of first electric capacity as the exchange PWM ripples；
Negative output terminal of the first end of the second switch pipe as the exchange PWM ripples.
Preferably, the load of the photovoltaic apparatus is direct current generator, heating wire, incandescent lamp or LED street lamp.
Preferably, the photovoltaic apparatus is multiple that the plurality of photovoltaic apparatus leads to after being cascaded for HVDC
Interrogate system power supply.
Preferably, the photovoltaic apparatus is multiple that the plurality of photovoltaic apparatus connects inverter after being cascaded
Input, the output end connection AC network of the inverter；Or, the plurality of photovoltaic apparatus connection in series-parallel together afterwards connection described in
The input of inverter, the output end of the inverter connect the AC network.
Preferably, the photovoltaic apparatus is multiple that the multiple photovoltaic apparatus for exporting different DC PWM ripples are connected on one
Play the A phases of output alternating current；
Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current B phases；
Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current C phases.
Preferably, the photovoltaic apparatus is multiple that the plurality of photovoltaic apparatus is powered after being cascaded for household electrical appliance,
Or, the plurality of photovoltaic apparatus be cascaded after connect AC network, or the plurality of photovoltaic apparatus connection in series-parallel connects afterwards together
AC network.
Preferably, in addition to：Filter circuit；
The filter circuit, for filtering out the DC PWM ripple of the half-bridge power switch circuit output or exchanging in PWM ripples
Harmonic components.
A kind of photovoltaic system, including described photovoltaic apparatus, in addition to：Photovoltaic module.
Preferably, the photovoltaic apparatus and photovoltaic module integrate.
Compared with prior art, the present invention at least has advantages below：
The switch controlling signal exported using controller can control half-bridge power switch circuit output DC PWM ripple or friendship
Flow PWM ripples.When the switch controlling signal is HVDC Modulation signal, the half-bridge power switch circuit output DC PWM ripple；
When the switch controlling signal is AC modulated signals, the half-bridge power switch circuit output exchanges PWM ripples.So that should
Photovoltaic apparatus can apply to need the occasion of direct current supply, can also be applied to the occasion of Alternating Current Power Supply, so improve
The versatility of the photovoltaic apparatus.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is traditional photovoltaic module schematic diagram；
The photovoltaic system schematic diagram that it is DC load power supply in the prior art that Fig. 2, which is,；
The photovoltaic system schematic diagram that it is AC load power supply in the prior art that Fig. 3, which is,；
Fig. 4 is the schematic diagram of photovoltaic apparatus embodiment one of output AC/DC PWM ripples provided by the invention；
Fig. 5 is the schematic diagram of photovoltaic apparatus embodiment two of output AC/DC PWM ripples provided by the invention；
Fig. 6 a are a kind of photovoltaic apparatus schematic diagram for exporting DC PWM ripple provided by the invention；
Fig. 6 b are another schematic diagram for exporting DC PWM ripple provided by the invention；
Fig. 7 is the schematic diagram of photovoltaic apparatus provided by the invention output exchange PWM ripples；
Fig. 8 a are that photovoltaic apparatus provided by the invention is HVDC communication system electrical schematic；
Fig. 8 b are that the direct current of photovoltaic apparatus provided by the invention output is incorporated to AC network embodiment after inverter
One schematic diagram；
Fig. 8 c are that the direct current of photovoltaic apparatus provided by the invention output is incorporated to AC network embodiment after inverter
Two schematic diagrames；
Fig. 8 d are the schematic diagram that photovoltaic apparatus provided by the invention exports alternating current；
Fig. 9 a are the schematic diagram that photovoltaic apparatus provided by the invention is household electrical appliance power supply；
Fig. 9 b are a kind of grid-connected schematic diagram of the alternating current of photovoltaic apparatus output provided by the invention；
Fig. 9 c are the grid-connected schematic diagram of the alternating current of another photovoltaic apparatus output provided by the invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only this
Invention part of the embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Referring to Fig. 4, the figure is the schematic diagram of photovoltaic apparatus embodiment one of output AC/DC PWM ripples provided by the invention.
The photovoltaic apparatus for the output AC/DC PWM ripples that the present embodiment provides, including：Photovoltaic module 100, DC bus capacitor,
Half-bridge power switch circuit 200 and controller 300；
The DC bus capacitor includes the first electric capacity C1 and the second electric capacity C2；The first end connection institute of the first electric capacity C1
The positive output end of photovoltaic module 100 is stated, the second end of the first electric capacity C1 connects the first end of the second electric capacity C2, described
Second electric capacity C2 the second end connects the negative output terminal of the photovoltaic module 100；
The half-bridge power switch circuit 200 includes controlled tr tube；
The controller 300, the on off state of the controlled tr tube is controlled for output switch control signal, so that institute
State half-bridge power switch circuit 200 and export DC PWM ripple or exchange PWM ripples；When the switch controlling signal is believed for HVDC Modulation
Number when, the half-bridge power switch circuit 200 exports DC PWM ripple；When the switch controlling signal is AC modulated signals,
The output of the half-bridge power switch circuit 200 exchange PWM ripples.
It is understood that the purpose of the present invention is exactly to enable the photovoltaic module to need the occasion of direct current to export in load
Direct current, alternating current can be exported in the occasion that load needs to exchange.When switch controlling signal is HVDC Modulation signal, output
DC PWM ripple, the DC PWM ripple include HVDC Modulation wave component harmony wave component, flip-flop are left with after filtering.
Connected it should be noted that the photovoltaic module 100 described in the embodiment of the present invention can be multiple photovoltaic battery panels
Together, or multiple photovoltaic battery panels are connected in parallel, or multiple battery plate serioparallels are together.For example,
The number of typical photovoltaic battery panel is 60 or 72.
It is understood that photovoltaic module 100 export for direct current, and half-bridge power switch circuit 200 can will be straight
Stream electricity is transformed to PWM ripple signals and exported.
It should be noted that controller 300 in addition to can be with output switch control signal, can also realize other controls
System, for example, monitoring the state of photovoltaic module or photovoltaic battery panel, realizing maximum power point tracking MPPT and realize protection and lead to
The functions such as news.
The way of realization of controller 300 can be MCU or DSP etc..
The switch controlling signal exported using controller can control half-bridge power switch circuit output DC PWM ripple or friendship
Flow PWM ripples.When the switch controlling signal is HVDC Modulation signal, the half-bridge power switch circuit output DC PWM ripple；
When the switch controlling signal is AC modulated signals, the half-bridge power switch circuit output exchanges PWM ripples.So that should
Photovoltaic apparatus can apply to need the occasion of direct current supply, can also be applied to the occasion of Alternating Current Power Supply, so improve
The versatility of the photovoltaic apparatus.
Referring to Fig. 5, the figure is the schematic diagram of photovoltaic apparatus embodiment two of output AC/DC PWM ripples provided by the invention.
Opened it should be noted that half-bridge power switch circuit described in the embodiment of the present invention can be two level half-bridge power
Powered-down road, can also more level half-bridge power switch circuits；Opened below by two level half-bridge power of half-bridge power switch circuit
It is introduced exemplified by powered-down road, as shown in Figure 5.
When the half-bridge power switch circuit is two level half-bridge power switch circuit, the half-bridge power switch circuit
Including first switch pipe S1 and second switch pipe S2；
The first end of the first switch pipe S1 connects the first end of the first electric capacity C1, the first switch pipe S1's
Second end connects the first end of the second switch pipe S2, and the second end of the second switch pipe S2 connects the photovoltaic module
100 negative output terminal.
The situation of output end is introduced first, when 1 and 2 as output end, output exchange PWM；When 2 and 3 as defeated
When going out to hold, DC PWM is exported.
It is described in detail below in conjunction with the accompanying drawings, when wherein the photovoltaic apparatus exports DC PWM, there are two kinds of output sides
Formula, as shown in Figure 6 a, for a kind of photovoltaic apparatus schematic diagram for exporting DC PWM ripple provided by the invention.
The second end (corresponding label 2) of the first switch pipe S1 is the positive output end of the DC PWM ripple, described second
Switching tube S2 the second end (corresponding label 3) is the negative output terminal of the DC PWM ripple.
Illustrate its operation principle by taking Fig. 6 a as an example below.
When S1 is turned on, export as+1 level.When S1 is turned off, export as 0 level.S2 break-make situation apparent load it is big
Small to determine, generally turning on and off for S1 and S2 is complementary, i.e. when S1 is turned on, S2 shut-offs.
By the control algolithm inside controller, the photovoltaic apparatus can be controlled to export DC PWM ripple.The circuit typically quilt
It is considered BUCK circuits, its another way of realization such as Fig. 6 b.
As shown in Figure 6 b, it is another schematic diagram for exporting DC PWM ripple provided by the invention.
The first end (corresponding label 4) of the first switch pipe S1 is the positive output end of the DC PWM ripple, described first
Switching tube S1 the second end (corresponding label 2) is the negative output terminal of the DC PWM ripple.
The situation of photovoltaic apparatus output exchange PWM ripples is described below.
Referring to Fig. 7, the figure is the schematic diagram of photovoltaic apparatus output exchange PWM ripples provided by the invention.
When the half-bridge power switch circuit output exchanges PWM ripples：
Positive output end of the second end (corresponding label 1) of the first electric capacity C1 as the exchange PWM ripples；
Negative output terminal of the first end (corresponding label 2) of the second switch pipe S2 as the exchange PWM ripples.
For example, when S1 is turned on, export as -1/2 level ,+1/2 level of output when S2 is turned on.
It should be noted that introduced above so that half-bridge power switch circuit is two level half-bridge circuits as an example, Ke Yili
Solution, can also be that more level half-bridge circuits are realized, no longer concrete example explanation herein.
Answering when introducing photovoltaic apparatus output DC PWM ripple provided by the invention and output exchange PWM ripples separately below
Use scene.
Application scenarios during photovoltaic apparatus output DC PWM ripple are introduced first.
It is understood that when photovoltaic apparatus exports DC PWM ripple, the load of the photovoltaic apparatus is mechanical, electrical for direct current
Heated filament, incandescent lamp or LED street lamp.The power supply that these loads need is direct current.
Referring to Fig. 8 a, the figure be the photovoltaic apparatus be it is multiple and output DC PWM ripple when, the plurality of photovoltaic apparatus
Powered after being cascaded for HVDC communication system.
Referring to Fig. 8 b, the figure is that the photovoltaic apparatus is multiple, and during output DC PWM ripple, the plurality of photovoltaic is set
It is standby be cascaded after connect inverter DC/AC input, the output end connection AC network of the inverter DC/AC.
Referring to Fig. 8 c, the figure is the input that multiple photovoltaic apparatus connection in series-parallel connect the inverter DC/AC afterwards together,
The output end of the inverter connects the AC network.
It should be noted that Fig. 8 b are exchanging using inverter output with Fig. 8 c, but it is unfavorable that one kind is described below
The implementation of exchange is directly exported with inverter, referring to Fig. 8 d.
Fig. 8 d are the embodiment schematic diagram that photovoltaic apparatus provided by the invention exports more level exchanges.
As shown in figure 8d, the photovoltaic apparatus is multiple the multiple photovoltaic apparatus series connection for exporting different DC PWM ripples
The A phases of alternating current are exported together；Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current
B phases；Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current C phases.
It is understood that the different PWM ripples of half-bridge power switch circuit output can be controlled by controller, will be multiple
Photovoltaic apparatus is cascaded, and then synthesizes exchange electricity output.And A, B and C three-phase alternating current can be exported.
Photovoltaic apparatus provided by the invention is described below and applies scene in Alternating Current Power Supply.
Referring to Fig. 9 a, the figure is the schematic diagram that photovoltaic apparatus provided by the invention is household electrical appliance power supply.
The figure is that the photovoltaic apparatus is multiple, when the half-bridge power switch circuit output exchanges PWM ripples, the plurality of light
Volt equipment is powered after being cascaded for household electrical appliance.
Referring to Fig. 9 b, the figure is a kind of grid-connected schematic diagram of the alternating current of photovoltaic apparatus output provided by the invention.
The photovoltaic apparatus is multiple, when the half-bridge power switch circuit output exchanges PWM ripples, the plurality of photovoltaic apparatus
AC network is connected after being cascaded.
Referring to Fig. 9 c, the figure is the grid-connected schematic diagram of the alternating current of another photovoltaic apparatus output provided by the invention.
The photovoltaic apparatus is multiple, when the half-bridge power switch circuit output exchanges PWM ripples, the plurality of photovoltaic apparatus
Connection in series-parallel connects AC network afterwards together.
In addition, the photovoltaic apparatus that above example of the present invention provides, can also include：Filter circuit；
The filter circuit, for filtering out the DC PWM ripple of the half-bridge power switch circuit output or exchanging in PWM ripples
Harmonic components.
The photovoltaic apparatus for the AC/DC that above example provides, can apply to various occasions, passes through controller control
DC-PWM power switch circuits processed, direct current can be converted to a series of PWM ripples.The photovoltaic apparatus of the AC/DC is defeated
The DC PWM ripple or exchange PWM ripples gone out can generate direct current or simple alternating current etc. respectively after circuit filters out harmonic components after filtering
Kind voltage waveform.
A kind of photovoltaic apparatus provided based on above example, the present invention also provide a kind of photovoltaic system, the photovoltaic system
Including the photovoltaic apparatus described in above example, in addition, also including photovoltaic module.
It is understood that photovoltaic module and photovoltaic apparatus can be to be independently arranged, such as respectively by different factories
Business produces.In addition, photovoltaic module and photovoltaic apparatus can also integrate, produced by same production firm.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention.Though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical scheme makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, the technical spirit according to the present invention is to any simple modification made for any of the above embodiments, equivalent
Change and modification, still fall within technical solution of the present invention protection in the range of.
Claims (11)
- A kind of 1. photovoltaic apparatus, it is characterised in that including：DC bus capacitor, half-bridge power switch circuit and controller；The DC bus capacitor includes the first electric capacity and the second electric capacity；The first end connection photovoltaic module of first electric capacity is just Output end, the second end of first electric capacity connect the first end of second electric capacity, the second end connection of second electric capacity The negative output terminal of the photovoltaic module；The half-bridge power switch circuit includes controlled tr tube；The controller, the on off state of the controlled tr tube is controlled for output switch control signal, so that the half-bridge Power switch circuit exports DC PWM ripple or exchange PWM ripples；It is described when the switch controlling signal is HVDC Modulation signal Half-bridge power switch circuit output DC PWM ripple；When the switch controlling signal is AC modulated signals, the half-bridge power On-off circuit output exchange PWM ripples.
- 2. photovoltaic apparatus according to claim 1, it is characterised in that when the half-bridge power switch circuit is two level half During bridge power switch circuit, the half-bridge power switch circuit includes first switch pipe and second switch pipe；The first end of the first switch pipe connects the first end of first electric capacity, the second end connection of the first switch pipe The first end of the second switch pipe, the second end of the second switch pipe connect the negative output terminal of the photovoltaic module.
- 3. photovoltaic apparatus according to claim 2, it is characterised in that when the half-bridge power switch circuit output direct current During PWM ripples：Second end of the first switch pipe is the positive output end of the DC PWM ripple, and the second end of the second switch pipe is The negative output terminal of the DC PWM ripple；Or,The first end of the first switch pipe is the positive output end of the DC PWM ripple, and the second end of the first switch pipe is The negative output terminal of the DC PWM ripple.
- 4. photovoltaic apparatus according to claim 2, it is characterised in that when the half-bridge power switch circuit output exchanges During PWM ripples：Positive output end of second end of first electric capacity as the exchange PWM ripples；Negative output terminal of the first end of the second switch pipe as the exchange PWM ripples.
- 5. photovoltaic apparatus according to claim 3, it is characterised in that the photovoltaic apparatus is multiple, the plurality of light Volt equipment is powered after being cascaded for HVDC communication system.
- 6. photovoltaic apparatus according to claim 3, it is characterised in that the photovoltaic apparatus is multiple, the plurality of light Volt equipment connects the input of inverter, the output end connection AC network of the inverter after being cascaded；It is or, the plurality of Photovoltaic apparatus connection in series-parallel connects the input of the inverter afterwards together, and the output end of the inverter connects the alternating current Net.
- 7. photovoltaic apparatus according to claim 3, it is characterised in that the photovoltaic apparatus is multiple, exports different direct currents Multiple photovoltaic apparatus of PWM ripples, which are cascaded, exports the A phases of alternating current；Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current B phases；Export different DC PWM ripples multiple photovoltaic apparatus be cascaded output alternating current C phases.
- 8. photovoltaic apparatus according to claim 4, it is characterised in that the photovoltaic apparatus is multiple, and the plurality of photovoltaic is set It is standby be cascaded after powered for household electrical appliance, or, the plurality of photovoltaic apparatus be cascaded after connect AC network, or this is more Individual photovoltaic apparatus connection in series-parallel connects AC network afterwards together.
- 9. according to the photovoltaic apparatus described in claim any one of 1-8, it is characterised in that also include：Filter circuit；The filter circuit, for filtering out the DC PWM ripple of the half-bridge power switch circuit output or exchanging humorous in PWM ripples Wave component.
- A kind of 10. photovoltaic system, it is characterised in that including the photovoltaic apparatus described in claim any one of 1-9, in addition to：Light Lie prostrate component.
- 11. photovoltaic system according to claim 10, it is characterised in that the photovoltaic apparatus and photovoltaic module are integrated in one Rise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522325.5A CN107565676B (en) | 2016-07-01 | 2016-07-01 | Photovoltaic equipment and photovoltaic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522325.5A CN107565676B (en) | 2016-07-01 | 2016-07-01 | Photovoltaic equipment and photovoltaic system |
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| CN107565676B CN107565676B (en) | 2020-01-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282111B1 (en) * | 1999-06-18 | 2001-08-28 | Avionic Instruments Inc | Inverter control using current mode slope modulation |
| CN102158081A (en) * | 2011-04-07 | 2011-08-17 | 天津大学 | Three-level boosting DC converter and modulation method thereof |
-
2016
- 2016-07-01 CN CN201610522325.5A patent/CN107565676B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282111B1 (en) * | 1999-06-18 | 2001-08-28 | Avionic Instruments Inc | Inverter control using current mode slope modulation |
| CN102158081A (en) * | 2011-04-07 | 2011-08-17 | 天津大学 | Three-level boosting DC converter and modulation method thereof |
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| Publication number | Publication date |
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| CN107565676B (en) | 2020-01-21 |
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