CN204858584U - But auxiliary power circuit remote control goes up photovoltaic inverter of electricity - Google Patents
But auxiliary power circuit remote control goes up photovoltaic inverter of electricity Download PDFInfo
- Publication number
- CN204858584U CN204858584U CN201520416212.8U CN201520416212U CN204858584U CN 204858584 U CN204858584 U CN 204858584U CN 201520416212 U CN201520416212 U CN 201520416212U CN 204858584 U CN204858584 U CN 204858584U
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- China
- Prior art keywords
- auxiliary power
- power circuit
- controlled switch
- circuit
- photovoltaic
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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
Abstract
The utility model provides a but auxiliary power circuit remote control goes up photovoltaic inverter of electricity belongs to photovoltaic grid -connected inverter technical field. It gets electric control circuit, controlled switch, auxiliary power circuit and other auxiliary assembly including exchanging, exchange get electric control circuit can be long -range under electric control signal's the control closed controlled switch, the electrician does the back and issues the order through host computer data communication on auxiliary power circuit, the main control board can be controlled to exchange and get electric control circuit and accomplish the controlled switch K1 locking and break with dividing. The utility model discloses under overcast and rainy or night operating mode, when there is long -range maintenance in the dc -to -ac converter and needs, but the auxiliary power circuit of the corresponding dc -to -ac converter of remote control goes up the electricity, but maintain the operation accomplish after the remote control excision. The utility model provides a photovoltaic inverter under overcast and rainy or night operating mode, auxiliary power circuit lasts the contradiction between consumption of electric energy and the long -range maintenance demand, has improved photovoltaic inverter's maintainability.
Description
Technical field
The utility model relates to photovoltaic combining inverter technical field, particularly the remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit.
Background technology
Photovoltaic DC-to-AC converter, as one of the critical component of photovoltaic generating system, all has auxiliary power circuit for powering to internal control circuit and auxiliary equipment.Auxiliary power circuit has AC (electrical network) and DC side (photovoltaic pond plate) two kinds of ways to take power; because under inverter shutdown or standby operating conditions, auxiliary power circuit does not consume electrical network electric energy, DC side way to take power is more and more applied.But in operating mode at overcast and rainy or night, when photovoltaic pond plate voltage reduces to a certain extent, the auxiliary power circuit of DC side way to take power will quit work, in this case long-range attended operation cannot be carried out for inverter, as program upgrade, failure logging reading etc.
In order to remote maintenance can be carried out in operating mode at overcast and rainy or night to inverter; the mode of alternating current-direct current side power taking simultaneously can be taked; overcast and rainy or night adopts AC power taking to ensure that auxiliary power circuit continues to power under operating mode; meet the needs of remote maintenance, under can reducing inverter shutdown or standby operating conditions, auxiliary power circuit is to the loss of electrical network electric energy simultaneously.But under overcast and rainy or night operating mode, when not having remote maintenance demand, still there is the continuous drain problem of auxiliary power circuit in this scheme.
Utility model content
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, and provides a kind of under overcast and rainy or night operating mode, the remote controlled photovoltaic DC-to-AC converter powered on of auxiliary power circuit.
The utility model solves the technical scheme that its technical problem adopts:
The remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit, comprise photovoltaic pond plate input, grid-connected output, inverter main circuit, master control borad, auxiliary power circuit and other auxiliary equipment, it is characterized in that: it also comprises interchange power taking control circuit and controlled switch K1, described controlled switch K1 is between grid-connected output and auxiliary power circuit input, exchange the order that power taking control circuit accepts master control borad and long-range upper electric control signal, control controlled switch K1 action.
Further, the input of described auxiliary power circuit connects the plate input power taking of photovoltaic pond, and grid-connected output is also connected to auxiliary power circuit input through controlled switch K1 simultaneously.
Further, described interchange power taking control circuit can on long-range electric control signal control under closed controlled switch K1, by host computer data communication transmitting order to lower levels after auxiliary power circuit works on power, master control borad can control to exchange power taking control circuit and complete controlled switch K1 locking and disjunction.
Further, on long-range under controlled switch K1 lock-out state, electric control signal can be removed, and auxiliary power circuit still keeps powering on, and divides at controlled switch K1 auxiliary power circuit dead electricity of having no progeny, and no longer consumes electric energy from electrical network.
The utility model compared to the prior art, have the following advantages and effect: in operating mode at overcast and rainy or night, the auxiliary power circuit of photovoltaic DC-to-AC converter quits work because the photovoltaic pond plate voltage of input is lower, not loss electrical network electric energy, and there is remote maintenance when needing in certain or multiple stage inverter under this operating mode, can the auxiliary power circuit of the corresponding inverter of Long-distance Control from AC power taking, simultaneously can Long-distance Control excision after upkeep operation completes.The utility model solves photovoltaic DC-to-AC converter under overcast and rainy or night operating mode, auxiliary power circuit continues to consume the contradiction between electric energy and remote maintenance demand, only make corresponding auxiliary power circuit power on when there is remote maintenance and needing, the overall energy consumption basis reducing photovoltaic DC-to-AC converter meets the demand of remote maintenance, circuit is simple simultaneously, without the need to increasing too much device, improve the maintainability of photovoltaic DC-to-AC converter.
Accompanying drawing explanation
Fig. 1 is the remote controlled photovoltaic DC-to-AC converter circuit diagram powered on of a kind of auxiliary power circuit of the utility model.
In figure: 1. inverter main circuit, 2. exchange power taking control circuit, 3. master control borad, 4. auxiliary power circuit, 5. other auxiliary equipment.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
As shown in Figure 1, the remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit comprises photovoltaic pond plate input, grid-connected output, inverter main circuit 1, master control borad 3, exchange power taking control circuit 2, controlled switch K1, auxiliary power circuit 4 and other auxiliary equipment 5, the input of described auxiliary power circuit connects the plate input power taking of photovoltaic pond, grid-connected output is also connected to auxiliary power circuit 4 input through controlled switch K1 simultaneously, exchange power taking control circuit 2 can on long-range electric control signal 6 control under closed controlled switch K1, by host computer 7 data communication transmitting order to lower levels after auxiliary power circuit 4 works on power, master control borad 3 can control to exchange power taking control circuit 2 and complete controlled switch K1 locking and disjunction, on long-range under controlled switch K1 lock-out state, electric control signal can be removed, auxiliary power circuit 4 still keeps powering on, auxiliary power circuit 4 dead electricity of having no progeny is divided at controlled switch K1, no longer consume electric energy from electrical network.
Above content described in this specification is only to the explanation of the utility model example.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of the utility model specification or surmount this scope as defined in the claims, protection range of the present utility model all should be belonged to.
Claims (4)
1. the remote controlled photovoltaic DC-to-AC converter powered on of auxiliary power circuit, comprise photovoltaic pond plate input, grid-connected output, inverter main circuit, master control borad, auxiliary power circuit and other auxiliary equipment, it is characterized in that: it also comprises interchange power taking control circuit and controlled switch K1, described controlled switch K1 is between grid-connected output and auxiliary power circuit input, exchange the order that power taking control circuit accepts master control borad and long-range upper electric control signal, control controlled switch K1 action.
2. the remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit according to claim 1, it is characterized in that: the input of described auxiliary power circuit connects the plate input power taking of photovoltaic pond, and grid-connected output is also connected to auxiliary power circuit input through controlled switch K1 simultaneously.
3. the remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit according to claim 1, it is characterized in that: described interchange power taking control circuit can on long-range electric control signal control under closed controlled switch K1, by host computer data communication transmitting order to lower levels after auxiliary power circuit works on power, master control borad can control to exchange power taking control circuit and complete controlled switch K1 locking and disjunction.
4. the remote controlled photovoltaic DC-to-AC converter powered on of a kind of auxiliary power circuit according to claim 1, it is characterized in that: on long-range under controlled switch K1 lock-out state, electric control signal can be removed, auxiliary power circuit still keeps powering on, divide at controlled switch K1 auxiliary power circuit dead electricity of having no progeny, no longer consume electric energy from electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416212.8U CN204858584U (en) | 2015-06-16 | 2015-06-16 | But auxiliary power circuit remote control goes up photovoltaic inverter of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416212.8U CN204858584U (en) | 2015-06-16 | 2015-06-16 | But auxiliary power circuit remote control goes up photovoltaic inverter of electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204858584U true CN204858584U (en) | 2015-12-09 |
Family
ID=54749103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416212.8U Expired - Fee Related CN204858584U (en) | 2015-06-16 | 2015-06-16 | But auxiliary power circuit remote control goes up photovoltaic inverter of electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204858584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602598A (en) * | 2016-12-16 | 2017-04-26 | 厦门科华恒盛股份有限公司 | Intelligent power supply system for auxiliary power source of power grid-connection equipment |
| WO2018072406A1 (en) * | 2016-10-21 | 2018-04-26 | 珠海格力电器股份有限公司 | Photovoltaic system and control method therefor |
-
2015
- 2015-06-16 CN CN201520416212.8U patent/CN204858584U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072406A1 (en) * | 2016-10-21 | 2018-04-26 | 珠海格力电器股份有限公司 | Photovoltaic system and control method therefor |
| CN106602598A (en) * | 2016-12-16 | 2017-04-26 | 厦门科华恒盛股份有限公司 | Intelligent power supply system for auxiliary power source of power grid-connection equipment |
| CN106602598B (en) * | 2016-12-16 | 2019-07-16 | 科华恒盛股份有限公司 | A kind of intelligent power supply system of the accessory power supply of grid-connection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20210616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |