CN204794726U - Photovoltaic inverter special power module that supplies power - Google Patents
Photovoltaic inverter special power module that supplies power Download PDFInfo
- Publication number
- CN204794726U CN204794726U CN201520565065.0U CN201520565065U CN204794726U CN 204794726 U CN204794726 U CN 204794726U CN 201520565065 U CN201520565065 U CN 201520565065U CN 204794726 U CN204794726 U CN 204794726U
- Authority
- CN
- China
- Prior art keywords
- diode
- electric capacity
- limiting resistance
- current
- photovoltaic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a photovoltaic inverter special power module that supplies power. This photovoltaic inverter special power module that supplies power passes through photovoltaic inverter storage electric energy itself to hold condition is stable, and instantaneous fall or when directly cutting off the power supply, the control circuit that electric capacity is photovoltaic inverter supplies power, satisfies the requirement that photovoltaic inverter low voltage ride through or 0 voltage passed through as photovoltaic inverter voltage on line side. Simultaneously, electronic component all satisfies high low temperature requirement, can not satisfy the defect that low temperature required so overcome general UPS.
Description
Technical field
The utility model relates to photovoltaic art, particularly relates to a kind of photovoltaic DC-to-AC converter and to power power source special module.
Background technology
Existing ups power is mainly for operating ambient temperature 0 ~ 40 DEG C, and the ups power cost that can meet low temperature requirements is high, and volume is large, especially for the ups power that photovoltaic DC-to-AC converter uses, cannot meet the requirement of low voltage crossing.
Utility model content
The utility model provides a kind of photovoltaic DC-to-AC converter and to power power source special module, it is by the storage of electrical energy of photovoltaic DC-to-AC converter own, and hold mode is stablized, when photovoltaic DC-to-AC converter voltage on line side is instantaneous fall or directly power-off time, electric capacity is that the control loop of photovoltaic DC-to-AC converter is powered, and meets the requirement of low voltage ride through of photovoltaic inverter or 0 voltage ride-through.
For realizing above-mentioned design, the utility model by the following technical solutions:
A kind of photovoltaic DC-to-AC converter is powered power source special module, comprising: cowling panel, DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2 and Switching Power Supply Ua; Described cowling panel is provided with diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry relay K 1 and carry by described plate the grid-connected contactor that relay K 1 controls folding; The primary coil incoming transport power supply of described transformer T1, one end of the secondary coil of described transformer T1 is connected with the negative pole of described diode D2 positive pole, diode D3, and the other end of the secondary coil of described transformer T1 is connected with the negative pole of diode D4 with the positive pole of described diode D1; One end being connected with the negative pole of diode D1 with the negative pole of described diode D2 normal battle of outside relay is accessed in one end of described current-limiting resistance R1, and the other end of described current-limiting resistance R1 is connected with one end of described current-limiting resistance R2; The other end of described current-limiting resistance R2 accesses the other end of the normal battle of described outside relay and is connected with the pin 1 of DC circuit breaker QF1 with one end of described electric capacity C1, one end of electric capacity C2; The positive pole of described diode D3 is connected with the pin 3 of DC circuit breaker QF1 with the positive pole of described diode D4, the other end of electric capacity C1, the other end of electric capacity C2; The pin 2 of described DC circuit breaker QF1 is connected with the HV pin of Switching Power Supply Ua, and the pin 4 of described DC circuit breaker QF1 is connected with the pin C of Switching Power Supply Ua; Described Switching Power Supply Ua is that the control loop of photovoltaic DC-to-AC converter is powered; Described plate carries the grid-connected instruction that relay K 1 receives photovoltaic DC-to-AC converter; Described grid-connected contactor accesses the parallel network circuit of described photovoltaic DC-to-AC converter.
Wherein, the transformer of described transformer T1 to be parameter be 380V/150V, 150VA; Described diode D1, diode D2, diode D3 and diode D4 are the diode that parameter is 25A, 800V; Described current-limiting resistance R1 and current-limiting resistance R2 is the resistance that parameter is 5 Ω, 40W; It is 15000 μ F that described electric capacity C1 and electric capacity C2 is parameter, the electric capacity of 250V.
Wherein, described DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2, Switching Power Supply Ua, diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry the electronic component that relay K 1 and grid-connected contactor are working temperature-25 DEG C ~ 60 DEG C.
The beneficial effects of the utility model are: by the storage of electrical energy of photovoltaic DC-to-AC converter own, and hold mode is stablized, when photovoltaic DC-to-AC converter voltage on line side is instantaneous fall or directly power-off time, electric capacity is that the control loop of photovoltaic DC-to-AC converter is powered, and meets the requirement of low voltage ride through of photovoltaic inverter or 0 voltage ride-through.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is that a kind of photovoltaic DC-to-AC converter provided in the utility model embodiment is powered the circuit theory diagrams of the first embodiment of power source special module.
Embodiment
The technical problem solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, it is that a kind of photovoltaic DC-to-AC converter provided in the utility model embodiment is powered the circuit diagram of the first embodiment of power source special module.As shown in the figure, this photovoltaic DC-to-AC converter is powered power source special module, comprising: cowling panel 1, DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2 and Switching Power Supply Ua; Described cowling panel 1 is provided with diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry relay K 1 and carry by described plate the grid-connected contactor that relay K 1 controls folding; The primary coil incoming transport power supply of described transformer T1, one end of the secondary coil of described transformer T1 is connected with the negative pole of described diode D2 positive pole, diode D3, and the other end of the secondary coil of described transformer T1 is connected with the negative pole of diode D4 with the positive pole of described diode D1; One end being connected with the negative pole of diode D1 with the negative pole of described diode D2 normal battle of outside relay is accessed in one end of described current-limiting resistance R1, and the other end of described current-limiting resistance R1 is connected with one end of described current-limiting resistance R2; The other end of described current-limiting resistance R2 accesses the other end of the normal battle of described outside relay and is connected with the pin 1 of DC circuit breaker QF1 with one end of described electric capacity C1, one end of electric capacity C2; The positive pole of described diode D3 is connected with the pin 3 of DC circuit breaker QF1 with the positive pole of described diode D4, the other end of electric capacity C1, the other end of electric capacity C2; The pin 2 of described DC circuit breaker QF1 is connected with the HV pin of Switching Power Supply Ua, and the pin 4 of described DC circuit breaker QF1 is connected with the pin C of Switching Power Supply Ua; Described Switching Power Supply Ua is that the control loop of photovoltaic DC-to-AC converter is powered; Described plate carries the grid-connected instruction that relay K 1 receives photovoltaic DC-to-AC converter; Described grid-connected contactor accesses the parallel network circuit of described photovoltaic DC-to-AC converter.
Preferably, the transformer of described transformer T1 to be parameter be 380V/150V, 150VA; Described diode D1, diode D2, diode D3 and diode D4 are the diode that parameter is 25A, 800V; Described current-limiting resistance R1 and current-limiting resistance R2 is the resistance that parameter is 5 Ω, 40W; It is 15000 μ F that described electric capacity C1 and electric capacity C2 is parameter, the electric capacity of 250V.
Further, described DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2, Switching Power Supply Ua, diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry the electronic component that relay K 1 and grid-connected contactor are working temperature-25 DEG C ~ 60 DEG C.
As shown in Figure 1, diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry relay K 1 and grid-connected contactor is arranged on cowling panel 1, X1:1, X1:2, X2:1, X2:2, X3:1, X3:2, X3:3, X3:4, X3:5, X3:6 are the binding post that cowling panel 1 is arranged, and facilitate the access of electronic component.The primary coil of transformer T1 is that this photovoltaic DC-to-AC converter is powered the input terminal of power source special module, and the power supply of input is from the control transformer inside photovoltaic DC-to-AC converter, and voltage is 380V.Voltage is become 150V through transformer T1 by 380V voltage, and diode D1, diode D2, diode D3, diode D4 form a single-phase rectification bridge, and rectification goes out the direct current of 200VDC, through two current-limiting resistances to capacitor charging below.X2:1 and X2:2 is the lead-out terminal of 200VDC, is mainly used to the coil power supply of grid-connected contactor.X3:1 and X3:2 access the normal battle of an outside relay (24V), is mainly used for excising current-limiting resistance.During closed DC circuit breaker QF1, Switching Power Supply Ua input voltage 200VDC, Switching Power Supply Ua works, export 24V direct current, the control of photovoltaic DC-to-AC converter is replied electric, the outside relay now controlling excision current-limiting resistance obtains electric, and current-limiting resistance R1 and current-limiting resistance R2 is shorted, now all existing electricity of all control loops of photovoltaic DC-to-AC converter.
When external condition is normal, photovoltaic DC-to-AC converter sends grid-connected instruction, allows plate carry relay K 1 adhesive by terminal X3:4 and terminal X3:5, and plate carries relay K 1 and controls grid-connected contactor and close, the circuit turn-on between terminal 3 and terminal 5, photovoltaic inverter grid-connected success.
When photovoltaic DC-to-AC converter voltage on line side is instantaneous fall or directly power-off time, electric capacity C1 and electric capacity C2 powers to control loop below, according to the capacity of electric capacity C1 and electric capacity C2, after 5s, voltage can fall to 130V, the voltage range of the coil of grid-connected contactor is 110VDC ~ 220VDC, the input voltage range of Switching Power Supply Ua is 130VDC ~ 310VDC, so control loop is below powered and do not have impact within 5s, meets that photovoltaic DC-to-AC converter is low passes through the requirement of passing through with 0.
In addition, the electronic component in this programme all meets high/low temperature requirement, so overcome the defect that general UPS can not meet low temperature requirements.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (3)
1. photovoltaic DC-to-AC converter is powered a power source special module, it is characterized in that, comprising: cowling panel, DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2 and Switching Power Supply Ua; Described cowling panel is provided with diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry relay K 1 and carry by described plate the grid-connected contactor that relay K 1 controls folding; The primary coil incoming transport power supply of described transformer T1, one end of the secondary coil of described transformer T1 is connected with the negative pole of described diode D2 positive pole, diode D3, and the other end of the secondary coil of described transformer T1 is connected with the negative pole of diode D4 with the positive pole of described diode D1; One end being connected with the negative pole of diode D1 with the negative pole of described diode D2 normal battle of outside relay is accessed in one end of described current-limiting resistance R1, and the other end of described current-limiting resistance R1 is connected with one end of described current-limiting resistance R2; The other end of described current-limiting resistance R2 accesses the other end of the normal battle of described outside relay and is connected with the pin 1 of DC circuit breaker QF1 with one end of described electric capacity C1, one end of electric capacity C2; The positive pole of described diode D3 is connected with the pin 3 of DC circuit breaker QF1 with the positive pole of described diode D4, the other end of electric capacity C1, the other end of electric capacity C2; The pin 2 of described DC circuit breaker QF1 is connected with the HV pin of Switching Power Supply Ua, and the pin 4 of described DC circuit breaker QF1 is connected with the pin C of Switching Power Supply Ua; Described Switching Power Supply Ua is that the control loop of photovoltaic DC-to-AC converter is powered; Described plate carries the grid-connected instruction that relay K 1 receives photovoltaic DC-to-AC converter; Described grid-connected contactor accesses the parallel network circuit of described photovoltaic DC-to-AC converter.
2. photovoltaic DC-to-AC converter according to claim 1 is powered power source special module, it is characterized in that, the transformer of described transformer T1 to be parameter be 380V/150V, 150VA; Described diode D1, diode D2, diode D3 and diode D4 are the diode that parameter is 25A, 800V; Described current-limiting resistance R1 and current-limiting resistance R2 is the resistance that parameter is 5 Ω, 40W; It is 15000 μ F that described electric capacity C1 and electric capacity C2 is parameter, the electric capacity of 250V.
3. photovoltaic DC-to-AC converter according to claim 1 is powered power source special module, it is characterized in that, described DC circuit breaker QF1, transformer T1, electric capacity C1, electric capacity C2, Switching Power Supply Ua, diode D1, diode D2, diode D3, diode D4, current-limiting resistance R1, current-limiting resistance R2, plate carry the electronic component that relay K 1 and grid-connected contactor are working temperature-25 DEG C ~ 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565065.0U CN204794726U (en) | 2015-07-30 | 2015-07-30 | Photovoltaic inverter special power module that supplies power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565065.0U CN204794726U (en) | 2015-07-30 | 2015-07-30 | Photovoltaic inverter special power module that supplies power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794726U true CN204794726U (en) | 2015-11-18 |
Family
ID=54534699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520565065.0U Expired - Fee Related CN204794726U (en) | 2015-07-30 | 2015-07-30 | Photovoltaic inverter special power module that supplies power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071668A (en) * | 2015-07-30 | 2015-11-18 | 苏州景新电气有限公司 | Special-purpose power supply module for power supply of photovoltaic inverter |
-
2015
- 2015-07-30 CN CN201520565065.0U patent/CN204794726U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071668A (en) * | 2015-07-30 | 2015-11-18 | 苏州景新电气有限公司 | Special-purpose power supply module for power supply of photovoltaic inverter |
| CN105071668B (en) * | 2015-07-30 | 2019-01-01 | 北京景新电气技术开发有限责任公司 | A kind of photovoltaic DC-to-AC converter power supply power source special module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103123882B (en) | Intelligent controller of bistable permanent-magnet vacuum circuit breaker | |
| CN107612408B (en) | Energy storage converter and energy storage system | |
| CN105490392B (en) | A kind of the black starting-up control system and method for energy-storage system | |
| CN204216780U (en) | A kind of DC bus soft start circuit of uninterrupted power supply | |
| CN204794726U (en) | Photovoltaic inverter special power module that supplies power | |
| CN106877415A (en) | A kind of transmission line online monitoring system power supply | |
| CN205791774U (en) | High efficiency uninterrupted power supply(ups) | |
| CN102709999B (en) | Energy-saving charger | |
| CN203312827U (en) | Photovoltaic power station energy-saving circuit | |
| CN203339947U (en) | Switch circuit and communication power supply | |
| CN104617773A (en) | Positive-negative automatic conversion circuit and power output module | |
| CN201663434U (en) | Electric protection device for DC circuit of inverter | |
| CN204118734U (en) | PV air-conditioner power supply circuits and PV air-conditioner | |
| CN105071668A (en) | Special-purpose power supply module for power supply of photovoltaic inverter | |
| CN203774865U (en) | A dual power switching circuit for fan power supply and a high-voltage inverter | |
| CN202712950U (en) | Energy saving charger | |
| CN205212723U (en) | Photovoltaic inverter | |
| CN204258326U (en) | A kind of photovoltaic generating system | |
| CN204615501U (en) | A kind of flameproof high-voltage vacuum distribution equipment for mining of DC operation | |
| CN201611840U (en) | Switching power supply circuit and television with the same | |
| CN202918043U (en) | UPS working circuit | |
| CN202535168U (en) | Bus capacitor charging circuit of photovoltaic inverter | |
| CN204349442U (en) | High-voltage switch gear control circuit | |
| CN203840223U (en) | Inverter power supply and welding equipment | |
| CN103683978A (en) | Power supply system and method of photovoltaic inverter |
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: 20151118 Termination date: 20170730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |