CN203572890U - Testing device for photovoltaic grid-connected inverter - Google Patents
Testing device for photovoltaic grid-connected inverter Download PDFInfo
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- CN203572890U CN203572890U CN201320429212.2U CN201320429212U CN203572890U CN 203572890 U CN203572890 U CN 203572890U CN 201320429212 U CN201320429212 U CN 201320429212U CN 203572890 U CN203572890 U CN 203572890U
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- inverter
- circuit
- inverter circuit
- rectification
- testing device
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Abstract
The utility model discloses a testing device for a photovoltaic grid-connected inverter, and the testing device comprises a rectifier circuit, a control circuit, and an inverter circuit. The testing device is characterized in that the input end of the rectifier circuit is connected with grid power; the grid power is a three-phase alternating-current power supply; the output end of the rectifier circuit is connected with the inverter circuit; the rectifier rectifies the alternating current inputted by the grid power into a direct current which is supplied to the inverter circuit, so as to enable the inverter circuit to work; the rectifier and the inverter circuit are further grounded together; the control circuit and the inverter circuit are electrically connected through a control port; the inverter circuit comprises a first to-be-tested photovoltaic grid-connected inverter and a second photovoltaic grid-connected inverter; and the testing device can achieve the testing of the characteristics of a photovoltaic array.
Description
Technical field
The utility model relates to electricity field, particularly relates to a kind of photovoltaic combining inverter proving installation.
Background technology
Inverter (inverter) is that direct current energy (battery, accumulator jar) is transformed into alternating current (being generally 220v50HZ sine or square wave).Emergency power pack, is generally reverse into 220V DC battery jar and exchanges.Popular says, inverter is a kind of device that direct current (DC) is converted into alternating current (AC).It is comprised of inverter bridge, steering logic and filtering circuit.Be widely used in air-conditioning, home theater, electric wheel, electric tool, sewing machine, DVD, VCD, computer, TV, washing machine, smoke exhaust ventilator, refrigerator, video recorder, massager, fan, photo etc., solar panel simulator: possess MPPT function, simulate morning, noon, afternoon, evening, rainy weather, the different voltages that solar panel produces under different condition, I-V P-V curve.Electrical network simulator: the situations such as simulating grid, normal and abnormal condition, overvoltage, under-voltage, overfrequency, under-frequency, power-off suddenly, three-phase independence is adjustable, has harmonic wave.Anti-isolated island test load: test island effect, resistive perceptual capacitive independent assortment.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of photovoltaic combining inverter proving installation, can complete characteristic of photovoltaic array test.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide, a kind of photovoltaic combining inverter proving installation, comprise rectification circuit, control circuit and inverter circuit, it is characterized in that: the input end of described rectification circuit is connected with grid power, grid power is three-phase alternating-current supply, the output terminal of rectification circuit is connected with inverter circuit, rectification circuit becomes direct current to supply with inverter circuit the AC rectification of grid power input, make inverter circuit work, rectification circuit and inverter circuit are further connected to a common ground, control circuit and inverter circuit are electrically connected by control port, described inverter circuit comprises the second photovoltaic combining inverter to be measured and the second photovoltaic grid-connected inversion to be measured.
In preferred embodiment of the utility model, described control circuit control the first inverter, the output voltage of the second inverter, output frequency are exported by test request, described inverter circuit comprises the first inverter and the second inverter, and the first inverter and the second inverter are electrically connected.
In preferred embodiment of the utility model, described the first inverter and the second inverter are full bridge inverter.
The beneficial effects of the utility model are: the utility model can complete characteristic of photovoltaic array test.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model photovoltaic combining inverter proving installation;
In accompanying drawing, the mark of each parts is as follows: 1, rectification circuit; 2, control circuit; 3, inverter circuit.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Refer to Fig. 1, the utility model embodiment provides following technical scheme
In one embodiment, , a kind of photovoltaic combining inverter proving installation, it is characterized in that, comprise rectification circuit 1, control circuit 2 and inverter circuit 3, the input end of described rectification circuit 1 is connected with grid power, grid power is three-phase alternating-current supply, the output terminal of rectification circuit 1 is connected with inverter circuit, rectification circuit 1 becomes direct current to supply with inverter circuit 3 AC rectification of grid power input, inverter circuit 3 is worked, rectification circuit 1 is further connected to a common ground with inverter circuit 3, control circuit 2 is electrically connected by control port with inverter circuit 3, described inverter circuit 3 comprises the second photovoltaic combining inverter to be measured and the second photovoltaic combining inverter to be measured.
Preferably, described control circuit control the first inverter, the output voltage of the second inverter, output frequency are exported by test request, and described inverter circuit comprises the first inverter and the second inverter, and the first inverter and the second inverter are electrically connected.
Preferably, described the first inverter and the second inverter are full bridge inverter.
The utility model can complete the effect of characteristic of photovoltaic array test
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a photovoltaic combining inverter proving installation, it is characterized in that, comprise rectification circuit, control circuit and inverter circuit, it is characterized in that: the input end of described rectification circuit is connected with grid power, grid power is three-phase alternating-current supply, the output terminal of rectification circuit is connected with inverter circuit, rectification circuit becomes direct current to supply with inverter circuit the AC rectification of grid power input, make inverter circuit work, rectification circuit and inverter circuit are further connected to a common ground, control circuit and inverter circuit are electrically connected by control port, described inverter circuit comprises the second photovoltaic combining inverter to be measured and the second photovoltaic combining inverter to be measured.
2. photovoltaic combining inverter proving installation according to claim 1, it is characterized in that, described control circuit control the first inverter, the output voltage of the second inverter, output frequency are exported by test request, described inverter circuit comprises the first inverter and the second inverter, and the first inverter and the second inverter are electrically connected.
3. photovoltaic combining inverter proving installation according to claim 1, is characterized in that, described the first inverter and the second inverter are full bridge inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429212.2U CN203572890U (en) | 2013-07-12 | 2013-07-12 | Testing device for photovoltaic grid-connected inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429212.2U CN203572890U (en) | 2013-07-12 | 2013-07-12 | Testing device for photovoltaic grid-connected inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572890U true CN203572890U (en) | 2014-04-30 |
Family
ID=50540617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320429212.2U Expired - Fee Related CN203572890U (en) | 2013-07-12 | 2013-07-12 | Testing device for photovoltaic grid-connected inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203572890U (en) |
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2013
- 2013-07-12 CN CN201320429212.2U patent/CN203572890U/en not_active Expired - Fee Related
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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: 20140430 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |