CN202870278U - Test platform for small photovoltaic grid-connected inverter - Google Patents
Test platform for small photovoltaic grid-connected inverter Download PDFInfo
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- CN202870278U CN202870278U CN 201220613354 CN201220613354U CN202870278U CN 202870278 U CN202870278 U CN 202870278U CN 201220613354 CN201220613354 CN 201220613354 CN 201220613354 U CN201220613354 U CN 201220613354U CN 202870278 U CN202870278 U CN 202870278U
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Abstract
The utility model relates to a test platform for a small photovoltaic grid-connected inverter, wherein an input switch OFF is arranged between a programmable direct-current analogue source and the DC (direct-current) end of the inverter; an input switch OFF is arranged between a photovoltaic cell panel array PV and the DC end of the inverter; an adjustable resistor and an adjustable capacitor are connected to the photovoltaic cell panel array PV and the zero-line N end of the voltage of the small photovoltaic grid-connected inverter in parallel; a switch OFF is arranged at the AC (alternating-current) end of the small photovoltaic grid-connected inverter; an input switch OFF is arranged between the AC end of the inverter and an anti-island detection device; an input switch OFF is arranged between the AC end of the inverter and an AC1 analogue power grid; and an input switch OFF is arranged between the AC end of the inverter and an AC2 power grid. The test platform disclosed by the utility model is suitable for an authentication test on the small photovoltaic grid-connected inverter. The platform is used for acquiring and recording the instantaneous power, the MPPT (maximum power point tracking) power, the output voltage, the output frequency, the accumulative generating capacity, the shell temperature and the like of the grid-connected inverter.
Description
Technical field
The utility model relates to a kind of test platform, relates in particular to a kind of low profile photovoltaic combining inverter test platform, belongs to the utilization of new energy resources field.
Background technology
The today of constantly highlight in energy crisis, environment constantly worsening, people more and more pay attention to the utilization of novel energy, clean energy resource and exploitation.Sun power with its obtain the source extensively, green non-pollution, recyclability, Local Adaptation be strong etc., and characteristics are shown one's talent from numerous novel energies, become in numerous new forms of energy ideal a kind of.
Photovoltaic system is the system that utilizes solar module and other utility appliance that sun power is converted to electric energy and necessarily uses.Recently, various novel photovoltaic systems are by constantly design operation, for optimizing and improve system performance and stability, the slip-stick artist needs additional designs system testing scheme that its performance and actual motion effect are tested in the process of these systems of design, as gathering and record the data such as instantaneous output efficiency, MPPT tracking, real-time solar cell power output plate.Simultaneously, for ensureing that photovoltaic synchronization inverter system moves safely and reliably, a series of safety tests and the protection test of inverter also are required to authentication specifications, such as isolated island test, earth leakage protection test, megger test etc.
The utility model content
Technical matters to be solved: different products is arranged respectively for different photovoltaic application fields, need to carry out various tests in the Product Certification, if different slip-stick artists adopts different data test schemes when design system, this may cause test event chaotic, thereby cause unnecessary design iterations.And in fact there are many general character in the photovoltaic application system, and needed parameter has certain repeatability in the authentication test process, so the utility model provides a kind of general low profile photovoltaic combining inverter test platform with certain extended capability.
Technical scheme: provide a kind of low profile photovoltaic combining inverter test platform for above not enough the utility model, it is characterized in that: comprise photovoltaic cell plate array PV, programmable DC dummy source, low profile photovoltaic combining inverter, adjustable resistance, tunable capacitor, anti-isolated island detecting device, AC1 simulating grid, AC2 electrical network.
Between programmable DC dummy source and inverter DC end, be provided with input switch OFF,
Between photovoltaic cell plate array PV and inverter DC end, be provided with input switch OFF,
Adjustable resistance and tunable capacitor are attempted by the zero line N end of photovoltaic cell plate array PV and low profile photovoltaic combining inverter voltage,
The AC output terminal of low profile photovoltaic combining inverter is provided with switch OFF,
At inverter AC end and prevent being provided with between the isolated island detecting device input switch OFF,
Between inverter AC end and AC1 simulating grid, be provided with input switch OFF,
Between inverter AC end and AC2 electrical network, be provided with input switch OFF.
Beneficial effect: the utility model is built the test platform of inverter performance and safety, is applicable to the authentication test of low profile photovoltaic combining inverter.The instantaneous power of this platform collection and record combining inverter, MPPT power, inverter output voltage, output frequency, the accumulative total of generating electricity, case temperature etc.Simultaneously; this platform can be used for the various safety tests of low profile photovoltaic combining inverter, such as isolated island test, earth-fault protection test, megger test, leakage current protection test, DC component test, the test of under-voltage overvoltage protection, frequency protection test etc.
This platform simulation the electrical specification of solar-energy photo-voltaic cell array and electrical network, can simulate simultaneously and reappear combining inverter various fault characteristics in actual applications, systematization the test of low profile photovoltaic combining inverter.The slip-stick artist does not need design iterations on this platform, just can test the inverter of similar model, similar performance, and its work of analogue simulation and failure process, has simplified the complicacy of authentication test.
Description of drawings
Fig. 1 is the structured flowchart of the utility model platform.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in more detail.
As shown in Figure 1, a kind of low profile photovoltaic combining inverter test platform comprises photovoltaic cell plate array PV, programmable DC dummy source, low profile photovoltaic combining inverter, adjustable resistance, tunable capacitor, anti-isolated island detecting device, AC1 simulating grid, AC2 electrical network.
Between programmable DC dummy source and inverter DC end, be provided with input switch OFF,
Between photovoltaic cell plate array PV and inverter DC end, be provided with input switch OFF,
Adjustable resistance and tunable capacitor are attempted by the zero line N end of photovoltaic cell plate array PV and low profile photovoltaic combining inverter voltage,
The AC output terminal of low profile photovoltaic combining inverter is provided with switch OFF,
At inverter AC end and prevent being provided with between the isolated island detecting device input switch OFF,
Between inverter AC end and AC1 simulating grid, be provided with input switch OFF,
Between inverter AC end and AC2 electrical network, be provided with input switch OFF.
Photovoltaic cell plate array PVBe used for sun power is directly changed into electric energy, for load.
The programmable DC dummy sourceThe data simulation function that possesses solar panel, but the I-V curve under the shielding of match solar panel are followed the tracks of and some dynamic perfromances in order to the MPPT that measures the low profile photovoltaic combining inverter.
The low profile photovoltaic combining inverterDirect current energy with solar cell sends is converted into interchange, for AC load.
Simulating grid(Programmable AC Power Source) is used for the general variation of simulating grid frequency and voltage; can also simulate the voltage dip of civil power, in short-term interruption, frequency drift etc.; be commonly used to do low profile photovoltaic combining inverter performance, protection and reliability test etc., comprise the overvoltage/undervoltage protection test of low profile photovoltaic combining inverter, the excessively tests such as underfrequency protection test, immunity experiment.
Electrical networkBeing the Unified Global of contact generating and electricity consumption, is the transmission of electricity object of electricity generation system.
Anti-isolated island detecting deviceMain nucleus equipment is accurate RLC load, can accurately simulate resonance and occur, and can effectively detect the anti-island protect function of low profile photovoltaic combining inverter.
Adjustable resistance and tunable capacitorSimulate suitable leakage current and test instantaneous leakage current and the average drain currents protection of low profile photovoltaic combining inverter.
Whole platform relates to the various functions that the low profile photovoltaic combining inverter is detected, and corollary apparatus and instrument all are test specialized equipments, and the inheritance versatility is high.Platform build the test function of having optimized the low profile photovoltaic combining inverter, reduced the design iterations workload.
The above is preferred embodiment of the present utility model only, is not restricted to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (1)
1. a low profile photovoltaic combining inverter test platform is characterized in that: comprise photovoltaic cell plate array PV, programmable DC dummy source, low profile photovoltaic combining inverter, adjustable resistance, tunable capacitor, anti-isolated island detecting device, AC1 simulating grid, AC2 electrical network;
Between programmable DC dummy source and inverter DC end, be provided with input switch OFF,
Between photovoltaic cell plate array PV and inverter DC end, be provided with input switch OFF,
Adjustable resistance and tunable capacitor are attempted by the zero line N end of photovoltaic cell plate array PV and low profile photovoltaic combining inverter voltage,
The AC output terminal of low profile photovoltaic combining inverter is provided with switch OFF,
At inverter AC end and prevent being provided with between the isolated island detecting device input switch OFF,
Between inverter AC end and AC1 simulating grid, be provided with input switch OFF,
Between inverter AC end and AC2 electrical network, be provided with input switch OFF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613354 CN202870278U (en) | 2012-11-20 | 2012-11-20 | Test platform for small photovoltaic grid-connected inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613354 CN202870278U (en) | 2012-11-20 | 2012-11-20 | Test platform for small photovoltaic grid-connected inverter |
Publications (1)
| Publication Number | Publication Date |
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| CN202870278U true CN202870278U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220613354 Expired - Fee Related CN202870278U (en) | 2012-11-20 | 2012-11-20 | Test platform for small photovoltaic grid-connected inverter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427687A (en) * | 2013-08-21 | 2013-12-04 | 西安龙腾新能源科技发展有限公司 | Method for tracking maximum power point of photovoltaic inverter when constant-voltage source inputs voltages |
| CN103605014A (en) * | 2013-10-23 | 2014-02-26 | 国家电网公司 | Test platform for large energy storage converters |
| CN103616574A (en) * | 2013-08-05 | 2014-03-05 | 广西电网公司电力科学研究院 | Island-preventing detection system and island-preventing detection method for electromobile energy storage grid-connected inverter |
| CN110927500A (en) * | 2019-12-11 | 2020-03-27 | 许昌开普检测研究院股份有限公司 | Multi-power supply switching converter test system |
-
2012
- 2012-11-20 CN CN 201220613354 patent/CN202870278U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616574A (en) * | 2013-08-05 | 2014-03-05 | 广西电网公司电力科学研究院 | Island-preventing detection system and island-preventing detection method for electromobile energy storage grid-connected inverter |
| CN103616574B (en) * | 2013-08-05 | 2016-06-29 | 广西电网公司电力科学研究院 | A kind of electric automobile anti-alone island detection system of energy storage combining inverter and detection method |
| CN103427687A (en) * | 2013-08-21 | 2013-12-04 | 西安龙腾新能源科技发展有限公司 | Method for tracking maximum power point of photovoltaic inverter when constant-voltage source inputs voltages |
| CN103427687B (en) * | 2013-08-21 | 2015-08-19 | 西安龙腾新能源科技发展有限公司 | The maximum power tracking method of photovoltaic DC-to-AC converter when constant pressure source inputs |
| CN103605014A (en) * | 2013-10-23 | 2014-02-26 | 国家电网公司 | Test platform for large energy storage converters |
| CN103605014B (en) * | 2013-10-23 | 2016-08-31 | 国家电网公司 | A kind of test platform for large-scale energy accumulation current converter |
| CN110927500A (en) * | 2019-12-11 | 2020-03-27 | 许昌开普检测研究院股份有限公司 | Multi-power supply switching converter test system |
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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: 20130410 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |