CN203554385U - Auxiliary apparatus for thermal cycle test of photovoltaic assembly and system for thermal cycle test of photovoltaic assembly - Google Patents
Auxiliary apparatus for thermal cycle test of photovoltaic assembly and system for thermal cycle test of photovoltaic assembly Download PDFInfo
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- CN203554385U CN203554385U CN201320703897.5U CN201320703897U CN203554385U CN 203554385 U CN203554385 U CN 203554385U CN 201320703897 U CN201320703897 U CN 201320703897U CN 203554385 U CN203554385 U CN 203554385U
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- photovoltaic module
- thermal cycle
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- 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
Abstract
The utility model provides an auxiliary apparatus for a thermal cycle test of a photovoltaic assembly and a system for the thermal cycle test of the photovoltaic assembly. The auxiliary apparatus for the thermal cycle test of the photovoltaic assembly comprises a test power supply, a switch element, a temperature collection element, a controller and a signal collector recorder, wherein the switch element, a power supply to be tested and a photovoltaic assembly to be tested are serially arranged in a test loop, the temperature collection element is arranged at the photovoltaic assembly to be tested and used for collecting the actual temperature of the photovoltaic assembly to be tested, the controller is connected with the temperature collection element and the switch element and used for comparing the actual temperature and a set temperature and controlling the working state of the switch element, and the signal collector recorder is serially connected in the test loop and used for recording a current value in the test loop. As the test loop is not provided with other electric equipment, impedance interference and energy loss are reduced, and thus test accuracy and usage reliability of the auxiliary apparatus for the thermal cycle test of the photovoltaic assembly are ensured. In addition, the auxiliary apparatus for the thermal cycle test of the photovoltaic assembly is characterized by being simple in structure.
Description
Technical field
The utility model relates to photovoltaic module detection technique field, more specifically, relates to a kind of photovoltaic module thermal cycle testing auxiliary device and photovoltaic module thermal cycle test macro.
Background technology
Photovoltaic generation is a kind of generation mode that solar energy is converted into electric energy, because it has energy-conserving and environment-protective, the feature such as pollution-free, thereby is widely used in the various aspects of people's productive life.Photovoltaic module is one of important component part realizing photovoltaic generation, and because photovoltaic module needs to use for a long time out of doors, thereby photovoltaic module can be subject to the impact of outdoor weather environment.In order to guarantee the stability in use of photovoltaic module, thereby need to carry out to photovoltaic module the test (namely thermal cycle test) of electrical property and hot property, to guarantee that photovoltaic module can have stable power generation performance under Different climate condition.
Photovoltaic module thermal cycle testing auxiliary device of the prior art comprises constant-current temperature-control power supply, two cement resistors and recorder, the both positive and negative polarity of constant-current temperature-control power supply is connected with the both positive and negative polarity of tested photovoltaic module respectively, two cement resistors of connecting between constant-current temperature-control power supply and tested photovoltaic module, the two ends of each cement resistor are all connected with recorder.Constant-current temperature-control power supply can be carried in constant-current voltage-stabilizing the two ends of tested photovoltaic module more than 25 ℃, simultaneously, recorder is by gathering the voltage at cement resistor two ends to test and to record the current value in loop, thereby makes staff judge that whether photovoltaic module operating state is normal according to this current value.
Because series connection in photovoltaic module thermal cycle testing auxiliary device is provided with cement resistor, thereby cement resistor generates heat because having impedance during loop works, thereby cause its electrical property to change, affect its useful life, even burn out with temperature, and then the experimental data and the experimental result distortion that cause test to obtain, make photovoltaic module thermal cycle testing auxiliary device have the problem that accuracy of detection is low.
Relational language is explained:
Photovoltaic module: the module that light energy conversion is become to electric energy.
Thermal cycle test: in airtight chamber, make temperature circulation between negative 40 degrees Celsius to 85 degrees Celsius of photovoltaic module, between the highest and minimum temperature, the speed of variations in temperature is no more than 100 degrees Celsius per hour.Under each extreme temperature, should guarantee that this temperature stabilization keeps at least 10 minutes.
Utility model content
The utility model aims to provide a kind of photovoltaic module thermal cycle testing auxiliary device and photovoltaic module thermal cycle test macro, to solve photovoltaic module thermal cycle testing auxiliary device in prior art, has the problem that accuracy of detection is low.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of photovoltaic module thermal cycle testing auxiliary device, comprising: testing power supply; Switch element, connects and is arranged in test loop with testing power supply and tested photovoltaic module; Temperature acquisition element, is arranged on tested photovoltaic module place, for gathering the actual temperature of tested photovoltaic module; Controller, is connected with temperature acquisition element and switch element, for actual temperature and design temperature are compared to the also operating state of control switch element; Signals collecting recorder, series connection is arranged in test loop, for recording the current value of test loop.
Further, signals collecting recorder is connected with temperature acquisition element, for recording the actual temperature of tested photovoltaic module.
Further, temperature acquisition element is two, the first end of two temperature acquisition elements is all connected with tested photovoltaic module, the second end of a temperature acquisition element in two temperature acquisition elements is connected with controller, and the second end of another temperature acquisition element in two temperature acquisition elements is connected with signals collecting recorder.
Further, temperature acquisition element is thermocouple.
Further, switch element is electromagnetic relay.
Further, testing power supply is DC power supply.
Further, controller is temperature controller.
Further, photovoltaic module thermal cycle testing auxiliary device also comprises power supply, and power supply is connected with testing power supply and/or controller.
Further, photovoltaic module thermal cycle testing auxiliary device also comprises counting element, and counting element is connected with controller, for recording the closed number of times of switch element and making controller control switch element often open when closed number of times reaches preset value.
According to another aspect of the present utility model, a kind of photovoltaic module thermal cycle test macro is provided, comprise environmental test chamber, tested photovoltaic module and photovoltaic module thermal cycle testing auxiliary device, tested photovoltaic module is arranged on the inside of environmental test chamber, and photovoltaic module thermal cycle testing auxiliary device is above-mentioned photovoltaic module thermal cycle testing auxiliary device.
Switch element, testing power supply, tested photovoltaic module and the series connection of signals collecting recorder in the utility model are arranged in test loop, temperature acquisition element is arranged on tested photovoltaic module place, for gathering the actual temperature of tested photovoltaic module, controller is connected with temperature acquisition element and switch element, for actual temperature and design temperature are compared to the also operating state of control switch element, signals collecting recorder is for recording the current value of test loop.While using the photovoltaic module thermal cycle testing auxiliary device in the utility model, temperature acquisition element gathers the actual temperature of tested photovoltaic module, and this actual temperature is sent to controller, controller compares this actual temperature and design temperature, thereby control switch element disconnects or be closed.When switch element is closed, test loop is communicated with, testing power supply is given tested photovoltaic module power supply, and by the current value in signals collecting recorder collecting test loop, thereby make staff judge that whether the operating state of tested photovoltaic module is normal according to this current value.Due to other power consumption equipments not being set in test loop, thereby reduce impedance disturbances and energy loss, thereby guaranteed test accuracy and the dependability of photovoltaic module thermal cycle testing auxiliary device.Meanwhile, the photovoltaic module thermal cycle testing auxiliary device in the utility model has feature simple in structure, low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the annexation schematic diagram of each parts in the photovoltaic module thermal cycle servicing unit in the utility model.
Reference numeral in figure: 10, testing power supply; 20, switch element; 30, tested photovoltaic module; 40, temperature acquisition element; 50, controller; 60, signals collecting recorder; 70, power supply.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of photovoltaic module thermal cycle testing auxiliary device.As shown in Figure 1, photovoltaic module thermal cycle testing auxiliary device comprises testing power supply 10, switch element 20, temperature acquisition element 40, controller 50 and signals collecting recorder 60.Wherein, switch element 20, testing power supply 10, tested photovoltaic module 30 and 60 series connection of signals collecting recorder arrange in test loop; Temperature acquisition element 40 is arranged on tested photovoltaic module 30 places, for gathering the actual temperature of tested photovoltaic module 30; Controller 50 is connected with temperature acquisition element 40 and switch element 20, for actual temperature and design temperature are compared to the also operating state of control switch element 20; Signals collecting recorder 60 is for recording the current value of test loop.
While using the photovoltaic module thermal cycle testing auxiliary device in the utility model, temperature acquisition element 40 gathers the actual temperature of tested photovoltaic module 30, and this actual temperature is sent to controller 50, controller 50 compares this actual temperature and design temperature, thereby control switch element 20 disconnects or closure.When switch element 20 is closed, test loop conducting, testing power supply 10 powers to tested photovoltaic module 30, and by the current value in signals collecting recorder 60 collecting test loops, thereby make staff judge that whether the operating state of tested photovoltaic module 30 is normal according to this current value.Due to other power consumption equipments not being set in test loop, thereby reduce impedance disturbances and energy loss, thereby guaranteed test accuracy and the dependability of photovoltaic module thermal cycle testing auxiliary device.Meanwhile, the photovoltaic module thermal cycle testing auxiliary device in the utility model has feature simple in structure, low cost of manufacture.
In embodiment as shown in Figure 1, signals collecting recorder 60 is connected with temperature acquisition element 40, for recording the actual temperature of tested photovoltaic module 30.Because signals collecting recorder 60 can record the actual temperature of tested photovoltaic module 30, thereby the temperature performance parameter of being convenient to staff and inquiring about tested photovoltaic module 30, thereby staff can more fully be monitored tested photovoltaic module 30, and then improved the dependability of photovoltaic module thermal cycle testing auxiliary device.
In embodiment as shown in Figure 1, temperature acquisition element 40 is two, the first end of two temperature acquisition elements 40 is all connected with tested photovoltaic module 30, the second end of a temperature acquisition element 40 in two temperature acquisition elements 40 is connected with controller 50, and the second end of another temperature acquisition element 40 in two temperature acquisition elements 40 is connected with signals collecting recorder 60.Owing to being provided with two temperature acquisition elements 40, thereby a temperature acquisition element 40 is mainly used in the actual temperature collecting to send to controller 50, another temperature acquisition element 40 to be mainly used in the actual temperature transmitted signal acquisition and recording instrument 60 collecting, temperature acquisition element 40 can be connected with two parts better like this, avoid the interference between signal, thereby guaranteed dependability and the measuring stability of photovoltaic module thermal cycle testing auxiliary device.
Photovoltaic module thermal cycle testing auxiliary device in the utility model also comprises power supply 70, and power supply 70 is connected with testing power supply 10 and/or controller 50.Preferably, power supply 70 is AC power.Further, power supply 70 is the AC power of 220 volts.Owing to being provided with power supply 70, thereby guarantee the electricity consumption reliability of controller 50 and/or testing power supply 10, thereby guaranteed the dependability of photovoltaic module thermal cycle testing auxiliary device.In embodiment as shown in Figure 1, the input of the input of controller 50 and testing power supply 10 is connected with the output of power supply 70 respectively.
Testing power supply 10 in the utility model is DC power supply.Because testing power supply 10 is DC power supply, thereby the stability that has guaranteed to test electric current in test loop, whether thereby be convenient to staff, to detect the operating state of tested photovoltaic module 30 normal, and then improved job stability and the dependability of photovoltaic module thermal cycle testing auxiliary device.Preferably, the current value size of testing power supply 10 is adjustable.Staff can, according to test case, regulate the size of the current output value of testing power supply 10, thereby meets the test request of different tested photovoltaic modulies 30.
Controller 50 in the utility model is temperature controller.Staff can manually rewrite the parameter of temperature controller, routine set temperature value described above.In embodiment as shown in Figure 1, the output of temperature controller (controller 50) is connected with the input of electromagnetic relay (switch element 20), when temperature controller sends working signal, electromagnetic relay closure, makes testing power supply 10 power to tested photovoltaic module 30; When temperature controller does not send working signal, electromagnetic relay disconnects, and tested photovoltaic module 30 cannot obtain the electric current that testing power supply 10 provides.
Photovoltaic module thermal cycle testing auxiliary device in the utility model also comprises counting element, counting element is connected with controller 50, for recording the closed number of times of switch element 20 and making controller 50 control switch elements 20 often open when closed number of times reaches preset value.Because can making controller 50 control switch elements 20 when closed number of times reaches preset value, often opens counting element, thereby when test loop arrives preset times, switch element 20 remains open state under the effect of controller 50, so that tested photovoltaic module 30 cannot obtain the electric current that testing power supply 10 provides, thereby complete test.Preferably, counting element is counter.Certainly, counting element can also be built-in counting chip in controller 50 etc.
As second aspect of the present utility model, provide a kind of photovoltaic module thermal cycle test macro.Photovoltaic module thermal cycle test macro comprises environmental test chamber, tested photovoltaic module 30 and above-mentioned photovoltaic module thermal cycle testing auxiliary device, and tested photovoltaic module 30 is arranged on the inside of environmental test chamber.Preferably, photovoltaic module thermal cycle testing auxiliary device is arranged on the outside of environmental test chamber.Owing to adopting the photovoltaic module thermal cycle test macro in the utility model to test, thereby guaranteed measuring accuracy, reduced measure error, thus improved photovoltaic module end product quality, reduced and produced waste, improved the economic benefit of enterprise.
When the photovoltaic module thermal cycle test macro using in the utility model, should according to IEC61215 standard, (be the standard of design evaluation and sizing ground Crystalline Silicon PV Module, this standard has comprised the multiple environmental simulation tests such as temperature, humidity, illumination, extraneous mechanical force, shock, and wherein 10.11 experiments are thermal cycling test) 10.11 thermal cycling tests require test.Content measurement is as follows:
Tested photovoltaic module 30 should the airtight chamber in environmental test chamber in;
2. environmental test the temperature inside the box regulates, so that the circulation between negative 40 degrees Celsius to 85 degrees Celsius of the temperature of tested photovoltaic module 30, between the highest and minimum temperature, the speed of variations in temperature is no more than 100 degrees Celsius per hour.Under each extreme temperature, should guarantee that this temperature stabilization keeps at least 10 minutes;
3. require tested photovoltaic module 30 should do 200 thermal cycles test;
4. when test, should apply the electric current that equals maximum power point electric current ± 2% under standard test condition at the two poles of the earth of tested photovoltaic module 30;
5. only when exceeding 25 ℃, the temperature of tested photovoltaic module 30 keeps the input of this electric current, when the temperature of tested photovoltaic module 30 stops providing electric current during lower than 25 ℃.
Photovoltaic module thermal cycle test period in the utility model is approximately 1000 hours, and is uninterrupted test in 24 hours.Photovoltaic module thermal cycle test macro in the utility model has automatic collection, automatically controls, without the feature of frock personnel manual switchover state, thereby the automaticity that has guaranteed photovoltaic module thermal cycle test macro, has alleviated staff's labour intensity.
Relational language is explained:
Environmental test chamber: the airtight casing that above-mentioned photovoltaic module thermal cycle test is provided.
Thermocouple: temperature signal is converted to thermo-electromotive force signal, convert the device of measured medium temperature by electric meter (secondary meter) to.
Temperature controller: according to the variations in temperature of testee, in the inner generation of switch physical deformation, thereby produce some special effects, produce conducting or disconnect the Automatic Control Component moving.
Electromagnetic relay: the adhesive by solenoid to armature, release, thus reach the components and parts that make circuit turn-on, cut off object.
DC power supply: the electric supply installation that constant current can be provided.
Signals collecting recorder 60: can gather and the signal such as record current, voltage, temperature, and there is the instrument of the memory function of recording.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, 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., within all should being included in protection range of the present utility model.
Claims (10)
1. a photovoltaic module thermal cycle testing auxiliary device, is characterized in that, comprising:
Testing power supply (10);
Switch element (20), connects and is arranged in test loop with described testing power supply (10) and tested photovoltaic module (30);
Temperature acquisition element (40), is arranged on described tested photovoltaic module (30) and locates, for gathering the actual temperature of described tested photovoltaic module (30);
Controller (50), is connected with described temperature acquisition element (40) and described switch element (20), for described actual temperature and design temperature being compared and controlled the operating state of described switch element (20);
Signals collecting recorder (60), series connection is arranged in described test loop, for recording the current value of described test loop.
2. photovoltaic module thermal cycle testing auxiliary device according to claim 1, it is characterized in that, described signals collecting recorder (60) is connected with described temperature acquisition element (40), for recording the described actual temperature of described tested photovoltaic module (30).
3. photovoltaic module thermal cycle testing auxiliary device according to claim 2, it is characterized in that, described temperature acquisition element (40) is two, the first end of two described temperature acquisition elements (40) is all connected with described tested photovoltaic module (30), the second end of the described temperature acquisition element (40) in two described temperature acquisition elements (40) is connected with described controller (50), and the second end of temperature acquisition element (40) is connected with described signals collecting recorder (60) described in another in two described temperature acquisition elements (40).
4. according to the photovoltaic module thermal cycle testing auxiliary device described in any one in claims 1 to 3, it is characterized in that, described temperature acquisition element (40) is thermocouple.
5. photovoltaic module thermal cycle testing auxiliary device according to claim 1, is characterized in that, described switch element (20) is electromagnetic relay.
6. photovoltaic module thermal cycle testing auxiliary device according to claim 1, is characterized in that, described testing power supply (10) is DC power supply.
7. photovoltaic module thermal cycle testing auxiliary device according to claim 1, is characterized in that, described controller (50) is temperature controller.
8. photovoltaic module thermal cycle testing auxiliary device according to claim 1, it is characterized in that, described photovoltaic module thermal cycle testing auxiliary device also comprises power supply (70), and described power supply (70) is connected with described testing power supply (10) and/or described controller (50).
9. photovoltaic module thermal cycle testing auxiliary device according to claim 1, it is characterized in that, described photovoltaic module thermal cycle testing auxiliary device also comprises counting element, described counting element is connected with described controller (50), for recording the closed number of times of described switch element (20) and making described controller (50) control described switch element (20) when described closed number of times reaches preset value, often opens.
10. a photovoltaic module thermal cycle test macro, comprise environmental test chamber, tested photovoltaic module (30) and photovoltaic module thermal cycle testing auxiliary device, described tested photovoltaic module (30) is arranged on the inside of described environmental test chamber, it is characterized in that, described photovoltaic module thermal cycle testing auxiliary device is the photovoltaic module thermal cycle testing auxiliary device described in any one in claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703897.5U CN203554385U (en) | 2013-11-07 | 2013-11-07 | Auxiliary apparatus for thermal cycle test of photovoltaic assembly and system for thermal cycle test of photovoltaic assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320703897.5U CN203554385U (en) | 2013-11-07 | 2013-11-07 | Auxiliary apparatus for thermal cycle test of photovoltaic assembly and system for thermal cycle test of photovoltaic assembly |
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| CN203554385U true CN203554385U (en) | 2014-04-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868844A (en) * | 2015-05-22 | 2015-08-26 | 徐州工程学院 | Solar-cell high and low temperature photovoltaic characteristic test experiment table |
| CN108957112A (en) * | 2018-07-04 | 2018-12-07 | 南京中认南信检测技术有限公司 | Photovoltaic module current continuity monitor |
| CN109150099A (en) * | 2017-12-30 | 2019-01-04 | 苏州阿特斯阳光电力科技有限公司 | A kind of photovoltaic optimizer reliability assessment device |
-
2013
- 2013-11-07 CN CN201320703897.5U patent/CN203554385U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868844A (en) * | 2015-05-22 | 2015-08-26 | 徐州工程学院 | Solar-cell high and low temperature photovoltaic characteristic test experiment table |
| CN109150099A (en) * | 2017-12-30 | 2019-01-04 | 苏州阿特斯阳光电力科技有限公司 | A kind of photovoltaic optimizer reliability assessment device |
| CN109150099B (en) * | 2017-12-30 | 2020-02-18 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic optimizer reliability evaluation device |
| CN108957112A (en) * | 2018-07-04 | 2018-12-07 | 南京中认南信检测技术有限公司 | Photovoltaic module current continuity monitor |
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