CN111478664A - Photovoltaic module test system - Google Patents
Photovoltaic module test system Download PDFInfo
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- CN111478664A CN111478664A CN202010479184.XA CN202010479184A CN111478664A CN 111478664 A CN111478664 A CN 111478664A CN 202010479184 A CN202010479184 A CN 202010479184A CN 111478664 A CN111478664 A CN 111478664A
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- photovoltaic module
- light source
- humidity
- testing system
- temperature
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- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 238000005498 polishing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
-
- 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
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- Photovoltaic Devices (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a photovoltaic module testing system, which comprises an I-V curve tester, a light source control device, an upper light source, a lower light source and an irradiation intensity sensor which are connected with the light source control device, a corner device connected with a photovoltaic module, a temperature and humidity circulating device, a humidity sensor, a temperature sensor and a wind speed tester which are connected with the temperature and humidity circulating device and used for controlling the temperature, the humidity and the wind speed of the environment where the photovoltaic module is located.
Description
Technical Field
The invention belongs to the technical field of photovoltaic equipment, and particularly relates to a photovoltaic module testing system.
Background
In the prior art, a solar outdoor power generation test system comprises an irradiance meter, a temperature measuring sensor and an environmental information acquisition device, wherein the irradiance meter, the temperature measuring sensor and the environmental information acquisition device are used for storing solar irradiance, backboard temperature and environmental parameters; and the data processor is connected with the data acquisition unit and used for recording the power generation parameters of the photovoltaic assembly and calculating the power generation efficiency of the photovoltaic assembly, and analyzing the relation between the power generation parameters and the solar irradiance and environmental parameters by comparing the images.
However, the above-mentioned solutions can only be tested at a certain inclination and under standard conditions (STC: atmospheric quality AM1.5, illumination intensity 1000W/m)2The maximum power output by the solar cell module at normal incidence and at a temperature of 25 deg.c is taken and is referred to as the peak power. However, there are differences between indoor and outdoor applications, and factors such as light, temperature, wind speed, humidity, etc. have some effect on the power of the components, for example, high humidity and heat environments are generally accompanied by strong light conditions. Therefore, the photovoltaic module testing system has certain limitation on the evaluation of the module power, and cannot test the power of the photovoltaic module in an outdoor application environment.
Disclosure of Invention
In order to solve the problems, the invention provides a photovoltaic module testing system which can realize power testing of a module under high-temperature, high-humidity and windy conditions, better reproduce outdoor complex environment factors and comprehensively test module power changes caused by more factors.
The invention provides a photovoltaic module testing system which comprises an I-V curve tester, a light source control device, an upper light source, a lower light source, an irradiation intensity sensor, a corner device, a temperature and humidity circulating device, a humidity sensor, a temperature sensor and a wind speed tester, wherein the upper light source, the lower light source and the irradiation intensity sensor are connected with the light source control device, the corner device is connected with a photovoltaic module, and the temperature and humidity circulating device, the humidity sensor, the temperature sensor and the wind speed tester are connected with the temperature and humidity circulating device and are used for controlling the temperature.
Preferably, in the photovoltaic module testing system, the temperature and humidity circulating device includes a humidifying part, a heating part, a circulating pipeline and a wind speed control part.
Preferably, in the above photovoltaic module testing system, the humidifying component is an ultrasonic generator.
Preferably, in the photovoltaic module testing system, the humidity sensor is an electronic humidity sensor.
Preferably, in the photovoltaic module testing system, the inner wall of the circulation pipeline is made of fluoride or ceramic.
Preferably, in the above photovoltaic module testing system, the light source is an AAA grade AM1.5 standard solar light source.
Preferably, in the above photovoltaic module testing system, the light source is at least one of a xenon lamp, an L ED lamp or a hybrid laser.
Preferably, in the above photovoltaic module testing system, the light source includes a front surface polishing component and a back surface polishing component, and the light intensity range of the front surface polishing component is 1000W/m2To 1400W/m2The light intensity range of the back surface polishing component is 100W/m2To 500W/m2。
Preferably, in the photovoltaic module testing system, the heating component is a ceramic heater, an electric heating tube or a resistance wire.
According to the above description, the photovoltaic module testing system provided by the invention comprises the temperature and humidity circulating device, and the humidity sensor, the temperature sensor and the wind speed tester which are connected with the temperature and humidity circulating device and are used for controlling the temperature, the humidity and the wind speed of the environment where the photovoltaic module is located, so that the power test of the module under the conditions of high temperature, high humidity and wind can be realized, the outdoor complex environment factors can be better reproduced, and the power change of the module caused by more factors can be comprehensively tested.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a photovoltaic module testing system provided in the present invention.
Detailed Description
The core of the invention is to provide a photovoltaic module testing system, which can realize the power test of the module under the conditions of high temperature, high humidity and wind, better reproduce outdoor complex environment factors and comprehensively test the power change of the module caused by more factors.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of a photovoltaic module testing system provided by the present invention is shown in fig. 1, and fig. 1 is a schematic diagram of an embodiment of a photovoltaic module testing system provided by the present invention, the photovoltaic module testing system includes an I-V curve tester capable of integrating ultrafast I-V, direct current I-V and C-V measurement functions in the same test sequence, where I represents current, V represents voltage, and C represents capacitance, and the I-V test is responsible for testing a voltage and current variation curve after an optical signal received by a module, the I-V curve tester has a detection principle of connecting a photovoltaic module to a dedicated capacitor as a variable load, sampling current and voltage during a process of charging the capacitor by the photovoltaic module, and recording corresponding current and voltage data to draw an I-V curve diagram, which is a device originally provided in the photovoltaic module testing system, the system also comprises a light source control device 1, an upper light source 2, a lower light source 3 and an irradiation intensity sensor 4 which are connected with the light source control device, wherein the upper light source is positioned above the photovoltaic module and used for providing an irradiation light source for the front side of the photovoltaic module, the lower light source is positioned below the photovoltaic module and used for providing an irradiation light source for the back side of the photovoltaic module, so that double-side polishing can be performed, and the system is suitable for testing double-side photovoltaic modules, and also comprises corner devices 6 connected with the photovoltaic module 5, wherein the number of the corner devices 6 can be but is not limited to four as shown in figure 1, and is better in four aspects, so that four corners of the photovoltaic module can be rotated, the change of the angle of the module is realized, and the testing of the photovoltaic modules under different illumination angles can be ensured The temperature sensor 9 and the wind speed tester 10 are used for controlling the temperature, the humidity and the wind speed of the environment where the photovoltaic module 5 is located, the temperature, the humidity and the wind speed of the environment where the photovoltaic module is located can be controlled by the temperature and humidity circulating device by utilizing the humidity data detected by the humidity sensor, the temperature data detected by the temperature sensor and the wind speed data detected by the wind speed tester, and the temperature and humidity circulating device can control the temperature, the humidity and the wind speed of the environment where the photovoltaic module is located to be a specific value, so that the performance parameters of the photovoltaic module under the specific temperature, the humidity and the wind speed can be tested, therefore, the state of the photovoltaic module in the natural environment can be more similar to the state of the photovoltaic module, and the better test effect can be ensured, and it is required to explain that, a group of the humidity sensor 8 and the temperature sensor 9 is arranged at the upper part of the, the humiture data in two regions can be gathered simultaneously like this, can guarantee that the test result of temperature humidity parameter is more reliable, provides better foundation for the regulation of these two kinds of parameters, can also choose for use only a set of humidity transducer and temperature sensor according to actual need certainly, perhaps more multiunit, and here is not restricted.
According to the photovoltaic module testing system provided by the invention, as the temperature and humidity circulating device, the humidity sensor, the temperature sensor and the wind speed tester which are connected with the temperature and humidity circulating device are further included and used for controlling the temperature, the humidity and the wind speed of the environment where the photovoltaic module is located, the power test of the module under the conditions of high temperature, high humidity and wind can be realized, the outdoor complex environment factors can be better reproduced, and the power change of the module caused by more factors can be comprehensively tested.
In an embodiment of the above photovoltaic module testing system, the temperature and humidity circulating device 7 may include a humidifying component, a heating component, a circulating pipeline and a wind speed control component, in which case, the humidifying component can humidify air, the heating component can heat air, and can refrigerate in a compression mode, the humidity range can be controlled between 0% and 100%, the temperature range is between 0 ℃ and 85 ℃, the wind speed control component can control the wind speed in the circulating pipeline, the humidified and heated air can be transmitted to the environment where the photovoltaic module is located through the circulating pipeline by using the components, and the state closer to the natural environment is simulated for the photovoltaic module, so as to ensure that the result of the photovoltaic module testing is more accurate.
It can be understood that above-mentioned humidification part can specifically be ultrasonic generator, can directly pour into the space humidification that photovoltaic module was located with low pressure steam, and humidity transducer can specifically be electronic type humidity sensor, and is more accurate to the detection of humidity like this, can also select for use other types of humidification part and humidity transducer according to actual need certainly, and here is not the restriction.
In addition, in order to better simulate the natural environment of the photovoltaic module, the light source can be preferably an AM1.5 standard solar light source with AAA grade, and the light source can be at least one of a xenon lamp, an L ED lamp or a mixed laser, wherein the mixed laser can be a fixed or variable light source, and the light sources can adjust the irradiation parameters by using the light irradiation intensity detected by the irradiation intensity sensor to provide light rays closer to the natural world for the photovoltaic module2To 1400W/m2The light intensity range of the back side polishing component is 100W/m2To 500W/m2Moreover, the heating component can be a ceramic heater, an electrothermal tube or a resistance wire.
The effect of this solution is described in detail in the following three embodiments:
example 1
Setting the wind speed at 1-5m/s, preheating temperature at 45-55 deg.C, relative humidity at 45% RH, and front light intensity at 1000-2The back light intensity is 200-2And testing the power of the double-sided component.
Example 2
Setting the wind speed at 3-5m/s, preheating temperature at 25-45 deg.C, relative humidity at 60-80% RH, and front light intensity at 1200-2The back light intensity is 300-400W/m2And testing the power of the double-sided component.
Setting the wind speed at 1-2m/s, preheating temperature at 70-85 deg.C, relative humidity at 75-90% RH, and front light intensity at 1200-2The back light intensity is 300-400W/m2And testing the power of the double-sided component.
The test results are shown in table 1, and table 1 shows the test results of three embodiments.
TABLE 1
It can be seen that humidity increases, can influence the light transmissivity to the light intensity descends, leads to the subassembly power to reduce, and consequently humidity and wind speed obviously can influence photovoltaic module's power, thereby this system that this application provided can guarantee that photovoltaic module power's test result is more accurate, more is close the state among the natural environment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A photovoltaic module testing system comprises an I-V curve tester, a light source control device, an upper light source, a lower light source, an irradiation intensity sensor and a corner device, wherein the upper light source, the lower light source and the irradiation intensity sensor are connected with the light source control device, the corner device is connected with a photovoltaic module, and the photovoltaic module testing system is characterized by further comprising a temperature and humidity circulating device, a humidity sensor, a temperature sensor and a wind speed tester which are connected with the temperature and humidity circulating device and used for controlling the temperature, the humidity and the wind speed of the environment where the photovoltaic module is.
2. The photovoltaic module testing system according to claim 1, wherein the temperature and humidity circulating device comprises a humidifying part, a heating part, a circulating pipeline and a wind speed control part.
3. The photovoltaic module testing system of claim 2, wherein the humidifying component is an ultrasonic generator.
4. The photovoltaic module testing system of claim 1, wherein the humidity sensor is an electronic humidity sensor.
5. The photovoltaic module testing system according to claim 2, wherein the inner wall of the circulation pipeline is made of fluoride or ceramic.
6. The photovoltaic module testing system according to any of claims 1-5, wherein the light source is an AAA rated AM1.5 standard solar light source.
7. The photovoltaic module testing system of claim 6, wherein the light source is at least one of a xenon lamp, an L ED lamp, or a hybrid laser.
8. The photovoltaic module testing system according to claim 6, wherein the light source comprises a front surface polishing component and a back surface polishing component, and the light intensity of the front surface polishing component is in the range of 1000W/m2To 1400W/m2The light intensity range of the back surface polishing component is 100W/m2To 500W/m2。
9. The photovoltaic module testing system of claim 2, wherein the heating component is a ceramic heater, an electrical heater tube, or a resistance wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010479184.XA CN111478664A (en) | 2020-05-29 | 2020-05-29 | Photovoltaic module test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010479184.XA CN111478664A (en) | 2020-05-29 | 2020-05-29 | Photovoltaic module test system |
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| CN111478664A true CN111478664A (en) | 2020-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311261A (en) * | 2021-05-10 | 2021-08-27 | 中国船舶重工集团公司第七二三研究所 | Comprehensive test system for testing ship extravehicular electronic equipment |
| CN113686703A (en) * | 2021-08-25 | 2021-11-23 | 袁传 | Testing device for conversion power and mechanical load of double-sided photovoltaic panel |
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- 2020-05-29 CN CN202010479184.XA patent/CN111478664A/en active Pending
Patent Citations (6)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113311261A (en) * | 2021-05-10 | 2021-08-27 | 中国船舶重工集团公司第七二三研究所 | Comprehensive test system for testing ship extravehicular electronic equipment |
| CN113686703A (en) * | 2021-08-25 | 2021-11-23 | 袁传 | Testing device for conversion power and mechanical load of double-sided photovoltaic panel |
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