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Photovoltaic emulator, light intensity adjusting method, electronic equipment and storage medium

A photovoltaic simulator and photovoltaic cell technology, applied in the photovoltaic field, can solve problems such as uncontrollable output power of light source

Inactive Publication Date: 2018-12-21
东君新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a photovoltaic simulator, a light intensity adjustment method, electronic equipment and a storage medium, which are used to overcome the technical problem that the output power of the photovoltaic simulator in the prior art is uncontrollable to its own light source

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  • Photovoltaic emulator, light intensity adjusting method, electronic equipment and storage medium
  • Photovoltaic emulator, light intensity adjusting method, electronic equipment and storage medium
  • Photovoltaic emulator, light intensity adjusting method, electronic equipment and storage medium

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Embodiment 1

[0042] Since the photovoltaic simulator in the prior art cannot control the output power of its own light source, in order to ensure that the light intensity of the light source reaches the standard test light intensity specified by the IEC, the prior art will use manual timing and manual adjustment to adjust the output power of the light source. However, the method of manual timing and manual adjustment not only consumes manpower, but also takes up more production time when the photovoltaic simulator is applied to the assembly line, resulting in lower production efficiency.

[0043] Therefore, in order to overcome the technical problem that the photovoltaic simulator in the prior art cannot control the output power of its own light source, the embodiment of the present invention provides a photovoltaic simulator, including a light source 1 for illuminating the photovoltaic cell 5, such as figure 1 As shown, the photovoltaic simulator also includes: a power supply 2 for the lig...

Embodiment 2

[0055] On the basis of the above-mentioned embodiments, in the embodiment of the present invention, the control module 3 is further configured to determine whether the error rate is greater than a preset value before determining the calibration value of the output power of the light source according to the error rate The allowable error rate of , if yes, proceed to the next step.

[0056] In the embodiment of the present invention, by comparing the error rate between the current value and the standard current value with the preset allowable error rate, it can be realized that while ensuring that the light intensity of the light source 1 reaches the standard test light intensity specified by the IEC, And there is no need to adjust the output power of the light source 1 frequently, so as to ensure that the light source 1 can output in a steady state.

[0057] Wherein, in the embodiment of the present invention, the allowable error rate between the current value and the standard ...

Embodiment 3

[0061] Since the short-circuit current generated by the photovoltaic cell 5 is proportional to the light intensity, and the light intensity of the light source 1 is related to its own output power, the short-circuit current is also proportional to the output power of the light source 1 . Therefore, when the current value obtained by the tester 4 does not reach the standard current value, the control module 3 can determine the calibration value of the output power of the light source 1 according to the error rate between the current value and the standard current value.

[0062] Therefore, on the basis of the above embodiments, in the embodiment of the invention, the control module 3 is specifically configured to determine the product of the error rate and the pre-stored standard output power as the output power of the light source 1 calibration value.

[0063] That is, if the current value sent by the tester 4 is 9.8A, and the standard current value is 10A, then the error rate...

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Abstract

The invention provides a photovoltaic emulator, a light intensity adjusting method, electronic equipment and a storage medium, and relates to the technical field of photovoltaic. The photovoltaic emulator comprises a light source for illuminating a photovoltaic cell, and further comprises a power source for supplying power to the light source, a tester and a control module. The tester is connectedwith the photovoltaic cell and the control module separately for obtaining a current value of a short-circuit current generated by the photovoltaic cell after being irradiated and sending the currentvalue to the control module. The control module is connected with the power source for determining a calibration value of output power of the light source according to the current value and a pre-stored standard current value and controlling the power source to adjust the output power according to the calibration value. Since the short-circuit current generated by the photovoltaic cell after being irradiated is proportional to the output power of the light source, the control module can automatically adjust the output power of the light source according to the obtained current value of the short-circuit current and the stored standard current value to solve the technical problem that the output power of the light source is uncontrollable in the prior art.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a photovoltaic simulator, a method for adjusting light intensity, electronic equipment and a storage medium. Background technique [0002] A photovoltaic simulator is a device used to simulate sunlight and is widely used in the testing of components and chips in the photovoltaic field. Since the energy distribution of the radiation spectrum of the xenon lamp is close to that of sunlight, many enterprises use the xenon lamp as the light source of the photovoltaic simulator. [0003] However, since the output power of the xenon lamp is continuously attenuated during use, as time goes by, the light intensity of the xenon lamp will not reach the standard test light intensity of 1000W / ㎡ stipulated by the IEC (International Electrotechnical Commission, International Electrotechnical Commission). [0004] Therefore, how to control the output power of the light source is a problem...

Claims

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Application Information

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IPC IPC(8): G01J1/10G01J1/18G01M11/00
CPCG01J1/10G01J1/18G01M11/00
Inventor 陈何辉倪利洲王溢欢江湖刘俐兵高月月萧吉宏
Owner 东君新能源有限公司
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