A kind of indoor test device and test method of solar energy low-magnification concentrating photovoltaic cell

Abstract

The invention relates to a test device and test method in a solar low-concentrated photovoltaic cell chamber. The test device is characterized in that simulated sun light emitted from a solar simulator irradiates a low-concentrated photovoltaic cell platform, and the solar simulator and the low-concentrated photovoltaic cell platform are connected with a measurement and control device; and during test, a heat sink and an xenon lamp array are startedby themeasurement and control box, the measurement and control box controls a shutter to be instantaneously opened and closed when the simulated sun light generated by the xenon lamp array is stable, and simultaneously acquires and records the electrical property output from a low-concentrated photovoltaic cell, so that the performance test for the low-concentrated photovoltaic cell during certain temperature andconcentrationstandard simulated sun light irradiation is achieved. The simulated sun light with different concentration ratios is acquired by integrating sphere light balancing and by controlling the switch-on quantity of xenon lamps in the xenon lamp array, the performance of the low-concentrated photovoltaic cell can be ensured on the condition of measuring different concentration ratios, and the test device and the test method have the advantages of convenience in operation, test accuracy and lower cost.

Description

technical field [0001] The invention belongs to the field of concentrating photovoltaic research, and relates to an indoor testing device and testing method for solar low-power concentrating photovoltaic cells. Background technique [0002] In the development process of concentrating photovoltaic systems, for low concentration photovoltaic cells with a concentration ratio of 2 to 10, it is obviously difficult to meet the requirements for performance measurement using a standard solar simulator test system with 1 times concentration. Although increasing the current through the xenon lamp can obtain simulated sunlight with higher irradiance, as the current increases, the spectral distribution of the simulated sunlight will change, which makes the existing filters unable to meet the filtering requirements and changes the simulated sunlight. The spectral distribution of light leads to the introduction of more error values ​​in the performance measurement process of low-power con...

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Problems solved by technology

[0002] In the development process of concentrating photovoltaic systems, for low-power concentrating photovoltaic cells with a concentration ratio of 2 to 10, it is obviously difficult to meet the requirements for performance measurement using a standard solar simulator test system with 1 times concentration

Although increasing the current through the xenon lamp can obtain simulated sunlight with higher irradiance, as the current increases, the spectral distribution of the simulated sunlight will change, which makes the existing filters unable to meet the filtering requirements and changes the simulated sunlight. The spectral distribution of light, which in turn leads to the introduction of more error values ​​in the performance measurement process of low-power concentrating photovoltaic cells. In addition, the increase in current increases the heat generation of the test system, resulting in more energy loss

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