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Single flash testing instrument of film solar battery assembly

A thin-film solar cell and tester technology, which can be used in the testing of single semiconductor devices, photovoltaic power generation, electrical components, etc., and can solve the problems of heavy weight and large volume.

Inactive Publication Date: 2004-10-20
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] When the LC network discharge circuit of the main power supply matches the impedance of the pulsed xenon lamp supplied, the light emitted by the pulsed xenon lamp is close to a square wave, and the impedance matching condition is R 0 = L C , This condition requires that the root of the ratio of the inductance and capacitance of the LC network be equal to the impedance of the pulsed xenon lamp. Since the characteristic impedance of the tubular xenon lamp is proportional to its pole spacing, the inductance needs to be very large in the solar module tester using the tubular xenon lamp as the light source. Large, but it is difficult to make the inductance large. Large inductance means large volume and heavy weight, which is not good for reducing the size and weight of the tester

Method used

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  • Single flash testing instrument of film solar battery assembly
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  • Single flash testing instrument of film solar battery assembly

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Embodiment Construction

[0019] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] In the present invention, a loop coil is designed on the output wire of the main power supply connected to the pulse xenon lamp, and a capacitor with a certain capacity is connected in parallel at both ends of the pulse xenon lamp, such as figure 1 shown. The capacitor connected in parallel with the pulsed xenon lamp is connected in series with the loop coil, and the capacitance C = L R 0 2 , where L is the inductance of the loop coil, R 0 is the characteristic impedance of the xenon lamp.

[0021] The structure of the loopback coil on the main line is as follows figure 2 shown. Main wire loop coil 3 is 16mm 2 The single-strand red copper wire is wound on the hollow porcelain cylinder 1 circle by circl...

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Abstract

A single flash tester of film solar cell module is disclosed. Its analog light source is the parallelly connected two pulse xenon lamps connected to main power supply. Each pulse xenon lamp is connected to a large-current preburning circuit isolated to the main power supply by diode. A coil at the output of main power supply is serially connected to a capacitor parallelly connected with pulse xenon lamps. A scanning voltage is used to scan the module to be tested in decrement mode beginning from its open-circuit voltage. Its advantage is no influence of the capacitance to result.

Description

Technical field: [0001] The present invention relates to a thin-film solar cell component tester, in particular to a single-flash large-area thin-film solar cell component tester, which can measure the volt-ampere characteristics of thin-film solar cells, and further obtain various electrical performance parameters, belonging to solar Field of battery testing technology. technical background: [0002] The light-emitting waveform of the single-flash pulse solar cell module tester needs a flat quasi-continuous simulated light during the light-emitting period. Conventional single-flash pulse solar cell module testers generally use the main power supply with LC network discharge function for The pulsed xenon lamp supplies power, but because the impedance matching between the LC network and the pulsed xenon lamp is difficult to ensure a good match, the light waveform often has problems of over-discharge and light intensity drop too fast, which is very unfavorable for accurate tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/15H05B41/32
CPCY02E10/50
Inventor 徐林
Owner SHANGHAI JIAO TONG UNIV
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