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Measurement method using solar simulator

A measurement method and technology for solar simulation, applied in the field of measurement based on solar simulators, can solve the problems of low output measurement, the output response of solar cells cannot completely track the illuminance waveform, etc., and achieve the effect of high-speed and high-precision measurement.

Inactive Publication Date: 2007-01-10
NISSHINBO IND INC
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Problems solved by technology

If measuring a solar cell with a slow response, the output measurement sometimes becomes low because the output response of the solar cell cannot completely track the upper illuminance waveform

Method used

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  • Measurement method using solar simulator
  • Measurement method using solar simulator

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Embodiment Construction

[0044] Next, embodiments of the present invention will be described with reference to the drawings. In the present invention, medium-pulse scintillation light having a pulse width shorter than that of single scintillation light and longer than that of short-pulse scintillation light is used. figure 1 Shown is a block diagram of a solar simulator implementing the measurement method of the present invention, figure 2 Shown is a waveform diagram schematically showing the illuminance waveform of the medium-pulse scintillation light used in the method of the present invention. image 3 It is a block diagram in which the middle of the pulse width control circuit using the LC circuit emitting the flickering light having a flat portion at the top of the pulse waveform used in the present invention is omitted.

[0045] When applying the measuring method of the present invention figure 1 In the solar simulator, its light source lamp, such as the power supply circuit 1A of the xenon...

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Abstract

This invention provides a solar simulator measurement method capable of high-accuracy measurements with fast-response photovoltaic devices as well as with slow-response photovoltaic devices, and a solar simulator for implementing the method. A flash having a pulse wave form with a flattened peak is generated from a xenon lamp 1. The flash is sensed by an irradiance detector 3, its irradiance measured, and the irradiance of the light source is adjusted to fall within a prescribed narrow range based on the detected irradiance value. Then, the flash with irradiance within the prescribed range irradiates photovoltaic devices 4 under measurement, and the current and the voltage output by the photovoltaic devices 4 are measured at multiple points while a load of the photovoltaic devices 4 is controlled. This process is repeated with multiple flashes to obtain an I-V curve for the photovoltaic devices.

Description

technical field [0001] The invention relates to a measurement method based on a solar simulator for measuring the current-voltage characteristics (hereinafter simply referred to as characteristics) of photoelectric conversion elements such as solar cells and their panels at high speed and high precision. Background technique [0002] The photoelectric conversion characteristics of photoelectric conversion elements such as solar cells, photosensitive elements, and photosensors can be measured by measuring the current-voltage characteristics of the above-mentioned photoelectric conversion elements under light irradiation. In the characteristic measurement of a solar cell, if the horizontal axis is voltage and the vertical axis is current, the output characteristic curve can be obtained by plotting the collected data. This curve is generally called the I-V curve. [0003] The measurement method includes the method of using sunlight as the irradiating light and the method of us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R19/00G01R31/36G01M11/00
CPCG01J1/32G01J1/08G01R31/2605H02S50/10Y02E10/50
Inventor 下斗米光博篠原善裕
Owner NISSHINBO IND INC
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