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Method for calibrating photoelectric voltage current characteristic parameters of back-contact solar battery

A technology of photovoltaic characteristics and solar cells, applied in the field of solar energy, to achieve the effects of simple and easy calibration method, avoiding short circuit, and saving costs

Active Publication Date: 2013-10-09
CSI CELLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this test method requires a test platform that is completely different from conventional solar cells and a first-level standard sheet

Method used

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  • Method for calibrating photoelectric voltage current characteristic parameters of back-contact solar battery
  • Method for calibrating photoelectric voltage current characteristic parameters of back-contact solar battery
  • Method for calibrating photoelectric voltage current characteristic parameters of back-contact solar battery

Examples

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Embodiment 1

[0025] see image 3 As shown, a method for calibrating the photovoltaic characteristic parameters of a back-contact solar cell includes the following steps:

[0026] Step 1, cover the light-receiving surface electrode of the back-contact solar cell to be calibrated and extend to the backlight surface with an insulating tape, so that the backlight surface electrode and the light-receiving surface electrode are insulated;

[0027] Step 2: With the help of the first-level standard sheet of the four-grid solar cell that has been calibrated by a professional organization, the upper and lower probes of the test platform are respectively contacted with the light-receiving surface electrode and the backlight surface electrode of the first-level standard sheet, and the software of the test platform is corrected. parameters, so that the measured value of the primary standard sheet is consistent with the calibration value;

[0028] Step 3: Touch the upper and lower probes of the test pl...

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Abstract

The invention discloses a method for calibrating photoelectric voltage current characteristic parameters of a back-contact solar battery. The method includes the following steps: (1) arranging an insulating layer at the position, relative to the positions of various illuminated-face electrodes, on the backlight face of the back-contact solar battery to be calibrated, (2) adopting a first-grade calibrating sheet, calibrated by a professional institute, of a conventional solar battery, enabling illuminated-face electrode test probes and backlight-face electrode test probes to be contacted with illuminated-face electrodes and backlight-face electrodes of the first-grade calibrating sheet respectively, enabling the measured value of the first-grade calibrating sheet and a calibrated value to be consistent by correcting software parameters of a test platform, (3) enabling the illuminated-face electrode test probes and the backlight-face electrode test probes to be contacted with the illuminated face electrodes and backlight face electrodes of the back-contact solar battery to be calibrated respectively, and considering the measured value as the calibrated value. The method, based on the first-grade calibrating sheet of the conventional solar battery, developed for calibrating the photoelectric voltage current characteristic parameters of the back-contact solar battery is developed, and calibration on different types of solar batteries is achieved.

Description

technical field [0001] The invention relates to a method for calibrating photovoltaic characteristic parameters of a back-contact solar cell, belonging to the technical field of solar energy. Background technique [0002] With the wide application of solar cell components, photovoltaic power generation occupies an increasingly important proportion in new energy and has achieved rapid development. Solar power generation devices are also called solar cells or photovoltaic cells, and their power generation principle is based on the photovoltaic effect of semiconductor PN junctions. [0003] Double-sided contact cell is a common solar cell, and the method of calibrating the photovoltaic characteristic parameters of this cell is the calibration between similar solar cells. The positive and negative electrodes of the double-sided contact solar cell are respectively placed on the light-receiving and backlight surfaces. When calibrating the photovoltaic characteristic parameters of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26
CPCY02E10/50
Inventor 吴坚王栩生章灵军
Owner CSI CELLS CO LTD
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