Solar-cell high and low temperature photovoltaic characteristic test experiment table

Abstract

A solar-cell high and low temperature photovoltaic characteristic test experiment table comprises a temperature changing box. A transparent sealing cover is arranged above the temperature changing box. One side of the temperature changing box is connected to a heating device. A refrigeration apparatus is connected to a lower portion of the temperature changing box. A control circuit is arranged in the experiment table. The control circuit comprises a microprocessor. The microprocessor is connected to the heating device and the refrigeration apparatus respectively. The microprocessor is also connected to an upper computer, a display module, a button control module, an alarm module and a data acquisition module used for collecting a current, a voltage, a temperature and illumination intensity information. The size of the experiment table is small, the cost is low and usage is convenient. Different light sources can be used to irradiate the solar cell and sunshine can be directly used to carry out experiment. The refrigeration apparatus and the heating device are arranged in the experiment table so as to simulate different temperatures. A single chip microcomputer is used to automatically record experiment data and can communicate with the upper computer so as to carry out data processing.

Description

technical field [0001] The invention relates to the technical field of solar cell temperature characteristic testing, in particular to a solar cell high and low temperature photovoltaic characteristic testing experimental bench. Background technique [0002] As a new energy technology, solar cells are generally welcomed around the world, but for most solar cells, as the temperature rises, the short-circuit current increases, the open-circuit voltage decreases, and the conversion efficiency decreases. There are already some instruments on the market for measuring the temperature characteristics of solar cells, but they are bulky and expensive, and the light source used for testing can only be artificial light sources. However, artificial light sources cannot fully simulate sunlight, and existing instruments can only The photovoltaic characteristics of solar cells are measured when the temperature is increased, and the photovoltaic characteristics of solar cells when the tempe...

AI Technical Summary

Problems solved by technology

[0002] Solar cells are popular all over the world as a new energy technology, but for most solar cells, as the temperature rises, the short-circuit current increases, the open-circuit voltage decreases, and the conversion efficiency decreases

There are already some instruments on the market for measuring the temperature characteristics of solar cells, but they are bulky and costly, and the light source used for testing can only be artificial light sources, but artificial light sources cannot completely simulate sunlight, and the existing instruments can only Measure the photovoltaic characteristics of solar cells when the temperature increases, but cannot measure the photovoltaic characteristics of solar cells when the temperature decreases

For the data collected by the test, the user also needs to manually record and process

Images