Research on the Capacity Test Method of Photovoltaic Solar Cells under the Application of Clean Energy 

Jing Pan1, Guanghua Zhang2* 

1Department of Physics and Chemistry, Taiyuan University, Taiyuan, 030000, China 

2Department of Computer Science and Engineering, Taiyuan University, Taiyuan, 030000, China 

Abstract: Online testing of photovoltaic solar cell capacity can effectively maintain the service life of photo-voltaic solar cells. When the photovoltaic solar cell capacity is tested by the traditional test method, the ob-tained photovoltaic solar cell capacity has an error and the error is large. A test method of photovoltaic solar cell capacity based on improved Coulomb measurement is proposed. The test data information of the photo-voltaic solar cell capacity is classified. The Coulomb measurement principle is used to describe the transfer rules between photovoltaic solar cell capacity data information, and the median filtering is used to construct the nonlinear median filter state equation and observation equation of photovoltaic solar cell capacity. Taking the electric energy consumed by the photovoltaic solar cell as the median filter state variable, and the voltage as the observed signal value of the photovoltaic solar cell capacity, we can obtain the online estimated value of the photovoltaic solar cell capacity at the current time, which effectively eliminates the measurement error generated in the test of photovoltaic solar cell capacity and completes the test of the photovoltaic solar cell capacity. Simulation experiment shows that the test method of photovoltaic solar cell capacity based on im-proved Coulomb measurement method maintains the service life of photovoltaic solar cells and ensures the normal operation of photovoltaic solar cells. 

Keywords: Charge; Median filtering; Cell capacity test