Configuration optimizing control system and control method of photovoltaic battery array

Abstract

The invention relates to a configuration optimization control system for a photovoltaic cell array and a method for controlling the same. The control system comprises a light intensity sensor for detecting the light intensity of incident light for the photovoltaic cell array, a temperature sensor for detecting the surface temperature of the photovoltaic cell array, a current and terminal voltage sensor for detecting the output current and the terminal voltage of the photovoltaic cell array, an A / D conversion module, a CPU control unit, a configuration switch control module and the photovoltaic cell array, wherein the output ends of the light intensity sensor, the temperature sensor, the current and terminal voltage sensor are connected with the input end of the A / D conversion module, the output end of the A / D conversion module is connected with the input end of the CPU control unit, the output end of the CPU control unit is connected with the input end of the configuration switch control module, and switching elements (K0 to Kn) of the configuration switch control module are connected with the photovoltaic cell array. The control system and the method control the configuration mode of the photovoltaic array according to the incident light intensity and the surface temperature of the photovoltaic cell array through the real-time detection of the parameters of the photovoltaic cell array such as output power, surface temperature and incident light intensity, and achieve the configuration transformation of the photovoltaic cell array through a configuration control circuit designed by the invention so as to better give play to the working efficiency and the generating capacity of a photovoltaic power generation system.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, and relates to a photovoltaic cell array configuration optimization control system and a control method thereof, which can reduce the intermediate links of the current photovoltaic power generation control system and improve the working efficiency and power generation of the photovoltaic cell power generation system. Background technique [0002] The installation environment and installation location of the photovoltaic cell array have a great impact on the operation of the photovoltaic cell array. With the change of the incident angle of sunlight, the effective incident light intensity of photovoltaic cell arrays in different directions and the surface temperature of photovoltaic cells are quite different. Therefore, when the photovoltaic cell arrays of the same model and the same combination are output at the maximum power point, the output terminal voltages of the photovo...

AI Technical Summary

Problems solved by technology

Through the configuration transformation of photovoltaic cell array, the output voltage of photovoltaic cell array is controlled within a certain range, which can reduce the intermediate links of photovoltaic cell power generation system, thereby improving the overall conversion efficiency of the system, but it cannot realize real-time monitoring and control

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