Design Of Grid-Connected Photovoltaic System Based On TMS320F2812

Grid-connected photovoltaic system is a set of system which can converts solar energy into electrical energy. Recently years, according to the problems of environmental pollution and exhaustion of energy sources become worse, the grid-connected photovoltaic system has been a hot spot that most countries research and develop. The purpose of this paper is to design a set of grid-connected photovoltaic system based on TMS320F2812.The history and the current condition of grid-connected photovoltaic system are introduced at the beginning of the paper. Then the paper focuses on single-phase grid-connected system. The topology, control strategy, parameter selection of grid-connected photovoltaic system, Maximum power point tracking and island effect are analyzed and studied in detail. The paper Designs main circuit and control circuit which based on TMS320F2812, Makes and debugs hardware circuit. Control routine of TMS320F2812 is also Designed in the paper.At the end of the paper experiment results of hardware circuit and software routine are discussed. The conclusion indicates that the designs of hardware and software are reasonable.