三相单级式光伏并网控制策略仿真

根据单级式光伏并网系统的拓扑结构及工作原理,建立了基于电网电压定向的矢量控制的并网逆变系统.该系统控制部分采用了最大功率跟踪、电压外环、电流内环的控制策略,保证光伏系统最大功率输出,实现并网电流与电网电压同频同相,高功率因素运行.

Simulation of the control strategy for Three-phase single-stage PV grid system

This paper established the PV grid system based on grid voltage oriented vector control by the theory of the topology and operating principle of single-stage photovoltaic system.This system used three loop controller,including max power point tracking、voltage feedback and current feedback which ensure the system can output the maximum power and the output current synchronize with the frequency of the grid voltage,operating with high power factor.