基于UPFC的光伏发电系统主动并网研究

Research on active grid-connected control of stand-alone PV system based on UPFC

针对独立光伏发电系统的不足和升级改造的不经济性,提出基于UPFC的独立光伏发电系统主动并网方法。利用UPFC的综合控制功能,主动调节光伏发电系统的并网参数,实现快速、平滑并网。给出了并网控制器模型和并网控制结构。仿真分析表明了该方法的正确性和有效性。

Aiming at shortcoming and diseconomy of upgrades and reconstruction of stand-alone PV system, a novel active grid-connected control method of stand-alone PV system was proposed based on UPFC. Then the grid-connected control rapidly and smoothly could be achieved through actively adjust the parameters of photovoltaic power generation system by UPFC. The model and control structure of grid-connected controller were given. The correctness and validity of the control strategies were verified by the simulation result.