Proportional-resonant Control Method of Three-Phase Grid-Connected Inverter
In recent years,the research on control strategy of three-phase grid-connected inverter has attracted significant attention.Proportion integration(PI)control method is widely utilized to control the grid-connected inverter.However,coordinate transformation is an essential and complex step during the design process of the conventional PI controller.It is difficult to implement in practice due to the complex coordinate transformation.The proportional-resonant(PR)control method of the three-phase grid-connected inverter is proposed,where the conventional PI controller is replaced by PR controller.PR controller has a simple structure as the complex coordinate transformation can be neglected.In order to improve the power factor and the stability of the system,double closed loop structure is also introduced in the proposed control strategy.In the end,simulation software is developed,and the simulation results confirm the effectiveness of the proposed control method.
Key Words: Three-Phase Inverter Grid-Connected Inverter PR Control Double Closed Loop
Yumei Liu Rui Bai Daoqian Wang Wenge Ma Lin Wang
School of Electrical Engineering of Liaoning University of Technology,Liaoning Jinzhou 121001 Electric Power Research Institute,Shenzhen BYD Auto Co.,Ltd,Shenzhen,518118,P.R.China
国际会议
长沙
英文
1497-4800
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）