Research of three-loop Control Method Of PV Grid-connected Inverter

摘要：

The traditional control method for PV grid-connected inverter is two closed loop, if this control method is used for PV grid-connected system, the indication of slow response or increased troubles of system design which is caused by instability of switching frequency. This paper presents a three-loop control to overcome such problems, voltage external loop, current middle loop and frequency inner loop are included this method can solve above-mentioned disadvantages and make the output current THD of grid-connected inverter is a little value. Through building a mathematic model for the PV grid-connected system, the MATLAB/SIMULINK simulation results show that the presented control method is feasible and effective.

关键词： Three-loop Control Hysteresis Band PV grid-connected Inverter

作者: Yi Lingzhi Li Ming Liu Xiang Deng Dong Yao Zhezhi

作者单位: College Of Information Engineering, Xiangtan University, Xiangtan Hunan 410005,China

会议类型: 国际会议

会议名称: The 22nd China Control and Decision Conference(2010年中国控制与决策会议)

会议地点: 徐州

会议语种:英文

页码: 4281-4285

在线出版日期: 2010-05-26（万方平台首次上网日期，不代表论文的发表时间）