基于比例积分抑制LCL滤波电路谐振的方法研究  

Research on Canceling Resonance of LCL Filter Circuit Based on Proportional-integrator Controller

作　　者：贺子航 覃发梧 HE Zi-hang;QIN Fa-wu(School of Electrical Engineering of Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学电气工程学院

出　　处：《电气开关》2019年第3期42-45,共4页Electric Switchgear

摘　　要：讨论了 LCL型滤波电路的优点以及其谐振对并网逆变器系统的危害,针对减小LCL电路的谐振危害,在现有的几种抑制谐振方法的基础上,提出了利用比例积分调节器来抑制该谐振的方法。并通过控制环路参数设计、系统稳定性分析、仿真及实验结果验证了该方法的可行性。This paper discusses the advantages of the LCL filter circuit and the harm to the grid-connected inverter system because of its resonance. To eliminate the harm of the resonance of the LCL circuit, consider in several existing methods for eliminating resonance, a new method to eliminate the resonance with proportional-integral regulator is proposed. And through the control loop parameter design, system stability analysis, simulation and experimental results ,the feasibility of the method is verified.

关 键 词：LCL滤波电路 比例积分调节器 抑制谐振 

分 类 号：TN710[电子电信—电路与系统]