逆变器输出端共模与差模电压dv/dt滤波器设计  

Design of common-mode and differential-mode voltage dv/dt filter at inverter output terminals

作　　者：戴珊[1] 顾涛[1] 杨磊[1] 钱炜炜 季欢庆 

机构地区：[1]上海市电力公司崇明供电公司,上海202150

出　　处：《电源技术》2015年第9期1985-1988,共4页Chinese Journal of Power Sources

摘　　要：逆变器产生的高频共模电压导致了其在变频调速应用中的一系列负面效应。通过对逆变器驱动电机系统产生的共模及差模电压分析,提出了一种改进型的逆变器无源滤波器,并给出了具体的参数选取原则与设计方法。采用提出的滤波器可以降低差模和共模干扰,同时电机对地漏电流也相应减小。通过理论分析和仿真结果证明了这种滤波器的有效性。The high-frequency common-mode voltage generated by inverter results in a series of negative effect in the application. An improved inverter side passive filter was proposed on the basis of analysis of common-mode and differential-mode voltage generated by inverter motor. The selection rule and design method of reference were given. The proposed filter can reduce common-mode and differentia-mode interference, at the same time the leakage current at the motor is correspondingly reduced. The theoretical analysis and simulation results verify the effectiveness of the method.

关 键 词：共模电压 差模电压 逆变器 无源滤波器 

分 类 号：TM464[电气工程—电器]