A New Inverter Output Passive Filter Topology for PWM Motor Drives

摘要：

In this paper a new inverter output filter is proposed. The proposed filter is comprised of a conventional resistance, inductance, capacitance (RLC) network cascaded with an LC trap filter and an additive coil on the inductor of the RLC filter. The scheme is very effective in reducing the switching harmonics, suppressing the common-mode voltage and reducing differential-mode. This paper illustrates and analyzes the common-mode and differential-mode equivalent circuit of the filter in detail. The voltage transfer functions of the differential-mode circuit and the common-mode equivalent circuit are analyzed. An engineering design method of the filter parameters is presented. The experiments with a conventional filter and the proposed filter are also done. The comparison verifies the proposed filter viability and effectiveness in eliminating in eliminating common-mode voltage and differential-mode dv/dt

关键词： PWM inverter passive filter common-mode voltage differential-mode voltage

作者: Wang Xu Huang Kaizheng Xu Bin

作者单位: Northeastern University,Liaoning 110004 China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）