A New Passive Filter Design Method for Overvoltage Suppression and Bearing Currents Mitigation in a Long Cable Based PWM Inverter-Fed Motor Drive System

被引：0

作者：

Wu, Weimin ^{[1
]}

Jiang, Yanmin ^{[1
]}

Liu, Yuan ^{[1
]}

Huang, Min ^{[1
]}

He, Yuanbin ^{[2
]}

Chung, Shu-Hung ^{[2
]}

机构：

[1] Shanghai Maritime Univ, Dept Elect Engn, Shanghai 201309, Peoples R China

[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

2016 IEEE 8TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC-ECCE ASIA) | 2016年

关键词：

overvoltage; long cable; Bearing current; PWM; inverter; characteristic impedance; COMMON;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High-frequency pulse width modulation (PWM) in inverter-fed induction motor drive systems are widely used in industrial applications because of their flexible speed control and energy efficiency. However, high-frequency pulses induce overvoltage spikes to the motor via long cable. Such phenomenon would cause serious deterioration of the motor and cable. A passive overvoltage suppression techniques of low-loss "RL-plus-C" filter has been proposed recently. It has not only some merits of simple structure, low cost, and good robustness, but also a significant merit of low power dissipation. Based on the design method of "RL-plus-C" filter, this paper presents a new passive filter design method which can both eliminate voltage surges and greatly reduce inverter-induced bearing currents. The theoretical analysis and the design method are introduced in detail. Simulation results are good agreement with the theoretical analysis.

引用

页数：8

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