Design of a Passive Filter to Reduce Common-Mode and Differential-Mode Voltage Generated by Voltage-Source PWM Inverter

Author

Dianguo, Xu ; Qiang, Gao ; Wei, Wang

Author_Institution

Dept. of Electr. Eng., Harbin Inst. of Technol.

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

2483

Lastpage

2487

Abstract

In this paper, a novel passive filter installed at PWM inverter output terminals is proposed with an objective of eliminating the common-mode and differential-mode voltage generated by PWM inverter simultaneously. For determining the parameters of filter, the filter transfer function is utilized to achieve a desirable filtering performance. The detailed design procedure of the filter parameters is given. The validity and effectiveness of proposed filter are supported by the simulation and experimental results carried out on 380 V/3 kW induction motor system. Further investigations also demonstrate that the proposed filter permits motor to be connected with inverter through a long cable. The side-effects induced by common-mode and differential-mode voltage such as shaft voltage, bearing current and leakage current are mitigated effectively

Keywords

PWM invertors; induction motors; leakage currents; machine bearings; power filters; transfer functions; 3 kW; 380 V; bearing current; common-mode elimination; differential-mode voltage; differential-mode voltage generation; induction motor system; leakage current; passive filter design; shaft voltage; transfer function; voltage-source PWM inverter; Active inductors; Capacitors; Induction motors; Leakage current; Passive filters; Pulse width modulation inverters; Resistors; Shafts; Switching frequency; Voltage; PWM inverter; common-mode voltage; differential-mode voltage; passive filter;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Conference_Location

Paris

ISSN

1553-572X

Print_ISBN

1-4244-0390-1

Type

conf

DOI

10.1109/IECON.2006.347531

Filename

4153004