Use of an LC filter to achieve a motor-friendly performance of the PWM voltage source inverter

Author

Steinke, Juergen K.

Author_Institution

ABB Ind. AG, Turgi, Switzerland

Volume

14

Issue

3

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

649

Lastpage

654

Abstract

By putting an LC filter between a PWM voltage source inverter and induction motor, standard industrial motors can also be utilized for adjustable speed drive applications. In this paper, the application of an LC filter to medium voltage motors fed by inverters with switching frequencies below 1000 Hz is described. For different filter topologies, rules for the electrical design are discussed as well as solutions for the stability problem. Also discussed are solutions against common mode voltage stress on the motor terminals. An example shows the implication of the filter on the minimum inverter power which has to be installed to feed a given motor

Keywords

DC-AC power convertors; PWM invertors; induction motors; power filters; thyristor convertors; variable speed drives; LC filter; PWM voltage source inverter; adjustable speed drive applications; common mode voltage stress; electrical design; filter topologies; induction motor; motor terminals; motor-friendly performance; stability problem; switching frequencies; Feeds; Filters; Induction motors; Medium voltage; Pulse width modulation inverters; Stability; Stress; Switching frequency; Topology; Variable speed drives;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.790930

Filename

790930