Improving three-phase induction machines power factor using single phase auxiliary winding fed by an active power filter

Mbika C. Muteba, Adisa A. Jimoh, Dan V. Nicolae

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

This paper presents a three-phase induction machine that employs a single phase auxiliary winding, which is only magnetically coupled to the stator main winding, and controlled by an active power filter. The active filter consists mainly of a two leg PWM voltage source inverter, which together with the auxiliary winding serves to supply leading reactive power to the machine. With sufficient ampere-turn capability of the auxiliary winding and an adequate control algorithm, the computer simulation results show that it is possible to obtain nearly unity power factor operation at the terminals of the main winding over a range of load conditions including rated load. The simulated power factor of this scheme is compared with the measured result for a typical practical induction motor.

Original languageEnglish
Title of host publicationIEEE AFRICON 2007
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventIEEE AFRICON 2007 - Windhoek, South Africa
Duration: 26 Sept 200728 Sept 2007

Publication series

NameIEEE AFRICON Conference

Conference

ConferenceIEEE AFRICON 2007
Country/TerritorySouth Africa
CityWindhoek
Period26/09/0728/09/07

Keywords

  • Active power filter
  • Induction motors
  • Power factor improvement
  • Reactive compensation
  • Single-phase auxiliary winding
  • Three-phase machines

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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