Unity power factor operation for three-phase induction motor

Author

Ruan, Lifei ; Zhang, Wanfeng ; Ye, Pengsheng

Author_Institution

Power Inst., Jiao Tong Univ., Shanghai, China

Volume

3

fYear

2000

fDate

2000

Firstpage

1414

Abstract

This paper describes the feasibility of unity power factor operation for three-phase induction motor subjected to variable loads. The basic idea is to use a shunt active power filter to provide such operation. The operation principle is introduced. The two-loop control strategy is analyzed. Simulation results show that, under all loading conditions, unity power factor is achieved automatically. Furthermore, the supply current can be kept sinusoidal. A microcontroller-based system has been tested in the lab to confirm the analysis. The experimental results show that the strategy to improve power factor of the motor is feasible

Keywords

active filters; electric current control; induction motors; machine control; microcontrollers; power factor; power filters; voltage control; electric current control; loading conditions; microcontroller-based system; operation principle; shunt active power filter; three-phase induction motor; two-loop control strategy; unity power factor operation; variable loads; voltage control; Active filters; Automatic control; Capacitors; Current supplies; DC motors; Induction motors; Pulse width modulation inverters; Reactive power; System testing; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.883069

Filename

883069