Title :
Unity power factor operation for 3-phase induction motors
Author :
Mahfouz, Ahmed Alaa ; Malik, O.P.
Author_Institution :
Dept. of Electr. Power & Machines, Cairo Univ., Giza, Egypt
Abstract :
This paper describes the possibility of unity power factor operation for three-phase induction motors. The basic idea is to use static reactive power compensation (SVC) with a double-stator winding three-phase induction motor to provide such operation. The compensator consists of a three-phase pulse width modulated (PWM) voltage source inverter connected to either a self or independently controlled DC bus. The voltage-source PWM inverter is connected to one set of the stator windings of the induction machine, while the other set is connected directly to the supply. The system has been studied theoretically and implemented using a shunt and a series type SVC. A microcontroller-based system has been tested in the laboratory to evaluate the motor performance
Keywords :
DC-AC power convertors; PWM invertors; control system analysis computing; electric machine analysis computing; induction motors; machine control; machine testing; machine theory; microcontrollers; reactive power control; static VAr compensators; stators; PWM voltage source inverter; SVC; VSI; computer simulation; double-stator winding; microcontroller; performance; static reactive power compensation; test results; three-phase induction motors; unity power factor operation; Induction machines; Induction motors; Laboratories; Pulse inverters; Pulse width modulation inverters; Reactive power; Static VAr compensators; Stator windings; System testing; Voltage control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3026-9
DOI :
10.1109/IECON.1995.483412
