Controlling the speed of an induction motor by resonating the rotor circuit

Author

Reinert, J.

Author_Institution

Dept. of Electr. & Electron. Eng., Pretoria Univ.

Volume

31

Issue

4

fYear

1995

Firstpage

887

Lastpage

891

Abstract

The possibility of obtaining various torque-speed characteristics from a wound-rotor induction motor by operating such a motor close to its rotor resonance is described. It is shown that, by the use of reactive rotor networks, high starting and braking torques may he obtained. An induction motor operating with this proposed technique of speed control also reacts favorably to nonsinusoidal supply voltages and has an improved power factor. No auxiliary machines or power supplies are required and any slip ring induction motor of conventional design can be used

Keywords

braking; control system analysis; control system synthesis; induction motors; machine control; machine testing; machine theory; resonance; rotors; starting; velocity control; braking; control design; experiments; induction motor; nonsinusoidal supply voltages; power factor; reactive rotor networks; rotor circuit resonance; simulation; slip ring; speed control; starting; torque-speed characteristics; wound-rotor; Capacitance; Inductance; Induction motors; Power harmonic filters; Power supplies; RLC circuits; Rotors; Synchronous motors; Torque; Velocity control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.395300

Filename

395300