Starting control of wound-rotor induction motors by using chopper-controlled resistance in rotor circuit

Author

Moo, Chin S. ; Wei, Chung C. ; Huang, Ching L. ; Chen, Chao S.

Author_Institution

Inst. of Electr. Eng., Nat. Cheng Kung Univ., Taiwan

fYear

1989

fDate

1-5 Oct. 1989

Firstpage

2295

Abstract

The improvement of startup transient performance of three-phase wound-rotor induction motors by using chopper-controlled resistance in the rotor circuit was investigated. By properly controlling the dirty cycle of the chopper to adjust the equivalent rotor resistance, higher output torque with lower starting current can be obtained. To control the startup performance under several load conditions and system requirements, maximum torque operation and limited-current operation were considered. The transient current, speed, and torque of the induction motors were investigated by computer simulation, and numerical results were verified by experimental tests.<>

Keywords

choppers (circuits); induction motors; machine control; rotors; starting; 3-phase wound rotor induction motors; chopper-controlled resistance; computer simulation; limited-current operation; load conditions; rotor circuit; speed; startup transient performance; torque operation; transient current; Choppers; Circuits; Electric resistance; Induction motors; Power system harmonics; Power system transients; Resistors; Rotors; Surges; Torque control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE

Conference_Location

San Diego, CA, USA

Type

conf

DOI

10.1109/IAS.1989.96962

Filename

96962