Starting control of wound-rotor induction motors by using chopper-controlled resistance in rotor circuit
Starting control of wound-rotor induction motors by using chopper-controlled resistance in rotor circuit
- Conference Record - IAS Annual Meeting (IEEE Industry Applications Society), p.(pt 2), 1989 .
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.
CHOPPERS
COMPUTER SIMULATION
ELECTRIC DRIVE--CONTROL
ELECTRIC MOTORS--TRANSIENTS
ELECTRIC NETWORKS--EQUIVALENT CIRCUITS
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.
CHOPPERS
COMPUTER SIMULATION
ELECTRIC DRIVE--CONTROL
ELECTRIC MOTORS--TRANSIENTS
ELECTRIC NETWORKS--EQUIVALENT CIRCUITS