Title :
A modified space vector PWM current regulator for improved torque control of a three-phase induction motor
Author :
Mohamadian, M. ; Nowicki, E.P. ; Ashrafzadeh, F. ; Evanik, E. ; Salmon, J.C.
Author_Institution :
Dept. of Electr. Eng., Calgary Univ., Alta., Canada
Abstract :
A new voltage controlled current regulator is introduced for the torque control of a three-phase induction motor. The control procedure is similar to that of a space vector current regulator except that the switching time for the zero switching vector is chosen such that the error between the reference current and the actual current is reduced in each sampling time. Simulation results show that employing this current control method will improve the transient torque response of the induction motor while in the steady-state. The stator current in the conventional and modified methods are approximately the same
Keywords :
DC-AC power convertors; PWM invertors; control system analysis; control system synthesis; electric current control; induction motors; machine control; stators; switching circuits; torque control; transient response; control design; control simulation; sampling time; space vector PWM current regulator; stator current; steady-state; switching time; three-phase induction motor; torque control; transient torque response; zero switching vector; Current control; Error correction; Induction motors; Regulators; Sampling methods; Space vector pulse width modulation; Stators; Steady-state; Torque control; Voltage control;
Conference_Titel :
Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on
Conference_Location :
St. Johns, Nfld.
Print_ISBN :
0-7803-3716-6
DOI :
10.1109/CCECE.1997.608349
