Title :
A strategy for direct self control of induction machine using space voltage modulation
Author :
Chun, Tae-Won ; You, Woo-Jong ; Kim, Kyung-Man
Author_Institution :
Dept. of Electr. Eng., Ulsan Univ., South Korea
fDate :
26 Jun-3 Jul 2001
Abstract :
The paper describes a strategy of DSC to minimize the ripple components of both torque and flux while maintaining the switching frequency constant, using the space voltage modulation. The torque error, difference between reference torque and actual torque is compared with the flux error, and then the angle of stator voltage vector is adjusted according to the ratio of both errors in order to reduce the torque and flux ripples together. The magnitude of voltage vector is determined on the synchronous frequency of PWM inverter. The proposed strategy of DSC is validated by simulation study
Keywords :
DC-AC power convertors; PWM invertors; adaptive control; control system analysis; control system synthesis; induction motor drives; machine control; machine theory; self-adjusting systems; stators; switching circuits; torque control; variable speed drives; velocity control; PWM inverter; actual torque; control design; control simulation; direct self control strategy; flux error; flux ripples; induction motor drives; reference torque; ripple components minimisation; space voltage modulation; stator voltage vector angle; switching frequency constant; synchronous frequency; torque error; torque´ ripples; Hysteresis motors; Induction machines; Induction motor drives; Pulse width modulation inverters; Sampling methods; Stators; Switching frequency; Synchronous motors; Torque control; Voltage control;
Conference_Titel :
Science and Technology, 2001. KORUS '01. Proceedings. The Fifth Russian-Korean International Symposium on
Conference_Location :
Tomsk
Print_ISBN :
0-7803-7008-2
DOI :
10.1109/KORUS.2001.975084
