화학공학소재연구정보센터
International Journal of Control, Vol.75, No.12, 901-909, 2002
Discrete time sliding mode, continuous time sliding mode and vector control of induction motors
Three control strategies are implemented and compared in this paper: vector control, continuous time sliding mode control and discrete time sliding mode control of an induction motor. The induction motor model used for control takes into account magnetizing inductance saturation and rotor resistance variation. While the magnetizing inductance is mapped to the operating conditions, the rotor resistance is estimated on-line. The motor is controlled with optimal efficiency flux. Flux weakening is employed above rated speed. Experimental results are drawn to show the advantages and disadvantages of the control methods.