High Performance Control for SVPWM Inverter-Fed Induction Motor with Core Loss Consideration

Mohammad Abdul Mannan

Abstract


The actual flux and torque of a field-orientated control (FOC) induction (IM) differ from the reference flux and torque due to the effects of core loss. Thus, it is desirable to design a controller to achieve desired speed and flux taking core loss into account. Moreover, it is also desirable to design an observer to estimate states of IM properly since the states of IM are increased with consideration of core loss. Therefore, in this paper speed and flux controller, and a full-order observer for space vector pulse width modulation (PWM) inverter-fed IM taking core loss into account are designed based on discrete-time proportional and integral (PI) controller. The effectiveness of proposed discrete-time PI controller and observer systems are verified by simulation. The simulation results confirmed that the proposed controller can properly track the reference speed and flux and the proposed observer can properly estimate the state quantities of IM taking core loss into account.

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