Predictive Torque Control for Inverter-Fed Induction Machines

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<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> This paper presents a predictive control scheme that is suitable for the torque and flux control of multilevel inverter-fed induction machines. The control strategy combines the use of a proportional–integral controller to obtain good steady-state behavior and a predictive controller to achieve fast dynamic torque response. In this way, torque and stator flux references can be reached within one sample period. With the use of multilevel space phasor modulation, low torque and flux ripple are possible with fixed sample rate. Experimental and simulation results are presented in order to demonstrate the effectiveness of the proposed strategy. </para>