Modified induction motor drive speed control strategies for loss reduction and efficiency enhancement

Induction motor speed control strategies for loss reduction and efficiency enhancement are presented. Induction motor equivalent circuit models for efficiency enhancements were utilized to study the steady-state analysis of speed control of three-phase induction motors. The harmonic effects of nonsinusoidal supply voltages and the nonlinear variation of the magnetizing reactance as a function of magnetizing current were also considered in the loss evaluation models.<
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