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Application issues for PWM adjustable speed AC motor drives

1996; Institute of Electrical and Electronics Engineers; Volume: 2; Issue: 5 Linguagem: Inglês

10.1109/2943.532149

1558-0598

Annette von Jouanne, Prasad Enjeti, W. Gray,

Low-power high-performance VLSI design

In this article, some application issues for adjustable speed AC motor drives have been investigated. The effects of high PWM frequency, or high dv/dt on the motor terminal voltages and bearing currents have been addressed and explained. Mitigation techniques have been shown to significantly reduce the transient peak voltage and dv/dt at the motor terminals, as well as within the motor windings. This reduction contributes to improved reliability of PWM motor drive systems.