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Synchronous optimal pulse width modulation (SO- PWM) techniques provide an appropriate solution to the increasing demand on very low switching frequencies of power semiconductors, in order to reduce switching losses. The shape of their pulse patterns is offline computed, and the modulation techniques assume a steady state operation of the drive system. Medium voltage drives when applied to the retrofit...
To meet the increasing demand on very low switching frequencies of power semiconductors in order to reduce switching losses, synchronous optimal pulsewidth modulation (SO-PWM) techniques provide an appropriate solution. They result from offline calculations, assuming steady state operation of the drive system. These drives are often used with an LC output filter, which represents a resonant circuit...
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