Wisconsin Alumni Research Foundation

Controller For Power Converter And Motor Driving Systems
WARF: P180332US01

Inventors: Robert Lorenz, Yang Xu, Chikara Morito

The Invention
A controller for a power convertor includes: a torque command value calculation module to calculate a first torque command value to a power convertor; a torque command limit module to receive the first torque command value and generate a second torque command value obtained by correcting the first torque command value so that the first torque command value is limited to a torque limiter range. The torque command limit module sets a width between the upper limit torque value and the lower limit torque value of the torque limiter range to be smaller as a fundamental wave output frequency of the power convertor increases at least in a speed region equal to or higher than a field weakening starting point.
For current licensing status, please contact Michael Carey at [javascript protected email address] or 608-960-9867