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In this paper, a method to obtain high efficiency at low speed region of permanent magnet motor with redundant structure is suggested. The output power of large permanent magnet motor like ship propulsion system varies very much as the speed changes. At low speed region, the output power of the motor is very much smaller than that of high speed region and the efficiency decrease also. In order to...
This document describes the implementation of the model predictive direct torque control (MPDTC) algorithm for the control of three-phase induction motor drives comprising a three-level dc-link inverter with an output LC filter. As the filter introduces delays in the system, the motor torque and flux are no longer directly controllable. Therefore the inverter torque and flux are introduced and the...
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