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In this paper the implementation of the vector control systems for a variable-speed 4088kW PMSM (Permanent Magnet Synchronous Motor)in ship electric propulsion systems has been studied. At the basis of analysis of the mathematical model of the PMSM and the principle of vector control, two methods for modeling and simulating of PMSM system based on the Current Hystersis PWM (Pulse Width Modulation)...
Direct Torque Control (DTC) is a new technique to obtain the higher control features in the AC machines. The torque ripple is the inherent features since the bang-bang control method is adopted in DTC system. In order to decrease the torque ripple in permanent magnet synchronous motor (PMSM) with the large capacity, the regional interpolation algorithm of zero voltage vectors is proposed and the practical...
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