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The analysis of PMSMs shows that electromagnetic torque is proportional to the angle between the stator and rotor flux linkages and therefore fast torque response can be obtained by increasing the rotating speed of the stator flux linkage as fast as possible. The implementation of DTC in PMSM drives is discussed. A new DTC controller combining space vector modulation (SVM) technique, a torque regulator...
Classical direct torque control (DTC) for permanent magnet synchronous motor (PMSM) has some drawbacks of more torque/flux ripples, and variable switching frequency. On the basis of an analysis of surface mounted PMSM, a novel DTC method combining space vector modulation (SVM) technique, a torque regulator with variable proportional coefficient, and a reference voltage generator with the compensation...
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