Space vector modulated direct torque control for PMSM

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Abstract

It always exists that there are big ripples on flux linkage and electromagnet torque in traditional direct torque control (DTC) system. The implement of space vector modulation (SVM) was researched in-depth. The optimum combination of the fundamental voltage space vector was obtained according to the current expected voltage vector so as to compensate the error of stator flux linkage and electromagnet torque in precise. Inverter switch frequency is ensured constant by space voltage vector modulation at the same time. SVM direct torque control for permanent magnet synchronous motor (PMSM) was realized. Simulation results have shown that rapid torque response of DTC is still maintained, ripples on flux linkage and torque are dramatically reduced. The dynamic and static system performances are dramatically improved. © 2011 Springer-Verlag Berlin Heidelberg.

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Liu, Y. (2011). Space vector modulated direct torque control for PMSM. Advances in Intelligent and Soft Computing, 105, 225–230. https://doi.org/10.1007/978-3-642-23756-0_37

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