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JEET, Vol. 12, No. 5, September 2017
Improved FOC of IPMSM using Finite-state Model Predictive Current Control for EV
Chung-Yuen Won
Area B - Electric Machinery and Power Electronics
Abstract Interior permanent magnet synchronous motor (IPMSM) is most commonly used in the automotive industry as a traction motor for electric vehicle (EV). In electric vehicle, the torque output rapidly changes according to the operation of the accelerator and the braking of the driver. The transient torques are thus generated very frequently in accordance with the variable speed control of the driver. Therefore, in this paper, a method for improving the torque response in the transient states of IPMSM is proposed. In order to complement the disadvantages of the conventional PI current controller in the field oriented control (FOC), the finite-state model predictive current control and 2DLUT is applied to improve the torque response at the torque transient period. Simulation and experiment results are given to verify the reliability of the proposed method.
Keyword AC motor drive,Predictive control,Torque control,Current control,Electric vehicle
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