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This paper proposes a novel method of maximum power operation for permanent magnet synchronous motors in a direct torque control system. Torque limiting satisfying current limiting is based on the power equation instead of the motor model in the rotating d-q frame, which is synchronized to the rotor magnet. This method of torque limiting does not require the motor parameters to be determined and simplifies...
This paper examines the torque response based on direct torque control (DTC) for an interior permanent magnet synchronous motor (IPMSM). DTC with a PI controller for torque control is used in this study. The relationship between the gains of the PI controller and the torque response is derived based on the transfer function of the torque control loop. Also, this paper discusses the influence of the...
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