Current control of IPMSM to avoid voltage saturation for changing frequency and amplitude of vibration torque reference

This paper presents the vibration torque control an IPMSM to avoid the output voltage saturation of the inverter in order to reduce the copper loss. The proposed control of the vibration torque has the feedforward control for fast response of the reference torque change and the feedback control for the parameter error compensation. The effectiveness of proposed control method has been verified by experiments.