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PM motor drive systems are widely used for industrial drives. However, PM motors basically produce the torque ripple due to the fluctuation of the magnetic field distribution. Dead time of the inverter, offset of sensors and current measurement errors lead to the torque ripple, too. The torque ripple leads vibration noises. In this paper, we proposed a torque ripple suppression method based on perfect...
This paper describes the FEM analysis of positioning systems using segment type surface PMSM. The systems are simulated by using FEM taking into account the motion equation of the motor drive. The transient phenomena of positioning system are strictly analyzed by considering the cogging torque of PMSM. In addition, the effect of the step response of positioning system on field weakening control of...
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