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This paper proposes microstepping via a proximate in-phase current estimator (PIpCE) to improve position control performance with reduced torque ripples in permanent-magnet (PM) stepping motors. In conventional microstepping control, low-pass filters (LPFs) are used to filter out measurement noise resulting from the implemented current feedback loops. However, the phase lag caused by LPFs can degrade...
In this paper, PID controller with feedforward low pass Alters (FLPFs) is developed to guarantee desired currents for a permanent magnet stepper motor (PMSM). The proposed method consist of position controller and FLPFs. The position controller consists of a PID controller, a commutation scheme, and a Lyapunov based controller. To generate the desired torque, the PID controller is incorporated. Commutation...
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