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In order to bridge the relational gap existing between control algorithm, driving circuit, rotor and bearing, a numerical algorithm for micro mechatronics simulation is developed for HDD spindle motors. The influences of PWM modes and driving circuit parameters on startup characteristics are investigated to demonstrate the importance of the proposed method.
This paper presents the utilization of sensorless position control technology by PWM high-frequency injection for SynRM, one possible structure of SynRM applied to sensorless control and two different winding connections of SynRM as well as experimental test and FEA of phase inductance. The theoretical analysis indicates obvious influence of phase inductance wave on position signal estimation when...
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