브러시리스 직류전동기의 전환에 의한 전류 맥동 저감에 관한 연구

A Study on Reduction of Current Ripple due to Commutation in Brushless DC motor

This paper presents a novel current control method to reduce the current ripple due to commutation in brushless DC motor fed with unipolar PWM voltage source inverter. The proposed current control method can reduce the current ripple due to commutation in high speed range where the DC link voltage of the inverter is less than four times of the phase back-emf. The effectiveness of the proposed current control method is verified with digital simulations and experiments on the 250W brushless DC motor drive systems.

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