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김용휴(Yong-Hyu Kim),박성준(Sung-Jun Park),정준형(Jun-Hyung Jung),김동윤(Dong-Youn Kim),김장목(Jang-Mok Kim) 전력전자학회 2015 전력전자학회 논문지 Vol.20 No.2
This paper proposes a regeneration braking algorithm for Brushless DC (BLDC) motor system. The unipolar switching method has a limitation about the regeneration braking when the BLDC motor is operated in the low speed region. The proposed algorithm alternatively utilizes the unipolar and bipolar switching method to implement the regeneration braking for overall speed range. The bipolar switching method is used when the BLDC motor is operated in the low speed region. The switching transition point is determined by analyzing the unipolar and bipolar switching during the regeneration braking. The effectiveness of proposed algorithm is verified by using the experimental results.