A Novel Drive Method for High-Speed Brushless DC Motor Operating in a Wide Range

被引:72
作者
Cui, Chenjun [1 ]
Liu, Gang [1 ]
Wang, Kun [1 ]
机构
[1] Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing 100191, Peoples R China
关键词
Brushless DC (BLDC) motor; commutation delay; drive method; high-speed; pulse-amplitude modulation (PAM); TORQUE CONTROL; MODULATION TECHNIQUE; LOSS-REDUCTION; BLDCM DRIVES; POSITION; SYSTEM;
D O I
10.1109/TPEL.2014.2361752
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, a novel drive method, which is different from the traditional motor drive techniques, for high-speed brushless DC (BLDC) motor is proposed and verified by a series of experiments. It is well known that the BLDC motor can be driven by either pulse-width modulation (PWM) techniques with a constant dc-link voltage or pulse-amplitude modulation (PAM) techniques with an adjustable dc-link voltage. However, to our best knowledge, there is rare study providing a proper drive method for a high-speed BLDC motor with a large power over a wide speed range. Therefore, the detailed theoretical analysis comparison of the PWM control and the PAM control for high-speed BLDC motor is first given. Then, a conclusion that the PAM control is superior to the PWM control at high speed is obtained because of decreasing the commutation delay and high-frequency harmonic wave. Meanwhile, a new high-speed BLDC motor drive method based on the hybrid approach combining PWM and PAM is proposed. Finally, the feasibility and effectiveness of the performance analysis comparison and the new drive method are verified by several experiments.
引用
收藏
页码:4998 / 5008
页数:11
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