Current Control Strategy of Brushless DC Motor Based on Non-Inductive Boost Topology
Cao Yanfei1, Lu Haitian2, Li Xinmin3, Shi Tingna1
1. Zhejiang Provincial Key Laboratory of Electrical Machine Systems School of Electrical Engineering Zhejiang University Hangzhou 310027 China; 2. School of Electrical and Information Engineering Tianjin University Tianjin 300072 China; 3. School of Electrical Engineering and Automation Tiangong University Tianjin 300387 China
Abstract：In this paper, a Boost topology is designed using MOSFETs, diodes and capacitors. This structure does not require inductors, which is beneficial to reduce the cost and volume of the drive system. Combined the output mode of Boost topology with the operation mode of brushless DC motor (BLDCM), four switching vectors are constructed to ensure the normal operation of the drive system, and a current control strategy of BLDCM based on Boost topology is further proposed. In commutation period and non-commutation period of BLDCM, current control can be realized by selecting the appropriate vector. In addition, in the commutation period, a unified control method can be used to suppress the commutation torque ripple without switching control strategies according to the speed range.
曹彦飞, 陆海天, 李新旻, 史婷娜. 基于无电感升压拓扑的无刷直流电机电流控制策略[J]. 电工技术学报, 2021, 36(6): 1249-1258.
Cao Yanfei, Lu Haitian, Li Xinmin, Shi Tingna. Current Control Strategy of Brushless DC Motor Based on Non-Inductive Boost Topology. Transactions of China Electrotechnical Society, 2021, 36(6): 1249-1258.
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2021, Vol. 36 
