A design of high-precision BLDCM drive with bus voltage protection

Xuezheng Lian; Haitao Wang; Meilin Xie; Wei Huang; Dawei Li; Feng Jing

doi:10.1117/12.2286416

15 November 2017 A design of high-precision BLDCM drive with bus voltage protection

Xuezheng Lian, Haitao Wang, Meilin Xie, Wei Huang, Dawei Li, Feng Jing

Proceedings Volume 10605, LIDAR Imaging Detection and Target Recognition 2017; 1060510 (2017) https://doi.org/10.1117/12.2286416
Event: LIDAR Imaging Detection and Target Recognition 2017, 2017, Changchun, China

Abstract

In the application of space satellite turntable, the design of balance wheel is very necessary. To solve the acquisition precision of Brushless DC motor speed is low, and the encoder is also more complex, this paper improves the original hall signal measurement methods. Using the logic device to achieve the six frequency multiplication of hall signal, the signal is used as speed feedback to achieve speed closed-loop control and improve the speed stability. At the same time, in order to prevent the E.M.F of BLDC motor to raise the voltage of the bus bar when reversing or braking, and affect the normal operation of other circuit modules, the analog circuit is used to protect the bus bar voltage by the way of energy consumption braking. The experimental results are consistent with the theoretical design, and the rationality and feasibility of the frequency multiplication scheme and bus voltage protection scheme are verified.

Citation Download Citation

Xuezheng Lian, Haitao Wang, Meilin Xie, Wei Huang, Dawei Li, and Feng Jing "A design of high-precision BLDCM drive with bus voltage protection", Proc. SPIE 10605, LIDAR Imaging Detection and Target Recognition 2017, 1060510 (15 November 2017); https://doi.org/10.1117/12.2286416

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