基于无电感升压拓扑的无刷直流电机电流控制策略  

Current Control Strategy of Brushless DC Motor Based on Non-Inductive Boost Topology

作　　者：曹彦飞 陆海天 李新旻 史婷娜 Cao Yanfei;Lu Haitian;Li Xinmin;Shi Tingna(Zhejiang Provincial Key Laboratory of Electrical Machine Systems School of Electrical Engineering Zhejiang University,Hangzhou 310027 China;School of Electrical and Information Engineering Tianjin University,Tianjin 300072 China;School of Electrical Engineering and Automation Tiangong University,Tianjin 300387 China)

机构地区：[1]浙江大学电气工程学院浙江省电机系统智能控制与变流技术重点实验室,杭州310027 [2]天津大学电气自动化与信息工程学院,天津300072 [3]天津工业大学电气工程与自动化学院,天津300387

出　　处：《电工技术学报》2021年第6期1249-1258,共10页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51807141);天津市自然科学基金(18JCQNJC74200);博士后创新人才支持计划(BX20200289)资助项目。

摘　　要：该文利用MOSFET、二极管和电容设计一种结构简单的升压拓扑结构,用以驱动无刷直流电机。该结构无需电感,有利于减小驱动系统的成本与体积。结合升压拓扑的输出方式与无刷直流电机的运行方式,该文构建保证驱动系统正常工作的四种开关矢量,并进一步提出一种基于升压拓扑的无刷直流电机电流控制策略。在无刷直流电机的换相区及非换相区,通过选择合适的矢量作用即可实现平稳的电流控制。此外,在换相区采用统一的控制方式可以有效地抑制换相转矩波动,无需根据转速区间切换控制策略。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.

关 键 词：无刷直流电机 升压拓扑 电流控制 换相转矩波动 

分 类 号：TM33[电气工程—电机]