[1]林辉,张希.基于有限状态机的电机霍尔传感器故障诊断与补偿策略[J].东南大学学报(自然科学版),2019,49(6):1054-1063.[doi:10.3969/j.issn.1001-0505.2019.06.006]
 Lin Hui,Zhang Xi.Finite state machine based fault diagnosis and compensation strategy of motors with Hall sensors[J].Journal of Southeast University (Natural Science Edition),2019,49(6):1054-1063.[doi:10.3969/j.issn.1001-0505.2019.06.006]
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基于有限状态机的电机霍尔传感器故障诊断与补偿策略()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第6期
页码:
1054-1063
栏目:
电气工程
出版日期:
2019-11-20

文章信息/Info

Title:
Finite state machine based fault diagnosis and compensation strategy of motors with Hall sensors
作者:
林辉张希
西北工业大学自动化学院, 西安 710129
Author(s):
Lin Hui Zhang Xi
School of Automation, Northwestern Polytechnical University, Xi’an 710129, China
关键词:
永磁无刷电机 霍尔位置传感器 故障诊断 补偿策略 有限状态机 超螺旋观测器
Keywords:
brushless permanent magnet motor Hall position sensor fault diagnosis compensation strategy finite state machine(FSM) super-twisting algorithm(STA)based observer
分类号:
TM351
DOI:
10.3969/j.issn.1001-0505.2019.06.006
摘要:
针对在复杂工况下运行的永磁无刷电机霍尔位置传感器故障,提出了基于有限状态机的故障诊断方法.该方法可准确区分正常霍尔信号、故障霍尔信号以及反向霍尔信号,并将有限状态机与设计的超螺旋转速观测器相结合,实现了对发生在任意扇区内霍尔位置传感器故障的实时检测.在此基础上,设计了霍尔信号补偿控制器,利用正常霍尔传感器与转速观测器的估计转速生成补偿霍尔信号,使电机能在单个或2个霍尔位置传感器故障时,仍能保持稳定运行,并减小了故障引起的性能波动.最后,利用永磁无刷电机实验平台对所提控制策略进行了验证.实验结果表明,所提故障诊断方法能及时检测出霍尔传感器故障,后续的补偿控制策略也能保证故障后电机的平稳运行.
Abstract:
A fault diagnosis method based on the finite state machine(FSM)is proposed for the Hall sensor failure of brushless permanent magnet motors under complicated conditions. The method can distinguish normal Hall signals, fault Hall signals, and reverse Hall signals accurately. The detection of the Hall sensor fault in any sector is realized by combining the FSM with a super-twisting algorithm(STA)based speed observer. Under fault situations, a Hall signal compensation controller is designed. The compensation signals are generated by using the estimated speed of the speed observer and the normal Hall sensor signals. Thus, the motor can keep running well when one or two Hall sensors fail, and the performance fluctuation caused by the failure of Hall sensor can be reduced. Finally, the fault diagnosis method and compensation strategy are verified in experiments. The experimental results show that the proposed fault diagnosis method can detect the Hall sensor fault whenever it happens, and the compensation strategy can ensure the stable operation of a motor under Hall sensor failure situations.

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备注/Memo

备注/Memo:
收稿日期: 2019-06-21.
作者简介: 林辉(1957—),男,博士,教授,博士生导师,linhui@nwpu.edu.cn.
基金项目: 国家自然科学基金面上资助项目(51777170)、陕西省自然科学基础研究计划资助项目(2019JM-462).
引用本文: 林辉,张希.基于有限状态机的电机霍尔传感器故障诊断与补偿策略[J].东南大学学报(自然科学版),2019,49(6):1054-1063. DOI:10.3969/j.issn.1001-0505.2019.06.006.
更新日期/Last Update: 2019-11-20