基于DFPMM的位置传感器故障诊断与容错控制  

Fault diagnosis and fault tolerant control of position sensor based on DFPMM

作　　者：李洁[1] 黄文新[1] 蔡一鸣 王思远 高宇飞 蒋雪峰 LI Jie;HUANG Wenxin;CAI Yiming;WANG Siyuan;GAO Yufei;JIANG Xuefeng(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]南京理工大学自动化学院,南京210094

出　　处：《航空学报》2024年第10期260-271,共12页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51807094)。

摘　　要：双绕组永磁容错电机驱动系统因其高可靠性和强容错性等优点应用前景广阔。位置传感器在面对复杂环境时可能出现断线、卡死和偏移故障,会导致系统的调速性能下降、电机运行异常等问题。传统三相永磁电机系统故障诊断时常采用单一位置估计参考值比较判断的方法,在观测器估计的位置参考值出现偏差时,容易发生误判断问题,从而严重影响系统的稳定性。结合双绕组永磁容错电机的特点,基于滑模观测器通过2套绕组数据,提出一种新的基于滑模观测器的双绕组永磁容错电机位置传感器故障诊断与容错控制方法,理论和仿真实验结果表明:该故障诊断与容错控制方法解决了传统方法因单一估计参考值易引起误判断的问题,能够对系统位置传感器的断线、卡死和偏移故障进行有效诊断与容错运行,提升了系统的可靠性。Dual-winding Fault-tolerant Permanent Magnet Motor(DFPMM)drive system has broad prospects due to its high reliability and strong fault tolerance.For the position sensor,there may be disconnection faults,stuck faults and offset faults.Any kind of position sensor failure will lead to the decline of speed regulation performance and abnormal operation of motor.For the traditional three-phase permanent magnet motor system fault diagnosis,the single position reference value is often used for comparison and judgment.When the position reference value estimated by the observer is deviated,it is easy to have misjudgment problems,which will seriously affect the stability of the system.In this paper,based on the characteristics of DFPMM and sliding mode observer,two position reference values are estimated by using two sets of winding data,and a new DFPMM position sensor fault diagnosis and fault-tolerant control method is proposed.The problem of misjudgment caused by the comparison of single reference value in traditional methods is solved.Theoretical analysis,simulation research and experimental verification show that the diagnosis strategy and fault tolerant control strategy can effectively improve the system performance after fault of position sensor,and further improve the reliability of the system.

关 键 词：容错电机 位置传感器 故障诊断 容错控制 滑模观测器 

分 类 号：V242.4[航空宇航科学与技术—飞行器设计]