Current sensor fault diagnosis and adaptive fault-tolerant control of PMSM drive system based on differential algebraic method
Current sensor fault diagnosis and adaptive fault-tolerant control of PMSM drive system based on differential algebraic method
复制标题
基于微分代数法的PMSM驱动系统电流传感器故障诊断与自适应容错控制
DOI：
10.3233/jae-160090
复制
发表时间：
2017-01-01
影响因子：
0.6
通讯作者：
Wang, Ping
中科院分区：
文献类型：
--
作者：
Li, Hongmei;Yao, Hongyang;Wang, Ping
电流传感器作为电动汽车永磁同步电机（PMSM）驱动系统的关键传感器，通常会发生增益和失调故障，其故障将直接影响PMSM驱动系统的性能和稳定性。为此，首先研究了考虑寄生电容效应的逆变器非线性死区补偿方法，并与传统死区补偿方法进行了比较，实验结果验证了该方法的技术优势，巧妙地解决了逆变器非线性引起的逆变器参考电压与输出电压之间的失调电压对电流传感器故障诊断精度的影响。然后，提出了基于微分代数的故障诊断方法和自适应容错控制策略。将死区补偿方法、基于微分代数的故障诊断方法和自适应容错控制策略相结合，提出了永磁同步电机驱动系统的综合解决方案。最后，通过系统仿真和dSPACE实验验证了所提出的PMSM驱动系统集成方案的可行性和有效性，并给出了结论。
As the key sensor of Electric Vehicle Permanent Magnet Synchronous Machine (PMSM) drive system, the current sensor usually occurs gain and offset fault, and the fault will directly affect the performance and stability of PMSM drive system. Therefore, the inverter nonlinearity dead-time compensation method is first investigated allowing for parasitic capacitor effect, and the proposed method are compared with the traditional dead-time compensation method, moreover, the technical advantages are all validated via experimental results, the fault diagnosis accuracy problem of current sensor caused by the inverter nonlinearity induced offset voltage between inverter reference and output voltage are cleverly solved. Then, the differential algebraic based fault diagnosis method and adaptive fault-tolerant control strategy are presented. An integrated solution of PMSM drive system is innovatively proposed integrated the proposed dead-time compensation method with proposed differential algebraic based fault diagnosis method and adaptive fault-tolerant control strategy together. At last, system simulation and dSPACE based experimental test are implemented to validate the feasibility and effectiveness of proposed integrated solution of PMSM drive system and the conclusions are shown.