Sensor Fault Detection, Localization, and System Reconfiguration with a Sliding Mode Observer and Adaptive Threshold of PMSM
Sensor Fault Detection, Localization, and System Reconfiguration with a Sliding Mode Observer and Adaptive Threshold of PMSM
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DOI：
10.6113/jpe.2016.16.3.1012
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发表时间：
2016-05-01
影响因子：
1.4
通讯作者：
Madjid, Kidouche
中科院分区：
文献类型：
--
作者：
Abderrezak, Aibeche;Madjid, Kidouche
针对由三相AC/DC/AC变换器和三相永磁同步电机（PMSM）驱动器组成的电气系统驱动器，提出了一种在线软件故障检测、定位和系统重构方法。电流传感器故障（断电）、速度/位置传感器丢失（断开）和直流链路电压传感器损坏均视为故障。PMSM驱动系统中这些故障的发生降低了系统性能，并影响电气系统驱动的安全性、维护和服务连续性。所提出的方法是基于“abc”电流，直流链路电压和转子速度/位置的监测信号，使用测量链。所列出的信号进行分析和评估与生成的残差和阈值从滑模电流速度直流电压观测器（SMCSVO）获得在线故障决策。该方法的新奇在于采用了SMCSVO和自适应阈值相结合的故障诊断算法，从而减少了虚警次数，保证了故障检测系统的可靠性和鲁棒性。此外，还使用dSPACE DS 1104数字信号处理器板对该算法的性能进行了实验分析和真实的实时测试。
This study deals with an on-line software fault detection, localization, and system reconfiguration method for electrical system drives composed of three-phase AC/DC/AC converters and three-phase permanent magnet synchronous machine (PMSM) drives. Current sensor failure (outage), speed/position sensor loss (disconnection), and damaged DC-link voltage sensor are considered faults. The occurrence of these faults in PMSM drive systems degrades system performance and affects the safety, maintenance, and service continuity of the electrical system drives. The proposed method is based on the monitoring signals of "abc" currents, DC-link voltage, and rotor speed/position using a measurement chain. The listed signals are analyzed and evaluated with the generated residuals and threshold values obtained from a Sliding Mode Current-Speed-DC-link Voltage Observer (SMCSVO) to acquire an on-line fault decision. The novelty of the method is the faults diagnosis algorithm that combines the use of SMCSVO and adaptive thresholds; thus, the number of false alarms is reduced, and the reliability and robustness of the fault detection system are guaranteed. Furthermore, the proposed algorithm's performance is experimentally analyzed and tested in real time using a dSPACE DS 1104 digital signal processor board.