Current Sensor Fault Diagnosis Based on Sliding Mode Observer for Permanent Magnet Synchronous Traction Motor
Current Sensor Fault Diagnosis Based on Sliding Mode Observer for Permanent Magnet Synchronous Traction Motor
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DOI：
10.1109/isie.2018.8433824
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发表时间：
2018-06
期刊：
影响因子：
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通讯作者：
Gang Huang;E. F. Fukushima;Jinhua She;Changfan Zhang
中科院分区：
文献类型：
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作者：
Gang Huang;E. F. Fukushima;Jinhua She;Changfan Zhang
针对永磁同步电机(PMSM)转矩控制系统，提出了一种基于滑模观测器的电流传感器故障检测方法。在dq坐标下构造电流最小二乘观测器，生成αβ轴电流传感器的故障残差，根据残差与相电流传感器故障的关系和故障诊断规则，实现对ABC型相电流传感器故障的在线诊断。所设计的观测器结构简洁，理论推导和稳定性证明过程都很简单。仿真和实验结果证明了该方法的可行性和有效性。
This paper presented a current sensor fault detection method based on sliding mode observer (SMO) for closed-loop torque control system of permanent magnet synchronous motor (PMSM). A current SMO is constructed in dq coordinate to generate fault residuals of αβ axis current sensors, then online diagnosis of abc phase current sensor fault is realized based on relationship between the residuals and the phase current sensors faults, and fault diagnosis rules. Structure of the designed observer is concise, the theoretical derivation and the process of stability proof are all simple. Simulation and experimental results demonstrate the feasibility and effectiveness of the method.