Real-time open-switch fault diagnosis in automotive permanent magnet synchronous motor drives based on Kalman filter

控制理论(社会学) 断层(地质) 汽车工程 故障检测与隔离 扩展卡尔曼滤波器 扭矩 控制工程 永磁电动机 转子(电动) 永磁同步电动机 电动汽车
作者
Farshid Naseri,Erik Schaltz,Kaiyuan Lu,Ebrahim Farjah
出处
期刊:Iet Power Electronics [Institution of Engineering and Technology]
卷期号:13 (12): 2450-2460 被引量:5
标识
DOI:10.1049/iet-pel.2019.1498
摘要

This study proposes an effective diagnosis method for single and multiple open-switch faults (OSFs) in three-phase permanent magnet synchronous motor (PMSM) drives. The proposed method is based on the real-time estimation of the three-phase motor currents using three Kalman filters (KFs). Three residual signals are defined as the differences between the three-phase measured and estimated stator currents. The averaged normalised residual signals are used as diagnostic criteria for the detection of OSFs. The proposed method accurately detects the OSFs, localises the faulty switches and effectively discriminates between the OSFs and current sensor faults. The main superiorities of the proposed KF-based method are its fast detection time and high robustness to measurement noises/errors and load variations. Moreover, the proposed method is useful for both closed-loop and open-loop PMSM drives. The proposed method can be embedded as a subroutine in the drive control unit without any hardware extension. The effectiveness of the proposed method is confirmed through extensive simulations and several hardware-in-the-loop experiments on a testbed with a 1.5 kW PMSM and dSPACE1104 control board. In addition, the real-time feasibility of the proposed method using low-cost microprocessor technology is guaranteed by testing it on TMS320F28335 from Texas Instruments © .
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