Reliable fault-diagnosis is essential to the induction motor drive systems in some special applications. In this article, we present a simple and robust fault-diagnosis scheme for three-phase induction motor drive systems. As the proposed fault-diagnosis method is based on the framework of model predictive control, many shared data can be fully utilized, and the computation burden is greatly reduced. To improve the robustness of fault detection, a moving integration filter-based residuals' construction method is proposed, which reduces both the false alarms rate and the rate of missed detection. According to the order of the constructed residuals and the sign of current errors, it is easy to accomplish the task of fault isolation. Experimental results are presented to demonstrate the effectiveness of the proposed fault-diagnosis method.

中文翻译：

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基于动积分滤波器的三相感应电机驱动系统开路开关故障诊断方法


在某些特殊应用中，可靠的故障诊断对于感应电机驱动系统至关重要。在本文中，我们提出了一种简单而强大的三相感应电机驱动系统故障诊断方案。由于所提出的故障诊断方法基于模型预测控制框架，可以充分利用许多共享数据，并且大大减轻了计算负担。为了提高故障检测的鲁棒性，提出了一种基于移动积分滤波器的残差构造方法，降低了误报率和漏检率。根据构造的残差的顺序和电流误差的符号，很容易完成故障隔离的任务。实验结果证明了所提出的故障诊断方法的有效性。