Power electronics converters have been widely used in aerospace system, DC transmission, distributed energy, smart grid and so forth, and the reliability of power electronics converters has been a hotspot in academia and industry. It is of great significance to carry out power electronics converters open-circuit faults monitoring and intelligent fault diagnosis to avoid secondary faults, reduce time and cost of operation and maintenance, and improve the reliability of power electronics system. Firstly, the faults features of power electronic converters are analyzed and summarized. Secondly, some AI-based fault diagnosis methods and application examples in power electronics converters are reviewed, and a fault diagnosis method based on the combination of random forests and transient fault features is proposed for three-phase power electronics converters. Finally, the future research challenges and directions of AI-based fault diagnosis methods are pointed out.

本研究主要针对电力电子转换器故障监测和智能故障诊断，通过分析故障特征，并结合随机森林和瞬变故障特征等方法，提出了针对三相电力电子转换器的故障诊断解决方案，并探讨了未来的研究方向和挑战。

功率电子变换器基于人工智能的开路故障诊断方法综述