Magnetically Coupled Resonant Wireless Power Transmission System: A Review of Fault Diagnosis Methods

Wireless power transmission (WPT) technology is rapidly evolving and promising. However, its system is prone to fault due to aging and failure of power electronic devices, so the study of effective fault diagnosis and prediction methods is crucial for stable operation of the system. In this paper, the external aging output characteristics of typical devices in WPT system are firstly introduced. Secondly, the existing fault diagnosis methods of WPT system and the typical power electronics fault diagnosis and prediction methods that can be learned from are reviewed, while the application of these methods in WPT system is evaluated. Finally, the future development trend of WPT fault diagnosis and prediction technology is outlooked.