Reliability analyses, condition monitoring and fault detection in wind generators.

电力电子转换器的可靠性和可用性对于海上风力发电系统至关重要，因为任何故障都可能导致功率输出减少和/或计划外的昂贵维护。对电力电子变流器的可靠性和失效模式进行了广泛的研究。然而，很少有人分析环境条件（如湿度和污染）对转换器在海上风力发电机等具有挑战性的环境中运行的可靠性的影响。该项目将对风力发电机系统中电力电子转换器的可靠性进行分析，分析常见故障机制，并识别包括热、热机械和环境在内的压力源。将研究状态监测解决方案，目的是检测组件的逐渐退化，估计剩余使用寿命并检测任何早期故障。

Reliability and Availability of power electronics converters are of significant importance for offshore wind generation systems as any faults can lead to a reduction of power output and/or unscheduled costly maintenance. Extensive studies have been published on the reliability and failure modes of power electronic converters. However, very few have analysed the effects of environmental conditions such as humidity and contamination on the reliability of converters operating in challenging environment such as those of offshore wind generators. The project will perform an analysis of the reliability of power electronics converters in wind generator systems with an analysis of common failure mechanisms and identification of stressors including thermal, thermo-mechanical and environmental. Condition monitoring solutions will be investigated with the aim of detecting the gradual degradation of components, estimate the remaining useful life and detect any incipient faults.