风电变流器故障诊断方法及便携式平台设计

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关键词：风电变流器；嵌入式；模糊控制；故障诊断；鲁棒性

中图分类号：TM315 文献标志码：A 文章编号:1003-5168(2025)23-0023-04

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.23.004

Research on Fault Diagnosis Method for Wind Power Converters and Designof PortablePlatform

LIU YijiangFENG YunfengLIU Changsheng LI ZhenxingWANG Wei (CHNEnergyStar TechnologyCo.,Ltd.,Beijing1Oo8OO,China)

Abstract: [Purposes] The wind power converter is a key component in wind turbines for grid-connected operation.Due to its diverse fault types and complex operating environment,traditional detection methods often sufer from high misdiagnosis rates and poor adaptability in practical applications.To improve the accuracy and robustness of fault diagnosis,this paper designs an algorithm integrating fuzzy logic reasoning with a rule-tree decision mechanism.[Methods] The algorithm collcts key operational parameters in real time—such as bus voltage,current,temperature,and resistance—performs fuzzy processing on these data,and constructs a three-layer reasoning model of "fault feature - fuzzy state - diagnosis output" to achieve accurate fault identification.[Findings] The system was tested on 12O experimental samples,and results show that the fault recognition accuracy of the proposed algorithm reaches 98.7% ， demonstrating significant improvements in accuracy, efficiency,and robustness compared to traditional methods.[Conclusions] The results validate the engineering practicality and potential for widespread application of the proposed method in the intelligent operation and maintenance of wind power converters. Keywords: wind power converter; embedded; fuzzy control; fault diagnosis; robustness

0 引言

随着风电技术的不断发展与风电场规模的日益扩大，风电机组的运行可靠性已成为制约发电效率和降低运维成本的核心问题。（剩余5739字）