汪臻,周建武,范光辉,潘强,王建阳,顾浩

• 1:西安热工研究院有限公司
• 2:华能新疆能源开发有限公司
• 3:华能新疆能源开发有限公司清洁能源分公司

摘要(Abstract)：

故障模式与影响分析（FMEA）是辨识系统潜在故障模式，并评估其危害度的一种有效的可靠性分析方法。传统FMEA在分析过程中存在未考虑不同风险因素的权重、RPN对风险因素的变化敏感、难以处理专家主观评分信息以及未考虑故障模式间的传播影响关系等诸多缺陷。针对上述缺陷，提出了一种改进的FMEA方法。通过引入可靠性屋、粗糙集理论和理想点法来提高对故障模式危害度分析的准确性和客观性。相较于传统的FMEA，所提出的改进FMEA能够有效处理专家评分信息的主观性与不确定性问题，充分考虑了故障模式间的传播影响，能够在属性冲突及各种不确定性的情况下，对故障模式的风险等级进行排序。利用提出的改进FMEA对某型号风电机组的潜在故障模式进行了分析，获得了各故障模式的危害度排序以及各子系统的危害度排序。根据排序结果辨识出风电机组的可靠性薄弱环节和关键子系统，并给出各故障模式和各子系统的危害度权重，可为风电机组的可靠性优化设计提供数据支撑。

关键词(KeyWords)： 风电机组;故障模式与影响分析;可靠性屋;粗糙集理论;风险点辨识

Abstract:

Keywords:

基金项目(Foundation): 中国华能集团有限公司新疆公司本部管理创新服务项目（HN-6800-202200018-JSJF00001）;中国华能集团有限公司总部科技项目（HNKJ20-H72-02）~~

作者(Author): 汪臻,周建武,范光辉,潘强,王建阳,顾浩

DOI: 10.19666/j.rlfd.202305080

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