基于FMEA和模糊TOPSIS的波浪能发电装置风险评估方法  

Risk Assessment Method of Wave Energy Converter Based on FMEA and Fuzzy TOPSIS

作　　者：李蒙[1] 王海峰[1] 汪小勇[1] 段云棋[1] 崔琳[1] LI Meng;WANG Haifeng;WANG Xiaoyong;DUAN Yunqi;CUI Lin(National Ocean Technology Center,Tianjin 300112,China)

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《船舶工程》2023年第1期6-16,共11页Ship Engineering

基　　金：国家重点研发计划项目“波浪能、潮流能技术综合评估方法合作研究”(2019YFE0102500)。

摘　　要：波浪能发电装置结构复杂,运行环境恶劣,易受到风浪冲击和海水长期浸泡腐蚀的威胁,对装置进行可靠性分析时面临系统故障模式复杂、故障记录少等问题,海洋工程领域传统的故障模式及影响分析(FMEA)方法难以对装置系统的风险进行准确评价。基于模糊逼近理想排序法(TOPSIS)提出一种改进的FMEA风险评价模型,采用模糊置信结构对评价因素进行表示,引入评价因素的权重概念,建立风险性能指标的加权规范化矩阵,利用TOPSIS逼近理想解的原理进行风险排序,得到风险优先数,并以浮力摆式波浪能装置为例进行分析,结果表明俘获系统对波浪能发电装置整体的可靠性影响最为显著。Wave energy generator has complex structure and bad operating environment, and is vulnerable to the threat of wind and wave impact and long-term immersion corrosion of seawater. The reliability analysis of the device is faced with the problems of complex system fault mode and few fault records. The traditional failure mode and effects analysis(FMEA) method in the field of marine engineering is difficult to accurately evaluate the risk of the device system. An improved FMEA risk evaluation model is proposed based on the fuzzy TOPSIS method. The fuzzy confidence structure is used to represent the evaluation factors, the concept of weight of evaluation factors is introduced, the weighted normalization matrix of the risk indicator evaluation is used to approximate the ideal solution by TOPSIS to rank the risks and obtain the risk priority number, and taking the buoyancy pendulum wave energy converter as an example, the results show that the capture system has the most significant impact on the overall reliability of the wave energy converter.

关 键 词：波浪能发电装置 故障模式及影响分析(FMEA) 逼近理想解排序法(TOPSIS) 风险评估 

分 类 号：P742[天文地球—海洋科学]