宁夏电力Issue(1)：55-61,7.DOI:10.3969/j.issn.1672-3643.2024.01.009
基于层次分析法与改进D-S理论的阀水冷系统状态评估
State evaluation of valve water cooling systems based on AHP and improved D-S evidence theory
摘要
Abstract
With the continuous increase in ultra-high voltage transmission levels and capacities,a significant challenge has emerged due to the sharp rise in heat generated during the operation of the converter valves in converter stations.This study aims to timely evaluate the operational status of valve water cooling systems to ensure the reliable operation of converter valves.Firstly,the study analyzes the overall composition of valve water cooling systems in converter stations,selecting key historical and real-time data indicators to construct an evaluation index system.Membership degrees for each indicator are determined using triangular and semi-trapezoidal functions as well as expert survey methods.Secondly,the research uses the analytic hierarchy process to determine the weights of various evaluation indicators.It develops a model for assessing the operational status of valve cooling systems based on an improved D-S evidence theory.Finally,the model is validated using data collected from key indicators of actual valve cooling systems in engineering projects.The evaluation results are compared using data from before and after cleaning the filter elements of the valve water cool-ing systems.The findings indicate that the established model can accurately identify and evaluate the operational status of the valve water cooling systems.It is beneficial for operating and maintenance personnel to timely manage the opera-tional status of the valve water cooling system and ensure its reliable operation.关键词
换流阀/状态评估/阀水冷系统/层次分析法/改进D-S证据理论Key words
converter valve/state evaluation/valve water cooling system/analytic hierarchy process/improved D-S evidence theory分类
信息技术与安全科学引用本文复制引用
杨群,齐鹏洋,李昊,刘钊..基于层次分析法与改进D-S理论的阀水冷系统状态评估[J].宁夏电力,2024,(1):55-61,7.基金项目
国网宁夏超高压公司科技创新项目(5229CG23000C) （5229CG23000C）
