高电压技术2011，Vol.37Issue(12)：3028-3035,8.
架空输电线路覆冰状态评估模糊专家系统
Fuzzy Expert System for Condition Assessment of Overhead Transmission Line Icing
摘要
Abstract
Icing and snowing on overhead transmission lines in extremely cold climatic events is an enormous threat to the stability and safety of power system.To analyze the potential for damage to transmission line and tower as a result of icing events,we proposed a fuzzy expert system for condition assessment of overhead transmission line icing and snowing with characteristics of fuzziness and indefiniteness.According to the characteristic quantities for condition assessment,3 kinds of models,namely,the static mechanical load assessment model,the external insulation assessment model,and the conductor galloping assessment model,were established.And the condition assessment knowledge base corresponding to each assessment model was built based on test result,field data and expert knowledge.Furthermore,field data from China Southern Power Grid on-line monitoring and precaution system were used to test the effectiveness of the proposed fuzzy expert system.Test results reveal that the proposed fuzzy expert system is able to provide the most of monitoring data and the assessment result is reasonable,providing a good approach to evaluate the icing condition levels of overhead transmission lines.关键词
架空输电线路/覆冰/机械荷载/外绝缘/模糊专家系统/状态评估/在线监测Key words
overhead transmission line/icing/mechanical load/external insulation/fuzzy expert system/condition assessment/on-line monitoring分类
信息技术与安全科学引用本文复制引用
阳林,郝艳捧,李立浧,罗兵..架空输电线路覆冰状态评估模糊专家系统[J].高电压技术,2011,37(12):3028-3035,8.基金项目
国家重点基础研究发展计划（973计划） （）
国家高技术研究发展计划（863计划） （）
中央高校基本科研业务费专项资金项目（2009ZZ0008）~~ （）
