中国电力2024，Vol.57Issue(3)：60-72,13.DOI:10.11930/j.issn.1004-9649.202306105
基于模糊多判据融合的单端暂态量保护新方案
Single Terminal Transient Protection Scheme Based on Fuzzy Multi-criteria Fusion
摘要
Abstract
The existing single-terminal transient protection schemes rely solely on single fault feature for fault identification,which leads to the poor identification reliability.This paper thus proposes a novel single-terminal transient protection scheme based on fuzzy multi-criteria fusion to achieve the complementation of the advantages of different single-terminal transient protection schemes through fuzzy multi-criteria fusion.Firstly,the characteristics and action sensitive regions of three single-terminal transient protection schemes,which are based on the ratio of high-and low-frequency transient energy,the arrival time difference of fault initial zero-mode/line-mode voltage traveling wave and the polarity relationship of initial line mode voltage traveling wave,are analyzed,and the fuzzy membership functions of corresponding criteria are constructed.Secondly,based on the advantages and disadvantages of different transient protection schemes,the above three single-terminal transient protection schemes are integrated based on fuzzy logic to achieve fault zone discrimination.Finally,based on a large number of simulation using PSCAD/EMTDC,the three transient protection schemes mentioned above and the proposed novel scheme is compared in terms of adaptability under different fault locations,different bus stray capacitance,different transition resistance and different weight coefficients,which has verified the effectiveness of the proposed novel scheme.关键词
暂态量保护/多判据融合/模糊逻辑/动作灵敏区/隶属度函数Key words
transient based protection/multi-criteria fusion/fuzzy logic/action sensitive region/membership function引用本文复制引用
罗美玲,李紫肖,郑涛,于晓军,吴建云,谢海滨..基于模糊多判据融合的单端暂态量保护新方案[J].中国电力,2024,57(3):60-72,13.基金项目
国家自然科学基金联合基金资助项目(U2166205) （U2166205）
国网宁夏电力有限公司科技项目(SGNX0000DKJS2200158). This work is supported by the Joint Funds of the National Natural Science Foundation of China(No.U2166205),Science and Technology Project of State Grid Ningxia Electric Power Co.,Ltd.(No.SGNX0000DKJS2200158). （SGNX0000DKJS2200158）
