基于改进隶属度函数的配电网监测系统选择方案研究
The Monitoring System Selection of Distribution Network Based on Improved Membership Function
毛乃强 1李启江 1许崇新 1于汉启 1赵阅群 1刘波磊1
作者信息
- 1. 国网山东省电力公司烟台供电公司,山东 烟台 264000
- 折叠
摘要
监测配电设备运行状况须安装大量监测传感器以完成对关键特征量的提取.文章提出基于改进隶属度函数的配电设备状态监测系统综合评估方案.采用主客观权重组合方式,对评价指标的重要性排序.通过改进传统岭型函数,建立了监测系统性能指标质量等级的隶属度函数,准确地刻画指标质量等级间的模糊特性.该方案既能在一定程度上减少赋权的主观性,又能客观反映指标的实际重要程度,克服传统单一赋权受赋权方法影响产生偏差的缺点.同时,量化了指标与质量等级间的模糊关联特性,避免了指标的质量等级隶属结果不准确的问题.
Abstract
It is of great significance to carry out accurate monitoring of equipment operation status to ensure the safe and reliable operation of distribution network.In order to monitor the operating state of distribution equipment,many sensors are used to acquire the key characteristic quantity.To solve the generality of sensor selection,the author build the improved membership function model on the basic of traditional ridge-shaped function to describe the fuzzy degree between relatively quality grades.It adopts the combination of subjective weight and objective weight for sequence of sensor index.It effectively reduces the error caused by single weighting factor.And it also quantifies membership degree of sensor index and the calculation result is more accuracy.
关键词
监测系统/综合评估/组合权重/隶属函数Key words
monitoring system/comprehensive evaluation/combination weighting/membership function引用本文复制引用
基金项目
国网山东省电力有限公司科技项目(5206051900R5)
出版年
2024
NETL
NSTL
万方数据