!!!基于粗糙集理论的架空输电线路运行状态评估.pdf.txt

!!!基于粗糙集理论的架空输电线路运行状态评估
研究与开发
基于粗糙集理论的架空输电线路运行状态评估
姜涛‘韩富春‘范卫星’
( ,太原 0 0024 3 ; ,山西阳泉 0 5 00 ) 4 0 摘要本文提出了一种基于粗糙集理论的架空输电线路运行状态评估新方法。利用粗糙集理论建立架空输电线路决策表,并进行属性约简,得出决策规则。然后,分析计算了各条件属性对各架空输电线路运行状态的不同权重,克服了传统方法确定权重系数的主观性。关键词: 粗糙集; 输电线路; 状态评估
Evaluating the Condition of 0 verhead T ansmission Lines r Based on Rough s ets Theory
加ng 几脚n几chun] 凡n w i ingZ 01 e x
( ment of Electrical and power Engineering, iyuan University of T chnology, iyuan t a T e a T 030024: 2. The Y ngquan Branch of t e power Pany, ngquan 045000 ) a h a Y
Abstract The new met od of evaluating the condition of ovet ead trans而ssion lines was h h Presented in the basis of the rough set decision一 making ta le of over ead transmission lines is b h established by using t e rough set theory. its attributes are reduced, the decision一 h then making Planning is obtained. Mea while, f rent weight of each condition attribute cor elated with the condition of n dif e r overhead transmission lines is analyzed, the sub ectivity of t aditional method in the determination of so j r weight coef cients is over ome, i f c Key 、or ds: Rough set; transmission lines; condition evaluating V
1
引言粗糙集(Ro gh se Rs)的应用目 u , t 前主要还是集
2 粗糙集理论
. 2 1 粗糙集概述
中在规则提取方面,国外已经有学者用粗糙集进行
粗糙集理论是由波兰学者Paw a z .在1982 年 l k
提出的,是一种刻画不完整性和不确定性的数学工具,能有效地分析和处理各种不完备信息,并从中发现隐含的知识, 揭示潜在的规律。其主要思想是:
了地区降水量预测、疾