南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2013年
2期
110-114
,共5页
电力系统%电能质量%综合评估%组合赋权法%序关系
電力繫統%電能質量%綜閤評估%組閤賦權法%序關繫
전력계통%전능질량%종합평고%조합부권법%서관계
power system%power quality%comprehensive evaluation%combinatorial weighting method%order relations
为了对电能质量各项评估指标进行合理的赋权,提出了一种基于逐层序关系的组合赋权法.该方法采用交互式确定电能质量各项指标的主观性权重,利用改进的变异系数法确定客观性权重,然后综合考虑被评估对象的主观及客观特性差异来确定权重组合,进一步确定分层序关系中的递阶层权重,最终得到电能质量综合评估权重向量.算例结果分析表明,该组合赋权法评估过程具有低维性,评估结果具有高的分辨率和精确性.
為瞭對電能質量各項評估指標進行閤理的賦權,提齣瞭一種基于逐層序關繫的組閤賦權法.該方法採用交互式確定電能質量各項指標的主觀性權重,利用改進的變異繫數法確定客觀性權重,然後綜閤攷慮被評估對象的主觀及客觀特性差異來確定權重組閤,進一步確定分層序關繫中的遞階層權重,最終得到電能質量綜閤評估權重嚮量.算例結果分析錶明,該組閤賦權法評估過程具有低維性,評估結果具有高的分辨率和精確性.
위료대전능질량각항평고지표진행합리적부권,제출료일충기우축층서관계적조합부권법.해방법채용교호식학정전능질량각항지표적주관성권중,이용개진적변이계수법학정객관성권중,연후종합고필피평고대상적주관급객관특성차이래학정권중조합,진일보학정분층서관계중적체계층권중,최종득도전능질량종합평고권중향량.산례결과분석표명,해조합부권법평고과정구유저유성,평고결과구유고적분변솔화정학성.
In order to get the reasonable empowerments of power quality indexes, a combination weighing method based on stepwise order relations is proposed in this paper. The method weights firstly the subjective indexes of power quality with interactive models and the objective indexes with improved variation coefficient method, and then establishes the combination weights by considering the differences between the subjective and objective characteristics of the evaluation target, and furthermore determines the stratified weights, and finally obtains a weighting vector for power quality comprehensive evaluation. The analysis results of an account case show that the assessment process of the proposed method is characterized with low dimension, and its evaluation results are in high resolution and accuracy.