电力系统保护与控制2012,Vol.40Issue(15):70-75,6.
基于灰色聚类的电能质量综合评估方法
A power quality comprehensive evaluation method based on grey clustering
摘要
Abstract
Aiming at the continuity problem of comprehensive evaluation of power quality, based on the national standard limits of power quality indices, this paper normalizes the power quality indices and combines the combination weighting method with the grey clustering method to comprehensively evaluate power quality. First of all, the weights of all indices are obtained by analytic hierarchy process (AHP); then, if one or more indices of the evaluating object are over standard, the whitenization values of the indices in every grey class are obtained according to their severities or the normalized value; lastly, the power quality is comprehensively evaluated by grey clustering method, and the power quality level and the power quality score are obtained. Case result shows that the proposed method solves the evaluation continuity problem of the indices' ranging from one side to the other side of the boundary, providing a new idea for comprehensive evaluation of power quality.关键词
电能质量/综合评估/层次分析法/灰色聚类/评价连续性Key words
power quality/comprehensive evaluation/AHP/grey clustering/evaluation continuity分类
信息技术与安全科学引用本文复制引用
周辉,杨洪耕,吴传来..基于灰色聚类的电能质量综合评估方法[J].电力系统保护与控制,2012,40(15):70-75,6.基金项目
国家自然科学基金资助项目(51077095) (51077095)