基于两种改进方法的电能质量综合评估  

Comprehensive Evaluation of Power Quality Based on Two Improved Methods

作　　者：何吉彪[1] 程浩忠[1] 姚良忠[2] Masoud Bazargan 

机构地区：[1]上海交通大学电气工程系电力传输与功率变换控制教育部重点实验室,上海200240 [2]国网电力科学研究院,南京210061 [3]阿尔斯通电网集团研究与技术中心

出　　处：《电力系统及其自动化学报》2013年第1期18-22,共5页Proceedings of the CSU-EPSA

基　　金：国家重点基础研究发展计划(973计划)资助项目(2009CB219703)

摘　　要：为了对电能质量进行合理综合评估,提出了基于改进层次分析法(AHP)和加权逼近理想解排序法(TOPSIS)的电能质量综合评估方法。通过分析AHP判断矩阵的不一致性与比较矩阵的关系,找出对判断矩阵一致性影响最大的元素并进行修改。以电能质量国标中的规定值为绝对理想解、限制值为绝对负理想解,解决加权TOPSIS法中可能产生的逆序问题。结合改进AHP获得的权值,计算各评价对象与理想解的接近程度,判断各个综合评估结果是否合格并对各个评估结果进行定性分级。最后通过案例实现该方法的应用。In order to evaluate the power quality reasonably, a method based on improved analytical hierarchy pro- eess（AHP）and weighted technique for order preference by similarity to an ideal solution（TOPSIS） is presented. The element which has the greatest impact on the consistency of the judge matrix can be identified and modified by ana- lyzing the relationship between the comparison matrix and the judgment matrix inconsistency. The inverted sequence of the weighted TOPSIS is solved by considering the specified values of the national standards of power quality as the absolute ideal solution and the limit values as the absolute negative ideal solution. Combined with the weight value which is gained from the improved AHP,the distance between the evaluation objects and the ideal solution is calculated. Therefore the method can judge whether the results are qualified and be qualitative to grade them. An analysis example of evaluating the power quality is given.

关 键 词：层次分析法 判断矩阵 加权逼近理想解排序法 电能质量 综合评估 

分 类 号：TM711[电气工程—电力系统及自动化]