Power Quality Assessment Based on Rough AHP and Extension Analysis

作     者：Guofeng Liu Can Zhang Zhengyi Zhu Xuyan Wang 

作者机构：State Grid Nanjing Power Supply CompanyNanjing210019China 

出 版 物：《Energy Engineering》 (能源工程（英文）)

年 卷 期：2022年第119卷第3期

页      面：929-946页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Power quality comprehensive assessment decision making rough sets analytic hierarchy process extension analysis 

摘      要：Due to the increasing power consumption of whole society and widely using of new non-linear and asymmetric electrical equipment,power quality assessment problem in the new period has attracted more and more *** mathematical essence of comprehensive assessment of power quality is a multiattribute optimal decision-making *** order to solve the key problem of determining the indicator weight in the process of power quality assessment,a rough analytic hierarchy process(AHP)is proposed to aggregate the judgment opinions of multiple experts and eliminate the subjective effects of single expert *** on the advantage of extension analysis for solving the incompatibility problem,extension analysis method is adopted to assess the power *** assessment grades of both total power quality and each assessment indicator are obtained by correlation *** a case of 110 kV bus of a converting station in a wind farm of China,the feasibility and effectiveness of the propose method are *** result shows that the proposed method can determine the overall power quality of power grid,as well as compare the differences among the performance of assessment indicators and provide the basis for further improving of power quality.