基于加权主成分分析的电能质量综合评估模型分析  

Analysis on Synthetic Power Quality Evaluation Model Based on Weighted Principle Component Analysis

作　　者：王磊[1] 王秋莎[2] 陈博文[3] 

机构地区：[1]国网河北省电力公司电力科学研究院,石家庄050021 [2]河北省电力勘测设计研究院,石家庄050031 [3]国网河北省电力公司石家庄供电分公司,石家庄050051

出　　处：《河北电力技术》2014年第6期20-22,26,共4页Hebei Electric Power

摘　　要：针对电能质量综合评估的特点,提出采用基于加权主成分分析的电能质量综合评估模型处理监测数据的方案。从原始数据标准化、计算相关系数矩阵、确立主成分并加以权值、综合评价模型等方面分析电能质量综合评估模型的评价方法,并通过算例验证了该模型的有效性,结果表明利用该模型可以得出各观测点电能质量等级及电能质量好坏的排序,提高计算效率。Aiming at the characteristic of the integration eval-uation of power quality, the synthetic power quality evalua-tion model based on weighting PCA is presented. The evalu-ation method of synthetic power quality evaluation model isanalysed by the original data standardization, calculating thecorrelation coefficient matrix, determining principal compo-nent and creating the weights, the comprehensive evaluationmodel of the 4 aspects. The effectiveness of the model isdemonstrated by the example. The model not only can getpower quality level and sequencing of each monitoring point,but also can reduce the amount of computation and improvethe computational efficiency.

关 键 词：电能质量 综合评估 加权主成分 矩阵 

分 类 号：TM711[电气工程—电力系统及自动化]