基于变异系数法和灰色关联度的高压并联电容器综合评价研究  

Research on Comprehensive Evaluation of High Voltage Shunt Capacitor Based on Coefficient of Variation Method and Grey Correlation Degree

作　　者：陈力 汤霖 左中秋 雷晓燕 李倩倩 陈中华 CHEN Li;TANG Lin;ZUO Zhongqiu;LEI Xiaoyan;LI Qianqian;CHEN Zhonghua(China Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]中国电力科学研究院有限公司,武汉430074

出　　处：《电力电容器与无功补偿》2023年第5期27-32,共6页Power Capacitor & Reactive Power Compensation

基　　金：中国电力科学研究院有限公司青年基金项目(高压并联电容器综合性能评价与状态评估技术研究,SZ84-23-003)。

摘　　要：高压并联电容器的质量和性能直接影响着其运行可靠性和使用寿命,很有必要对其进行综合评价研究,但是目前鲜有文献对高压并联电容器的综合性能进行评价研究。本文选取高压并联电容器的电容偏差、损耗角正切、低温下局部放电熄灭电压、热稳定状态下心子温升、高温下电容器损耗角正切作为关键指标参数,提出了一种综合评价方法。应用变异系数法求解各指标的权重,并结合灰色关联度对高压并联电容器综合性能进行评价。最后运用所提方法评价不同制造商同一型号产品的综合性能,结果表明所提方法的有效性和合理性。The quality and performance of high voltage shunt capacitor directly affect its operation reliability and service life,and it is necessary to perform comprehensive evaluation and research on the capacitor.However,there is little literature to evaluate the comprehensive performance of high voltage shunt capacitor at present.Such key index parameters of high voltage shunt capacitors capacitance deviation,the tangent of the loss angle(tanδ),partial discharge extinguishing voltage at low temperature,temperature rise of core under thermal stability and the tangent of the loss angle(tanδ)at elevated temperature are selected in this paper,and a kind of comprehensive evaluation method is proposed.The weight of each index is solved by using the coefficient of variation method,and combined with the grey correlation degree,the performance of high voltage shunt capacitor is evaluated.Finally,the proposed method is used to evaluate the comprehensive performance of the same type of products from different manufacturers and the effectiveness and rationality of the proposed method are shown by the result.

关 键 词：高压并联电容器 评价指标 变异系数法 灰色关联度 综合评价 

分 类 号：TM53[电气工程—电器]