摘要
变压器油色谱在线监测数据质量是影响状态评估准确性的重要因素,为评估在线监测数据的有效性,根据变压器油色谱特点,分别以H2、总烃和CO作为特征气体,采用Fast-MCD稳健分析方法进行异常值检测;定义了在线监测单一特征气体数据有效性评估指标和加权油色谱在线监测系统数据有效性评估指标。通过对某电网500 kV变压器在线监测数据样本统计分析,对常见的三种油色谱在线监测系统的数据有效性进行了对比评估。
To evaluate the validity of online monitored chromatographic data of transformer oil,the outliers of the measured values of the characteristic gases H2,total hydrocarbon and CO are analyzed according to the chromatographic characteristics of transformer oil by means of Fast-MCD robust statistics. Then,the validity evaluation indexes for the monitored data of single characteristic gas and the weighted data of online monitoring facility are defined. Moreover,the samples of online monitored chromatographic data of transformer oil from a 500 kV grid are selected for statistical analysis, and the validities of three common online chromatography monitoring systems are consequently compared.
作者
李振杰
卞朝晖
陈学民
马松
郭航源
林江
LI Zhenjie;BIAN Zhaohui;CHEN Xuemin;MA Song;GUO Hangyuan;LIN Jiang(Heze Power Supply Company,Shandong Electric Power Company,Shandong Heze 274000,China;Nanjing Desoftinfo Technology Development Co.,Ltd.,Nanjing 210000,China)
出处
《高压电器》
CAS
CSCD
北大核心
2018年第6期158-163,169,共7页
High Voltage Apparatus
关键词
变压器
稳健统计
油色谱
有效性
评估指标
transformer
robust statistics
oil chromatography
validity
evaluation index
