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电网技术  2018, Vol. 42 Issue (8): 2719-2724    DOI: 10.13335/j.1000-3673.pst.2017.2173
  高电压技术 本期目录 | 过刊浏览 | 高级检索 |
一种基于多元统计分析的变压器状态评判方法
程宏波1, 伦利1, 康琛2, 刘明军2, 辛建波2, 文福拴3
1.华东交通大学 电气与自动化工程学院,江西省 南昌市 330013;
2.国网江西省电力公司 电力科学研究院,江西省 南昌市 330096;
3.浙江大学 电气工程学院,浙江省 杭州市 310007
A Method for Evaluating the State of a Transformer Based on Multivariate Statistical Analysis
CHENG Hongbo1, LUN Li1, KANG Chen2, LIU Mingjun2, XIN Jianbo2, WEN Fushuan3
1. School of Electrical and Automation Engineering, EastChina Jiaotong University, Nanchang 330013, Jiangxi Province, China;
2. State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, Jiangxi Province, China;
3. School of Electrical Engineering, Zhejiang University, Hangzhou 310007, Zhejiang Province, China
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摘要 为充分利用变压器的多元状态监测信息,实现对变压器运行状态的准确评判,分析了多元T2控制图、多元累积和控制图以及多元指数加权滑动平均控制图3种典型多元统计控制图用于变压器状态评判的构建方法,对比了不同控制图对变压器状态变化波动检出能力的区别,筛选出多元累积和控制图用于变压器运行状态的评判。通过对变压器正常运行状态以及故障状态监测数据的分析表明,多元累积和控制图可将变压器的多元监测数据转化成一个统计指标,以直观的形式表示出来,易于发现变压器运行过程中状态参数均值向量及协方差向量的异常变动,可提前发现变压器运行状态的异常,识别灵敏度更高。
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程宏波
伦利
康琛
刘明军
辛建波
文福拴
关键词:  多元统计控制图  变压器  故障预警  状态评价    
Abstract: In order to make full use of transformer state data and judge the state of a transformer accurately, Multivariate T2 control chart, Multivariate Cumulative Sum control chart and Multivariate Exponentially Weighted Moving Average control chart are proposed to evaluate the state of a transformer. The detection capabilities of different control charts to transformer state fluctuation are compared and the Multivariate Cumulative Sum control chart is selected to judge the running state of the transformer. By analyzing the data representing normal and abnormal states of the transformer it is known that the Multivariate Cumulative Sum control chart can convert multiple monitoring parameter into an intuitive statistical index,and then it will be easy to find the abnormal changes of the mean vectors and covariance vectors of the transformer state parameters, and can identify the abnormal state of the transformer in advance with high sensitivity.
Key words:  multivariate statistical control chart    transformer    prealarming of faults    state evaluation
收稿日期:  2017-09-06                     发布日期:  2018-08-08      期的出版日期:  2018-08-05
ZTFLH:  TM721  
基金资助: 江西省杰出青年人才培养项目(20162BCB23046); 江西省重点研发计划项目(20161BBH80033); 江西省博士后科研择优资助项目(2016KY36)
作者简介:  程宏波(1979),男,通信作者,国网江西省电力有限公司博士后,副教授,主要从事输变电设备(包括牵引供电设备)健康管理、故障诊断及预测、电网智能控制等研究,E-mail:waitingbo@126.com。
引用本文:    
程宏波, 伦利, 康琛, 刘明军, 辛建波, 文福拴. 一种基于多元统计分析的变压器状态评判方法[J]. 电网技术, 2018, 42(8): 2719-2724.
CHENG Hongbo, LUN Li, KANG Chen, LIU Mingjun, XIN Jianbo, WEN Fushuan. A Method for Evaluating the State of a Transformer Based on Multivariate Statistical Analysis. POWER SYSTEM TECHNOLOGY, 2018, 42(8): 2719-2724.
链接本文:  
http://www.dwjs.com.cn/CN/10.13335/j.1000-3673.pst.2017.2173  或          http://www.dwjs.com.cn/CN/Y2018/V42/I8/2719
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