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文章摘要
基于隶属云和动态时间规整的电能计量误差估计方法
Error estimation method of electric energy measurement based on subordinate cloud and dynamic time regulation
Received:December 19, 2019
Revised:December 19, 2019
DOI：
10.19753/j.issn1001-1390.2022.05.010
中文关键词
:
动态时间规整
影响因素
隶属云
电能计量误差
英文关键词
:
基金项目
:
Author Name
Affiliation
E-mail
Xulingjie
*
State Grid Zhejiang Electric Power Corporation Electric Power Research Institute
h893925319@163.com
Shenjianliang
State Grid Zhejiang Electric Power Corporation Electric Power Research Institute
2674945@163.com
Guopeng
State Grid Zhejiang Electric Power Corporation Electric Power Research Institute
278465549@163.com
Chenxiao
State Grid Zhejiang Electric Power Corporation Electric Power Research Institute
2647636@163.com
Lizhili
Fujian YiRong Information Technology Co
,
Ltd
,
25478374@163.com
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中文摘要
:
电能计量系统误差估计是针对由电能表、电流互感器(CT)、电压互感器(VT)和二次回路组成的电能计量装置潜在危害的有效手段。电能表和二次回路的计量误差可以在线监测,但CT和VT的计量误差不能直接测量,且随温度、泄漏电流等因素的变化而变化。本文提出了一种利用隶属云(MC)和动态时间规整(DTW)连续估计CT和VT变比和相位误差的方法。该方法构造了一个新的混合半梯形MC生成器(MCG),以解决在不同影响因素下误差偏差的随机性和模糊性问题。利用改进的DTW算法(MDTW),可以根据误差时间序列与量化影响因素之间的相似性,估计CT和VT误差。将电能表和二次回路的测量误差与估计的电流互感器和电压互感器误差相结合,便可得到电能计量系统的综合误差。通过110kV变电站电能计量装置的现场测试数据,验证了本文方法的有效性。
英文摘要
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