基于签名曲线的相位差计算方法研究
Research on Phase Difference Calculation Method Based on Signature Curve
张韶光 1周雪青 2师元康 1高飞 1赵东杰3
作者信息
- 1. 国网河北省电力有限公司超高压分公司,河北 石家庄 050071
- 2. 国网河北省电力有限公司电力科学研究院,河北 石家庄 050021
- 3. 石家庄科林智控科技有限公司,河北 石家庄 050222
- 折叠
摘要
在新老设备二次电压对比时,现有递进式二次核相方法不能定量计算相位差.为准确计算相位差,研究应用了签名曲线算法,首先依托该算法计算出新老设备电压曲线之间的相似度,结合正弦电压曲线的对称性和单调性,推导了相似度和相位差之间的线性关系,进而准确计算两曲线间的相位差,实现各类接线形式下的二次核相工作.
Abstract
The existing wireless secondary phase detector is capable of progressively analyzing sampled data.It intelligently com-pares the maximum and minimum values considering errors when comparing the voltages of new and old equipment,subse-quently yielding the result of secondary phase detection.However,this detector is limited to situations where both new and old devices are connected in a star configuration,rendering it ineffective when the connection modes differ between the two devices.This paper investigates the signature curve algorithm and derives a linear relationship between the similarity and phase differ-ence of two curves,enabling secondary phase detection in any scenario.
关键词
二次核相/签名曲线/相似度/相位差Key words
secondary nuclear phase/signature curve/similarity/phase difference引用本文复制引用
基金项目
国网河北省电力有限公司科技项目(kjcb2022-025)
出版年
2024
NETL
NSTL
万方数据