电测与仪表2017，Vol.54Issue(4)：17-21,5.
数字化变电站采样值报文非整周期采样误差分析及其补偿算法研究
Non-integer-period sampling error analysis of digital substation sampled values messages and the research of its compensation algorithms
段太钢 1吴双惠 1金华蓉 1卜银娜 1寇华垒1
作者信息
- 1. 许继电气股份有限公司,河南 许昌 461000
- 折叠
摘要
Abstract
Because of the low sampling rate in digital substation sampled values messages,the non-integer-period sampling phenomenon is more obvious compared with conventional substation.Spectrum leakage and picket-fence effect are more serious.In this paper,Fourier transform error is analyzed from two aspects of amplitude error and phase error under different sampling points and grid frequency by precise mathematical derivation.The method of selecting the optimal initial phase angle is found.The compensation algorithm to reduce this error is given.It can significantly improve the accuracy of analysis.关键词
数字化变电站/采样值报文/非整周期采样/傅里叶变换/最优起始相位角Key words
digital substation/sampled values messages/non-integer-period sampling/Fourier transform/optimal initial phase分类
信息技术与安全科学引用本文复制引用
段太钢,吴双惠,金华蓉,卜银娜,寇华垒..数字化变电站采样值报文非整周期采样误差分析及其补偿算法研究[J].电测与仪表,2017,54(4):17-21,5.
