变压器微机保护改进算法的研究  

Study of Improved Algorithm for Microprocessor in Transformer

作　　者：赵义明[1] 任婷会[1] 

机构地区：[1]中国石油大学胜利学院电气信息工程系,山东东营257000

出　　处：《电气电子教学学报》2011年第2期31-33,37,共4页Journal of Electrical and Electronic Education

摘　　要：本文对微机保护常用的几种算法性能进行了比较,在分析全波傅氏算法的基础上,针对其不能滤除衰减的非周期分量问题介绍了改进算法。通过仿真表明,改进后的算法精度高,滤波效果好,是最适合110kV及以下变压器微机保护的算法,该算法在变压器微机保护研究中具有较高的理论和实用价值。This paper contrast some capability of common algorithms in microprocessor-based protection. According to analyze the full-wave Fourier algorithm ,it puts forward an improved algorithm which contra- poses the shortage of filtering the decaying non-periodic component. By means of simulation, the improved algorithm has high accuracy and filter efficiency to adapt the microprocessor- based protection in trans- former substation with voltage of llOkV and below. Meanwhile the algorithm has higher theoretical and practical value in the research of microprocessor-based protection in transformer substation.

关 键 词：变压器微机保护 改进算法 全波傅氏算法 非周期分量 算法性能 算法精度 滤波效果 实用价值 

分 类 号：TM774[电气工程—电力系统及自动化]