电力系统保护与控制Issue(3)：44-49,6.
直接提取基频分量瞬时值的快速滤波算法
A fast filtering algorithm for extracting fundamental instantaneous value
摘要
Abstract
The existing algorithm of obtaining fundamental component phasor by removing decaying DC component can’t meet the demand of fast protection algorithm. Therefore, an algorithm for extracting fundamental instantaneous value from only three samples is presented. The relationship between computation coefficient and time constant is researched. The research shows that when the time constant varies in a wide range, the computation coefficient is nearly a constant. Laboratory test and numerical simulation all indicate that the algorithm has the advantage of little calculation, high accuracy, and no requirement of calculating time constant. The algorithm can be employed by protection devices for HV and EHV transmission lines.关键词
基频分量瞬时值/快速滤波/衰减直流分量/时间常数Key words
fundamental component instantaneous value/fast filtering/decaying DC component/time constant分类
信息技术与安全科学引用本文复制引用
黄世年,佟为明,郭志忠,李中伟..直接提取基频分量瞬时值的快速滤波算法[J].电力系统保护与控制,2013,(3):44-49,6.基金项目
国家自然科学基金(50907014) （50907014）
教育部高等学校博士学科点专项科研基金新教师基金(20092302120015) （20092302120015）
黑龙江省自然科学基金(E200914) （E200914）
