摘要
提出了一种利用最小二乘拟合技术测量电力系统频率的新算法 ,能消除信号中直流成分对频率测量的影响。还给出了一种信号预处理算法 ,它可有效地抑制信号中的 2次谐波和 3次谐波。仿真结果表明了新算法测量电力系统频率的有效性。
A new algorithm based on the least square fit technique for m easuring power system frequency is presented.The algorithm has the advantage of less com putation and of fast response,and is free from the influence of the DC component. A preprocessing algorithm is also presented,which can effectively suppress the second harmonic and the third harm onic. Experim ental results show the effectiveness of the new algorithm for measuring power system frequency.
出处
《电力系统自动化》
EI
CSCD
北大核心
2000年第16期32-34,共3页
Automation of Electric Power Systems
关键词
最小二乘拟合
电力系统
频率
测量
least square fit
power system frequency
frequency m easurem ent
harmonic suppression
