摘要
对比分析几种输电线路工频参数的在线测量方法,认为牛拉法和基于传输线方程的测量方法精确度比较高;通过鲁棒性分析,对这2种算法进一步比较后认为基于传输线方程的算法的鲁棒性相对较好。为了进一步验证该算法,用MATLAB搭建双回线路的模型,仿真计算各参数值,在对两端输入量迭加一定误差后,发现计算结果的误差在可接受范围内,该算法具有一定的实际使用价值。
This paper analyzes several methods of power frequency parameter online measurement of transmission line,gets the conclusion that Newton-Raphson method and based on transmission line equation method have higher accuracy,then makes further comparison of the two algorithms through robustness analysis,concludes that the algorithms based on transmission line is provided with better robustness,to further verify this algorithm,builts simulation models of double circuit transmission lines in MATLAB and get the simulation dates,after adding certain errors to both ends of the input,the results of the error are acceptable,the algorithm has practical value.
出处
《河北电力技术》
2010年第4期27-28,36,共3页
Hebei Electric Power
关键词
输电线路
工频参数
在线测量
鲁棒性
transmission lines
power frequency parameter
on-line measurement
robustness
