摘要
通过对现有选线方法的分析及选线系统面临问题的探讨,提出了采用改进的Prony算法提取故障零序电流的谐波分量,并通过比较谐波分量的幅值和相位选出故障线路的方法,实验结果表明,该方法可以准确地实现小电流接地系统单相接地故障的选线,并且无需区分暂态和稳态过程.
Through analysis of existing line selection methods and discussing problems that line selection system faced with,improved Prony algorithm is adopted to extract the information about harmonic components of fault zero sequence current, then the fault line could be selected by comparing the harmonic amplitude and phase of components. The experimental results show that this method can select the fault line exactly, and transient and steady-state process needn＇t to be distinguished.
出处
《沈阳工程学院学报（自然科学版）》
2008年第3期226-229,共4页
Journal of Shenyang Institute of Engineering:Natural Science
