摘要
介绍了数学形态学理论,提出了其在检测信号奇异性和故障测距方面的应用。通过对信号进行多分辨形态梯度的分解,可以得出随着信号奇异性的不同,分解的结果有相应变化的结论;通过比较前两个模极大值的极性和时间间隔来构成故障定位的算法。这种方法与传统的方法相比,有更高的可靠性和更少的计算量,显著提高了故障响应能力和灵敏度。通过仿真验证了上述两种方法的可行性。
The basic principle of mathematical morphology is introduced. Its application to analysis of signal singularity and fault locating is suggested. Based on the decomposition for multi-resoiution morphology gradient （MMG） signal, it ：is concluded that the result can alternate with the variation of the signals＇ singularity.By comparing the maximum values of the first two modulus and time intervals,the algorithm for fault locating is obtained.Simulation results prove the feasibility of the scheme.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2006年第2期40-44,共5页
Journal of North China Electric Power University：Natural Science Edition
关键词
数学形态学
多分辨
奇异性
故障测距
线路保护
mathematical morphology
multi-resolution
singularity
fault locating
