基于小波变换算法的输电线路距离保护  

Distance protection of transmission line via wavelet transform algorithms

作　　者：海瑛[1] 钱苏翔[1] 严拱标[2] 

机构地区：[1]浙江嘉兴学院机电工程学院,浙江嘉兴314001 [2]浙江大学机电工程学院,浙江杭州310027

出　　处：《机电工程》2006年第8期8-11,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省自然科学基金资助项目(Y104503)

摘　　要：对于输电线路的距离保护,数字滤波器的性能直接影响着保护操作的效果。给出了一个基于小波的滤波算法,它可用于微机继电保护装置中。仿真结果验证了这种新算法对输电线路距离保护的有效性。结果同时显示,该算法精确度高,且收敛速度快。For transmission line distance protection,the performance of digital filter significantly influences the effectiveness of the relaying.A wavelet-based filter algorithm was presented,which can be used in microprocessor-based protection(relays;) The effectiveness of this new algorithm for transmission line distance protection was validated by simulation results.The results also show the high precision and rapid velocity of convergence of the new algorithm.

关 键 词：电网的距离保护 电力系统继电保护 小波变换 

分 类 号：TM773[电气工程—电力系统及自动化]