摘要
鉴于采用传统的阻抗法进行故障定位难以克服过渡电阻等因素的影响,提出了一种基于行波法的单端故障定位装置。详细论述了该装置硬件、软件的设计工作,提出了一种基于小波的暂态信息分析方法,以及基于模量变换的定位算法。由于装置中高达120MHz的高速数据采集板的使用,单端故障定位也能够满足输电线路故障定位的要求,并且由于单端装置设备更简单,还具有向配电网故障定位装置发展的优势。
The traditional impedance method of fault location can not overcome the effect of transition resistance, etc. So the paper presents a new single-end fault location device based on traveling wave, details the design of its hardware and software, and gives a wavelet-based analytical method for transient information as well as a fault location algorithm based on modulus transform. As a high-rate data acquisition system up to 120 MHz is adopted in the device, the single-end fault location can also meet the need of power transmission lines. As the device has no need to communicate with other end, it can also be used in the power distribution network.
出处
《广东电力》
2009年第6期33-36,56,共5页
Guangdong Electric Power
关键词
行波
故障定位
模量变换
小波
traveling wave
fault location
modulus transform
wavelet
