摘要: |
输电线路是故障率最高的元件,准确的故障定位技术对于电力系统的安全可靠运行具有十分重要的作用。行波原理的故障定位技术的定位精度高,具有不受过渡电阻、线路结构不对称、线路走廊地形变化、电压和电流互感器的变换误差等因素影响的特点,且能够用于直流线路和串补电容线路。近年来行波故障定位技术在新原理的探索、行波信号的提取和分析等方面取得了长足进步,并将高速采样和存储技术应用于行波定位装置的开发。 |
关键词: 行波 故障定位 输电线路 |
DOI:10.7667/j.issn.1674-3415.2007.24.003 |
投稿时间:2007-10-08 |
基金项目: |
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Prospect and development of transmission line fault location using travelling wave |
MA Chao-ran |
(Zhaoqing Power Supply Bureau, GuangDong Power Grid Co.,Ltd, Zhaoqing 526060, China) |
Abstract: |
Since transmission lines are liable to faults, its fault location technology with higher accurate is important to the operation of power systems. As a method with high accuracy, travelling wave based fault location is independent of fault resistance, symmetry of configuration, terrain of corridor, error of TA and TV, and can be used in DC transmission lines and series compensating lines. Recently, the advancements are made on the exploration of new theories, the signal pick-up and analysis, and the high-speed sampling and the mass storage facility are used in the development of travelling wave fault location devices. |
Key words: travelling wave fault location transmission line |