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| 基于小波变换的行波测距式距离保护原理的研究 | |
| 引用本文： | 董杏丽,葛耀中,董新洲,张伏生,张言苍,索南加乐.基于小波变换的行波测距式距离保护原理的研究[J].电网技术,2001,25(7):9-13. |
| 作者姓名： | 董杏丽 葛耀中 董新洲 张伏生 张言苍 索南加乐 |
| 作者单位： | 1. 西安交通大学电气工程学院 2. 清华大学电机系 3. 国家电力公司南京自动化股份有限公司 |
| 基金项目： | 国家自然科学基金资助项目 (5 98770 2 0，5 0 0 770 11)&& |
| 摘 要： | 对行波测距式距离保护的原理、动作特性等进行了详细的分析，其主要优点在于（1）不需要载波通道，在通信线路故障情况下仍能保证装置的可靠动作；（2）在判断出故障的同时能精确给出故障距离，即集保护和故障测距为一体。文章利用小波变换对行波距离保护进行了深入的分析，指出了其中存在的问题并提出了解决办法。EMTP仿真结果证明了分析的正确性和解决方法的可行性。 |
| 关 键 词： | 继电保护 电力系统 距离保护 行波测距 小波变换 |
| 文章编号： | 1000-3673(2001)07-0009-05 |
WAVELET TRANSFORM BASED DISTANCE PROTECTION SCHEME WITH TRAVELLING WAVE FAULT LOCATION |
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| Abstract: | The principle and characteristics of single terminal data based distance protection with travelling wave fault location are analyzed in detail. The main advantages of this protection lie in the following: (1) Having no use for carrier channel it can act correctly while the communication line is faulty; (2) The faulty position can be accurately found out as soon as the fault is distinguished, i.e., the fault location and the protection are integrated. Through the application of wavelet transform the distance protection itself is analyzed in depth, the existing problems is pointed out and its solution is given. The simulation results by EMTP show that the analyses are correct and the solution is feasible. |
| Keywords: | travelling wave distance protection fault location wavelet transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |