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| 基于双端不同步数据故障定位的中位修正法 | |
| 引用本文： | 全玉生,邱庆春,邵宇,李平,霍光.基于双端不同步数据故障定位的中位修正法[J].高电压技术,2005,31(9):1-4. |
| 作者姓名： | 全玉生 邱庆春 邵宇 李平 霍光 |
| 作者单位： | 1. 华北电力大学电力工程系,北京102206 2. 辽宁省大连市电业局,大连116001 3. 东北电力设计院大连分院,大连116023 4. 辽宁省大连石化热电厂,大连116031 |
| 摘 要： | 提出了基于双端不同步数据的故障定位(它不受过渡电阻影响,比单端算法定位准确)新算法,该算法利用故障前、后的电压电流信息对线路参数和故障距离分别迭代求解,同时综合修正线路长度、线路参数及电压电流等误差。仿真计算证明,该法估算线路参数和故障距离较准确,且不受故障类型、线路参数变化和故障线路长度误差等因素影响,鲁棒性较强。 |
| 关 键 词： | 故障定位 双端不同步 参数估计 |
| 文章编号： | 1003-6520(2005)09-0001-04 |
| 收稿时间： | 2004-09-12 |
| 修稿时间： | 2004年9月12日 |
Novel Correcting Method for Fault Location Based on Two-terminal Asynchronous Data |
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| QUAN Yusheng,QIU Qingchun,SHAO Yu,LI Ping,HUO Guang.Novel Correcting Method for Fault Location Based on Two-terminal Asynchronous Data[J].High Voltage Engineering,2005,31(9):1-4. | |
| Authors: | QUAN Yusheng QIU Qingchun SHAO Yu LI Ping HUO Guang |
| Affiliation: | 1. School of Electrical Engineering, North China Electric Power University, Beijing 102206, China; 2. Dalian Electric Power Co. , I.td. , Dalian 116001, China; 3. Dalian Branch Company, Northeast Electric Power Design Institute, Dalian 116023, China; 4. Dalian Petrochemical Corporation, Dalian 116031, China |
| Abstract: | The method of fault location which use data from two ends of the transmission line are not effected by the fault resistance and are more sensitive than those methods which use one-terminal data. So more attention are paid to them nowadays. A novel method based on two-terminal data is presented here, which can use the voltages and currents before and after fault to calculate the parameter of line and the point of fault iteratively and respectively. The algorithm can make a dynamic and integrative correction to the errors of voltage, current and the length and parameter of the line etc. The simulation proves that this method can estimate the line parameter and the fault distance more accurately. And the fault type, the change of line parameter, and the error of fault line has little influence to this method. So this method is more robust |
| Keywords: | fault location unsynchronized two-terminal parameter estimate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |