| 引用本文: | 陈 旭,朱永利,郭小红,赵 磊,高艳丰.同杆并架双回线双端非同步故障测距算法[J].电力自动化设备,2016,36(5): |
| CHEN Xu,ZHU Yongli,GUO Xiaohong,ZHAO Lei,GAO Yanfeng.Dual-terminal asynchronous fault location algorithm for two parallel overhead lines on same pole[J].Electric Power Automation Equipment,2016,36(5): |
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| 摘要: |
| 提出一种同杆双回线非同步故障测距算法，算法利用故障点与线路两侧之间的同向正序电压与同向正序故障电压之商相等的原理消除不同步角的影响，采用二分区间求根法或者弦截求根法求解故障位置。定性分析结果和EMTP仿真结果表明，所提算法不存在伪根，无需双端数据同步，不受过渡电阻和故障类型的影响，测距精度较高。 |
| 关键词: 分布参数 同杆并架双回线 故障测距 伪根 仿真 |
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| 基金项目:中央高校基本科研业务费专项资金资助项目（2014xs74） |
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| Dual-terminal asynchronous fault location algorithm for two parallel overhead lines on same pole |
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CHEN Xu,ZHU Yongli,GUO Xiaohong,ZHAO Lei,GAO Yanfeng
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School of Electrical and Electronic Engineering，North China Electric Power University，Baoding 071003，China
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| Abstract: |
| A dual-terminal asynchronous fault location algorithm is proposed for two parallel overhead lines on same pole，which eliminates the effect of asynchronous phase based on the principle that the quotient of the common positive-sequence voltage to the common positive-sequence fault voltage of one terminal is equal to that of the opposite terminal，and adopts the bisection method or the secant method to locate the fault. The results of qualitative analysis and simulation with EMTP show that，without false roots and immune to the transition resistance and the fault type，the proposed algorithm does not need data synchronization between two terminals and has high fault location accuracy. |
| Key words: distributed parameter two parallel overhead lines on same pole electric fault location false roots |
