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首页> 外文期刊>Electric power systems research >A method for fault section identification in High voltage direct current transmission lines using one End measurements
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A method for fault section identification in High voltage direct current transmission lines using one End measurements

机译：一种使用一端测量值的高压直流输电线路故障段识别方法

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摘要

To identify the section of fault in line commutated converter based high voltage direct current transmission lines, a new technique has been proposed in this work. The proposed technique depends on extraction of rectifier end current signal of the transmission line. Three separate fuzzy inference system modules have been proposed to carry out the protection tasks. First fuzzy module detects the faults both in AC and DC section. The second fuzzy module discriminates the section of the fault. The third fuzzy module identifies fault pole and classifies it. The advantage of the proposed method include 100% reach setting, fault detection time is less than one cycle, require no communication links. Besides, the protection scheme covers and discriminates the grounding fault with fault resistance up to 500 Omega. With all the above mentioned advantages, the proposed fuzzy based method can be used efficiently for fault section identification in HVDC transmission lines.
机译：为了确定基于换向换流器的高压直流输电线路中的故障区域，在这项工作中提出了一种新技术。所提出的技术取决于传输线的整流器端电流信号的提取。已经提出了三个独立的模糊推理系统模块来执行保护任务。第一个模糊模块检测交流和直流部分的故障。第二模糊模块区分故障部分。第三个模糊模块识别并分类故障极点。提出的方法的优点包括100％的到达范围设置，故障检测时间少于一个周期，不需要通信链接。此外，该保护方案涵盖并区分了接地故障，故障电阻高达500Ω。具有上述所有优点，所提出的基于模糊的方法可以有效地用于高压直流输电线路的故障区间识别。

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