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arXiv 2011.03227eess.SP
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基于人工神经网络和R-X阻抗图的输电线路高阻抗故障测距

Estimation of High Impedance Fault Location in Electrical Transmission Lines Using Artificial Neural Networks and R-X Impedance Graph

Serkan Budak, Bahadir Akbal

摘要:

确保从发电到向城市输电的过程的连续性非常重要。该系统最重要的部分是能量传输线路和保护这些线路的距离保护继电器。在系统发生短路时,应尽快停用电气装置中保护继电器的主要功能。准确的误差定位技术是快速有效工作的前提。距离继电器广泛应用于输配电线路的主、后备保护。基本上,距离保护继电器通过比较电压和电流值来确定线路的阻抗。在这项研究中,人工神经网络(ANN)已被用于准确定位高阻抗短路故障在154 kV输电线路。为了使研究更真实,利用仿真程序生成了断路器、电流电压Transformer、架空输电线路、距离保护继电器和距离保护继电器的阻抗图(R-X)。通过记录在高阻抗短路故障时发生的阻抗变化的图像而创建的数据集。图像中的相关焦点作为输入给不同的人工神经网络模型,并预测短路故障发生在不同的位置上的输电线路具有高精度。

英文摘要:

It is very important to ensure continuity in the process from generation of electricity to transmission to cities. The most important part of the system is energy transmission lines and distance protection relays that protect these lines. The main function of the protection relays in electrical installations should be deactivated as soon as possible in the event of short circuits in the system. An accurate error location technique is required to make fast and efficient work. Distance relays are widely used as main and backup protection in transmission and distribution lines. Basically, distance protection relays determine the impedance of the line by comparing the voltage and current values. In this study, artificial neural network (ANN) has been used to accurately locate high impedance short circuit faults in 154 kV power transmission lines. The impedance diagram (R-X) of the circuit breaker, current-voltage transformer, overhead transmission line, distance protection relay and distance protection relay has been formed by using simulation program in order to make the study real. The data sets created by recording the image of the change of the impedance occurring at the time of high impedance short circuit fault. The related focal points in the images are given as input to different ANN models and predicted the short circuit faults occurring at different locations on the transmission lines with high accuracy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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