使用 MATLAB/Simulink 对输电线路进行定时过流保护

Q2 Mathematics

Bulletin of Electrical Engineering and Informatics Pub Date : 2024-04-01 DOI:10.11591/eei.v13i2.5301

T. A. Taha, Hussein I. Zaynal, A. T. T. Hussain, H. Desa, Faris Hassan Taha

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引用次数: 0

摘要

本文研究了定时过电流（DTOC）的应用，它能在输电线路发生过电流时做出反应，保护断路器免受损坏。在距离继电器之后，这种过流继电器被用作后备保护。过流继电器会在预定的延时后发出信号，如果距离继电器没有检测到线路故障，断路器就会跳闸。因此，该过流继电器的延时仅略微长于距离继电器和断路器的工作时间总和。该 DTOC 针对各种类型的故障进行了测试，包括负载 1 发生的三相故障、负载 2 发生的三相故障、一次保护前发生的三相故障以及一次保护失灵时的电压和电流特性。所有结果都将通过 MATLAB/Simulink 软件包获得。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Definite time over-current protection on transmission line using MATLAB/Simulink

This paper has investigated the application of the definite time over-current (DTOC) which reacts to protect the breaker from damage during the occurrence of over-current in the transmission lines. After a distance relay, this kind of over-current relay is utilized as backup protection. The overcurrent relay will provide a signal after a predetermined amount of time delay, and the breaker will trip if the distance relay does not detect a line failure. As a result, this over-current relay functions with a time delay that is just slightly longer than the combined working times of the distance relay and the breaker. This DTOC is tested for various types of faults which are 3- phase fault occurring at load 1, 3-phase fault occurring at load 2, a 3-phase fault occurring before primary protection, and the behaviour of voltage and current with a failed primary protection. All the results will be obtained using the MATLAB/Simulink software package.

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来源期刊

Bulletin of Electrical Engineering and Informatics Computer Science-Computer Science (miscellaneous)

CiteScore

3.60

自引率

0.00%

发文量

期刊介绍： Bulletin of Electrical Engineering and Informatics publishes original papers in the field of electrical, computer and informatics engineering which covers, but not limited to, the following scope: Computer Science, Computer Engineering and Informatics[...] Electronics[...] Electrical and Power Engineering[...] Telecommunication and Information Technology[...]Instrumentation and Control Engineering[...]