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Traveling wave-based protection for SVC connected transmission lines using game theory
International Journal of Electrical Power & Energy Systems ( IF 5.0 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.ijepes.2020.106276
Mehrdad Khalili , Farhad Namdari , Esmaeel Rokrok

Abstract This paper proposes a novel single-end protection scheme for the compensated transmission line based on traveling waves and Game Theory. Initially, this study investigates the effects of Static VAR Compensator (SVC) on Traveling Waves (TW) passing through SVC location. Subsequently, it evaluates the impacts of SVC switching on conventional protections based on traveling wave theory. Following that, a single-end method to locate faults on compensated transmission lines with SVC is presented in this study. Moreover, Game theory was utilized to discriminate extracted TWs in this paper. In order to investigate the sensitivity of the proposed scheme regarding the extraction techniques of TW, two techniques, namely Mathematical Morphology Filter (MMF) and Discrete Wavelet Transform (DWT) have been used to process the signals in this study. The simulation studies using PSCAD software indicate that the proposed protection scheme is reliable and accurate for all possible types of faults on transmission lines with and without SVC. In addition, the proposed technique presents noise immunity.

中文翻译:

基于博弈论的 SVC 连接输电线路行波保护

摘要 提出一种基于行波和博弈论的补偿输电线路单端保护方案。最初,本研究调查了静态无功补偿器 (SVC) 对通过 SVC 位置的行波 (TW) 的影响。随后,它基于行波理论评估了 SVC 切换对传统保护的影响。随后,本研究介绍了一种使用 SVC 定位补偿输电线路故障的单端方法。此外,本文利用博弈论来区分提取的 TW。为了研究所提出的方案在 TW 提取技术方面的敏感性,在本研究中使用了两种技术,即数学形态滤波器 (MMF) 和离散小波变换 (DWT) 来处理信号。使用 PSCAD 软件进行的仿真研究表明,所提出的保护方案对于有和没有 SVC 的输电线路上所有可能的故障类型都是可靠和准确的。此外,所提出的技术具有抗噪性。
更新日期:2020-12-01
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