Directional element evaluation applied to half-wavelength transmission lines

被引：3

作者：

Berrocal, Juan D. Villon ^{[1
]}

Tavares, Maria C. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Sch Elect & Comp Engn, Campinas, SP, Brazil

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2021年 / 198卷

基金：

巴西圣保罗研究基金会;

关键词：

Directional function; Half-wavelength transmission; HIL; Real-time simulation; POWER TRANSMISSION; FAULT LOCATION;

D O I：

10.1016/j.epsr.2021.107350

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a careful analysis of directional element behavior applied to a half-wavelength transmission line (HWL) is presented. Single line-to-ground (SLG) faults were applied, varying loading conditions and fault resistance. A commercial relay was used. Two directional elements were considered: 32QG and 32V. With the aim of obtaining directional element setting parameters, a Python program based on two-port network theory was developed. The simulations were also performed in a hardware-in-the-loop (HIL) environment. It was observed that only the element 32V operated properly throughout the system during SLG fault conditions. It can be concluded that the conventional directional element algorithm can be applied to a system with a halfwavelength transmission line under the above-mentioned fault condition.

引用

页数：9

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