Digital distance protection of transmission lines in the presence of SSSC

被引：47

作者：

Ghorbani, Amir ^{[1
]}

Mozafari, Babak ^{[1
]}

Ranjbar, Ali Mohammad ^{[2
]}

机构：

[1] Islamic Azad Univ, Sci & Res Branch, Dept Elect Engn, Tehran, Iran

[2] Sharif Univ Technol, Dept Elect Engn, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2012年 / 43卷 / 01期

关键词：

Distance relay; Trip boundary; Static Synchronous Series Compensator (SSSC); PERFORMANCE; ALGORITHM; RELAYS; IMPACT;

D O I：

10.1016/j.ijepes.2012.05.035

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 the impact of Static Synchronous Series Compensator (SSSC) on the impedance calculated by distance relay is investigated. Analytical results are presented and verified by detailed simulations. Six different phase to phase and phase to ground measuring units of the distance relay are simulated to resemble the behavior of the relay. It is shown in this paper that zero sequence of the injected voltage by 48 pulse SSSC converter has the most impact on the apparent impedance seen by the phase to ground fault measuring unit and cause under reaching of distance relay. It can be concluded from the results that SSSC located in the middle of the transmission line cause to divide trip characteristics of distance relay into two separate parts. It is also shown that the over-reaching operation of distance relay might happen in some cases in the presence of SSSC. All the detailed simulations are carried out in MATLAB/Simulink environment. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：712 / 719

页数：8

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