A New Adaptive Distance Protection Scheme for a Transmission Line

被引：5
|
作者：
Ma, Jing [1 ,2 ]
Yan, Xin [1 ]
Ma, Wei [3 ]
Sun, Lvyi [1 ]
机构：
[1] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
[2] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
[3] State Grid Hangzhou Elect Power Supply Co, Hangzhou, Zhejiang, Peoples R China
来源：
ELECTRIC POWER COMPONENTS AND SYSTEMS | 2016年 / 44卷 / 01期
基金：
中国国家自然科学基金;
关键词：
adaptive distance protection; voltage and current phasor diagram; voltage drop equation; adaptive setting coefficient; fault resistance; transmission line; single-phase-to-ground fault; phase-to-phase fault; two-phase-to-ground fault; three-phase fault; RELAYING SCHEME; ALGORITHM; COMPENSATION; LOCATION; FAULTS;
D O I：
10.1080/15325008.2015.1091861
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 view of fault resistance to the influence of distance protection, a new adaptive distance protection scheme for a transmission line is proposed in this article. First, according to the geometric distribution of the measured phasors in fault conditions, the voltage drop equation is established and the adaptive setting coefficient is defined. On this basis, the angular difference between the fault current and the measured current is calculated according to the negative-sequence and zero-sequence components of the current. Finally, a new adaptive distance protection criterion is established. Simulation tests on the real-time digital simulator 500-kV two-machine system verify that the proposed method is able to modify the protection setting value adaptively on-line, and it is applicable to various fault types with strong immunity to the fault resistance. It is also simple in formation and easy to implement.
引用
收藏
页码：1 / 17
页数：17
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