An Improved Current Differential Protective Principle of UHV Transmission Line

被引：0

作者：

Qiao, Yan ^{[1
,2
]}

Qing, Chen ^{[1
]}

Qiao, Yan ^{[1
,2
]}

机构：

[1] Shandong Univ, Sch Elect Engn, Jinan, Peoples R China

[2] Shandong Jianzhu Univ, Sch Informat & Elect Engn, Jinan, Peoples R China

来源：

2011 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2011年

关键词：

line protection; transmission lines; current differential protection;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents an improved current differential protective principle. Marti model of the transmission line is applied in this principle, which place emphasis on solving frequency-dependent line parameters. The operating current expressions for an internal fault are also deduced in frequency domain. Finally, simulating comparison have been carried out between the proposed protective principle and Bergeron model based protection for Chinese 1000kV UHVAC test demonstration project. Simulation results show that this improved principle has high reliability for both internal and external faults.

引用

页数：4

共 7 条

[1]

Dong Xinzhou, 2004, Automation of Electric Power Systems, V28, P19

[2]

Ge Yaozhong, 2007, NEW TYPES PROTECTIVE, P112

[3] ACCURATE MODELING OF FREQUENCY-DEPENDENT TRANSMISSION-LINES IN ELECTROMAGNETIC TRANSIENT SIMULATIONS [J].

MARTI, JR .

IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, 1982, 101 (01) :147-157

[4]

Wu Weihan, 1989, OVERVOLTAGE NUMERICA, P136

[5] A current differential relay for a 1000-kV UHV transmission line [J].

Xu, Z. Y. ;

Du, Z. Q. ;

Ran, L. ;

Wu, Y. K. ;

Yang, Q. X. ;

He, J. L. .

IEEE TRANSACTIONS ON POWER DELIVERY, 2007, 22 (03) :1392-1399

[6]

Zheng G., 2004, AUTOM ELECT POWER SY, V28, P1

[7]

Zheng Yuping, 2004, Automation of Electric Power Systems, V28, P50

← 1 →