Research on transmission lines multi current differential relay scheme

被引：1

作者：

Wu, Dali ^{[1
]}

Yin, Xianggen ^{[1
]}

Zhang, Zhe ^{[1
]}

Zhang, Kanjun ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Dept Elect Engn, Wuhan 430074, Hubei Province, Peoples R China

来源：

2007 42ND INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE, VOLS 1-3 | 2007年

关键词：

transmission line protection; differential protection; sampled value based differential protection; current transformer saturation;

D O I：

10.1109/UPEC.2007.4468964

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：

As two form of differential protection applied dominantly, phasor value based differential protection is easily influenced by current transformer saturation, and sampled value based differential protection must improve the performance response to slight internal faults. In this paper, multi different protection which combines phasor value based differential protection with sampled value based differential protection is proposed. In such scheme, the shortcoming of each differential theory is overcome and the merits are compensatory each other. The result of EMTP/ATP digital simulation indicates that the proposed scheme advances greatly the performances of differential protection for transmission line such as reliability, sensitiveness, trip speed and immunity to current transformer saturation. Especially the algorithm and logic of the proposed scheme are easily and experientially, so it can be suit for project application well.

引用

页码：300 / 304

页数：5

共 6 条

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