The research on the affection of the Qinghai-Tibet HVDC transmission system upon operating characteristic of the line protection in Qing-Hai AC electrical power system

Author

Li Hongzhi ; Wang Ning Xia ; Guo Junru

Author_Institution

Qinghai Electr. Power Corp., Xining, China

fYear

2012

fDate

10-14 Sept. 2012

Firstpage

1

Lastpage

8

Abstract

Based on ±400 kV Qinghai-Tibet HVDC transmission system, the paper build a closed loop simulation system used HyperSim system and HVDC control protection device. Used this system, the paper researched the impedance characteristics and harmonic constitute of Qinghai A.C. electrical power system in different faults, analyzed the proportion of harmonic component in voltage and electric while various faults at different point, and studied the impaction of directional protection, differential protection and distance protection for the AC transmission line according to the characteristics of protection operation.

Keywords

HVDC power transmission; closed loop systems; power transmission faults; power transmission protection; relay protection; AC transmission line; HVDC control protection device; HyperSim system; Qing-Hai AC electrical power system; Qinghai-Tibet HVDC transmission system; closed loop simulation; differential protection; directional protection; distance protection; harmonic component; line protection; operating characteristic; voltage -400 kV to 400 kV; HVDC; closed loop test; harmonic component; line protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electricity Distribution (CICED), 2012 China International Conference on

Conference_Location

Shanghai

ISSN

2161-7481

Print_ISBN

978-1-4673-6065-4

Electronic_ISBN

2161-7481

Type

conf

DOI

10.1109/CICED.2012.6508541

Filename

6508541