A precise measurement method for positive sequence parameters of EHV and UHV transmission lines and its application

Author

Tang, Jun ; Xu, Jiangang ; Qian, Jie ; Chen, Zhiyong ; Yin, Jian ; Gao, Yang ; Hu, Zhijian

Author_Institution

Suzhou Power Supply Co., Suzhou, China

Volume

2

fYear

2011

fDate

8-9 Sept. 2011

Firstpage

208

Lastpage

211

Abstract

A precise measurement method for positive sequence parameters of EHV and UHV AC transmission lines is proposed. The mathematical models are presented in detail. Global Positioning System (GPS) is used as the synchronous signal for the measurement carried out at different substations simultaneously. The measurement device and digital simulation results are given. Finally, the measurement results of two 500 kV AC transmission lines are given and compared with the measured results by traditional method. Results from both simulation and on-site measurement show that the proposed measurement method is feasible, and its measurement accuracy can satisfactorily meet the requirements of engineering measurement.

Keywords

Global Positioning System; power system measurement; power transmission lines; substations; EHV AC transmission lines; Global Positioning System; UHV AC transmission lines; digital simulation; measurement accuracy; on-site measurement; positive sequence parameters; precise measurement; substations; synchronous signal; voltage 500 kV; Current measurement; Global Positioning System; Impedance measurement; Power transmission lines; Transmission line measurements; Vectors; Voltage measurement; EHV and UHV transmission lines; GPS; measurement method; positive sequence parameter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering and Automation Conference (PEAM), 2011 IEEE

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9691-4

Type

conf

DOI

10.1109/PEAM.2011.6135093

Filename

6135093