Title :
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
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;
Conference_Titel :
Power Engineering and Automation Conference (PEAM), 2011 IEEE
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9691-4
DOI :
10.1109/PEAM.2011.6135093
