Title :
Novel method of live line measuring the zero sequence parameters of transmission lines with mutual inductance
Author :
Hu, Zhijian ; Xu, Zhongzhu ; Fan, Jiacheng ; Chen, Mi
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
Based on GPS technology, a new average current method (ACM) of live line measuring the parameters of transmission lines with mutual inductance is proposed. The mathematical model of the new method is explained in detail. Digital simulation results are shown. Finally, an example of live line measuring four 220-kV transmission lines with mutual inductances in South China power grid is given. Comparison of results between ACM and an increment equation method (IEM) is also shown. The field measurement results prove that the new method can meet the needs of live line measurement of transmission lines´ inductance parameters.
Keywords :
Global Positioning System; power grids; power measurement; power transmission lines; GPS technology; South China power grid; average current method; digital simulation; live line measurement; mathematical model; mutual inductance; power transmission lines; voltage 220 kV; zero sequence parameters; Current measurement; Digital simulation; Equations; Global Positioning System; Inductance measurement; Mathematical model; Power grids; Power measurement; Power transmission lines; Transmission line measurements; Global Positioning System; live line measurement; power system; transmission lines; zero sequence parameters;
Conference_Titel :
Power & Energy Society General Meeting, 2009. PES '09. IEEE
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-4241-6
DOI :
10.1109/PES.2009.5275825
