New Method of Measuring the Zero Sequence Parameters of Double-Circuit EHV/UHV Transmission Lines

2012 ◽  
Author(s):  
Chuanqi Li ◽  
Zhijian Hu ◽  
Meiling Jiang ◽  
Ziyong Zhang
Keyword(s):  
Transmission Lines ◽  
New Method ◽  
Zero Sequence ◽  
Sequence Parameters ◽  
Uhv Transmission Lines

New Method of Measuring the Positive Sequence Parameters of Transmission Lines under Strong Interference Condition

2012 ◽  
Vol 614-615 ◽  
pp. 837-841
Author(s):  
Zhi Jian Hu ◽  
Xue Feng Liu ◽  
Juan Yang ◽  
Chuan Qi Li
Keyword(s):  
Transmission Lines ◽  
Measurement Procedure ◽  
New Method ◽  
Measuring System ◽  
Positive Sequence ◽  
Interference Condition ◽  
Strong Interference ◽  
Simulation Results ◽  
Sequence Parameters ◽  
The Mathematical Model

An approach to measure the positive sequence parameters of transmission lines based on harmonic method is introduced. The mathematical model and measurement procedure of the new method are explained in detail. The hardware structure of the measuring system based on GPS is given. The simulation results show that the new method can satisfactorily meet the need of measuring the positive sequence parameters of transmission lines under strong interference condition.

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