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

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

For EHV/UHV transmission lines, the effects of distribution capacitance of lines on the parameter measurement can't be neglected. A new method of measuring the zero sequence parameters of double-circuit EHV/UHV transmission lines with mutual inductance based on distribution parameter model and GPS technology is proposed. The distribution parameter model of double-circuit transmission lines is established and the independent measurement cases for both live line and no live line measurement are given. The calculation formulae for solving the zero-sequence parameters of lines are derived. The parameter measurement for double-circuit EHV/UHV transmission lines from 300 km to 1600 km is simulated and compared with the traditional measurement method. Simulation results have validated that the new method can greatly improve the accuracy of the parameter measurement of EHV/UHV transmission lines.

Zhijian Hu | Meiling Jiang | Ziyong Zhang | Chuanqi Li

[1] Zheng Gang. LIVE LINE PARAMETER MEASUREMENT OF TRANSMISSION LINES WITH MUTUAL INDUCTANCE BASED ON GPS TECHNOLOGY AND INTEGRAL EQUATIONS , 2005 .

[2] Li Shusen. Discussion on Live Line Measurement of the Parameters of the Transmission Lines with Four-circuit on a Tower , 2006 .

[3] Liang Zhi-rui. Parameters Estimation for Zero-sequence Parameter On-line Measurement of Transmission Lines with Mutual Inductance , 2009 .

[4] Yunping Chen,et al. New Method of Live Line Measuring the Inductance Parameters of Transmission Lines Based on GPS Technology , 2008, IEEE Transactions on Power Delivery.

[5] Lu Ming. Power Frequency Parameter Measurement Technology for UHV Transmission Lines and Its Application , 2009 .

[6] P. Cochat,et al. Et al , 2008, Archives de pediatrie : organe officiel de la Societe francaise de pediatrie.

[7] Long Hou-jun. PRINCIPLES AND REALIZATION OF LIVE LINE MEASUREMENT OF PARAMETERSOF TRANSMISSION LINES WITH MUTUAL INDUCTANCE BASEDON DIFFERENTIAL EQUATIONS , 2005 .