Analysis of Electromagnetic Field Effects Using FEM for Transmission Lines Transposition

This paper presents the mathematical model of electric field and magnetic field in transmission system, which performs in second-order partial differential equation. This research has conducted analyzing the electromagnetic field radiating to atmosphere around the transmission line, when there is the transmission line transposition in case of long distance distribution. The six types of 500 kV transposed HV transmission line with double circuit will be considered. The computer simulation is applied finite element method that is developed by MATLAB program. The problem is considered to two dimensions, which is time harmonic system with the graphical performance of electric field and magnetic field. The impact from simulation of six types long distance distributing transposition will not effect changing of electric field and magnetic field which surround the transmission line.

• S. Tupsie
• A. Isaramongkolrak
• P. Pao-la-or

• Transposition
• Electromagnetic Field
• Finite Element Method (FEM)
• Transmission Line
• Computer Simulation

[1] R.G. Olsen, D. Deno, R.S. Baishiki, J.R. Abbot, R. Conti, M. Frazier,
K. Jaffa, G.B. Niles, J.R. Stewart, R. Wong and R.M. Zavadil,
"Magnetic Fields from Electric Power Lines Theory and Comparison to
Measurements," IEEE Transactions on Power Delivery, Vol. 3, No. 4,
pp.2127-2136, 1988.
[2] L. Li and G. Yougang, "Analysis of Magnetic Field Environment near
High Voltage Transmission Lines," Proceedings of the International
Conferences on Communication Technology, pp.S26-05-1 - S26-05-5,
1998.
[3] M.V.K. Chari and S.J. Salon, Numerical Methods in Electromagnetism,
Academic Press, USA, 2000.
[4] M. Weiner, Electromagnetic Analysis Using Transmission Line
Variables, World Scientific Publishing, Singapore, 2001.
[5] C. Christopoulos, The Transmission-Line Modeling Method: TLM, IEEE
Press, USA, 1995.
[6] P. Pao-la-or, T. Kulworawanichpong, S. Sujitjorn and S. Peaiyoung,
"Distributions of Flux and Electromagnetic Force in Induction Motors:
A Finite Element Approach," WSEAS Transactions on Systems, Vol. 5,
No. 3, pp.617-624, 2006.
[7] P. Pin-anong, The Electromagnetic Field Effects Analysis which
Interfere to Environment near the Overhead Transmission Lines and
Case Study of Effects Reduction, M. Eng. Thesis, King Mongkut-s
Institute of Technology Ladkrabang, Bangkok, Thailand, 2002.
[8] T.W. Preston, A.B.J. Reece and P.S. Sangha, "Induction Motor
Analysis by Time-Stepping Techniques," IEEE Transactions on
Magnetics, Vol. 24, No. 1, pp.471-474, 1988.
[9] B.T. Kim, B.I. Kwon and S.C. Park, "Reduction of Electromagnetic
Force Harmonics in Asynchronous Traction Motor by Adapting the
Rotor Slot Number," IEEE Transactions on Magnetics, Vol. 35, No. 5,
pp.3742-3744, 1999.
[10] G.B. Iyyuni and S.A. Sebo, "Study of Transmission Line Magnetic
Fields," Proceedings of the Twenty-Second Annual North American,
IEEE Power Symposium, pp.222-231, 1990.
[11] Jr.W.H. Hayt and J.A. Buck, Engineering Electromagnetics (7th
edition), McGraw-Hill, Singapore, 2006.