Finite Element Approach to Electric Field Distribution Resulting from Phase-sequence Orientation of a Double- Circuit High Voltage Transmission Line
نویسندگان
چکیده
This paper proposes a mathematical model of electric fields caused by high voltage conductors of electric power transmission systems by using a set of second-order partial differential equations. This study has considered the effect of conductor phase-sequence orientation on electric fields emitted around a doublecircuit, extra high-voltage, power transmission line. Six typical-used phase-sequence orientations in Thailand for 500-kV double-circuit transmission lines are investigated. Computer-based simulation utilizing the two dimensional finite element method in the time harmonic mode, instructed in MATLAB programming environment with graphical representation for electric field strength has been evaluated. The simulation results show that the phase-sequence orientation is one among key factors to influence the electric field distribution around the transmission line. Key-Words: Phase-sequence, Electric Fields, Finite Element Method (FEM), Transmission Line, Computer Simulation
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