An alternative model for aerial multiconductor transmission lines excited by external electromagnetic fields based on the method of characteristics
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In this paper, a model of aerial multiconductor transmission lines with frequency-dependent electrical parameters for the simulation of time-domain electromagnetic transients due to incident electromagnetic fields is presented. The frequency dependency of the electrical parameters is taken into account using the penetration impedance; this allows applying the method of characteristics without having to resort to modal transformations. With this alternative approach, transforming the transmission line partial differential equations to ordinary differential equations is performed in the phase domain, which simplifies the mathematical development of the method and also the numerical solution. The validity of the proposed model is shown with five study cases involving different transmission systems and excitations.
KeywordsMulticonductor transmission lines External electromagnetic fields Electromagnetic transients Method of characteristics
Mr. Avisaí Sánchez-Alegria thanks the scholarship granted by the Consejo Nacional de Ciencia y Tecnología (Grand No. CVU 569017) of México.
- 4.Rusck S (1958) Induced lightning overvoltages on power transmission lines with special reference to the overvoltage protection of low voltage networks. Trans R Inst Technol 120:1–118Google Scholar
- 5.Chowdhuri P, Gross ETB (1967) Voltage surges induced on overhead lines by lighting strokes. Proc IEE 114(12):1899–1907Google Scholar
- 13.Paolone M, Nucci CA, Rachidi F (2001) A new finite difference time domain scheme for the evaluation of lightning induced overvoltage on multiconductor overhead lines. In: Proceedings of international conference on power system transaction, pp 596–602Google Scholar