Application of the transfer matrix approach to direct lightning studies of overhead power lines with underbuilt shield wires Part I: Theory
Stracqualursi, E.
; Araneo, R.
;
Brandão Faria, J
; Andreoti, A.
IEEE Transactions on Power Delivery Vol. 37, Nº 02, pp. 1226 - 1233, April, 2022.
ISSN (print): 0885-8977
ISSN (online): 1937-4208
Scimago Journal Ranking: 1,92 (in 2022)
Digital Object Identifier: 10.1109/TPWRD.2021.3080525
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Abstract
This work is devoted to the analysis of voltages
produced on overhead distribution lines hit by direct lightning. We will consider arbitrary terminations at both line ends and, also, arbitrary positioning of the pole being struck. We will deal with lines protected by shield wires, placed either above or below the phase conductors. The analytical tools chosen to
deal with such complex system are the transfer matrix method and the theory of multiconductor transmission lines with periodic grounding. The innovation of an artificial symmetrical unit cell
has been introduced to eliminate the need of two characteristic wave impedance matrices and to ease computation flow.
