An ATP-EMTP Monte Carlo procedure for backflashover rate evaluation

Author

Gatta, F.M. ; Geri, A. ; Lauria, S. ; Maccioni, M. ; Santarpia, A.

Author_Institution

Dept. of Astronaut., Electr. & Energetics Eng. (DIAEE), Sapienza Univ. of Rome, Rome, Italy

fYear

2012

fDate

2-7 Sept. 2012

Firstpage

1

Lastpage

6

Abstract

The paper presents the ATP-EMTP implementation of a Monte Carlo procedure aimed at evaluating the backflashover rate (BFOR) of an HV overhead line (OHL). The ATP-EMTP circuit model of the OHL includes detailed line insulation and lightning representation; spatially extended and/or involved grounding systems are represented by a new, simplified model which reproduces the effects of propagation and soil ionization phenomena; statistical input data concerning lightning polarity, lightning stroke parameters (peak current, front and tail times), lightning location, line insulation and phase angle of the supply voltage. An external software engine generates all the required statistically-oriented ATP-EMTP input data, sequentially launches and manages ATP simulations and post-processes all results. An application on a 150 kV - 50 Hz typical Italian OHL is reported and discussed.

Keywords

EMTP; Monte Carlo methods; earthing; flashover; power overhead lines; ATP-EMTP circuit model; BFOR; HV overhead line; Italian OHL; Monte Carlo procedure; backflashover rate evaluation; external software engine; frequency 50 Hz; front times; grounding systems; lightning polarity; lightning representation; lightning stroke parameters; line insulation; peak current; phase angle; propagation phenomena; soil ionization phenomena; statistical input data; supply voltage; tail times; voltage 150 kV; Indium phosphide; Lightning; ATP-EMTP; Backflashover rate; HV overhead line; Monte Carlo; grounding system;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning Protection (ICLP), 2012 International Conference on

Conference_Location

Vienna

Print_ISBN

978-1-4673-1898-3

Electronic_ISBN

978-1-4673-1896-9

Type

conf

DOI

10.1109/ICLP.2012.6344362

Filename

6344362