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Energies 2017, 10(12), 2168;

Adjusting the Parameters of Metal Oxide Gapless Surge Arresters’ Equivalent Circuits Using the Harmony Search Method

Department of Electrical and Computer Engineering, University of Thessaly, 382 21 Volos, Greece
Department of Electrical and Electronic Engineering Educators, A.S.P.E.T.E.—School of Pedagogical and Technological Education, 141 21 Heraklion, Greece
Innovative Energy and Information Technologies LTD, 1387 Sofia, j.k. Obelia 1, bl. 118, ent. A, app. 6, Bulgaria
Author to whom correspondence should be addressed.
Received: 26 November 2017 / Revised: 11 December 2017 / Accepted: 13 December 2017 / Published: 18 December 2017
(This article belongs to the Section Electrical Power and Energy System)
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The appropriate circuit modeling of metal oxide gapless surge arresters is critical for insulation coordination studies. Metal oxide arresters present a dynamic behavior for fast front surges; namely, their residual voltage is dependent on the peak value, as well as the duration of the injected impulse current, and should therefore not only be represented by non-linear elements. The aim of the current work is to adjust the parameters of the most frequently used surge arresters’ circuit models by considering the magnitude of the residual voltage, as well as the dissipated energy for given pulses. In this aim, the harmony search method is implemented to adjust parameter values of the arrester equivalent circuit models. This functions by minimizing a defined objective function that compares the simulation outcomes with the manufacturer’s data and the results obtained from previous methodologies. View Full-Text
Keywords: circuit model; harmony search method; optimization; surge arrester circuit model; harmony search method; optimization; surge arrester

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Christodoulou, C.A.; Vita, V.; Perantzakis, G.; Ekonomou, L.; Milushev, G. Adjusting the Parameters of Metal Oxide Gapless Surge Arresters’ Equivalent Circuits Using the Harmony Search Method. Energies 2017, 10, 2168.

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