Departmental Bulletin Paper A Study on Modeling of a Surge Protection Device

Nagatomo, Kohei  ,  Muslim, Muhammad Aziz  ,  Tamura, Hiroki  ,  Tanno, Koichi  ,  WIJONO

44pp.109 - 116 , 2015-07-31 , 宮崎大学工学部
This paper presents a modeling of a surge protection device based on V-t curve characteristic. Metal oxide varistor (MOV) is one of common surge protection devices to protect following electric devices from over-voltage such as the lightning and electrostatic discharge (ESD) by controlled the supplied surge voltage. It has been known well that MOV has non-linear characteristic between current and supplied voltage, and the I-V characteristic has been modeled by learning system in earlier papers. This paper focuses on a different characteristic of MOV, supplied voltage and control time. To model the V-t curve, the analysis using multiple regression analysis (MRA) and adaptive network based-fuzzy inference system (ANFIS) will be used with several datasets obtained by a high-voltage experiment concerning to the varistor. The results obtained from those learning systems show the V-t curve has possible to be elements for modeling the varistor as a voltage control device.

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