Open AccessMethod to design saturated iron‐core fault current limiters
Author(s) -
Baferani Mohamadreza Arab,
Fahimi Navid,
Shayegani Amir Abbas
Publication year - 2019
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2019.0546
Subject(s) - limiter , current (fluid) , fault current limiter , core (optical fiber) , fault (geology) , reliability engineering , nuclear engineering , computer science , electrical engineering , engineering , geology , physics , telecommunications , seismology , thermodynamics , electric power system , power (physics)
Fault current limiter (FCL) is a kind of device with current‐dependent impedance that has low impedance in normal state of power system, and high impedance during fault condition. Among all classes of FCLs, the saturated iron‐core FCL (SICFCL) is practically the most favourable one nowadays. In this study, a numerical method for design and cost optimisation of SICFCLs is presented. It uses a set of constraints to ensure the desirable operation of the SICFCL based on its electrical and magnetic characteristics. For numerical calculations and optimisations, GAMS software has been used. Suitability of the method is approved by design, simulation and test of a 3500 VA prototype. Magnetic field distributions are simulated using COMSOL Multiphysics and performance of the designed SICFCL is evaluated in a power system hardware model. Simulation and experimental results show the satisfying agreement with predicted results by the proposed numerical method.