کنفرانس مهندسی برق ایران

صفحه اصلی / سی و دومین کنفرانس بین المللی مهندسی برق

Multiphysics Simulation of the Modified Flux Coupling Type SFCL in VSC-HVDC Network

نویسندگان :

Mohammad Khakroei¹ Ashkan Mirzaei Rajeooni² Mahdi Rahimi Pirbasti³ Hossein Heydari⁴

1- Mapna Electric & Control Engineering & Manufacturing 2- MAPNA Generator Engineering and Manufacturing company (PARS) 3- Iran University of Science and Technology (IUST) 4- Iran University of Science and Technology (IUST)

کلمات کلیدی :

DC fault current،Finite Element Method (FEM)،Modified Flux Coupling type SFCL،Multiphysics،VSC-HVDC

چکیده :

In spite of many justifications for the implementation of Voltage Converter-Based HVDC (VSC-HVDC) systems, one of the key barriers to implementing these systems is the absence of DC circuit breakers in high capacities. A superconducting fault current limiter (SFCL) can quickly limit the fault current and effectively decrease the tension on the DC circuit breaker. In this paper, a modified flux-coupling type SFCL (MFC-SFCL) has been proposed to prevent surge current in VSC-HVDC power systems, which has better performance than what has previously been presented. These achieve by multi-physical simulations of a MFC-SFCL which depend on multilateral interaction effects among the three critical delimited superconductivity parameters: current, temperature, and magnetic field, as well as dependent impedance in addition to other specifications in the external power system. As such, the incorporation model on detail involves an interplay or synergy among electrical conductivity, magnetic, and thermal properties. This modeling needs advanced numerical techniques for performing the concurrent processing of the Multiphysics simulations using the Finite Element Method (FEM). Moreover, the analysis of the leakage flux densities and the corresponding electromagnetic forces on the superconducting windings of the SFCL under fault conditions is a further object of this paper.