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Reactor modelling with saturation characteristic and inter-phase magnetic coupling

Khalilifar, M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijepes.2020.106228
  3. Publisher: Elsevier Ltd , 2020
  4. Abstract:
  5. This paper develops a model for nonlinear three-phase inductors with magnetic coupling between phases along with saturation characteristics for each phase. It can be used in modelling reactors and/or transformers for resonance and ferroresonance studies in non-symmetrical operation of power systems. While three phase modelling of reactors and transformers in non-symmetrical analyses play vital role; currently, time domain simulation packages provide either “detailed saturation model for three phase inductors without magnetic coupling” or “three phase inductors with magnetic coupling without saturation characteristics”. The proposed model adds a set of controllable linear coupled inductance, which dynamically changes the inductance matrix to make core saturation characteristics for eight possible saturation statuses (including single- and double- and triple-phase saturated states). This model is implemented simply and accurately by using several linear coupled devices and user defined modelling capability in EMTPRV program. © 2020 Elsevier Ltd
  6. Keywords:
  7. Magnetic coupling ; Non-symmetrical operation mode ; Reactor model ; Saturation characteristics ; Electric inductors ; Electric power systems ; Inductance ; Magnetic couplings ; Magnetic resonance ; Magnetism ; Coupled devices ; Inductance matrix ; Modelling capabilities ; Operation of power system ; Reactor modelling ; Saturation characteristic ; Saturation model ; Time-domain simulations ; Time domain analysis
  8. Source: International Journal of Electrical Power and Energy Systems ; Volume 123 , December , 2020
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0142061520307729#!