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Improved Gyrator-Capacitor Modeling of Magnetic Circuits with Inclusion of Magnetic Hysteresis

Hayerikhiyavi, Mohammadali and Dimitrovski, Aleksandar (2021): Improved Gyrator-Capacitor Modeling of Magnetic Circuits with Inclusion of Magnetic Hysteresis.

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Abstract

Gyrator-Capacitor (G-C) models of electro¬magnetic devices provide a robust and convenient approach for simulation of a combined power device that consists of magnetic and electric/electronic circuits. The G-C model seamlessly links magnetic and electric/electronic sides of the device in a power invariant fashion which is very useful for integrated system analysis. This paper proposes an improved G-C model that includes hysteresis besides the core saturation for a ferromagnetic circuit. The approach has been applied to model a Continuously Variable Series Reactor (CVSR) with electromagnetic coupling between two circuits, a control dc and a controlled ac circuit. Taking into account the ferromagnetic core nonlinearities, the CVSR behaviour is investigated in terms of induced voltages across the windings and corresponding magnetic flux densities.

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