Novel Equivalent Circuit of Switched Reluctance Machine with Iron Losses

Abstract

The objective of this paper is to present a method for determination of the equivalent circuit parameters of a switched reluctance machine (SRM), when the data for the magnetic-circuit material and geometry are unavailable and there is no magnetic coupling between the phases. The parameters of this circuit are: the phase resistance, the phase inductance and the iron loss resistance per phase. The phase inductance is dependent on the rotor position and phase current. The iron loss resistance is dependent on the iron loss current, rotor position and switching period of asymmetric power converter transistors. Both the phase inductance and iron loss resistance are nonlinear. Determination of these two parameters is independent of the phase resistance whose value is considered constant in the proposed SRM model. Experimental results obtained for one phase of the SRM at different rotor positions are presented.

Dinko Vukadinović

Full Professor | Department of Power Electronics and Control

Full professor at the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split, specialized in modern control systems for power electronic converters, electric motors, and generators. At the Power Electronics Research Laboratory, he leads experimental projects and develops advanced methods for regulating electrical machines and converters, while supervising doctoral research in these areas.

Mateo Bašić

Full Professor | Department of Power Electronics and Control

Full professor at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, with recent research interests related to the fields of power electronics and renewable energy sources, with a special focus on energy-efficient control of inverters, battery systems, wind turbines, photovoltaic sources and self-excited induction generators in microgrids - both in island operation and in grid-tie operation.