Vector control system of a self-excited induction generator including iron losses and magnetic saturation

Abstract

We propose a novel indirect rotor-flux-oriented control system of a self-excited induction generator with online calculated iron losses and magnetic saturation. Within the control system, the iron loss resistance is represented as a function of both the synchronous frequency and magnetizing flux, and the magnetizing inductance is represented as a function of the magnetizing current. Both iron losses and saturation characteristics were determined from no-load tests. The effectiveness of the proposed approach is verified through both simulations and experiments. Through a comparison with the conventional approach, insight is provided into the efficiency estimation error and detuning due to iron losses.

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.

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.