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Energies 2016, 9(5), 321; doi:10.3390/en9050321

Energy Transformations in a Self-Excited Switched Reluctance Generator

Department of Electronics Engineering and Communications, University of Zaragoza, 50018 Zaragoza, Spain
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Academic Editor: Jihong Wang
Received: 4 February 2016 / Revised: 23 March 2016 / Accepted: 20 April 2016 / Published: 28 April 2016
(This article belongs to the Special Issue Energy Efficient Actuators and Systems)
View Full-Text   |   Download PDF [4755 KB, uploaded 28 April 2016]   |  

Abstract

Wind generation systems require mechanisms that allow optimal adaptation of the generator to varying wind speed and to extract maximum energy from the wind. Robust and affordable high-performance methods are also needed for isolated sites. This paper takes this approach, in which an AC switched reluctance generator is used as a generator with a variable rotor speed. Although the voltage obtained is of insufficient quality to connect the generator directly to the power grid, this kind of generator can be used in isolated sites to charge a battery bank with a simple bridge rectifier. Due to the nonlinear behavior of the machine with the position and current, along with the alternating nature of the current that circulates through its phases, the machine experiences cyclical energy transformations of a mechanical, electrical and magnetic nature. This paper analyzes these transformations for the purpose of providing guidelines for machine design and optimization as a wind turbine in isolated sites. View Full-Text
Keywords: AC generators; parametric oscillators; reluctance generators; tunable oscillators AC generators; parametric oscillators; reluctance generators; tunable oscillators
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Martinez-Iturbe, A.; Perez-Cebolla, F.J.; Martín-del-Brío, B.; Bernal, C.; Bono-Nuez, A. Energy Transformations in a Self-Excited Switched Reluctance Generator. Energies 2016, 9, 321.

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