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Energies 2014, 7(10), 6412-6433; doi:10.3390/en7106412

A Real-Time Sliding Mode Control for a Wind Energy System Based on a Doubly Fed Induction Generator

1
Engineering School of Vitoria, University of the Basque Country, Nieves Cano 12, 01006 Vitoria, Spain
2
Engineering School of Eibar, University of the Basque Country, Otaola, 29, 20600 Eibar, Spain
*
Author to whom correspondence should be addressed.
Received: 6 July 2014 / Revised: 11 September 2014 / Accepted: 29 September 2014 / Published: 9 October 2014
(This article belongs to the Special Issue Wind Turbines 2014)
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Abstract

In this paper, a real time sliding mode control scheme for a variable speed wind turbine that incorporates a doubly feed induction generator is described. In this design, the so-called vector control theory is applied, in order to simplify the system electrical equations. The proposed control scheme involves a low computational cost and therefore can be implemented in real-time applications using a low cost Digital Signal Processor (DSP). The stability analysis of the proposed sliding mode controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. A new experimental platform has been designed and constructed in order to analyze the real-time performance of the proposed controller in a real system. Finally, the experimental validation carried out in the experimental platform shows; on the one hand that the proposed controller provides high-performance dynamic characteristics, and on the other hand that this scheme is robust with respect to the uncertainties that usually appear in the real systems. View Full-Text
Keywords: real time control; wind turbine systems; variable structure control; nonlinear system real time control; wind turbine systems; variable structure control; nonlinear system
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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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MDPI and ACS Style

Barambones, O.; Cortajarena, J.A.; Alkorta, P.; de Durana, J.M.G. A Real-Time Sliding Mode Control for a Wind Energy System Based on a Doubly Fed Induction Generator. Energies 2014, 7, 6412-6433.

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