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Energies 2015, 8(12), 13395-13418; doi:10.3390/en81212374

Overview of Modelling and Advanced Control Strategies for Wind Turbine Systems

Department of Engineering, University of Ferrara, Via Saragat 1E, Ferrara (FE) 44123, Italy
Academic Editor: Frede Blaabjerg
Received: 14 October 2015 / Revised: 6 November 2015 / Accepted: 13 November 2015 / Published: 25 November 2015
(This article belongs to the Special Issue Wind Turbine 2015)
View Full-Text   |   Download PDF [1463 KB, uploaded 25 November 2015]   |  

Abstract

The motivation for this paper comes from a real need to have an overview of the challenges of modelling and control for very demanding systems, such as wind turbine systems, which require reliability, availability, maintainability, and safety over power conversion efficiency. These issues have begun to stimulate research and development in the wide control community particularly for these installations that need a high degree of “sustainability”. Note that this represents a key point for offshore wind turbines, since they are characterised by expensive and/or safety critical maintenance work. In this case, a clear conflict exists between ensuring a high degree of availability and reducing maintenance times, which affect the final energy cost. On the other hand, wind turbines have highly nonlinear dynamics, with a stochastic and uncontrollable driving force as input in the form of wind speed, thus representing an interesting challenge also from the modelling point of view. Suitable control methods can provide a sustainable optimisation of the energy conversion efficiency over wider than normally expected working conditions. Moreover, a proper mathematical description of the wind turbine system should be able to capture the complete behaviour of the process under monitoring, thus providing an important impact on the control design itself. In this way, the control scheme could guarantee prescribed performance, whilst also giving a degree of “tolerance” to possible deviation of characteristic properties or system parameters from standard conditions, if properly included in the wind turbine model itself. The most important developments in advanced controllers for wind turbines are also briefly referenced, and open problems in the areas of modelling of wind turbines are finally outlined. View Full-Text
Keywords: wind turbine models; model-based control; control schemes; actuators and sensors; sustainability wind turbine models; model-based control; control schemes; actuators and sensors; sustainability
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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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Simani, S. Overview of Modelling and Advanced Control Strategies for Wind Turbine Systems. Energies 2015, 8, 13395-13418.

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