@MASTERSTHESIS\{IMM2007-05537, author = "J. G. Quirante", title = "Control of Wind Turbines for Power Regulation and Load Reduction", year = "2007", school = "Informatics and Mathematical Modelling, Technical University of Denmark, {DTU}", address = "Richard Petersens Plads, Building 321, {DK-}2800 Kgs. Lyngby", type = "", note = "Supervised by Assoc. Prof. Niels K. Poulsen, {IMM,} {DTU,} Prof. Henrik Madsen, {IMM,} {DTU,} and Senior Scientist Peter Hauge Madsen, Siemens Wind Power A/S", url = "http://www2.compute.dtu.dk/pubdb/pubs/5537-full.html", abstract = "This thesis describes the design of controllers for power regulation and load reduction and their ensemble in a variable-speed wind turbine. The power regulation is carried out by manipulating the generator torque and/or the pitch angle of all blades, namely collective pitch angle, conveniently for a given wind speed. The model predictive control theory is used for the design of this controller. The load reduction problem is achieved by modifying the collective pitch angle derived from the power regulation problem, by a fine individual component. Two methods for calculating this individual component are presented: cyclic and individual pitch control." }