RT info:eu-repo/semantics/article T1 Feasibility of a Simple Small Wind Turbine with Variable-Speed Regulation Made of Commercial Components A1 Bravo Cuesta, Andrés A1 Gómez Gil, Francisco Javier A1 Martín Fraile, Juan Vicente A1 Ausín Rodríguez, Jesús A1 Ruiz Calvo, Justo A1 Peláez Vara, Jesús K1 very small wind turbine K1 asynchronous generator K1 asynchronous generator K1 Ingeniería mecánica K1 Mechanical engineering AB The aim of this study was to propose and evaluate a very small wind turbine(VSWT) that competes with commercial grid-connected VSWTs in terms of simplicity,robustness and price. Its main components are a squirrel-cage induction generator (SCIG)driven by a frequency converter. The system has a direct-drive shaft, and may beconstructed with commercial equipment. Simulation of the wind turbine effect is done witha motor. A control program regulates the variable-speed of rotation through threeoperational modes: (i) to drive the turbine to its optimum operation point; (ii) to limit itsmaximum rotational speed; and (iii) to limit the maximum power it generates. Two testswere performed, in order to evaluate the dynamic response of this system under variablewind speeds. The tests demonstrate that the system operates at the optimum operationalpoint of the turbine, and within the set limits of maximum rotational speed and maximumgenerated power. The drop in performance in relation to its nominal value is about 75%,when operating at 50% of the nominal power. In summary, this VSWT with its proposedcontrol program is feasible and reliable for operating direct-shaft grid-connected VSWTs. PB MDPI SN 1996-1073 YR 2013 FD 2013-07 LK http://hdl.handle.net/10259/4375 UL http://hdl.handle.net/10259/4375 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 04-dic-2024