Title :
Modelling and control in Wind Energy Conversion Systems (WECS)
Author :
González, L.G. ; Figueres, E. ; Garcerá, G. ; Carranza, O.
Author_Institution :
Dept. De Ing. Electron. Y Comun., Univ. De Los Andes, Merida, Venezuela
Abstract :
This paper encompasses the study of modelling and design of WECS, using a wind turbine with known dynamic characteristics and a permanent magnet synchronous generator driven by a back to back power converter topology. The dynamic modeling allows to know the response of the turbine generator system in the whole range of operation. In this study, it is proposed a variable structure control scheme with two different kind of operation, namely maximum power point tracking (MPPT) and constant power (CP). In the CP region, it is demonstrated that the system is controllable with the speed control loop while that using torque control an unstable control loop results.
Keywords :
angular velocity control; direct energy conversion; machine control; permanent magnet generators; power convertors; synchronous generators; torque control; variable structure systems; wind turbines; back to back power converter topology; constant power; maximum power point tracking; permanent magnet synchronous generator; speed control loop; torque control; variable structure control scheme; wind energy conversion system control; wind turbine; Control systems; Magnetic variables control; Permanent magnets; Power system modeling; Synchronous generators; Topology; Torque control; Wind energy; Wind energy generation; Wind turbines; Direct torque and flux control; Permanent magnet motor; Renewable energy systems; Vector control; Wind energy;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
