Title :
Dynamics and control system design of an autonomous wind turbine
Author :
Neris, A.S. ; Vovos, N.A. ; Giannakopoulos, G.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Patras Univ., Greece
Abstract :
The dynamics of a 30 kW autonomous wind turbine (WT) driving a synchronous generator (SG) which supplies two reverse osmosis (RO) desalination units and a dump load are examined. The controlled dump load enables the control of electrical disturbances but the highly resonant, non-linear dynamic system determines the mechanical and electrical stresses caused by the wind speed disturbances. The desired dynamic characteristics have been achieved by specifying the required shaft stiffness and fluid coupling damping. The parameters of the proportional-integral (PI) controller influence the dynamic characteristics of the system and are carefully selected by a simple pole placement technique. The transient response of the system in large disturbances is recorded and analyzed using a developed detailed simulation program and the satisfactory response of the system in major disturbances is verified
Keywords :
control system synthesis; desalination; machine theory; nonlinear dynamical systems; osmosis; pole assignment; synchronous generators; transient analysis; two-term control; wind turbines; autonomous wind turbine; control system design; detailed simulation program; dump load; dynamic characteristics; electrical disturbances; fluid coupling damping; nonlinear dynamic system; pole placement technique; proportional-integral controller; reverse osmosis desalination units; shaft stiffness; synchronous generator; transient response; wind speed disturbances; Control systems; Desalination; Fluid dynamics; Nonlinear control systems; Nonlinear dynamical systems; Resonance; Reverse osmosis; Stress control; Synchronous generators; Wind turbines;
Conference_Titel :
Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on
Conference_Location :
Rodos
Print_ISBN :
0-7803-3650-X
DOI :
10.1109/ICECS.1996.584559
