Title :
Energy-based control with L2 disturbance attenuation for machine-side doubly-fed wind generator
Author :
Song Huihui ; Qu Yanbin
Author_Institution :
Harbin Inst. of Technol. at Weihai, Weihai, China
Abstract :
Torque disturbances caused by the aerodynamic loads are the main influence factors on performance of the machine-side control in the wind energy conversion system (WECS). Based on port-controlled Hamiltonian (PCH) modeling theory, the machine-side subsystem of the WECS with the disturbances from the wind turbine was described by a novel PCH model with bounded unknown disturbances in this paper. Moreover, a new energy-based control with L2 disturbance attenuation was proposed to attain the machine-side control objectives upon the designed model. Simulations were performed with a 2MW WECS and the results showed that the proposed control can realize the maximum wind power extraction well and possess good control performance under disturbances.
Keywords :
aerodynamics; control system synthesis; machine control; power control; power generation control; wind power; wind turbines; L2 disturbance attenuation; aerodynamic loads; energy-based control; machine-side control; machine-side doubly-fed wind generator; port-controlled Hamiltonian modeling theory; torque disturbances; wind energy conversion system; wind turbine; Attenuation; Generators; Rotors; Torque; Wind energy; Wind power generation; Wind turbines; Doubly-fed induction generator; Energy-based control; L2 disturbance attenuation; Wind energy;
Conference_Titel :
Control Conference (CCC), 2011 30th Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4577-0677-6
Electronic_ISBN :
1934-1768