Title :
Energy-based controller for machine-side converter of doubly-fed wind generator
Author :
Song, Huihui ; Qu, Yanbin
Author_Institution :
Sch. of Inf. Sci. & Eng., Harbin Inst. of Technol. at Weihai, Weihai, China
Abstract :
A novel energy-based control strategy to determine the switch functions of the machine-side conveter (MSC) in a doubly-fed wind generator is proposed in this paper. From the energy shaping perspective, a port-controlled hamiltonian (PCH) description for the wind energy conversion system (WECS) is obtained. Based on the description and the enegy- matching equation, the proposed switch functions enable us to realize maximum power extraction by tracking equilibrium point in the power optimization stage. This approach possesses the advantages of stable tracking performance and rapid convergence rate. Simulation results via Matlab/Simulink for 2MW WECS with a doubly fed induction generator (DFIG) confirmed its effectiveness.
Keywords :
asynchronous generators; power convertors; wind power plants; doubly-fed wind generator; energy-based controller; machine-side converter; port-controlled Hamiltonian description; power optimization stage; switch functions; wind energy conversion system; Automation; Intelligent control; energy-based control; machine-side converter; port-controlled Hamilton; wind energy;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554810
