Title :
LPV multi-objective robust control of wind energy conversion system
Author :
Wu Dinghui ; Li Yiyang ; Wang Li ; Ji Zhicheng
Author_Institution :
Inst. of Electr. Autom., Jiangnan Univ., Wuxi, China
Abstract :
In light of the multi-time scale characteristic of the wind velocity, and the normalized double-frequency model of wind energy conversion system (WECS), a linear parameter varying (LPV) model is established. The PI controller is used in the low-frequency loop, and the H∞ gain scheduling control method is adopted in the high-frequency loop. Simulation results depict that the coalition of double-frequency control compensate the controller dynamically, and the proposed method can not only reduce the sensitivity of system steady-state operation point, but also have better dynamic and static characteristics.
Keywords :
H∞ control; PI control; compensation; frequency control; linear systems; robust control; sensitivity analysis; velocity control; wind power plants; H∞ gain scheduling control method; LPV model; LPV multiobjective robust control; PI controller; WECS; double-frequency control compensation; dynamic characteristics; high-frequency loop; linear parameter varying model; low-frequency loop; multitime scale characteristic; normalized double-frequency model; static characteristics; system sensitivity; system steady-state operation point; wind energy conversion system; wind velocity; Rotors; Sensitivity; Torque; Wind energy; Wind power generation; Wind speed; Wind turbines; Gain Scheduling Control; LPV Model; PI Control; Wind Energy Conversion System;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
