Open AccessMoving horizon ℋ ∞ control of variable speed wind turbines with actuator saturation
Author(s) -
Ma Miaomiao,
Chen Hong,
Liu Xiangjie,
Allgöwer Frank
Publication year - 2014
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2013.0095
Subject(s) - control theory (sociology) , turbine , wind power , actuator , wind speed , attenuation , variable (mathematics) , variable speed wind turbine , power (physics) , engineering , computer science , mathematics , physics , control (management) , meteorology , permanent magnet synchronous generator , aerospace engineering , electrical engineering , optics , quantum mechanics , mathematical analysis , artificial intelligence
This study suggests a moving horizon ℋ ∞ control scheme for variable speed wind turbines above the rated wind speed to maintain the output power at the rated value for variable operating points. A constrained ℋ ∞ control problem is solved at each sampling time with the update of not only the initial condition but also the prediction model based on different operating points. Closed‐loop properties inclusive of ℒ 2 disturbance attenuation are discussed in the framework of dissipation theory. The moving horizon ℋ ∞ control considers the non‐linear dynamic aspect of the wind turbine, the turbulent nature of the wind and actuator saturations. Analysis and simulation results for WD34 wind turbine show possible improvements on the output electrical power regulation performance for variable operating points, while respecting actuator saturation limits.