Active generalized predictive control of turbine tip clearance for aero-engines

作者：Kai, Peng; Ding, Fan^*; Fan, Yang; Qiang, Fu; Yong, Li

来源：Chinese Journal of Aeronautics, 2013, 26(5): 1147-1155.

DOI：10.1016/j.cja.2013.07.005

• Active clearance control (ACC)
• Aero-engine
• Aircraft
• Generalized predictive control (GPC)
• Global convergence
• Robust perturbation radius
• Turbine tip clearance

Active control of turbine blade tip clearance continues to be a concern in design and control of gas turbines. Ever increasing demands for improved efficiency and higher operating temperatures require more stringent tolerances on turbine tip clearance. In this paper, a turbine tip clearance control apparatus and a model of turbine tip clearance are proposed; an implicit active generalized predictive control (GPC), with auto-regressive (AR) error modification and fuzzy adjustment on control horizon, is presented, as well as a quantitative analysis method of robust perturbation radius of the system. The active clearance control (ACC) of aero-engine turbine tip clearance is evaluated in a lapse-rate take-off transient, along with the comparative and quantitative analysis of the stability and robustness of the active tip clearance control system. The results show that the resultant active tip clearance control system with the improved GPC has favorable steady-state and dynamic performance and benefits of increased efficiency, reduced specific fuel consumption, and additional service life.

• 出版日期2013-10
• 单位中国人民解放军空军工程大学; 中国民用航空飞行学院; 西北工业大学