Nonlinear hierarchy-structured predictive control design for a generic hypersonic vehicle
Nonlinear hierarchy-structured predictive control design for a generic hypersonic vehicle作者机构:College of Aerospace Science and EngineeringNational University of Defense Technology
出 版 物:《Science China(Technological Sciences)》 (中国科学(技术科学英文版))
年 卷 期:2013年第56卷第8期
页 面:2025-2036页
核心收录:
学科分类:08[工学] 081105[工学-导航、制导与控制] 0811[工学-控制科学与工程]
主 题:generic hypersonic vehicle flight control predictive control hierarchy-structured robustness
摘 要:A hierarchy-structured predictive controller is designed and analyzed for rotation motion dynamics of a generic hypersonic vehicle(GHV).This vehicle model has fast variability,is highly nonlinear,and includes uncertain *** controller contains two subsystems,the inner-fast-loop nonlinear generable predictive controller(NGPC)and the outer-slow-loop NGPC,both of which are designed by the closed-form optimal generable predictive control ***,the heavy on-line computational burden in the classical predictive control method is *** hierarchy structure of the control system decreases the relative degree of each subsystem and helps increase the dynamic response speed of the attitude *** order to improve the robustness of the control system,a feedback correction algorithm is proposed that corrects the calculation error between the predictive model and the real dynamic *** studies are conducted for the trimmed cruise conditions of an altitude of 33.5 km and Mach 15 to investigate the responses of the vehicle to the step commands of angle of attack,sideslip angle,and bank *** simulation studies demonstrate that the proposed controller is robust with respect to the parametric uncertainties and atmospheric disturbance,and meets the performance requirements of GHV with acceptable control inputs.