摘要
首先,针对高超声速飞行器(Hypersonic Vehicle,HSV)再入过程中的横侧向机动控制问题,参考BTT控制方式,通过对航迹和姿态角回路的控制,实现了HSV的无侧滑横向机动转弯;其次,针对机动飞行中的不确定控制问题,提出了改进滑模干扰观测器(Improved Sliding Mode Disturbance Observer,ISMDO)来对参数不确定及外界干扰进行估计。在此基础上,提出了基于ISMDO的非线性广义预测控制方法作为HSV的机动飞行控制算法。仿真结果表明,该控制策略对再入横向机动具有良好的控制和干扰抑制能力。
For the control of lateral maneuver for the hypersonic vehicle（ HSV） during reentry,the lateral turning without sideslip is realized by referring to the bank-to-turn（ BTT） control mode and the control of the path loop and attitude angle loop. Second,for the control problem with uncertainty during maneuver flight,the improved sliding mode disturbance observer（ ISMDO） is proposed to estimate parameter uncertainties and external disturbances. On the basis of this,the nonlinear generalized predictive control（ NGPC） method based on ISMDO is presented as the control algorithm of the HSV maneuver flight. The simulation results show that the control strategy possesses good control and interference suppression capability for lateral maneuver during reentry.
出处
《飞行力学》
CSCD
北大核心
2015年第2期134-139,共6页
Flight Dynamics
基金
国家自然科学基金资助(61304099)
中央高校基本科研业务费资助课题(NS2013084)
