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吸气式高超声速飞行器飞行过程中舵偏不能过大,攻角、角速率等飞行状态必须满足约束,这既是超燃冲压发动机工作条件的要求,也是为了减小飞行器状态散布。针对吸气式高超声速飞行器进行高度控制时,飞行器状态和舵偏必须满足约束的实际问题,引入指令调节器进行高度回路设计。基于PI+LQ方法设计过载控制器,利用高度回路的比例-微分产生过载信号,过载信号经过指令调节器生成调节指令,过载控制器跟踪该指令完成高度跟踪。仿真结果表明,该方法设计的控制系统在阵风干扰情况下能够满足状态约束并实现快速跟踪。
Aspiration hypersonic aircraft during the flight can not be too large, the angle of attack, angular velocity and other flight conditions must meet the constraints, which is both scramjet engine working conditions, but also to reduce the aircraft state spread. For the height control of the aspirated hypersonic vehicle, the state of the aircraft and the rudder deflection must meet the practical constraints and introduce the command conditioner for the height loop design. The overload controller is designed based on the PI + LQ method. The overload signal is generated by the proportional-derivative of the height loop. The overload signal is generated by the command regulator and the overload controller tracks the command to complete the altitude tracking. The simulation results show that the control system designed by this method can meet the state constraints and achieve fast tracking under gust disturbance.