基于自抗扰技术的高超声速飞行器控制系统设计

高超声速飞行器在飞行过程中超燃冲压发动机对攻角及侧滑角有较严格的要求,为实现对攻角及侧滑角的精确控制,文章采用自抗扰控制技术设计了高超声速飞行器的攻角自动驾驶仪;首先建立高超声速飞行器控制系统的数学模型,然后采用扩张状态观测器对受扰对象的状态和干扰进行观测,并对状态误差采用非线性反馈,对观测的干扰进行补偿,从而实现对干扰的快速抑制和对指令的精确跟踪,最后仿真表明所设计的自动驾驶仪满足性能要求,验证了该方法的正确性。

Design of Hypersonic Vehicle Control System Based on Auto Disturbance Rejection Control

Hypersonic vehicle's engine requires strictly for angle of attack and angle of sideslip when it is flying.To realize the precise control for angle of attack and angle of sideslip,angle of attack autopilot is designed with auto disturbance rejection.First,the object mode is established.Then,the system's state and the disturbance are estimated using the extended state observer.The state error is feedbacked nonlinearly and the disturbance is compensated in order to track the dictates accurately.Finally,through...