基于残差反馈控制的自动驾驶仪滚动回路设计研究

Autopilot Design of Roll Loop Based on Residual Signals Feedback Control Scheme

为满足战术导弹自动驾驶仪滚动回路面临的抑制严重干扰和稳定滚转姿态的需求,针对常规控制采用折中方法设计存在的问题,对基于残差反馈控制的自动驾驶仪滚动回路设计进行了研究,以解决系统鲁棒性与动态性能的矛盾。用Youla参数法分析标准闭环控制系统,提出针对被控对象发生模型摄动的控制策略:控制器分为两部分,针对无干扰等未建模特性的额定状态控制器和针对外来干扰、内部噪声等未建模特性时的残差信号反馈控制回路,分别保证系统稳定性、动态性能与鲁棒性。给出了自动驾驶仪滚动回路设计。用仿真与滑模变结构控制方法比较,验证了方法的有效性。

To satisfy the requirement of the serious disturbance suppress and roll attitude stabilization of roll loop in autopilot for tactic missile,the autopilot design of roll loop based on residual signals feedback control was studied for the problem in the trade-off method of the traditional control scheme in this paper,which would solve the conflict between robustness and dynamic performance.The standard closed-loop control system was analyzed by Youla parameter method.The control strategy while there was mode perturbation of the control object was put forward.The controller would be divided into two parts:one was the rated condition controller for no disturbance and the other was the residual signals feedback loop for disturbance and inner noise which would guarantee the stability,dynamics and robust respectively.The roll loop design of autopilot was given out.The effectiveness was validated by simulation comparison between the new method and the variable structure control method.