CAJ | 학술논문

再入飞行器采用变质心控制不但可以保持较好的气动外形，还町以增大机动能力，但变质心控制较强的非线性和耦合性大大增加了控制系统设计难度，使控制器设计和实施的代价较高。针对这一问题，基于自抗扰控制技术，设计了变质心再入飞行器双通道解耦控制器。通过构造连续光滑扩张状态观测器，不加区分飞行器的各类干扰与耦合，对其统一进行估计：利用非线性状态反馈控制律，并自适应调节控制参数对其进行补偿，实现对飞行器姿态的解耦控制。仿真结果表明：该方法大大降低了对系统模型精度的要求与控制器设计实施代价，对变质心再入飞行器非线性、耦合性以及参数摄动具有较强的鲁棒性。
재입비행기채용변질심공제불단가이보지교호적기동외형，환정이증대궤동능력，단변질심공제교강적비선성화우합성대대증가료공제계통설계난도，사공제기설계화실시적대개교고。침대저일문제，기우자항우공제기술，설계료변질심재입비행기쌍통도해우공제기。통과구조련속광활확장상태관측기，불가구분비행기적각류간우여우합，대기통일진행고계：이용비선성상태반궤공제률，병자괄응조절공제삼수대기진행보상，실현대비행기자태적해우공제。방진결과표명：해방법대대강저료대계통모형정도적요구여공제기설계실시대개，대변질심재입비행기비선성、우합성이급삼수섭동구유교강적로봉성。
Moving mass reentry vehicle (MmRV) has better aerodynamic configuration and maneuverability. However,the serious nonlinearity and coupling of moving mass control greatly increases the difficulty of control system design,which makes the cost of controller design and implement higher. In order to solve this problem,in the paper we design a double channels decoupling controller of MmRV based on the Active disturbance rejection control technology. By constructing a continuous smooth extended state observer,the controller estimates all kinds of vehicle disturbance and coupling indiscriminately; then compensates the estimative value by utilizing nonlinear state error feedback and adaptively adjusting the controller parameters to implement the decoupling control of vehicle attitude. Simulation results show that this method not only greatly reduces the requirement for prevision of system model and the cost of controller design and implementation,but also has strong robustness for nonlinearity,coupling and parameter perturbation of MmRV.