模糊自适应的高超飞行器控制与干扰

摘要

针对具有超大飞行马赫数、超宽飞行包络、飞行环境复杂等特点的高超声速飞行器,提出了基于模糊自适应的高超飞行器高度控制方法,分别设计了高度和速度控制器.针对所设计的控制器,分析了气动干扰力矩、测量噪声、舵机干扰、气动参数不确定性和飞行器模型参数不确定性对飞行器高度控制和速度控制效果的影响,然后又分析了综合考虑以上干扰和不确定性对飞行器高度控制和速度控制效果的影响.仿真结果表明,对各种干扰和不确定性,所设计的控制器速度和高度控制有较好的跟踪性和鲁棒性,达到了满意的效果.%Hypersonic vehicles have ultra-wide flight envelopes, a high flight Mach number, and complex flight environments. Due to these issues, this paper presented a control method based on fuzzy adaptive and designed altitude and velocity controllers. For the controllers, the effects of aerodynamic disturbance torque, measurement noise, interference with the steering gear, pneumatic parameter uncertainty, and aircraft model parameter uncertainty were analyzed in light of the aircraft height and speed control. The comprehensive effect of the above issues was then analyzed. Simulation results show that the altitude and velocity controllers have great tracking ability and robustness to various disturbances and uncertainties, and the designed controllers displays satisfactory results.