机载液压舵机伺服系统优化控制研究与仿真

研究机载液压舵机伺服系统液位精确控制问题。飞行器在空中起降高度发生大幅变化时导致气压不稳,液压受到气压不稳的影响发生不规律性和非线性波动。传统液压舵机伺服控制方法中,以PID算法为基础,控制参数灵活,不能很好地处理液压异常变化带来的液位零漂、滞后造成的影响,造成液位控制精度不高的问题。为此提出了参数动态调整的机载液压舵机伺服系统液位优化控制算法,通过建立参数动态模型,运用动态模型使得液压参数可以根据实际情况变化,保证了干扰条件下的控制精度。仿真结果表明,优化控制方法能够有效解决气压干扰下液位的控制精度,为系统优化提供思路。

Airborne Hydraulic Steering Gear Servo System Optimization Control Research and Simulation

Study airborne hydraulic steering gear servo system optimization control to ensure that the system control precision.In takeoff and landing of aircraft,pressure instability happened,which seriously impacts the stability of the hydraulic testing,due to the changes in the hydraulic regularity and nonlinear.Traditional hydraulic hydraulic steering gear servo control method,based on PID algorithm and flexible control parameters,can not deal well with the effects of zero drifting and lagging of liquid level,causing low control accuracy.In order to solve the problem,the paper put forward an airborne hydraulic steering gear servo system optimal control algorithm based on fuzzy parameters,By establishing the dynamic parameters model,the hydraulic parameters can change according to the actual situation,which can ensure the control accuracy under the interference conditions.Simulation results show that the optimization control method can effectively improvel control precision of the system.