模型预测控制算法在飞机自动着陆控制系统中的应用

Application of Model Predictive Control (MPC) to Aircraft ALCS to Make its Landing Precision Higher

针对大展弦比这种对侧向着陆精度要求很高的飞机 ,设计了一种经典 PID控制器加预测控制器的分层控制系统。仿真实验结果表明 ,该控制系统能够有效地提高着陆精度并严格控制接地时的滚转角。

The present aircraft ALCS (automatic landing control system), usually employing PID control, appears unable to meet the high landing precision required by aircraft with long flexible wings. We propose to combine PID control with MPC to improve landing precision. The relevant information about MPC is reviewed. The model used in MPC and the scroll optimization of MPC is described. The simulation results of landing precision of ALCS using PID control alone are compared with those using PID control combined with MPC. The comparison shows that significantly higher landing precision is obtained using PID control combined with MPC. Even under lateral wind of 10 m/s during landing, the aircraft bank angle can be controlled not to exceed 2 degrees.