新的e修正鲁棒自适应控制方法在航空发动机上的应用

针对航空发动机模型的结构和参数的不确定性,提出一种基于非李亚普诺夫方程(NQLF)的e修正鲁棒模型参考自适应控制法。该方法无需知道发动机精确数学模型,抗干扰能力强,在输出误差信号的作用下具有比普通方法更快的收敛性,振荡性能够得到很好的控制。从仿真结果可见控制器能使系统比较好地跟踪参考模型的输出,对发动机模型参数和结构的变化有一定的适应能力,鲁棒性较好。

Novel e-modification Robust Adaptive Control for Aeroengine

Aiming at the nondeterminacy of the aeroengine model structure and parameters,this paper presents new robust adaptive laws for e-modification scheme using novel Non-Quadratic Lyapunov function(NQLF) for aeroengine.These new laws need no accurate mathematic model of aeroengine and offer better performance represented in a fast response of the output error signal while going to zero with a less number of oscillations.Simulation results show that this controller can make system track the model reference output quite well.It has high adaptivity to the change of aeroengine model parameters and structure.