摘要:
设计了一种具有自适应性和鲁棒性的反演控制律,实现了对含有系统不确定性的类Rossler系统的控制.首先通过小波神经网络辨识系统的非线性部分,将系统转化为含有结构不确定性和参数不确定性的参数化模型;然后,对于系统中的参数不确定性,设计自适应控制律,在线估计未知参数;对于系统中的结构不确定性,设计鲁棒控制律,使得系统具有鲁棒性.最后,通过仿真实现,验证了以上控制方法的有效性.
Abstract:
In this paper,we design an adaptive and robust backstepping control law to realize the control of the uncertainty of Rossler-like system.First,a wavelet network is used for identiring the nonlinear part of the system to change it into parametric model with parametric and structural uncertainties.Then,for the parameter uncertainties,an adaptive control law is designed to online estimate the unknown parameters;for the structural uncertainties,a robust control law is designed to make the system robust.Finally,the effectiveness of this method is illustrated by the simulation results.