Adaptive tracking control of nonlinear systems with dynamic uncertainties using neural network

作者：Han, Yu-Qun^*

来源：International Journal of Systems Science, 2018, 49(7): 1391-1402.

DOI：10.1080/00207721.2018.1453955

• Adaptive tracking control
• nonlinear systems
• neural network
• dynamic uncertainties

In this paper, an adaptive neural tracking control approach is proposed for a class of nonlinear systems with dynamic uncertainties. The radial basis function neural networks (RBFNNs) are used to estimate the unknown nonlinear uncertainties, and then a novel adaptive neural scheme is developed, via backstepping technique. In the controller design, instead of using RBFNN to approximate each unknown function, we lump all unknown functions into a suitable unknown function that is approximated by only a RBFNN in each step of the backstepping. It is shown that the designed controller can guarantee that all signals in the closed-loop system are semi-globally bounded and the tracking error finally converges to a small domain around the origin. Two examples are given to demonstrate the effectiveness of the proposed control scheme.

• 出版日期2018
• 单位东南大学