Almost disturbance decoupling for a class of nonlinear systems via sampled-data output feedback control

作者：Chu, Hongyan^*; Qian, Chunjiang; Yang, Jiquan; Xu, Shengyuan; Liu, Yijian

来源：International Journal of Robust and Nonlinear Control, 2016, 26(10): 2201-2215.

DOI：10.1002/rnc.3403

• almost disturbance decoupling
• feedback domination approach
• output feedback
• sampled-data controller

This paper addresses the problem of almost disturbance decoupling (ADD) using sampled-data output feedback control for a class of continuous-time nonlinear systems. Under a lower-triangular linear growth condition, a sampled-data output feedback controller is constructed based on the output feedback domination approach, and a Gronwall-Bellman-like inequality is established in the presence of disturbances. Even though a sampled-data controller is employed for easy computer implementation, the proposed controller is still able to achieve ADD under the commonly used continuous-time requirement, that is, the disturbances' effect on the output is attenuated to an arbitrary degree of accuracy in the L-2 gain sense.

• 出版日期2016-7-10
• 单位南京师范大学; 南京理工大学