Decentralized direct adaptive output feedback fuzzy H (a) tracking design of large-scale nonaffine nonlinear systems

作者：Huang Yi Shao^*; Zhou De Qun; Chen Xiaoxin

来源：Nonlinear Dynamics, 2009, 58(1-2): 153-167.

DOI：10.1007/s11071-009-9468-1

• Large-scale nonlinear systems
• Fuzzy control
• Output feedback
• Strictly positive realness (SPR)
• Decentralized control
• H(infinity) tracking performance

A novel H (a) tracking-based decentralized direct adaptive output feedback fuzzy controller is developed for a class of interconnected nonaffine uncertain nonlinear systems in this paper. By virtue of the proper filtering of the observation error dynamics to assure its strictly positive realness, the observer-based decentralized direct adaptive fuzzy control (DAFC) scheme is presented for a class of large-scale nonaffine nonlinear systems by the combination of H (a) tracking technique, implicit function theorem, a state observer and a fuzzy inference system. The output feedback and adaptation mechanisms for each subsystem depend upon local measurements not only to achieve asymptotical tracking of a reference trajectory but to guarantee arbitrary small attenuation level of the mismatched errors and external disturbances on the tracking error. Simulation results confirm the effectiveness of the proposed decentralized output feedback scheme.

• 出版日期2009-10
• 单位南京航空航天大学; 江西财经大学