非线性纯反馈系统预定性能自适应控制器设计  

Design of Adaptive Controller with Prescribed Performance for a Class of Nonlinear Pure Feedback Systems

作　　者：陆树人 王磊[1,2] 蒋沅 LU Shu-ren;WANG Lei;JIANG Yuan(School of Information Engineering,Nanchang Aeronautical University,Nanchang 330063,China;Key Laboratory of Nondestructive Testing,Nanchang Aeronautical University,Nanchang 330063,China)

机构地区：[1]南昌航空大学信息工程学院,南昌330063 [2]南昌航空大学无损检测技术教育部重点实验室,南昌330063

出　　处：《火力与指挥控制》2020年第1期144-149,共6页Fire Control & Command Control

基　　金：国家自然科学基金（61663030,61663032）;江西省自然科学基金（20142BAB207021）;江西省教育委员会基金（GJJ150753）;南昌航空大学研究生创新专项基金（YC2017025）;南昌航空大学研究生三小资助项目（2018YBXG150）

摘　　要：为了使非线性纯反馈系统满足更高的性能要求,提出了一种新的预定性能自适应控制算法。为了解决状态中的非仿射结构引入了新的坐标变换,满足系统预定性能,设计了简单的Lyapunov函数,通过反步法,给出了一种新的自适应控制算法来解决参数未知问题。仿真表明在设计的控制器保证了系统预定性能的同时,也使得闭环系统所有信号有界。In order to satisfy the higher performance requirements for the nonlinear pure feedback system,a new predefined performance adaptive control algorithm is proposed.Firstly,a new coordinate transformation is introduced to solve the non-affine structure in the state;secondly,a simple Lyapunov function is designed to satisfy the predetermined performance of the system,and a new adaptive control algorithm is proposed to solve the problem of unknown parameters by backstepping method.Finally,simulation results show that the designed controller guarantees the system.At the same time,all signals of the closed-loop system are bounded.

关 键 词：纯反馈系统 预定性能 反步法 自适应控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]