摘要
针对一类带有执行器故障、非线性不确定性以及外界干扰的混沌系统,设计一个鲁棒自适应容错控制器,来实现主从混沌系统之间的同步容错控制。不需要知晓准确的故障信息以及外界干扰的上界,根据自适应律在线估计未知量。结合自适应控制技术,设计鲁棒自适应容错控制器,使得无论执行器是否有故障发生,主从两个混沌系统都能够实现同步。以经典的蔡氏混沌电路系统为例进行数值仿真,仿真结果验证了所设计控制器的有效性和可行性。
A robust adaptive fault-tolerant control scheme is designed to achieve the master-slave fault-tolerant synchronization for a class of chaotic systems with actuator failures,nonlinear uncertainties and external disturbances.Both accurate information of faults and upper bound of external disturbances are unknown,and the adaptive laws are proposed to estimate the unknown parameters online.Combined with adaptive control technology,a robust adaptive fault-tolerant controller was constructed to realize synchronization between master and slave systems whether the faults happen or not.A numerical simulation example of the classical chua′s circuit system was given,and the effectiveness and applicability of the proposed control scheme was proved by the simulation results.
作者
邓立为
宋歌
高俊山
DENG Li-wei SONG Ge GAO Jun-shan(School of Automation, Harbin University of Science and Technology, Harbin 150080, China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2017年第8期114-122,共9页
Electric Machines and Control
基金
黑龙江省自然科学基金(F201307)
关键词
自适应控制
容错控制
混沌同步
执行器故障
外界干扰
adaptive control
fault-tolerant control
chaos synchronization
actuator failures
external disturbances
