摘要
针对一类受扰混沌系统的修正函数投影同步问题,提出了一个同步时间可控的自适应滑模变结构同步方法.该方法选取积分滑模面来消除抖振,抑制稳态误差,提高控制精度.同时,还巧妙地引入了同步速度控制参数,通过调节相关控制参数,可以控制同步速度,具有较高的使用价值.该方法还采用自适应控制来放宽对外界干扰的限制,无需事先已知外界干扰的的上界.理论分析及仿真结果验证了该方法的有效性.
This paper presents synchronization（MFPS） for a a time-controllable adaptive class of chaotic systems with modified function projective unknown disturbances. Thesynchronous speed control parameters were introduced skillfully in the sliding surface, the speed of synchronization is determined by the related parameters. In addition to, the approach can eliminate chattering, restrain the static error, improve the control precision by choosing integral sliding mode control. It is more robust to noise and external interference, and need not the upper bound of unknown disturbances in advance. It is more practical. Numerical simulations of a hyper-chaotic system verify the effectiveness of the proposed method.
出处
《华中师范大学学报（自然科学版）》
CAS
北大核心
2014年第6期834-839,共6页
Journal of Central China Normal University：Natural Sciences
基金
河南省2014年科技发展计划项目(142300410246)
郑州轻工业学院博士基金资助项目(2013BSJJ027)
关键词
混沌系统
投影同步
自适应控制
滑模变结构控制
时间可控
chaotic systems
projective synchronization
adaptive control
sliding mode control
time-controllable
