摘要
针对一类不确定离散非线性系统,提出了一种显式高阶滑模预测控制算法:利用幂次函数趋近律和高阶滑模控制方法,结合预测控制策略,给出了一种高阶滑模预测模型,得到了显式的高阶滑模预测模型控制器,使其兼具滑模控制方法与预测控制方法的优点,有效削弱了滑模控制系统的抖振现象.最后用数值仿真算例证明了文章设计方法的有效性,与传统滑模预测控制相比,收敛速度更快,稳定性更好.
An explicit higher order sliding mode predictive control algorithm is pre- sented for a class of nonlinear uncertain systems: By applying power exponential reaching law and higher order sliding mode method, employing predictive control strategy, construct a higher order sliding mode prediction model, and get the explicit higher order sliding mode predictive controller, the closed-loop system is proved hav- ing advantages of sliding mode control and predictive control, and effectively weaken- ing the chattering phenomenon of sliding mode control system. Finally, the simulationresults for a numerical example prove compared with the traditional sliding gence speed and better stability. the effectiveness of the designed method, and mode predictive control, it has faster conver-
作者
苏佰丽
杨雪
SU Baili YANG Xue(College of Engineering, Qufu Normal University, Rizhao 27682)
出处
《系统科学与数学》
CSCD
北大核心
2016年第10期1574-1584,共11页
Journal of Systems Science and Mathematical Sciences
基金
国家自然科学基金(61374004
61273182
61104007
61473170)
横向课题(HX201246)资助课题
关键词
预测控制
高阶滑模控制
离散非线性系统
幂次函数趋近律
Predictive control; higher order sliding mode control; discrete-time non-linear systems; power exponential reaching law