广义系统的快速终端滑模控制

Fast Terminal Sliding Mode Control for Singular Systems

  • 摘要: 研究了一类广义系统的快速终端滑模控制问题。通过非奇异线性变换把广义系统变换成受限等价形式,利用Lyapunov函数的方法,提出了一种新的指数型快速终端滑模控制策略,给出了特殊的指数型终端滑模超曲面,设计了相应的终端滑模控制器,使得闭环系统渐进稳定,实现了滑模运动,保证了系统状态变量以较快的收敛速度在有限时间内到达平衡点。给出了数值算例,说明了设计的可行性和有效性。

     

    Abstract: In this paper, the fast terminal sliding mode control for a class of singular systems is studied. The singular systems are transformed into restricted equivalent forms by a nonsingular linear transformation. By the method of Lyapunov function, a novel exponential fast terminal sliding mode control strategy is proposed. A special exponential terminal sliding mode hypersurface is given and a controller is designed correspondingly, such that the asymptotic stability of the closed-loop system is guaranteed, the motion of sliding mode is realized, and the system state variables can converge to the equilibrium point with a fast convergence rat in finite time. Finally, a numerical example is presented to illustrate the feasibility and effectiveness of the design.

     

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