不确定高阶MIMO系统的指对数型终端滑模控制
An Exponent-Logarithmic Terminal Sliding Mode Control for Uncertain High-Order MIMO Systems
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摘要: 针对一类不确定高阶MIMO线性系统,提出了一种新型指对数型终端滑模控制方法。所设计的非线性指对数型终端滑模面,不仅能保证滑模动态的有限时间稳定,而且具有更快的收敛速度。同时,滑模控制器能够保证滑模面的有限时间可达性。最后,通过数值仿真验证了本文方法的有效性。Abstract: In this paper,an exponent-logarithmic terminal sliding mode control scheme is presented for a class of uncertain high-order MIMO systems.An exponent-logarithmic nonlinear sliding surface is proposed such that the states along the specified sliding surface attain the equilibrium point in finite time with a faster convergence rate.Moreover,a sliding mode controller is designed to guarantee the finite-time reachability of the specified sliding surface.Finally,the simulation results illustrate the effectiveness of the proposed exponent-logarithmic terminal sliding mode control strategy.
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