Second-order sliding mode controller design subject to mismatched term
Second-order sliding mode controller design subject to mismatched term
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DOI：
10.1016/j.automatica.2016.07.038
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发表时间：
2017-03
期刊：
影响因子：
--
通讯作者：
Shihong Ding;Shihua Li
中科院分区：
文献类型：
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作者：
Shihong Ding;Shihua Li
该公报提出了一种新的二阶滑模（SOSM）控制方法来处理具有失配项的滑模动态，从而减少控制通道中的项。同时，所提出的控制方法可以用来设计SOSM控制器的干扰有界的正函数，而不是传统的常数上界。利用有限时间李雅普诺夫理论证明了滑动变量的有限时间稳定性。通过控制Buck变换器验证了该方法的有效性。
This communique proposes a novel second-order sliding mode (SOSM) control method to handle sliding mode dynamics with mismatched term, so as to reduce the terms in the control channel. Meanwhile, it is shown that the proposed control approach can be used to design SOSM controllers under disturbances bounded by positive functions rather than conventional constant upper bounds. The finite-time stability of the sliding variables has been shown by using finite-time Lyapunov theory. The validity of the proposed approach is verified by controlling a Buck converter.