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arXiv · 1309.3317

Pole-placement in higher-order sliding-mode control

Debbie Hernández·Fernando Castaños·Leonid Fridman
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Abstract

We show that the well-known formula by Ackermann and Utkin can be generalized to the case of higher-order sliding modes. By interpreting the eigenvalue assignment of the sliding dynamics as a zero-placement problem, the generalization becomes straightforward and the proof is greatly simplified. The generalized formula retains the simplicity of the original one while allowing to construct the sliding variable of a single-input linear time-invariant system in such a way that it has desired relative degree and desired sliding-mode dynamics. The formula can be used as part of a higher-order sliding-mode control design methodology, achieving high accuracy and robustness at the same time.

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Debbie Hernández, Fernando Castaños, Leonid Fridman. 2013-09-12. Pole-placement in higher-order sliding-mode control. https://arxiv.org/abs/1309.3317

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