New design methodology for adaptive switching gain based discrete-time sliding mode control

Journal Article (2019)
Research Group
Ship Design, Production and Operations
DOI related publication
https://doi.org/10.1080/00207179.2019.1632489
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Publication Year
2019
Language
English
Research Group
Ship Design, Production and Operations
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Abstract

The adaptive sliding mode control technique relaxes the assumption of known bound of the disturbance in discrete-time systems. However, the existing technique of gain adaptation in discrete-time sliding mode control has issues of gain overestimation and underestimation. Therefore, this paper proposes a technique to adapt the switching gain such that the adaptive gain can tackle the uncertainty without any knowledge of the bound of uncertainty while overcoming the over- and under-estimation problems of switching gain.