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Event-triggered variable structure control

International journal of control, 2020-02, Vol.93 (2), p.252-260 [Peer Reviewed Journal]

2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group 2019 ;ISSN: 0020-7179 ;EISSN: 1366-5820 ;DOI: 10.1080/00207179.2019.1575977

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  • Title:
    Event-triggered variable structure control
  • Author: Cucuzzella, Michele ; Incremona, Gian Paolo ; Ferrara, Antonella
  • Subjects: sliding mode control ; uncertain systems ; Variable structure control
  • Is Part Of: International journal of control, 2020-02, Vol.93 (2), p.252-260
  • Description: This paper presents a novel variable structure control (VSC) algorithm of event-triggered (ET) type, capable of dealing with a class of nonlinear uncertain systems. By virtue of its ET nature, the algorithm can be used as the kernel of a robust networked control system. The design objective is indeed to reduce the number of transmissions over the network. The proposed ET-VSC also guarantees appropriate robustness properties, even in the presence of delayed transmissions. It is theoretically analysed, proving that the sliding variable associated with the controlled system results in being ultimately confined into a boundary layer of prescribed amplitude. As a consequence, it is proved that the state of the considered uncertain nonlinear system is ultimately bounded as well. Moreover, a lower bound for the time elapsed between consecutive triggering events is provided, which excludes the notorious Zeno behaviour. Finally, the designed ET-VSC control scheme is satisfactorily assessed in simulation.
  • Publisher: Taylor & Francis
  • Language: English
  • Identifier: ISSN: 0020-7179
    EISSN: 1366-5820
    DOI: 10.1080/00207179.2019.1575977
  • Source: Taylor & Francis Open Access
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