A class of easy-to-implement sliding-mode controllers with constant switching frequency for power converters

Domingo Cortés, Jaime Álvarez, Eva M. Navarro-López, Christian Castro

    Research output: Chapter in Book/Conference proceedingConference contribution

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    Abstract

    Generally, sliding-mode controllers have to be modified to achieve a constant switching frequency or at least to have an upper limit for it. A family of sliding-mode controllers easy to implement is proposed in this paper. If a controller has the form specified in this paper then it can be implemented using a pulse-width modulator assuring a constant switching frequency, without requiring the control to be modified. The control structure proposed is shown to be feasible by presenting a controller for the boost converter as an example. Simulations and experimental results show that the controller structure proposed has the usual high performance and robustness of sliding-mode controllers. In addition, it has the very convenient features of constant switching frequency and easy implementation. ©2007 IEEE.
    Original languageEnglish
    Title of host publicationIEEE International Symposium on Industrial Electronics|IEEE Int Symp Ind Electron
    Pages731-735
    Number of pages4
    DOIs
    Publication statusPublished - 2007
    Event2007 IEEE International Symposium on Industrial Electronics, ISIE 2007 - Caixanova - Vigo
    Duration: 1 Jul 2007 → …

    Conference

    Conference2007 IEEE International Symposium on Industrial Electronics, ISIE 2007
    CityCaixanova - Vigo
    Period1/07/07 → …

    Keywords

    • Power electronics
    • Discontinuous systems
    • Sliding-mode-based control
    • Experimental results

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