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An Improved Antiwindup Design Using an Anticipatory Loop and an Immediate Loop

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  • Qing Wang
  • Maopeng Ran
  • Chaoyang Dong
  • Maolin Ni

Abstract

We present an improved antiwindup design for linear invariant continuous-time systems with actuator saturation nonlinearities. In the improved approach, two antiwindup compensators are simultaneously designed: one activated immediately at the occurrence of actuator saturation and the other activated in anticipatory of actuator saturation. Both the static and dynamic antiwindup compensators are considered. Sufficient conditions for global stability and minimizing the induced gain are established, in terms of linear matrix inequalities (LMIs). We also show that the feasibility of the improved antiwindup is similar to the traditional antiwindup. Benefits of the proposed approach over the traditional antiwindup and a recent innovative antiwindup are illustrated with well-known examples.

Suggested Citation

  • Qing Wang & Maopeng Ran & Chaoyang Dong & Maolin Ni, 2014. "An Improved Antiwindup Design Using an Anticipatory Loop and an Immediate Loop," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-9, May.
    • Handle: RePEc:hin:jnlmpe:316043
    DOI: 10.1155/2014/316043
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