Technical communique: Asynchronously switched control of switched linear systems with average dwell time

  • Authors:
  • Lixian Zhang;Huijun Gao

  • Affiliations:
  • Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin, 150001, China;Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin, 150001, China

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2010

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Abstract

This paper concerns the asynchronously switched control problem for a class of switched linear systems with average dwell time (ADT) in both continuous-time and discrete-time contexts. The so-called asynchronous switching means that the switchings between the candidate controllers and system modes are asynchronous. By further allowing the Lyapunov-like function to increase during the running time of active subsystems, the extended stability results for switched systems with ADT in nonlinear setting are first derived. Then, the asynchronously switched stabilizing control problem for linear cases is solved. Given the increase scale and the decrease scale of the Lyapunov-like function and the maximal delay of asynchronous switching, the minimal ADT for admissible switching signals and the corresponding controller gains are obtained. A numerical example is given to show the validity and potential of the developed results.