A Switched Hold-Zero Compensation Strategy for DCESs Subject to Control Input Missings

  • Arben Çela
  • Mongi Ben Gaid
  • Xu-Guang Li
  • Silviu-Iulian Niculescu
Part of the Communications and Control Engineering book series (CCE)

Abstract

Factors like data dropout, failures of calculation nodes and tasks preemption may cause execution failures of standard sample-and-control at some sampling instants. Such a phenomenon of controller failure is called the control input missing. It has recently worthed a special attention since we have to design a compensation controller in order to generate control inputs when a control input missing occurs. In this chapter, we proposed a new switched hold-zero (HZ) control strategy. When a control input missing occurs, the switched HZ control strategy has two candidate control laws: the hold control and the zero control. In the sequel, we study how to make the optimal switching between the two control laws, by setting an appropriate switching parameter, such that the switched HZ control admits the maximum admissible control input missing rate (ACIMR). With the optimal switching parameter, the switched HZ control strategy is shown to be superior than both the zero-control and the hold-control ones. In addition, we propose an application of the ACIMR: designing an appropriate hyper-sampling period based on the obtained ACIMR. According to the obtained hyper-sampling period, the system may positively discard some sample-and-control executions during the run-time. In this way, we may positively reduce the system resource utilization.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Arben Çela
    • 1
  • Mongi Ben Gaid
    • 2
  • Xu-Guang Li
    • 3
  • Silviu-Iulian Niculescu
    • 4
  1. 1.Department of Computer Science and TelecommunicationUniversité Paris-Est, ESIEE ParisNoisy-le-GrandFrance
  2. 2.Electronic and Real-Time Systems DepartmentIFP New EnergyRueil-MalmaisonFrance
  3. 3.School of Information Science and EngineeringNortheastern UniversityShenyangPeople’s Republic of China
  4. 4.L2S—Laboratoire des signaux et systèmesSupélecGif-sur-YvetteFrance

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