Application of Robust Antiwindup Techniques to Dynamically Substructured Systems

G Li, G Herrmann, DP Stoten, J-Y Tu, MC Turner

Research output: Contribution to journalArticle (Academic Journal)peer-review

4 Citations (Scopus)

Abstract

Dynamically substructured systems (DSS) play an important role in modern testing methods. DSS enables full-size critical components of a complete system to be tested physically in real-time, while the remaining parts of the system run in parallel as a real-time simulation. The performance of DSS testing is influenced by the synchronization of the physical and numerical substructures, which necessitates the design of a DSS controller. Since the testing signal is known and can be assumed to be a perfectly measured disturbance, the DSS control can be viewed as a regulation control problem with measured disturbance attenuation. A potential problem with DSS control arises from actuator saturation, which can be encountered in DSS transfer systems and can significantly influence the testing accuracy. This paper demonstrates the application of a novel robust disturbance rejection antiwindup (AW) technique, to cope with the actuator saturation problem in DSS. Implementation results from a hydraulically-actuated DSS test rig confirm the advantage of using this novel approach over some other existing AW approaches. Furthermore, some specific practical issues are discussed for the AW compensator design, such as the tuning of parameters.

Translated title of the contributionApplication of Robust Antiwindup Techniques to Dynamically Substructured Systems
Original languageEnglish
Pages (from-to)263-272
Number of pages10
JournalIEEE/ASME Transactions on Mechatronics
Volume18
Issue number1
Early online date12 Sep 2012
DOIs
Publication statusPublished - Feb 2013

Keywords

  • Antiwindup compensation
  • dynamic testing
  • dynamically substructured systems
  • servohydraulically actuated systems
  • ADAPTIVE-CONTROL
  • LINEAR-SYSTEMS
  • DESIGN
  • COMPENSATION
  • SATURATION
  • STABILITY
  • FRAMEWORK

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