Optimal restricted structure control with prespecified gain or phase margins

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3 Citations (Scopus)

Abstract

Restricted structure controllers have previously been defined, where the controller structure and order are predefined. These enable a cost-function to be minimised to obtain the best controller tuning parameters; however, the gain and phase margins were incidental. A constrained optimisation method is proposed that enables specified gain or phase-margins to be achieved. In fact, these robustness margins are generalised and the optimisation method enables them to be achieved exactly, but at the price of a cost increase.
LanguageEnglish
JournalIEE Proceedings Control Theory and Applications
Volume151
Issue number3
DOIs
Publication statusPublished - 2004

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margins
controllers
Controllers
costs
optimization
Constrained optimization
Cost functions
Tuning
tuning
Costs

Keywords

  • control systems
  • phase margins
  • structure control

Cite this

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abstract = "Restricted structure controllers have previously been defined, where the controller structure and order are predefined. These enable a cost-function to be minimised to obtain the best controller tuning parameters; however, the gain and phase margins were incidental. A constrained optimisation method is proposed that enables specified gain or phase-margins to be achieved. In fact, these robustness margins are generalised and the optimisation method enables them to be achieved exactly, but at the price of a cost increase.",
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