Excitation controller design using H -control based on multirate output applied to a hydro-unit-system

A. K. Boglou, D. V. Bandekas, D. I. Pappas

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


In this paper an H -control technique is presented and applied to the design of optimal multirate-output controllers. The technique is based on multirate-output controllers (MROCs) having a multirate sampling mechanism with different sampling period in each measured output of the system. It relies mainly on the reduction, under appropriate conditions, of the original H -disturbance attenuation problem to an associated discrete H -control problem for which a fictitious static state feedback controller is to be designed, even though some state variables are not available (measurable) for feedback purposes. The proposed H-control technique is applied to the discrete linear open-loop system model which represents a linear speed governor (mechanical-hydraulic type), a hydroturbine ideal version for rated speed, head etc. and a rotational dynamic part with inertia H.

Original languageEnglish
Pages (from-to)168-178
Number of pages11
JournalJournal of Electrical Systems
Issue number2
StatePublished - Jun 2014


  • Digital multirate control
  • Disturbance
  • Power system


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