Fluid flow control applications of ℍ2 optimal actuator and sensor placement

Kevin K. Chen, Clarence W. Rowley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

In the control of distributed parameter systems, the problem of effective actuator and sensor placement is not well understood, and the use of suboptimal placement methodology is common. We discuss a technique we recently proposed that iterates toward the optimal actuator and sensor placement for ℍ2 synthesis, minimizing the closed-loop ℍ2 norm from exogenous inputs to exogenous outputs. The iteration is based on an efficient computation of the ℍ2 norm's gradient with respect to actuator and sensor placements.We demonstrate the technique on the Orr-Sommerfeld/Squire model of fluid flow, and review previous results from the linearized Ginzburg-Landau model. Finally, we use these results to analyze the validity of previous placement approaches.

Original languageEnglish (US)
Title of host publication2014 American Control Conference, ACC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4044-4049
Number of pages6
ISBN (Print)9781479932726
DOIs
StatePublished - 2014
Event2014 American Control Conference, ACC 2014 - Portland, OR, United States
Duration: Jun 4 2014Jun 6 2014

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2014 American Control Conference, ACC 2014
CountryUnited States
CityPortland, OR
Period6/4/146/6/14

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Aerospace
  • Distributed parameter systems
  • Optimal control

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