Design for interaction: Factorized Nyquist based control design applied to a Gravitational Wave detector

Mathyn Van Dael, Gert Witvoet, Bas Swinkels, Manuel Pinto, Julia Casanueva, Diego Bersanetti, Maddalena Mantovani, Marco Vardaro, Tom Oomen

Research output: Contribution to journalConference articleScientificpeer-review

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Abstract

Gravitational Wave detectors require feedback control to control the length between the sensitive components of the detector. The degrees of freedom in the control system are inherently coupled and the level of interaction furthermore varies over time. A systematic control design approach for the feedback controllers is presented which provides a guide on how to cope with the varying levels of interaction. A new controller for one of the loops has been designed and experimental results measured on the Gravitational Wave detector Advanced Virgo show a significant reduction in the root mean square error of the loop with the new controller.

Original languageEnglish
Pages (from-to)107-112
JournalIFAC-PapersOnline
Volume55
Issue number37
DOIs
Publication statusPublished - 2022
Event2nd Modeling, Estimation and Control Conference, MECC 2022 - Jersey City, United States
Duration: 2 Oct 20225 Oct 2022

Keywords

  • Design
  • Factorized Nyquist
  • Gravitational Waves
  • Interaction
  • MIMO
  • Virgo

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