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

Van Dael, Mathyn; Witvoet, Gert; Swinkels, Bas; Pinto, Manuel; Casanueva, Julia; Bersanetti, Diego; Mantovani, Maddalena; Vardaro, Marco; Oomen, T.A.E.

doi:10.1016/j.ifacol.2022.11.169

Design for interaction

Title

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

Author

Van Dael, Mathyn (Eindhoven University of Technology; Nikhef)
Witvoet, Gert (Eindhoven University of Technology; TNO)
Swinkels, Bas (Nikhef)
Pinto, Manuel (European Gravitational Observatory (EGO))
Casanueva, Julia (European Gravitational Observatory (EGO))
Bersanetti, Diego (INFN, Genova)
Mantovani, Maddalena (INFN, Genova)
Vardaro, Marco (Nikhef)
Oomen, T.A.E. (TU Delft Team Jan-Willem van Wingerden; Eindhoven University of Technology)

Date

2022

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.

Subject

Design
Factorized Nyquist
Gravitational Waves
Interaction
MIMO
Virgo

To reference this document use:

http://resolver.tudelft.nl/uuid:aee9ed87-830f-4786-8be3-085fec7f4e26

DOI

https://doi.org/10.1016/j.ifacol.2022.11.169

ISSN

1474-6670

Source

IFAC-PapersOnLine, 55 (37), 107-112

Event

2nd Modeling, Estimation and Control Conference, MECC 2022, 2022-10-02 → 2022-10-05, Jersey City, United States