Iterative interaction decoupling for multivariate time-varying systems applied to a Gravitational Wave Detector
conference paper
Some of the feedback loops in the Advanced Virgo+ Gravitational Wave detector exhibit strong coupling and this coupling also varies over time. This paper presents a method to decouple the loops using a decoupling matrix, removing restrictions on the attainable performance of the feedback loops. The presented method performs batch-wise identification of the coupling matrix using only a single sinusoid per loop as perturbation by exploiting the specific structure of the plant to interpolate between frequency bins. The presented method is implemented on AdV+ and is shown to lead to significant decoupling of the loops and to keep the interaction terms low over time.
Topics
TNO Identifier
998015
ISBN
9783907144107
Publisher
Institute of Electrical and Electronics Engineers IEEE
Source title
European Control Conference, ECC 2024, 25-28 June 2024, Stockholm, Sweden
Collation
6 p.
Pages
2454-2459
Files
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