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Grid-Free Model Order Reduction for Linear Parameter-Varying Systems via Full Block S-Procedure
Publikationstyp
Conference Paper
Date Issued
2020-05
Sprache
English
Author(s)
Institut
TORE-URI
Start Page
1579
End Page
1584
Article Number
9143662
Citation
European Control Conference (ECC 2020): 1579-1584 (2020)
Contribution to Conference
Publisher DOI
Scopus ID
This paper shows how the computational effort required for the balanced truncation of linear parameter-varying (LPV) systems with more than one scheduling parameter can be significantly reduced by using a grid-free approach. This approach is applicable to LPV systems that can be expressed as linear fractional representations. The full block S-procedure (FBSP) is used to calculate generalized Gramians, and the need for gridding is eliminated by imposing a DG-scale structure on the multipliers. A numerical study on a chained multiple mass-spring-damper system with parameter-dependent spring constants illustrates considerable improvement in computation time when there is more than one scheduling parameter. Moreover, the results suggest that the conservatism due to using DG-scales does not affect the quality of the reduced models.