Comparison of LMI based H₂ control designs for VSC-HVDC transmission

Journal
IFAC Proceedings Volumes  
Volume
38
Issue
1
Start Page
233
End Page
238
Citation
IFAC Proceedings Volumes 38 (1): 233-238 (2005)
Contribution to Conference
16th IFAC World Congress, 2005  
Publisher DOI
10.3182/20050703-6-cz-1902.01767
Scopus ID
2-s2.0-79960709030
Publisher
Elsevier
The design of a robust controller for a VSC HVDC terminal using LMI based robust H2 and multi-objective H₂- H∞ design methods is described. The operating range of the terminal is first characterised as an uncertainty region around a linear nominal model using the operating points of a non-linear model. The performance and robustness of controllers designed using the two methods and the effects of approximations in the uncertainty region definition are then described and compared. The best trade-off between robustness and performance on the non-linear model is demonstrated to be achieved using the robust H₂ method.
Subjects
Multi-variable feedback control
Power transmission
Robust performance
Robust stability
Uncertain linear systems
DDC Class
600: Technik
620: Ingenieurwissenschaften