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Subsynchronous damping controller design for high voltage DC links using linear matrix inequalities
Publikationstyp
Journal Article
Date Issued
2004-06
Sprache
English
Author(s)
Institut
Journal
Volume
12
Issue
6
Start Page
735
End Page
744
Citation
Control Engineering Practice 12 (6): 735-744 (2004)
Publisher DOI
Scopus ID
Publisher
Elsevier
A systematic tuning procedure of a subsynchronous damping controller for a high voltage DC link is presented. Linear matrix inequality (LMI) techniques are utilized combining pole region assignment with H-infinity constraints. The controller is tuned to damp subsynchronous torsional (7-40 Hz) and electromechanical oscillations (<3 Hz) as present with a thermal generator located near to an AC/DC rectifier and a weak electrical link to the rest of the AC system. A linearized state space model is used for the control design and the performance and robustness is demonstrated by simulation using the software package EMTDC representing detailed non-linear and time varying characteristics.
Subjects
Electric generator
H-infinity
High voltage DC
Linear matrix inequality
LQG
Power transmission
Subsynchronous oscillation
Torsional vibration
DDC Class
600: Technik
620: Ingenieurwissenschaften