Robust control of a VSC HVDC terminal attached to a weak AC system

Publikationstyp
Conference Paper
Date Issued
2003
Sprache
English
Author(s)
Farag, Adel  
Durrant, Martyn  
Werner, Herbert  
Abbott, Keith  
Institut
Regelungstechnik E-14  
TORE-URI
http://hdl.handle.net/11420/14922
Volume
1
Start Page
173
End Page
177
Citation
Proceedings of the 2003 IEEE Conference on Control Applications 1: 173-177 (2003)
Contribution to Conference
IEEE International Conference on Control Applications, CCA 2003  
Publisher DOI
10.1109/CCA.2003.1223287
Scopus ID
2-s2.0-0344553246
Publisher
IEEE
In this paper a robust controller for a Voltage Source Converter High Voltage Direct Current (VSC HVDC) transmission system is designed. The dynamic behaviour of the power controlling terminal of VSC HVDC transmission varies with the impedance of the attached AC system and the power flow across the DC link. A single controller is sought to provide the performance across a range of operating conditions. First, a linear fractional transformation (LFT) uncertainty model is constructed from a set of linearised models using a technique based on the singular value decomposition. The controller is then designed using a new iterative algorithm which has low conservatism. The controller is obtained by solving a linear matrix inequality (LMI) problem for which efficient solvers are available. The method produces a successful design: numerical simulation confirms the achievement of realistic control objectives for the nominal model, and an acceptable robust performance for all operating conditions.
DDC Class
600: Technik
620: Ingenieurwissenschaften