A new optimal controller designed for HVDC system

Albostan A., Gokbulut M.

INTERNATIONAL JOURNAL OF ELECTRONICS, vol.86, no.3, pp.329-349, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 86 Issue: 3
  • Publication Date: 1999
  • Doi Number: 10.1080/002072199133481
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.329-349
  • Istanbul Technical University Affiliated: No


An adaptive optimal control strategy fbr two terminal HVDC systems embedded in an AC network is presented. The control is based upon real-time measurements performed on the AC/DC system. The system modelling is general and applicable to large-scale power systems with an embedded HVDC link. The control algorithm incorporates the nonlinear power system dynamic equations. A novel Feature of this development is the use of real-time system measurements as inputs to the optimal controller. The closed-loop optimal control law consists of both model- and measurement-based terms. The effectiveness of the optimal control algorithm in damping the electromechanical oscillations is illustrated with the use of a nine-bus AC/DC system.