Damping of power swings by control of braking resistors

J. Machowski, A. Smolarczyk, J. W. Bialek

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


In this paper an analysis of the stability enhancement and improved damping of power swings in a multi-machine power system by means of thyristor-controlled braking resistor installed in the network has been presented. The control law has been derived using direct Lyapunov method and non-linear multi-machine system model. It is optimal in the sense that it causes the quickest dissipation of the power system energy released by a disturbance. Simple implementation of this control using only locally available signal has been also demonstrated. A computer simulation of a multi-machine power system model has verified the effectiveness of the proposed algorithm.

Original languageEnglish
Pages (from-to)539-548
Number of pages10
JournalInternational Journal of Electrical Power and Energy Systems
Issue number7
Publication statusPublished - Oct 2001
Externally publishedYes


  • Flexible AC transmission systems
  • Power system stability


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