Skip to main content
Article
Damping of low-frequency oscillations and improving power system stability via auto-tuned PI stabilizer using Takagi-Sugeno fuzzy logic
International Journal of Electrical Power and Energy Systems. (2012)
  • Prof Dr. Mahmoud Moghavvemi, University of Malaya
Abstract

Abstract This paper proposes a Takagi-Sugeno (TS) fuzzy gain-scheduling PI stabilizer to damp the power system low-frequency oscillations and enhance power system stability. The work describes the construction of appropriate fuzzy membership functions and rules for a Power System Stabilizer (PSS) so that its proportional and integral gains can be automatically tuned in real-time to react to changes in the system operating conditions. To find the optimal number and locations of required stabilizers, this paper uses the participation factor method. Simulation results on a practical power system demonstrate that the proposed stabilizer is effective in damping low-frequency oscillations as well as improving system dynamic stability and voltage profile. In addition, the proposed approach provides superior performance when compared to a conventional PI PSS.

Keywords
  • Low-frequency oscillations; Power system modeling; Power system stability; PSS; Takagi-sugeno fuzzy system
Publication Date
2012
Citation Information
L. H. Hassan, M. Moghavvemi, H. A. F. Almurib, K. M. Muttaqi, and H. Du, "Damping of low-frequency oscillations and improving power system stability via auto-tuned PI stabilizer using Takagi-Sugeno fuzzy logic," International Journal of Electrical and Energy Systems, vol. 38, pp. 72-83, 2012.