Z-bus based frequency scanning program for sub-synchronous resonance screening

Surendra R. Puchalapalli, Richard G. Farmer, George G. Karady, John Hernandez, Yeolkyu Suh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


The paper presents the development of a frequency scanning program used for subsynchronous resonance (SSR) screening. The developed program is capable of screening power systems with hundreds of buses. The heart of the program is Z-Bus (Bus Impedance Matrix) of the power system as a function of frequency. The paper describes a fast and efficient method for forming Z-bus. The paper includes validation of the developed program by comparing case results with the IEEE Second Benchmark Model. Frequency scanning results from the application of the program to an existing power system are presented.

Original languageEnglish (US)
Title of host publication2007 IEEE Lausanne POWERTECH, Proceedings
Number of pages6
StatePublished - Dec 1 2007
Event2007 IEEE Lausanne POWERTECH - Lausanne, Switzerland
Duration: Jul 1 2007Jul 5 2007

Publication series

Name2007 IEEE Lausanne POWERTECH, Proceedings


Other2007 IEEE Lausanne POWERTECH


  • Capacitor compensated transmission lines
  • Frequency scanning
  • SSR
  • Sub-synchronous resonance
  • Z-Bus building algorithm

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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