Online parameter estimation of round rotor synchronous generators including magnetic saturation

Elias Kyriakides, Gerald Thomas Heydt, Vijay Vittal

Research output: Contribution to journalArticlepeer-review

68 Scopus citations


Round rotor synchronous generator parameters are identified from online data measured at the terminals of the machine. Parameter estimation results from two generators are presented. Data sets at different operating points are considered to examine the consistency of the proposed method at varying operating conditions. A magnetic saturation model is implemented in the estimation procedure to account for the effect of saturation on generator inductances. Inclusion of saturation in the machine model is found to improve the estimation results. Noise filtering and bad data detection and rejection techniques are employed to increase the reliability of the estimates. An observer is used to estimate the damper winding currents that are otherwise unknown. The estimated parameters are compared to available manufacturer data and the accuracy of the method is assessed.

Original languageEnglish (US)
Pages (from-to)529-537
Number of pages9
JournalIEEE Transactions on Energy Conversion
Issue number3
StatePublished - Sep 2005


  • Damper currents
  • Modeling
  • Online measurements
  • Parameter estimation
  • Saturation
  • State estimation
  • Synchronous generator

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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