Huadian Technology ›› 2008, Vol. 30 ›› Issue (8): 33-35.

• 基础研究 • Previous Articles     Next Articles

Power system low frequency oscillation electro-mechanical calculation based on strong correlation generator group

LI Song1,WANG Bin2   

  1. 1.Zhengzhou Power Supply Bureau,2.Zhengzhou University
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-08-25 Published:2008-08-25

Abstract:

Acalculationfortheelectromechanicalmodeofmultimachinepowersystemsispresented,whichavoids botheigenvaluelossanditerationtonorelationtorotoroscillationmodes.Theoscillatorymodeeigenvaluesastheiterativeinitialeigenvaluesarecalculatedwithequivalencesecondordermode;usingtheparticipationfactorsidentify thateachoscillationmodethestrongcorrelationgeneratorgroupinformation,takestheiterativeauxiliaryinformation of the iterativecalculation.Thentheassistantinformationisusedtocalculateallaccurateelectromechanicaleigenvaluesaccordingtomodelstatematrixoftheequivalencesecondorder.TheENGLAND10machinesystemisemployedtodemonstratetheeffectivenessofthemethod

Key words: low frequency oscillation, strong correlation generator group, electromechanical model