IEEERecommended Practice forExcitation System Models forPower System Stability StudiesSponsorEnergy Development and Power Generation Committeeof theIEEE Power Engineering SocietyApproved 29 December 2005American National Standards InstituteApproved 25 October 2005IEEE-SA Standards BoardAbstract:Excitation system models suitable for use in large-scale system stability studies arepresented. Important limiters and supplementary controls are also included. The model structurespresented are intended to facilitate the use of field test data as a means of obtaining modelparameters. The models are, however, reduced order models and do not represent all of the controlloops on any particular system. The models are valid for frequency deviations of ±5% from ratedfrequency and oscillation frequencies up to 3 Hz. These models would not normally be adequatefor use in studies of subsynchronous resonance or other shaft torsional interaction problems.Delayed protective and control features that may come into play in long term dynamic performancestudies are not represented. A sample set of data for each of the models, for at least one particularapplication, is provided.Keywords:excitation limiters, excitation systems, power system stability
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