Damping of Generator Oscillations using Phasor Measurement Units and Breaking Resistors

L. Lindgren. B. Eliasson, and C. Andersson (Sweden)


Dynamic stability, Mode analysis, and On-off control


In this paper a disturbance in the western part of the Swedish power system, 1997, January 1, is studied. Two large nuclear units tripped due to a short circuit in a substation. The purpose of this paper is to study the damping features of power oscillations by using synchronised measured frequency deviations between generators and the mean system frequency. The measurements are based on GPS (Global Position System) synchronised data, performed and communicated by PMUs (Phasor Measurement Units) located at strategic nodes in the power system.

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