AGREGAÇÃO DINÂMICA DE MODELOS DE ESTABILIZADORES APLICADOS EM REGULADORES DE TENSÃO E CÁLCULO DE EQUIVALENTES DINÂMICOS / DYNAMIC AGGREGATION OF POWER SYSTEM STABILIZER MODELS APPLIED IN VOLTAGE REGULATORS AND CALCULATION OF DYNAMIC EQUIVALENTS

AUTOR(ES)
DATA DE PUBLICAÇÃO

1999

RESUMO

The calculation of coherency-based dynamic equivalents has three main steps: the identification of coherent generators, the network reduction and the dynamic aggregation of the coherent generating unit models. This dissertation deals with the problem of dynamic aggregation of power system stabilizer models to calculate coherency-based dynamic equivalents for power system transient stability studies. The determination of a criteria to choose the best equivalent model for a given composition of power system stabilizer models in a group of coherent generators is the main objective. The parameters of the power system stabilizer equivalent models for each group of coherent generating units are adjusted to match the frequency response of the individual models. This multivariable optimization problem is solved using the Levenberg-Marquardt method. The dynamic performance of the equivalents is evaluated in a test system.

ASSUNTO(S)

estabilidade transitoria dynamic aggregation dynamic equivalents agregacao dinamica transient stability equivalentes dinamicos

ACESSO AO ARTIGO

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