Reajuste de la Ganancia del AVR para mejorar la Estabilidad de un Sistema de Potencia Industrial (Stability Enhancement of an Industrial Power System by AVR Gain Readjustment)

Jorge Calderon (

1Instituto Nacional de Electricidad y Energías Limpias

This paper appears in: Revista IEEE América Latina

Publication Date: April 2017
Volume: 15,   Issue: 4 
ISSN: 1548-0992

Excitation systems of synchronous generators contribute to effective voltage control and power system stability. Although the excitation system is tuned to enable the power system performs properly over a wide range of operating conditions, it may be necessary to retune it with the aim of improving the system stability during operating conditions not considered before. This paper shows how an unstable operating condition, of an oil refinery electric power system, after the occurrence of two simultaneous events may be avoided by simply adjusting the automatic voltage regulator gain in one of its synchronous generators.

Index Terms:
Automatic voltage regulator, power system stability, synchronous generator, poorly damped oscillations.   

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