Parametrización automática de diferencia angular en recierres automáticos de líneas de transmisión

Abstract

The opening of a transmission line can happen due to maintenance operations or failures that exist in the power system. Manual or automatic closing of the circuit breaker causes disturbances that travel throughout the network. The oscillations produced affect the shaft of the turbines of the generating units. Torsional stresses on the shafts have a cumulative fatigue effect that reduces the life of the machines. Therefore, it is necessary to minimize fatigue by reducing the power variation of the generator that is produced by the closing of the line, this is achieved by the angle of synchronization of the switches. A lower value of this parameter reduces the variation of the torque that the machine supports and therefore the generating unit can withstand a greater number of closures without fatigue on its shafts. The present work proposes a methodology to determine the value of the synchronization angle in a circuit breaker of a transmission line during a closing maneuver.