Transient Performance of Synchronous Generators Boosted by a bank of Capacitor

Abstract

In this research the transient performance of synchronous generator boosted by a bank of capacitor and connected to infinite bus bar through transformer and feeder has been studied. The system is represented by using mathematical model based on Park's transformation. In this research the optimum value of the machine parameters have been deduced by using optimization algorithm method. In this research we found that higher level of boosting gives more damping torque during disturbance. So by using Fast Fourier Transform (FFT) analyze we found that higher level of boosting reduces the amplitude of a.c. components of armature current, load current and capacitor current during disturbance. In addition we deduced that increasing of MVA causes decreasing of critical fault clearing time (CFCT). The main conclusion of this thesis is to improve the behavior of synchronous generator during disturbance by connecting a bank of capacitors across the terminals of generator.