Stability performance of new static excitation system with boost-buck converter

This paper deals with the design and evaluation of a new static-excitation system for generator excitation systems to improve the steady-state and transient stabilities. It increases or maintains the generator field current by boosting the field voltage in the case of an input AC line voltage drop during and immediately after a fault. The validity of the proposed excitation system is verified with computer simulation. The simulation results of the stability analysis on the generator with the proposed excitation system is better than that of a conventional static excitation system and a conventional AC excitation system. Also, this proposed excitation system can be simply implemented and controlled by modern power electronics technology