Fast stability achievement through fuzzy logic based non-linear excitation control of synchronous generator

Power System Controllers are most commonly used for stabilized operation of power system under different operating conditions. Different conventional controller exists for excitation control to maintain power system voltages, for synchronism and stability. Many controllers work satisfactorily under steady state conditions, but needed their fast action under transient conditions. In this paper the impact of fuzzy logic controller on system performance observed through non-linear excitation control of synchronous generator under transient condition. The results of fuzzy logic controller are also compared with the conventional controller (PID).