As we know in a practical power system there are many disturbances faced by different power system components applied on the
grid due to various reasons such as sudden load fluctuations, faults, generation loss and sudden load losses etc.
So in order to counter these disturbances we use a PID controller to maintain the stability of an AVR alternator. And the
determination of this PID controller parameters is done through various soft computing techniques from which we have used
Multiobjective optimisation which is described in this paper [9] [3]. The best way of transient stability analysis is by taking the step
response of the system which is what has been done in this paper.
