LFC Investigation with SHO tuned 1 Plus Fraction ID Controller

LFC (Load Frequency Control) in power system is essential to normalize the frequency deviations in power system during unpredicted load perturbations. Novel 1 Plus Fraction ID (1 plus FID) Controller is recommended in this article to adjust the frequency fluctuations in a dual area thermal system with EV aggregators. The gains of projected 1 plus FID controllers are carefully chosen by Selfish Herd Optimization (SHO) in the presence of an abrupt disturbance of 10% in control area 1 utilizing integral time absolute error (ITAE) as the objective/fitness function. In the initial analysis the dominance of 1 plus FID controller is witnessed over the PID controller during 10% load deviation in control area 1. In the latter case the effectiveness of the projected 1 plus FID controller is certified by applying haphazard loading in control area 1. The examination of the system responses are presented to establish the ascendency of the projected SHO tuned 1 plus FID controller over existing PID controller on the basis of settling time, undershoots and overshoots.