Jaya Algorithm Tuned FO-PID Controller with First Order Filter for Optimum Frequency Control

Load frequency control in power system has a major influence in managing the frequency of interconnected system. In this article a novel fractional order based PID controller with first order derivative filter (FOPIDF) is projected to regulate frequency oscillations in hybrid generation type unified electrical system. The various generating sources implemented in the two area model are wind, thermal, diesel & hydro units. Proper selection of controller gains can regulate the frequency of the unified system at desired level. Jaya algorithm is applied to attain the suitable gains of the designed FOPIDF controllers. Jaya algorithm tune the controller in the presence of an abrupt disturbance of 2 % in control area 1 utilizing integral time absolute error (ITAE) as the objective/fitness function. In the initial analysis the dominance of FOPIDF controller is witnessed over the PID controller during 2% load deviation in control area 1. In the latter case the efficacy of the projected FOPIDF controller is verified by modifying the loading of the control area 1. The examination of the system responses are presented to establish the ascendency of the projected Jaya tuned FOPIDF controller over existing PID controller on the basis of settling time, undershoots and overshoots.