TLBO Based CC-PID-TID Controller for Load Frequency Control of Multi Area Power System

Abstract

This study discloses the design of a cascade controller to control the frequency and power interchange among control areas. Teaching learning based optimization (TLBO) algorithm is functional in three area thermal-hydro system to attain the constraints of cascaded-tilt integral derivative (CC-TID) controller. The recommended controller is the synchronization of both conventional and fractional-order calculus to minimize the error. Here, TID controller applied in primary loop to retain steadiness between generation and demand whereas proportional-integral-derivative (PID) controller applied as supplementary loop to control the frequency and tie-line power deviations. Routines of CC-PID-TID controller are achieved by using an objective function as integral of time multiplied absolute error (ITAE). Preeminence of this controller is verified by concerning the outcomes with lately available methodology such as cascade PI-TID controller for three area system employing same objective function. Furthermore, the performance of TLBO is assessed and related with differential evolution particle swarm optimization in terms of dynamic behaviours.