Many of the Power Flow Controlling Devices are mostly used in the Transmission Lines in order to monitor the real as well as reactive power-flow variations. In this work provide an innovative power flow controlling device such as Distributed Power Flow Controller, this device also belongs to the FACTS family. This device is emerged from the Unified Power Flow Controller, there is a small differentiation between both these devices that is the common dc-link. In case of DPFC there is no existence of the dc link which connects both the converters. By design a DPFC device in MATLAB/Simulink to analyze the transmission line parameters

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An electric power system comprises of generation, transmission and distribution of electric energy. To meet today"s load demand different generations are interconnected via tie lines. This paper deals with AGC problem of a two area thermal system using Proportional-integral-derivative controller (PID). The controller parameters are tuned by using particle swarm optimization (PSO) and Many optimizing Liaisons (MOL) algorithms. Dynamic response of the PID controlled AGC tuned by both the algorithms are compared by applying 1% step load perturbation (SLP) in both areas at different conditions. The cost function is derived by taking the area control errors (ACE) of both the areas. The system is checked for robustness by varying the parameters of the governor, turbine and reheat from -50% to +50% in steps of 25%. Based on analysis, facts & figures the system is found to be robust and performs better when tuned by the MOL algorithm.

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