IMPLEMENTATION OF UNIFIED POWER FLOW CONTROLLER (UPFC) FOR IMPROVEMENT OF VOLTAGE STABILITY IN A CONGESTED ELECTRIC NETWORK

IMPLEMENTATION OF UNIFIED POWER FLOW CONTROLLER (UPFC) FOR IMPROVEMENT OF VOLTAGE STABILITY IN A CONGESTED ELECTRIC NETWORK
 
ABSTRACT
As the demand of electricity from an already congested network increases, ensuring voltage stability across the network becomes challenging. One approach in ensuring system stability is to attain system redundancy but their economic and ecological limitations to this. A more cost effective means would involve the use of existing network component and incorporate less expensive scheme and policies to maintain reliable system operation. Flexible alternating Current Transmission System (FACTS) such as the Unified Power Flow Controller (UPFC) are devices incorporated to achieve improvement in overall system performance such s increasing transmission line flows, minimizing losses, and improving voltage profile across the network buses.