An Advanced FACTS Controller for Power Flow Management in Transmission System Using IPFC

This paper presents an advanced FACTS controller for power flow management in transmission system using IPFC. Regulator uncertainty, cost, and lengthy delays to transmission line construction are just a few of the barriers that have resulted in the serious deficiency in power transmission capacity that currently prevails in many regions. Solving these issues requires innovative tool on the part of all involved. Low environmental-impact technologies such as flexible AC transmission system (FACTS) and dc links are a proven solution to rapidly enhancing reliability and upgrading transmission capacity on a long-term and cost-effective basis. Interline power flow controller (IPFC) is a new concept of FACTS controller for series compensation with the unique capability of power flow management among multi-line of a substation. In this work mainly concentrated on choosing a suitable voltage source converter, to employ it in the IPFC. A 48 pulse multilevel inverter has been developed by cascading several units of three level diode clamped multilevel inverter (NPCI) with the help of phase shifting transformer. A simple and typical test system model has been developed to check the performance of IPFC an advanced FACTS controller. A closed loop controller has been developed to maintain the voltage profile of the test system.