Enhancing Power System Performance by Interaction of FACTS Controllers in Multi-Machine Environments with Integrated Unified Power Flow Controller

Abstract

This dissertation entails obtaining optimum placement of STATCOM on Nigeria’s North East 330 / 132 KV transmission system in other to improve the overall voltage profile of the transmission system and to minimize losses in the system. Static compensation devices are electrical devices which when placed on power systems improves the quality of the system. In this research work, STATCOM was placed on a Nigerian North East 12 bus flexible alternating current transmission system (FACTS). This was achieved by modelling the actual FACTS device using power systems analysis tool box of the MATLAB software. After modelling the system, particle swarm optimization technique was written in MATLAB and was used to determine the optimum placement of STATCOM on the 12-bus system, thereby improving the quality of the system. At the end of this research work, it was discovered that for the North East transmission system, the optimum placement of STACOM occurred at bus 11, that is the Yola 132 KV sub-transmission system, for single placement and at bus 11 and 12 (Yola and Bauchi sub-transmission system) for double placement of STATCOM.