A Review on Application of FACTS Devices in Power System Stability Improvement

The increase in demand of power has increased the complexity in power systems. This complexity often makes it difficult to obtain a good understanding of the behaviour of a system. The power generation and transmission are affected due to limited resources, environmental restrictions and other losses. The flexible alternating current transmission system (FACTS), an advanced technology based on power electronics, provides an opportunity to improve controllability, stability, and power transfer capability of AC transmission systems. This article presents a comprehensive review and evaluation of FACTS controllers in comparison with conventional power system stabilizers. Several technical publications related to FACTS installations have been highlighted and performance comparison of different FACTS controllers has been discussed.