Robust Loop-shaping Power Oscillation Damping Control of FACTS Devices in Large Power Systems

This paper presents the FACTS robust loop-shaping Power Oscillation Damping (POD) controller design in large power systems. By applying the model reduction and modern robust loop-shaping control technique, the FACTS robust loop-shaping controller is realized. This robust loop-shaping controller exploits the advantages of both conventional loop-shaping and modern H∞robust control techniques. Moreover, it is a decentralized approach and suitable for FACTS controller design in real large power systems. The performance of the proposed control has fulfilled the robust stability and robust performance criteria. Furthermore, the simulation has proved that using the proposed controller, the power oscillation damping behavior is also satisfactory under large disturbances.