A method to control static var compensator by using H∞ controller

This paper presents a new SVC control scheme using H_∞ control design, based on the linear matrix inequality (LMI) approach, which achieve voltage control and damping of power oscillations simultaneously. The main feature of the LMI based H_∞ design is that selection of weighting function is more easier than the Riccati based H_∞ design approach. The proposed controller is available in real power system, since the model of SVC in simulation is a detailed model. Also, control of voltage and simultaneous damping of power oscillations for single-machine infinite-bus power system is demonstrated through simulation studies.