Application and analysis of a power oscillation damping scheme using a voltage source inverter

In many cases, poorly-damped electromechanical oscillations prevent utilities from increasing power transfer over existing transmission lines. One method of improving the damping of such oscillations is to actively vary the inductive reactance of a transmission line using a controllable series compensator. This paper describes an investigation into the use of a particular inverter-based compensator for power oscillation damping. Detailed simulation results and practical measurements of a small, but representative laboratory-scale power system pre presented to demonstrate that the inverter-based compensator can successfully be used to damp the electromechanical oscillations of a generator.