Abstract

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 are presented to demonstrate that the inverter-based compensator can successfully be used to damp the electromechanical oscillations of a generator.

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