Synchronverter to damp multiple electromechanical oscillations

This paper presents a deep investigation on the synchronverter performance as a Power Oscillation Damping (POD) device. It is applied to damp multiple electromechanical oscillations in the Brazilian Transmission Grid. The electromechanical oscillations are identified through a filter that receives the measured active power and provides the reference to the synchronverter controller. In this way, the proper designing of the filter is substantial to ensure the effectiveness of the damping performance. This work is an extended investigation of the synchronverter operation in substitution of the SVC connected at the Bom Jesus da Lapa substation. Here the filter is designed to keep the former performance on damping the 0.31 Hz mode, plus to attenuate the 0.62 Hz mode. The filter designs are compared theoretically and a simulation of the investigated scenario shows the better performance of the proposed filter to damp both 0.31 and 0.62 Hz modes.