An algorithm for DC segmentation of AC power systems to mitigate electromechanical oscillations

In the last decades, various events have shown that electromechanical oscillations are a major concern for large interconnected Alternative Current (AC) power systems. DC segmentation - method consists in turning AC grids into set of asynchronous clusters linked by Direct (DC) links is promising solution to mitigate this and other issues. However, no systematic procedure given system exists so far. This paper aims at filling gap proposes an algorithm oscillations. proposal, implemented with High Voltage based on Source Converters (VSC-HVDC). The uses small-signal stability techniques concept dominant inter-area oscillation paths eliminate main mode system. will be explained using six-generator test it then used Nordic 44 proposed has been validated means non-linear timedomain simulation analysis (SSSA).