The increasing penetration of renewable energy systems to the grid requires a thorough reconsideration of the structure of transmission systems. To achieve a more efficient harvest of remotely placed renewable sources high-voltage dc transmission (HVdc) can be used. Voltage source converters (VSC) and especially Multilevel Modular converters (MMC), constitute a fast advancing
technology, which offers many control advantages over its Line-commutated converter (LCC) counterpart. Therefore, MMC-VSC has been recently adopted by most HVdc equipment manufacturers for the connection of far offshore wind farms (OWF), while at the same time it can facilitate the construction of multi-terminal HVdc (MTdc) networks.
Minos Kontos, TU Delft