VSCSystemen

VSCSystemen, in Dutch often written as VSC-systemen, is a term used to refer to voltage-source-converter based systems in the field of power electronics and electrical power transmission. These systems use voltage-source converters to control active and reactive power flow and to provide flexible AC transmission or DC interconnection. Typical architectures include modular multilevel converters and full-bridge topologies, employing semiconductor devices such as IGBTs. VSCSystemen enable direct interfacing between alternating current grids and direct current links, enabling rapid dynamic response, a potential reduction in footprint for some applications, and easier black-start capability compared with traditional line-commutated converters.

Applications include high-voltage direct current HVDC transmission using VSC links, flexible AC transmission systems (FACTS) elements such as STATCOMs, dynamic reactive power support, and integration of offshore wind farms or solar farms with the grid, as well as microgrids and maritime power systems.

Advantages of VSCSystemen include independent control of active and reactive power, improved ride-through and black-start capability, fast voltage control, modularity and scalability, and compact size in certain ratings. Challenges involve higher component count and switching losses, complex control and protection strategies, insulation and electromagnetic interference considerations, and costs at lower power levels.

Industry and research activity around VSCSystemen focuses on standardization, converter topology improvements, control algorithms, and grid integration strategies. See also HVDC, MMC, FACTS, and power electronics.