Present and future multiterminal HVDC systems: Current status and forthcoming developments

Abstract

Considering the importance that HVDC systems are expected to have in the future of power networks, this paper aims to provide a wide overview of the worldwide existing technologies and installations in the field of MTDC-HVDC systems. In particular, it analyses and describes both classic LCC-MTDC systems and present/future VSC-MTDC systems, the latter being based on multi-level converter technology. This way, it is expected that this paper will draw the attention of those researchers looking for a starting point, from where to be able to develop new analysis and developments that increase the applicability of future HVDC systems.