HVDC, the next generation of transmission highlights with focus on extruded cable systems

Our world carries an increasing burden of increasing CO2 emissions. Rather than rationing the use of electric power we should all together organize ourselves towards a positive solution that benefits growth and a sustainable society. A corner stone is the HVDC technology that makes it possible to transport sustainable energy to the regions of consumptions that are often far away from each other. Todaypsilas commercially available highest HVDC transmission voltage is 800 kV. This system makes use of classic converter stations. The newer HVDC light technology, VSC converters and extruded cable systems that are commercially available, are characterized today by a highest voltage of 320 kV and 1000-1200 MW of transmission power. This article describes the need for higher HVDC transmission powers, the general technology of the VSC converter stations and an in-depth description of HVDC technology with a focus on extruded cable systems.