1. VSC transmission;CIGRE B4-WG37;Technical Brochure 269,2005
2. HVDC with voltage source converters and extruded cables for up to ±300kV and 1000MW;Jacobson,2006
3. An overview introduction of vsc-hvdc: state-of-art and potential applications in electric power systems;Wang,2011
4. Voltage source converter HVDC links – the state of the art and issues going forward;Barnes;Energy Proc.,2012
5. R. Marquardt, Stromrichterschaltungen mit verteilten Energiespeichern, German Patent DE10103031 (2001).