... Europe 2007, June 2 6-2 8, Madrid, Spain [17] J. Dorn, H. Huang, D.Retzmann, “Novel Voltage-Sourced Converters for HVDC and FACTS Applications”, Cigre Symposium, November 1- 4, 2007, Osaka, Japan ... implemented VSC converters for HVDC applications have been based on two or three-level technology which enables switching two or three different voltage levels to the AC terminal of the converter. To ... multilevel technology is depicted. A new and different multilevel approach is the modular multilevel converter (MMC) technology [9]. The principle design of conventional multilevel converter...