Analysis of implementation possibilities and benefits of three-level half-bridge NPC topology in static auxiliary converters for rolling stock [Electronic resource]Vinnikov, Dmitri; Jalakas, Tanel; Roasto, IndrekPOWERENG 2009 : 2nd International Conference on Power Engineering, Energy and Electrical Drives : 18-20 March, 2009, Lisbon, Portugal2009 / p. 587-592 : ill. [CD-ROM] https://ieeexplore.ieee.org/document/4915180 Simulation and evaluation of control methods for the rolling stock static auxiliary converter based on three-level NPC inverter topology [Electronic resource]Roasto, Indrek; Vinnikov, Dmitri; Vodovozov, ValeryPOWERENG 2009 : 2nd International Conference on Power Engineering, Energy and Electrical Drives : 18-20 March, 2009, Lisbon, Portugal2009 / p. 593-598 : ill. [CD-ROM] https://ieeexplore.ieee.org/document/4915176/similar#similar