1. A new neutral-point-clamped PWM inverter;Nabae;IEEE Transactions on Industry Applications,1981
2. B. Bijlenga 2002
3. B. D. Railing J. J. Miller P. Steckley G. Moreau P. Bard L. Ronström J. Lindberg Cross-Sound Cable project: Second generation VSC technology for HVDC Proceedings of the Cigré Session 2004
4. I. Mattsson A. Ericsson B. D. Railing J. J. Miller B. Williams G. Moreau C. D. Clarke Murraylink: The longest underground HVDC cable in the world Proceedings of the Cigré Session 2004
5. T. Meynard H. Foch Multi-level conversion: High voltage choppers and voltage-source inverters Proceedings of the 23rd Annual IEEE Power Electronics Specialists Conference 1992