J. Arrillaga, Y. Liu, and N. Watson, Flexible Power Transmission. The HVDC Options, 2007.

G. Asplund, Ultra high voltaje trasmission, ABB review, 2007.

J. Kreuse, The future is now, ABB review, 2008.

D. Ravemark and B. Normark, Light and invisible, ABB review, 2005.

A. Sannino, P. Sandeberg, L. Stendius, and R. Görner, Enabling the power of wind

R. Rudervall, J. Charpentier, and R. Sharma, High voltage direct current (hvdc) transmission systems. technology review paper

P. Kundur, Power systems stability and control, 1993.

M. Jiménez-carrizosa, F. Dorado-navas, G. Damm, and F. Lamnabhi-lagarrigue, Optimal power flow in multi-terminal hvdc grids with offshore wind farms and storage devices