“A New Technology for Ac-Side Cascaded H-Bridge Cells for Multi-Level VSC-HVDC Transmission System”, Int. J. Emerg. Trends Sci. Technol., vol. 2, no. 07, Jul. 2015, Accessed: Oct. 24, 2026. [Online]. Available: https://www.ijetst.in/index.php/ijetst/article/view/825