Rezki, M., and I. Griche. “Simulation and Modeling of a Five -Level (NPC) Inverter Fed by a Photovoltaic Generator and Integrated in a Hybrid Wind-PV Power System”. Engineering, Technology & Applied Science Research 7, no. 4 (August 9, 2017): 1759–1764. Accessed May 24, 2022. https://etasr.com/index.php/ETASR/article/view/1271.