Ajayi-Obe AA, Khan MA, Barendse PS. Techno-economic evaluation of five-level nested neutral point clamped converter topology for transformer-less connection of high-power wind energy conversion systems. J. energy South. Afr. [Internet]. 2019 Sep. 18 [cited 2024 Jul. 3];30(3):33-4. Available from: https://journals.assaf.org.za/index.php/jesa/article/view/5691