Geethalakshmi B. A Dynamic Model and Control Strategy for the Combined Multipulse Multilevel Converter Based HVDC System. Sci Tech Asia [internet]. 2014 Mar. 19 [cited 2025 Apr. 6];19(1):15-31. available from: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/17069