Open Science Research Excellence
G. Kishor Babu and  B. Madhu Kiran,  Improving the Voltage Level in High Voltage Direct Current Systems by Using Modular Multilevel Converter.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2019, vol. 151(7). 492 - 506[viewed 24 August 2019]. Available from: http://waset.org/publications/10010591.