Seminarium

Title: Modular Multilevel Converter Technologies for HVDC Applications: Forms and Functions

Speaker: Alireza Nami, Principal Scientist, ABB Corporate Research, Västerås, Sweden

Date and time: Friday 8th May, 15:15 - 17:00

Venue: Q11

Abstract:

In the tutorial, the principle of modularity is used to outline the form and functionality of different multilevel voltage and current source converter topologies. This tutorial addresses the challenges and issues relating to the implementation of multilevel converters for high power applications and specifically on HVDC systems. Commutation cells with solid state devices and the primary energy storage are synthesized as building blocks which are contributing to the modularity of the systems. By various topological combinations, using different basic commutation cells, this tutorial will offer a comprehensive view on a variety of modular multilevel converter (MMC) topologies. Participants to this tutorial will gain practical insight into modular multilevel converter realization together with an industrial viewpoint on challenges as well as the future trends for HVDC applications.

Speaker Bio:

Alireza Nami (S’07-M’10) received the B.Eng. and M.S. degree in Electrical Engineering from Mazandaran University, Iran, in 2004 and 2006, respectively and the Ph.D. degrees in Electrical Engineering from Queensland University of Technology, Australia in 2010. From 2010 to 2011 he was a post-doctoral research fellow at Global Center of Excellence at Kumamoto University in Japan. He is currently a Senior Scientist with the ABB Corporate Research Center in Sweden. His research interests include power electronics converters and their applications for HVDC and FACTS converters and control, grid connected, renewable energy systems, motor drives, and pulsed power supplies.