Brief Introduction to Modular Multilevel Converters and Relative Concepts and Functionalities

Volume 6 Issue 1 January - March 2018

Survey Paper

Brief Introduction to Modular Multilevel Converters and Relative Concepts and Functionalities

Sonal Purkait*, Rahul Pandey**

* M.Tech Scholar, Department of Electrical Power System, Shri Shankaracharya Group of Institutions, Bhilai, Chhattisgarh, India.

** Assistant Professor, Department of Electrical and Electronics, Shri Shankaracharya Group of Institutions, Bhilai, Chhattisgarh, India.

Purkait, S., and Pandey, R. (2018). Brief Introduction to Modular Multilevel Converters and Relative Concepts and Functionalities. i-manager's Journal on Digital Signal Processing, 6(1), 33-39. https://doi.org/10.26634/jdp.6.1.15157

Abstract

With new developments in semiconductor technology, automation and control systems are booming. These sources have not only reduced the system size, but also allowed it to perform tasks that were impossible a few years back. Designing a DC-DC converter has always been a challenge, i.e, the way it should perform the conversion either unidirectional or bidirectional, compactness, power flow control, generation of a wide range of output levels, reduction in switching losses, etc. Among different DC-DC converters available, there is more scope for new topologies in multilevel converters. A unique multilevel converter that having striking features like high scalability, modular nature, internal fault cutback, regulation of voltage, and smaller space requirements is Modular Multilevel Converters (MMC). This paper sets an outline for studying Modular Multilevel Converters (MMC) to be applied and further developed for the wide range of applications. The later sections involve their fundamentals, modeling, control modulation, and some of the implemented applications.