A Novel Hardware and PWM Scheme for Modular Multilevel Converter using Wide Band Gap Devices

Prince Kumar, Jeyaram Durga Manian Deivanayagam, T. Sreekanth, Abhijit Kshirsagar, Ned Mohan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a new modulation scheme for a low loss, low cost, modular multi-level converter to connect renewables to the grid at medium or high voltage. The proposed scheme generates a multi-level voltage output with low loss, low harmonic distortion, and is modular in nature. Modular Multilevel Converters (MMC) with high frequency transformers are becoming popular due to high efficiency, lower harmonics and less size compared to conventional transformer. The topology discussed in this paper compromises of a full-bridge converter, which is then connected to multiple High Frequency Link sub-modules via high frequency transformers. Each sub-module produces its own isolated DC voltage, and modules are inserted or removed to synthesize high AC voltages. In this paper, the switching loss and cost is analyzed for different modulation techniques and is compared with the proposed scheme which includes wide band devices. Various PWM schemes are analyzed using MATLAB/Simulink and the simulation results are presented in this paper.

Original languageEnglish (US)
Title of host publication2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728142517
DOIs
StatePublished - Jan 2020
Event2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020 - Cochin, India
Duration: Jan 2 2020Jan 4 2020

Publication series

Name2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020

Conference

Conference2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020
CountryIndia
CityCochin
Period1/2/201/4/20

Keywords

  • GaN/SiC devices
  • Modular Multilevel Converter
  • Pulse width modulation
  • Switching losses
  • Wide Band Gap (WBG) devices

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    Kumar, P., Deivanayagam, J. D. M., Sreekanth, T., Kshirsagar, A., & Mohan, N. (2020). A Novel Hardware and PWM Scheme for Modular Multilevel Converter using Wide Band Gap Devices. In 2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020 [9070273] (2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy, PESGRE 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PESGRE45664.2020.9070273