Switched-capacitor multilevel inverters for high frequency AC microgrids

S. Raghu Raman, Yuanmao Ye, K. W.Eric Cheng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

21 Citations (Scopus)

Abstract

This paper proposes a novel topology of a switched-capacitor multilevel inverter for high frequency AC microgrids. It employs multiple DC sources which make it ideal to be employed in renewable energy sources based AC microgrids. With the proliferation in renewable energy based solar and wind farms, such multi-input topologies gain tremendous potential. Switched-capacitor based DC-DC converter in the front end produces multiple levels at the DC bus. Further, the H-bridge inverter obtains corresponding bipolar levels and a zero level at the output. The problem of capacitor voltage balancing is inherently solved as the capacitors are charged to the input voltage every cycle. Working principle and primary analysis of the topology are presented. Simulation outcomes are validated with experimental results at different distribution frequencies and power levels.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2559-2564
Number of pages6
ISBN (Electronic)9781509053667
DOIs
Publication statusPublished - 17 May 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 26 Mar 201730 Mar 2017

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period26/03/1730/03/17

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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