A New Symmetrical Three Phase Multilevel Inverter using Switched Capacitor Basic Units for Renewable Energy Conversion Systems

Diptish Saha, Tapas Roy

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

7 Citations (Scopus)

Abstract

Due to increase in availability of renewable energy sources, development of multilevel inverter topologies has become an interesting research area for researchers in recent years to further improve the effectiveness of inverter systems. Multilevel inverter (MLI) with switched capacitor as the basic unit is a notable development in MLI topologies which reduces the number of power supplies required in comparison to the conventional MLIs and are widely known as switched capacitor multilevel inverter (SCMLI). In SCMLI, multiple power supplies can be replaced by capacitors which are used in tandem to boost the output voltage. Further, they possess capacitor voltage balancing capability. In this paper, a novel switched capacitor based three phase MLI for renewable energy conversion systems is presented using phase disposition PWM (PDPWM) modulation technique. The proposed three phase MLI is modular in nature and number of source modules can be increased to get more number of output voltage levels. A comparison study between the proposed topology and the recently developed three phase MLI topologies has been discussed in different perspective such as required components, maximum output voltage generation, capacitor voltage balancing capability etc. Further, an extensive simulation study is done in MATLAB/SIMULINK to validate the effectiveness and feasibility of the proposed topology.
Original languageEnglish
Title of host publicationA New Symmetrical Three Phase Multilevel Inverter using Switched Capacitor Basic Units for Renewable Energy Conversion Systems
Number of pages6
Place of Publication2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT)
PublisherIEEE
Publication date23 Mar 2018
Pages368-374
ISBN (Print)978-1-5386-0797-8
ISBN (Electronic)978-1-5386-0796-1
DOIs
Publication statusPublished - 23 Mar 2018

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