Multilevel inverter for grid interconnection with square wave voltage sources and series connected active filter

Yuichi Noge, Mingcong Deng, Mitsuru Miyashita

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

Abstract

This paper proposes a photovoltaic module integrated microinverter using a gradationally controlled voltage source and a series connected active filter. Recently, a microinverter based on an isolated resonant DC-DC converter is widely used. A typical microinveter can achieve high efficiency around 97%. In addition, a microinverter system can achieve high Maximum Power Point Tracking (MPPT) efficiency by its small photovoltaic area. The proposed circuit is a combination of a gradationally controlled voltage source, an active filter connected in series and an unfolding circuit. This circuit reduces the power to be converted to 1/8 as compared with a conventional inverter. The control strategy for the proposed circuit is also discussed in this paper. Finally, the grid connected operation is verified by circuit simulation.

Original languageEnglish
Title of host publicationProceedings - 2018 International Conference on Advanced Mechatronic Systems, ICAMechS 2018
PublisherIEEE Computer Society
Pages233-237
Number of pages5
ISBN (Electronic)9781538671740
DOIs
Publication statusPublished - Oct 24 2018
Externally publishedYes
Event2018 International Conference on Advanced Mechatronic Systems, ICAMechS 2018 - Zhengzhou, China
Duration: Aug 30 2018Sep 2 2018

Publication series

NameInternational Conference on Advanced Mechatronic Systems, ICAMechS
Volume2018-August
ISSN (Print)2325-0682
ISSN (Electronic)2325-0690

Conference

Conference2018 International Conference on Advanced Mechatronic Systems, ICAMechS 2018
CountryChina
CityZhengzhou
Period8/30/189/2/18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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  • Cite this

    Noge, Y., Deng, M., & Miyashita, M. (2018). Multilevel inverter for grid interconnection with square wave voltage sources and series connected active filter. In Proceedings - 2018 International Conference on Advanced Mechatronic Systems, ICAMechS 2018 (pp. 233-237). [8506740] (International Conference on Advanced Mechatronic Systems, ICAMechS; Vol. 2018-August). IEEE Computer Society. https://doi.org/10.1109/ICAMechS.2018.8506740