Photovoltaic module integrated microinverter with gradationally controlled voltage sources and series connected active filter

Yuichi Noge, Mitsuru Miyashita, Mingcong Deng

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

Abstract

In this paper, a photovoltaic module integrated microinverter with gradationally controlled voltage sources and a series connected buck converter or a full bridge inverter as an active filter is proposed. Recently, typical commercially used microinveter can achieve high efficiency. By using microinverter system, high Maximum Power Point Tracking (MPPT) efficiency by its small photovoltaic area can be achieved. The proposed circuit is a combination of a gradationally controlled voltage source with low switching frequency, a series connected active filter with high switching frequency and an unfolding circuit. The power to be converted in this circuit can be reduced to 1/8 as compared with a conventional full power conversion inverter. The circuit construction, the controller for the proposed circuits are described. In addition, the grid connected operations are verified by circuit simulation.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1910-1915
Number of pages6
ISBN (Electronic)9781509066841
DOIs
Publication statusPublished - Dec 26 2018
Externally publishedYes
Event44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 - Washington, United States
Duration: Oct 20 2018Oct 23 2018

Publication series

NameProceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018
CountryUnited States
CityWashington
Period10/20/1810/23/18

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Control and Optimization

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