Experimental verification of buck-boost converter based micro inverter for minimization of magnetic components

Yuichi Noge, Masamichi Yamaguchi, Mitsuru Miyashita, Mingcong Deng

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

Abstract

This paper discusses a single-phase inverter with a buck-boost converter for single-phase applications such as photovoltaic (PV) systems. The inverter consists of a buck-boost converter and an H-bridge unfolder circuit. The inverter requires only 1 controllable switch to obtain 100 Hz pulsating DC-link voltage. However, a conventional PV inverter requires two-stage power conversion. Thus, the power conversion efficiency can be increased. The inverter features high compatibility with WBG power devices because of high switching frequency of the buck-boost chopper circuit to minimize the boost reactor. The equivalent impedance of the boost reactor is 0.0077% of the grid impedance. Simulation results, experimental results and the control strategy are discussed. Experiments demonstrate that the proposed inverter can output currents of low total harmonic distortion.

Original languageEnglish
Title of host publication2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538632468
DOIs
Publication statusPublished - Oct 2 2017
Externally publishedYes
Event20th International Conference on Electrical Machines and Systems, ICEMS 2017 - Sydney, Australia
Duration: Aug 11 2017Aug 14 2017

Publication series

Name2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017

Conference

Conference20th International Conference on Electrical Machines and Systems, ICEMS 2017
CountryAustralia
CitySydney
Period8/11/178/14/17

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization

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