Multi-port Converter with Square-wave-voltage Multilevel Converter and Active Power Filter Connected in Series

Jun Ichi Itoh, Mitsuru Miyashita, Keisuke Kusaka, Yuichi Noge, Masaki Ishibashi

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

Abstract

This paper proposes a multi-port converter, which has multiple power sources with a buck converter or inverter connected in series, with an active power filter for a reduction of power conversion loss and circuit volume of an energy storage system. The proposed circuit consists of a multilevel converter, a series-active power filter, and an unfolder. In the proposed circuit, the number of inductors is reduced from four to two compared to the conventional circuit. Moreover, the proposed circuit reduces harmonic components of output voltage with a multilevel topology in order to reduce the volume of a filter inductor. In addition, a voltage control system is proposed for the converter to regulate the capacitor voltage of the active power filter. It is demonstrated that a 1-kW prototype circuit with Si-MOSFETs achieves a maximum efficiency of 99.3%. Furthermore, the capacitor voltage is regulated to constant even when the load power is stepped from no-load to full load.

Original languageEnglish
Title of host publication2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6388-6395
Number of pages8
ISBN (Electronic)9781728103952
DOIs
Publication statusPublished - Sep 2019
Externally publishedYes
Event11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States
Duration: Sep 29 2019Oct 3 2019

Publication series

Name2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
CountryUnited States
CityBaltimore
Period9/29/1910/3/19

All Science Journal Classification (ASJC) codes

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

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