New ZVT topology for switched inductor high gain boost

Tong Yao, Chenhao Nan, Raja Ayyanar

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

4 Scopus citations

Abstract

This paper proposes a new high gain soft switching dc-dc topology based on switched inductor boost converter (SIBC). SIBC itself as a high gain boost topology has the issue of high conduction loss in switching diodes and high switching loss in the main switches. Also, it has severe EMI issue due to the diode path between input and switching node. The new topology is derived aiming at zero voltage switching (ZVS) turn on of the main switch. The new topology can achieve soft switching for all the switches and alleviate EMI issue. All the diodes achieve a zero current switching (ZCS) turn off without reverse recovery. The soft-switching-SIBC (SSSIBC) also reduces the conduction loss in switching diodes. A numerical simulation in PLECS and a prototype hardware are built for dc-dc stage of a PV micro-inverter 30 V to 200 V 300 W application with 100 kHz switching frequency. A 94.76 % power conversion peak efficiency is achieved.

Original languageEnglish (US)
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2199-2206
Number of pages8
ISBN (Electronic)9781509053667
DOIs
StatePublished - May 17 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: Mar 26 2017Mar 30 2017

Other

Other32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
CountryUnited States
CityTampa
Period3/26/173/30/17

Keywords

  • Active clamp
  • High gain boost
  • PV and micro-inverter
  • SIBC
  • SS-SIBC
  • Switched inductor
  • ZCS
  • ZVS
  • ZVT

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'New ZVT topology for switched inductor high gain boost'. Together they form a unique fingerprint.

  • Cite this

    Yao, T., Nan, C., & Ayyanar, R. (2017). New ZVT topology for switched inductor high gain boost. In 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017 (pp. 2199-2206). [7931004] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2017.7931004