A novel sinusoidal boost-flyback CCM/DCM DC-DC converter

Shih Ming Chen, Chen Yu Wang, Tsorng Juu Liang

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

10 Citations (Scopus)

Abstract

This paper proposed a novel and simple sinusoidal boost-flyback continuous conduction mode (CCM) converter. This converter continuously produces half-sinusoidal voltage to a line frequency DC-AC inverter. This simple boost-flyback structure utilizes a coupled inductor to achieve a wider voltage gain range. The leakage inductance energy of the coupled inductor can be recycled to reduce the voltage stress and power losses. Consequently, the low-voltage rating and low-conduction resistance switch can be selected to reduce conduction losses and improve system efficiency. The magnetizing inductance of the coupled inductor is operated under CCM, and thus, the harmonic content of the output current is reduced. Finally, a 300 W prototype was implemented for feasibility verification. The maximum efficiency is 97.2%, and the full load efficiency is 96.2%. To verify its AC performance, the proposed converter has connected to a full bridge DC-AC inverter to simulate a micro inverter system with the highest efficiency of 96% and 94.5%under full load condition. The output current total harmonic distortion is 1.3%.

Original languageEnglish
Title of host publicationAPEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3512-3516
Number of pages5
ISBN (Print)9781479923250
DOIs
Publication statusPublished - 2014
Event29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States
Duration: 2014 Mar 162014 Mar 20

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
CountryUnited States
CityFort Worth, TX
Period14-03-1614-03-20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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