A novel high step-up DC-DC converter with zero DC bias current coupled-inductor for microgrid system

Chia Hua Yeh, Vi Ping Hsieh, Jiann-Fuh Chen

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

8 Citations (Scopus)

Abstract

A novel high step-up DC-DC converter for distributed generation (DG) system is proposed in this paper. The concept is composed of three capacitors, three diodes, one inputinductor and one coupled-inductor. By utilizing the leakage inductor energy to charge capacitor, and convert energy by the coupled-inductor, high step-up voltage gain and high efficiency can be achieved with an appropriate duty ratio. The voltage stresses on the main switch and output diode are reduced by a passive clamp circuit. Therefore, low resistance R DS(ON) for the main switch can be adopted to reduce conduction loss. In addition, the reverse-recovery problem of the diode is alleviated, and thus, the efficiency can be further improved. The operating principle and steady-state analysis of the voltage gain are also discussed in detail. Finally, a 24-V input voltage, 400-V output voltage, and 200-W output power prototype circuit of the proposed converter is implemented in the laboratory to verify the performance.

Original languageEnglish
Title of host publication1st International Future Energy Electronics Conference, IFEEC 2013
PublisherIEEE Computer Society
Pages388-394
Number of pages7
ISBN (Print)9781479900718
Publication statusPublished - 2013 Jan 1
Event1st International Future Energy Electronics Conference, IFEEC 2013 - Tainan, Taiwan
Duration: 2013 Nov 32013 Nov 6

Publication series

Name1st International Future Energy Electronics Conference, IFEEC 2013

Other

Other1st International Future Energy Electronics Conference, IFEEC 2013
CountryTaiwan
CityTainan
Period13-11-0313-11-06

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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