A utility AC 400V grid-connected DC rail side active edge resonant ZVS-PWM DC-DC converter using high-frequency transformer parasitic components

Keiki Morimoto, T. Doi, H. Manabe, K. Fathy, S. P. Mun, S. K. Kwon, E. Hiraki, M. Nakaoka

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

1 Citation (Scopus)

Abstract

This paper presents two new circuit topologies of voltage source-fed soft-switching PWM inverter using a high frequency transformer parasitic inductive components with full-bridge or half-bridge configuration, which are more suitable for utility ac 400V-rms input mains. These circuits have each reverse conducting power semiconductor switching devices in series with high and low dc buslines, a single or two lossless snubbing capacitors in parallel with two dc buslines and additional diode components. Under die newly proposed high frequency soft-switching PWM inverter link dc-dc power converter circuits for utility ac 400V-rms input, all the active power switches in the fullbridge arms or half-bridge arm and dc buslines achieve ZCS turnon commutation operation and ZVS turn-off commutation operation, and consequently the total turn-off switching power losses can be significantly reduced. As a result, a high switching frequency for IGBTs used can be actually realized at a frequency band more than about 20 kHz. It is proved that the more the switching frequency of inverter increases, the more soft switching PWM dc-dc converters with a high frequency transformer have remarkable advantages for its power conversion efficiency and power density as compared with the conventional hard switching PWM full-bridge inverter type dc-dc converter. The practical effectiveness of these new converter topologies are confirmed for low voltage and large current dc power supplies as high performance arc welding machine from a practical point of view.

Original languageEnglish
Title of host publicationPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Pages238-244
Number of pages7
DOIs
Publication statusPublished - Dec 1 2007
Externally publishedYes
EventPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference - Orlando, FL, United States
Duration: Jun 17 2007Jun 21 2007

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306

Other

OtherPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
CountryUnited States
CityOrlando, FL
Period6/17/076/21/07

Keywords

  • Arc welding power supply for 400V AC grid
  • Dc-dc converter
  • High frequency transformer link
  • Input dc rail series switch assisted parallel lossless capacitor snubber
  • PWM
  • Soft switching

ASJC Scopus subject areas

  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Morimoto, K., Doi, T., Manabe, H., Fathy, K., Mun, S. P., Kwon, S. K., Hiraki, E., & Nakaoka, M. (2007). A utility AC 400V grid-connected DC rail side active edge resonant ZVS-PWM DC-DC converter using high-frequency transformer parasitic components. In PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference (pp. 238-244). [4341995] (PESC Record - IEEE Annual Power Electronics Specialists Conference). https://doi.org/10.1109/PESC.2007.4341995