A High Input Voltage Three-Phase ZVZCS DC-DC Converter with Vin /3 Voltage Stress on Primary Switches

Author

Song, Ting-Ting ; Chung, Henry S H ; Tapuhi, Saad ; Ioinovici, A.

Author_Institution

City Univ. of Hong Kong, Kowloon

fYear

2007

Firstpage

350

Lastpage

356

Abstract

A high-voltage three-phase ZVZCS DC-DC converter with low voltage stress is presented in this paper. The voltage stress on the primary switches is only one-third of the input voltage. By using the phase shift pulsewidth modulation (PWM) and secondary snubber, four of the six primary switches are operating with zero-voltage switching (ZVS) and two of them are operating with zero-current switching (ZCS), in order to reduce the switching loss. Moreover, the converter has wide soft-switching range. Analysis of the converter´s operation is given. A 2.2 kW, 1000 V/110 V dc-dc converter prototype has been built and tested. Experimental results are favorably compared with theoretical predictions.

Keywords

DC-DC power convertors; PWM power convertors; switching convertors; zero current switching; zero voltage switching; PWM; phase shift pulsewidth modulation; power 2.2 kW; primary switches; secondary snubber; switching loss; three-phase ZVZCS DC-DC converter; voltage 1000 V; voltage 110 V; voltage stress; zero-current switching; zero-voltage switching; DC-DC power converters; Low voltage; Phase modulation; Pulse width modulation; Snubbers; Space vector pulse width modulation; Stress; Switches; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2007. PESC 2007. IEEE

Conference_Location

Orlando, FL

ISSN

0275-9306

Print_ISBN

978-1-4244-0654-8

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2007.4342012

Filename

4342012