Multi-input DC/DC converter based on the flux additivity

Author

Chen, Y.-M. ; Liu, Y.-C. ; Wu, F.-Y. ; Wu, T.-F.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi, Taiwan

Volume

3

fYear

2001

Firstpage

1866

Abstract

A multi-input DC/DC power converter based on flux additivity is proposed in this paper. Instead of combining input DC sources in the electricity form, the proposed converter combines input DC sources in magnetic form by adding up the produced magnetic flux together in the magnetic core of the coupled transformer. With phase-shifted pulse-width-modulation (PWM) control, the proposed converter can draw power from two different DC sources and deliver it to the load individually and simultaneously. The operation principle of the proposed converter has been analyzed in detail. The output voltage regulation and power flow control can be achieved by the proposed phase-shifted PWM control. A prototype converter with two different DC voltage sources has been successfully implemented. Computer simulations and hardware experimental results are presented to verify the performance of the proposed multi-input DC/DC converter.

Keywords

DC-DC power convertors; PWM power convertors; circuit simulation; field effect transistor switches; magnetic cores; magnetic flux; power MOSFET; power engineering computing; power semiconductor switches; power transformers; switching circuits; DC voltage sources; computer simulation; coupled transformer; flux additivity; hardware experiments; input DC sources; magnetic core; magnetic flux; multi-input DC/DC power converter; operation principle; output voltage regulation; phase-shifted PWM control; power flow control; Couplings; DC-DC power converters; Energy conversion; Magnetic analysis; Magnetic cores; Magnetic flux; Pulse transformers; Pulse width modulation; Pulse width modulation converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE

Conference_Location

Chicago, IL, USA

ISSN

0197-2618

Print_ISBN

0-7803-7114-3

Type

conf

DOI

10.1109/IAS.2001.955785

Filename

955785