A nonlinear optimization tool for the full-bridge zero-voltage-switched DC-DC converter

Author

Lotfi, Ashraf W. ; Chen, Qian ; Lee, Fred C.

Author_Institution

Virginia Power Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

fYear

1992

fDate

29 Jun-3 Jul 1992

Firstpage

1301

Abstract

The fundamental equations characterizing the full-bridge zero-voltage-switched (ZVS) DC-DC power converter are utilized in a nonlinear design optimization routine. The design is subject to realistic constraints along with an objective function of minimal total volume and/or maximum efficiency. The routine is used to study the effects of switching frequency, leakage inductance and load range for ZVS on the efficiency and size. Maximum efficiency is shown to occur when ZVS is maintained in the immediate vicinity of full load operation. Experimental measurements confirm computed predictions

Keywords

network synthesis; optimisation; power convertors; switching circuits; DC-DC power converter; ZVS; design; efficiency; full load operation; leakage inductance; load range; network synthesis; nonlinear optimization; size; switching circuits; switching frequency; total volume; Artificial intelligence; Circuit faults; Constraint optimization; DC-DC power converters; Equations; Inductance; Magnetic cores; Power electronics; Pulse width modulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE

Conference_Location

Toledo

Print_ISBN

0-7803-0695-3

Type

conf

DOI

10.1109/PESC.1992.254726

Filename

254726