Evaluation of a novel analog bi-directional ZVS controller for high frequency isolated DC-DC converters

Author

Mondal, Subrata K.

Author_Institution

AV Inc., Monrovia, CA

fYear

2008

fDate

10-13 Nov. 2008

Firstpage

743

Lastpage

748

Abstract

A novel analog zero voltage switching (ZVS) closed-loop controller for bi-directional high frequency galvanic isolated DC-DC converters in high performance power supply applications, has been proposed in this paper. The DC-DC bi-directional power flow scheme is based on comparing the closed-loop power demand with a reference power with the intention of generating phase shifting (power) angle between the dual active full bridge (DAFB) PWM converters. Direction of power flow can be forward or backward depending on direction of power command to the control board. A detailed simulation study of the system, supported by experimental steady state and transient results, is presented to validate the proposed technique. System performance is found to be excellent.

Keywords

DC-DC power convertors; PWM power convertors; closed loop systems; machine control; zero voltage switching; DC-DC bidirectional power flow scheme; analog bidirectional ZVS controller; closed-loop controller; closed-loop power demand; dual active full bridge PWM converters; high frequency galvanic isolated DC-DC converters; phase shifting angle; power supply; zero voltage switching; Bidirectional control; DC-DC power converters; Frequency conversion; Galvanizing; Load flow; Power demand; Power supplies; Switching converters; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE

Conference_Location

Orlando, FL

ISSN

1553-572X

Print_ISBN

978-1-4244-1767-4

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2008.4758046

Filename

4758046