DC-DC converter group with large output current based on digital control

Author

Hongli, Cheng ; Shuwen, Jia ; Jian, Liu ; Li, Wang

Author_Institution

Sch. of Commun. & Infrmation Eng., Xi´´an Univ. of Sci. & Technol., Xi´´an, China

Volume

3

fYear

2009

fDate

19-20 Dec. 2009

Firstpage

101

Lastpage

104

Abstract

To benefit the parallel current balancing, a novel digital control strategy, i.e., the current following control, is put forward. A current following control based Buck DC-DC converter-group is described. The main controller collect the output voltage and the output current in the real time, based on which, the desired output current for each Buck DC-DC converter is worked out and transferred to the corresponding sub-controller. The sub-controller regulates the output current of the converter to the desired value by using the current following control. Experiment and simulation results are given showing the feasibility and effectiveness of the proposed approach.

Keywords

DC-DC power convertors; digital control; electric current control; switching convertors; DC-DC converter group; digital control; large output current; parallel current balancing; sub-controller; switching converters; DC-DC power converters; Digital control; Intelligent transportation systems; Low voltage; Matrix converters; Microprocessors; Power engineering and energy; Sliding mode control; Switching converters; Voltage control; Buck converters; DC-DC converters; digital control; parrallel currrnt balancing; switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Intelligent Transportation System (PEITS), 2009 2nd International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-4544-8

Type

conf

DOI

10.1109/PEITS.2009.5406805

Filename

5406805