Performance improvement of a dc-dc converter feeding a telecommunication specific distributed power system using dynamic decoupling design

Author

Ahmadi, Reza ; Fajri, Poria ; Ferdowsi, Mehdi

Author_Institution

Electr. & Comput. Eng. Dept., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2012

fDate

Sept. 30 2012-Oct. 4 2012

Firstpage

1

Lastpage

7

Abstract

This work analyzes the stability of a distributed dc power system commonly used in telecommunication and data center applications and proposes a new design procedure based on dynamic decoupling of the effects of the downstream network on the upstream source converter. First, the small-signal model of the upstream converter is introduced. Next, the model of the downstream network is added to the converter model and the complete system model is extracted. Then, the loop gain of the upstream converter when it is feeding the downstream network and when it is feeding a single resistor is compared and the decoupling factor is found. Finally, simulation results are provided to verify the design procedure.

Keywords

DC-DC power convertors; telecommunication power supplies; converter model; data center; dc-dc converter feeding; distributed dc power system; downstream network; dynamic decoupling design; loop gain; performance improvement; resistor; telecommunication applications; telecommunication specific distributed power system; upstream source converter; Communications technology; Load modeling; Mathematical model; Power system stability; Stability analysis; Transfer functions; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2012 IEEE 34th International

Conference_Location

Scottsdale, AZ

ISSN

2158-5210

Print_ISBN

978-1-4673-0999-8

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2012.6374500

Filename

6374500