A series-stacked architecture with isolated server-to-bus converters for high-efficiency data center power delivery
Zhang, Yizhe
Loading…
Permalink
https://hdl.handle.net/2142/98440
Description
Title
A series-stacked architecture with isolated server-to-bus converters for high-efficiency data center power delivery
Author(s)
Zhang, Yizhe
Issue Date
2017-07-21
Director of Research (if dissertation) or Advisor (if thesis)
Pilawa-Podgurski, Robert
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Power electronics
Data center
Power delivery architecture
Series-stacking
Differential power processing (DPP)
Direct current to direct current (DC-DC) conversion
Abstract
Series-stacked server power delivery architectures have been proposed recently that can achieve much higher energy efficiency than conventional power delivery architectures. When servers are connected in series, differential power processing (DPP) converters can be used to regulate the server voltages when the servers are consuming different amounts of current. Server-to-bus DPP architecture has unique advantages among several other DPP architectures such as being able to achieve the minimum power processed in the DPP converters, and having a higher reliability than other DPP architectures. This work presents the development of a server-to-bus DPP architecture for server power delivery. The hardware prototype is built with four 4-to-1 isolated DPP converters with GaN switches. Four 12V 120W Dell servers are used in the bench test to validate the operation of server-to-bus DPP. 98.99% efficiency is achieved while the servers are running a real-life data center computational load.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.