NDLI: Maximum availability hybrid AC and DC energy systems for mission critical information and communication technology (ICT) service providers

Content Provider	IEEE Xplore Digital Library
Author	Grossoni, M. Cevenin, E. Bertolini, C. Huempfner, R. Despres, J.L. Gueguen, F.
Copyright Year	2002
Abstract	Customers that operate or depend on ICT service provision, like internet data centres or high bandwidth switching centres, often require mission critical availability. Various aspects of power protection system design and implementation must be carefully considered to ensure that this requirement is met. The type of power supply required by the various appliances is changing: in the past the AC-supplied ICT devices were the majority, but the trend will lead to a predominance of the DC-supplied devices in the near future, especially in the TLC applications. In the present day ICT high-technology major sites, different devices requiring either DC or AC power supply coexist. The use of DC and AC hybrid emergency power system designed with the latest technology is key. Redundancy of rectifiers, separated battery banks are among the major standpoints. For the AC supply utilization of vector control techniques, modular redundancy and advanced design of static switching architectures have to be considered. A significant portion of system failures is caused by problems in the distribution rather than by the failure of the power sources themselves. It is shown that using a hybrid system is the most effective way of protecting the whole no-break power distribution. The monitoring of each power supply device in the no-break distribution is centralized. Guidelines are proposed and their application is shown through real life case studies.
Sponsorship	Power Electron. Soc. IEEE
Starting Page	140
Ending Page	145
File Size	322598
Page Count	6
File Format	PDF
ISBN	0780375122
DOI	10.1109/INTLEC.2002.1048647
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-29
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Mission critical systems Communications technology Power supplies Power system protection Hybrid power systems Web and internet services Bandwidth Communication switching Home appliances
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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