NDLI: Efficiency-Based Current Distribution Scheme for Scalable Digital Power Converters

Content Provider	IEEE Xplore Digital Library
Author	Effler, S. Halton, M. Rinne, K.
Copyright Year	1986
Abstract	The trend in next-generation switched-mode power supplies will lead to modular, scalable solutions, which deliver power efficiently over a wide range of operation. This paper details a new approach to introduce more advanced control features to improve system efficiency into these scalable solutions. While these methods have been incorporated into multiphase converters in the past, they all require the distribution of information among the individual converters. An advantage of the proposed method is that it does not require such communication signals between the individual power supplies and is, therefore, fully scalable and cost effective. A system comprising individual, smart converters is proposed, where each converter regulates its respective output power to a level with high efficiency. Converters not required for the delivered output power are shut down. The proposed approach is analyzed theoretically. Implementation details for a field-programmable gate array experimental prototype system are given. The system performance for a four-converter prototype system is analyzed and discussed. The efficiency obtained is compared with the efficiency of a multiphase system with phase-shedding operation and the efficiency of a system with independent power converters without phase-shedding support.
Sponsorship	IEEE Power Electronics Society
Starting Page	1261
Ending Page	1269
Page Count	9
File Size	887591
File Format	PDF
ISSN	08858993
Volume Number	26
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Converters Current distribution Power generation Power supplies Optimization Inductors Threshold current parallel interleaved dc-dc converter digital control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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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
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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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