NDLI: High power, high efficiency, low cost capacitor charger concept and demonstration

Content Provider	IEEE Xplore Digital Library
Author	Pokryvailo, A. Carp, C. Scapellati, C.
Copyright Year	2009
Description	Author affiliation: Spellman High Voltage Electronics Corporation, 475 Wireless Boulevard, Hauppauge, NY 11788, USA (Pokryvailo, A.; Carp, C.; Scapellati, C.)
Abstract	A 20-kJ/s, 10-kV, 1-kHz repetition-rate technology demonstrator design and testing are described. The goal of the development was combining high performance and versatility with low-cost design and good manufacturability. This goal was met using an energy-dosing converter topology with smart controls adapting the switching frequency in such a way as to ensure zero-current switching for all possible scenarios, keeping maximum duty cycle for high power. The switching is accomplished at a frequency of up to 55 kHz employing relatively slow IGBTs with low conduction losses. High efficiency allows all-air cooled design that fits into a 19"×10"×24" rack. Design guidelines are reviewed. Comprehensive PSpice models accounting for numerous parasitic parameters and mimicking controls for the frequency variation were developed, and simulation results are presented. Together with analytical tools, they predicted a pulse-to-pulse repeatability (PPR) of ±0.15 %; the measured figures are ±0.4 % and ±0.5 % for short- and long-term operation, respectively, at peak charging and repetition rate. Repeatability analysis is briefed upon here, and to larger extent, in an accompanying paper. Test methods are described. Typical current and voltage traces and results of thermal runs are presented.
Starting Page	801
Ending Page	806
File Size	603065
Page Count	6
File Format	PDF
ISBN	9781424440641
DOI	10.1109/PPC.2009.5386364
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Capacitors Testing Pulse measurements Manufacturing Switching converters Topology Switching frequency Zero current switching Insulated gate bipolar transistors
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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