NDLI: Prototype of SC Inverter

Content Provider	IEEE Xplore Digital Library
Author	Osamura, K. Sakai, A. Nakamura, T. Oka, T. Fukuda, S. Yamaguchi, S.
Copyright Year	2002
Abstract	At first a function of physical unit “half pair” including superconducting (SC) elements is described. By combining their plural units, a circuit is constructed, which has essential ability for the inverter action. In practice, the YBCO thin films were used for elements of two half-pairs, which connected with the metallic load Z of R_Z = 50 μΩ. AC magnetic field between 0.1 and 100 Hz was applied in order to transfer mutual elements from SC state to resistive one. The AC current of 50 Hz was observed on the load Z and its amplitude was I_Z,max = 1.0 A when the source DC current of I_o = 32 A was applied. Thus the efficiency became 2.8% in this case. When the frequency was 0.2 Hz, the efficiency became 14%. The main reason of the present low efficiency is owing to the resistance of SC elements. I_z,max increased remarkably when the I_o increased beyond the critical current of SC elements. The inverter action has been reproduced by the computer simulation under the non-linear conditions on the VI characteristics. The conditions giving high inverter efficiency was made clear. Thus the present results gave clear evidence of SC inverter action.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1445
Ending Page	1448
Page Count	4
File Size	188146
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Resistance Heating Superconducting magnets Magnetic circuits Switches Yttrium barium copper oxide yttrium compounds High-temperature superconductors inverters switching circuits
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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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