NDLI: Performance study of inductive output cryotronic converters

Content Provider	IEEE Xplore Digital Library
Author	Dronov, A. Ignatov, V. Misyulin, A.
Copyright Year	1965
Abstract	A matrix method of electric circuit analysis was used for the theoretical performance study of a converter based on both a fullwave rectifier and a cyclic superconducting transformer with two cryotrons. The solution for the loop current matrix allows to calculate the transient commutation process in any cryotronic converter under any shape of supply voltage. Expressions are given for the converter maximum current under load conditions. The experimental study of the commutation processes was conducted on the model of a cyclic-superconducting-transformer-based cryotronic converter at the working current of 800 A in the secondary coil ratio of the primary and secondary 800:1, of the superconducting transformer without a ferromagnetic core. In the cylindrical cryotrons the switching element is made of a bifilaly wound Pb-3.8% Sb tape and is placed between the control winding and the superconducting shield. In resistive state the valve resistance is 5.5 × 10^-3Ω at 4.2 K. A superconducting solenoid consisting of four disk coils connected in parallel served as the converter load, its inductance being 0.15 × 10^-3H. The measurements of currents in the secondary circuits and voltage drops on the cryotron valves were made by Hall probes and potential probes, respectively. The commutation processes were studied in conditions of pumping the current into inductive load and energy recuperation accumulated in the load through the superconducting transformer into its primary. The paper offers current oscillograms for the windings of control and voltage drops on the valves of both cryotrons, and also oscillograms for the transformer's primary and secondary and the load.
Sponsorship	IEEE Magnetics Society
Starting Page	836
Ending Page	839
Page Count	4
File Size	367550
File Format	PDF
ISSN	00189464
Volume Number	15
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1979-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting coils Matrix converters Superconducting films Valves Circuit analysis Rectifiers Shape Transformer cores Wounds Solenoids
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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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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