Title:
SUPERCONDUCTING ENERGY STORAGE SYSTEM
Document Type and Number:
Japanese Patent JPH01177839
Kind Code:
A
Abstract:
PURPOSE:To obtain a system in which power loss is suppressed to a remarkably small value by providing a switch in series with a superconductor for forming a DC closing circuit at the time of storing energy, and operating to open or close the switch at the time of switching normal conduction/superconduction. CONSTITUTION:A system for forming a DC closing circuit by connecting superconducting coil 5 and a superconducting conductor 3 in series with the DC side of an AC/DC converter 1, and switching the conductor 3 to a superconducting state at the time of storing energy, a switch 2 is provided in series with the conductor 3. The switch 2 is closed immediately before the conductor 3 is switched to the superconducting state, and the switch 2 is opened immediately after the conductor 3 is switched to a normal conducting state. Thus, a large current circuit can be opened or closed even by the switch 2 having a small rated value, and power loss at the conductor 3 can be suppressed.
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Inventors:
NAGAMURA HIDEHIRO
Application Number:
JP54588A
Publication Date:
July 14, 1989
Filing Date:
January 05, 1988
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H02J15/00; (IPC1-7): H02J15/00
Attorney, Agent or Firm:
Kazuo Sato (2 outside)