Power supply and control system for 40 T class hybrid magnet system

Author

Tezuka, Masaru ; Kojo, Tetsuya ; Naito, Masaji ; Toyoda, Eiji ; Hanai, Satoshi ; Inoue, Kiyoshi ; Takeuchi, Takao ; Itoh, Kikuo ; Kiyoshi, Tsukasa ; Wada, Hitoshi ; Maeda, Hiroshi

Author_Institution

Toshiba Corp., Tokyo, Japan

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2490

Lastpage

2494

Abstract

The construction of the 40 T class hybrid magnet system was completed at the Tsukuba Magnet Laboratory of NRIM. Now, the total system test is being performed. This system consists of a hybrid magnet composed of a water cooled magnet and a superconducting magnet, power supplies for these magnets, water cooling system, and control system. The power supply for the water cooled magnet is a low ripple power supply, and it also has a “soft stop circuit” to prevent quenching of the superconducting magnet. In order to confirm the achievement of low current ripple and efficiency of the soft stop circuit we carefully analyzed the behavior of this circuit. As a results, we confirmed that the performance of the power supply satisfies the specifications. Also, we verified efficiency of the soft stop circuit

Keywords

electromagnets; power supplies to apparatus; superconducting magnets; 40 T; NRIM; control system; current ripple; hybrid magnet; power supply; quenching; soft stop circuit; superconducting magnet; water cooled magnet; Circuit analysis; Control systems; Cooling; Laboratories; Magnetic circuits; Performance evaluation; Power supplies; Superconducting magnets; System testing; Temperature control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511378

Filename

511378