JP2011146550A - Noncontact excitation superconducting magnet device - Google Patents

Noncontact excitation superconducting magnet device Download PDF

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JP2011146550A
JP2011146550A JP2010006437A JP2010006437A JP2011146550A JP 2011146550 A JP2011146550 A JP 2011146550A JP 2010006437 A JP2010006437 A JP 2010006437A JP 2010006437 A JP2010006437 A JP 2010006437A JP 2011146550 A JP2011146550 A JP 2011146550A
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superconducting magnet
excitation
superconducting
magnet device
transformer
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Hitoshi Hasegawa
均 長谷川
Takayuki Kashiwagi
隆行 柏木
Yasuaki Sakamoto
泰明 坂本
Taku Sasagawa
卓 笹川
Masaru Nagashima
賢 長嶋
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Railway Technical Research Institute
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/72—Electric energy management in electromobility

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a noncontact excitation superconducting magnet device, preventing a thermal intrusion into a low-temperature vessel in a time when exciting a superconducting magnet. <P>SOLUTION: The noncontact excitation superconducting magnet device is equipped with: an AC excitation power supply 2 arranged to a normal temperature part 1; and a primary exciting coil for a transformer connected to the AC excitation power supply 2 in the normal temperature part. The noncontact excitation superconducting magnet device is also equipped with, in the low-temperature vessel 4: a secondary exciting coil 3 for the transformer excited by the primary exciting coil; a rectifier 6 connected to the secondary exciting coil 3; a superconducting switch 7 connected to the rectifier 6; and a superconducting magnet 6 connected in parallel with the superconducting switch 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、非接触励磁超電導磁石装置に係り、磁気浮上式鉄道車両に搭載可能な非接触励磁超電導磁石装置に関するものである。   The present invention relates to a non-contact exciting superconducting magnet device, and more particularly to a non-contact exciting superconducting magnet device that can be mounted on a magnetically levitated railway vehicle.

図２は従来の電流リード部を有する超電導磁石装置の回路図である。
この図において、１０１は直流電源（励磁電源）、１０２は直流電源１０１に接続される電流リード部、１０３は電流リード線、１０４は電流リード線１０３に接続される超電導スイッチ、１０５は電流リード線１０３によって超電導スイッチ１０４と並列に接続される超電導磁石（超電導コイル）である。なお、１０６は低温容器（低温部）、１０７は常温部（外部）である。 FIG. 2 is a circuit diagram of a conventional superconducting magnet device having a current lead portion.
In this figure, 101 is a DC power supply (excitation power supply), 102 is a current lead connected to the DC power supply 101, 103 is a current lead, 104 is a superconducting switch connected to the current lead 103, and 105 is a current lead. 103 is a superconducting magnet (superconducting coil) connected in parallel with the superconducting switch 104. Reference numeral 106 denotes a low temperature container (low temperature part), and 107 denotes a normal temperature part (external).

従来の超電導磁石１０５を励磁する方法では、常温部１０７（外部）と低温容器１０６内の超電導磁石１０５間を電気的に結ぶ電流リード部１０２を配置し、外部の直流電源１０１から超電導磁石１０５へ電流を直接供給するのが一般的である（下記特許文献１，２参照）。   In the conventional method of exciting the superconducting magnet 105, the current lead portion 102 that electrically connects the normal temperature portion 107 (outside) and the superconducting magnet 105 in the low temperature vessel 106 is disposed, and the external DC power source 101 is connected to the superconducting magnet 105. Generally, current is directly supplied (see Patent Documents 1 and 2 below).

特開２０００−３１５６０６号公報JP 2000-315606 A 特開平６−２０８９２２号公報JP-A-6-208922

しかしながら、上記した超電導磁石１０５に接続される電流リード部１０２は、常温部１０７と低温容器１０６とに渡って配置されているため、その電流リード部１０２から低温容器１０６への熱侵入が大きいことが問題となっている。電気抵抗が小さい金属を電流リード部１０２に用いた場合、熱伝導率も高くなるため、電流リード部１０２での電気的な損失を減らそうとすると、熱侵入も大きくなってしまう。   However, since the current lead portion 102 connected to the superconducting magnet 105 is disposed across the normal temperature portion 107 and the low temperature vessel 106, heat penetration from the current lead portion 102 into the low temperature vessel 106 is large. Is a problem. When a metal having a small electrical resistance is used for the current lead portion 102, the thermal conductivity is also increased. Therefore, if an electrical loss in the current lead portion 102 is reduced, the heat penetration also increases.

本発明は、上記状況に鑑みて、超電導磁石を励磁するにあたり、電流リード部から低温容器への熱侵入をなくすことができる非接触励磁超電導磁石装置を提供することを目的とする。   In view of the above situation, an object of the present invention is to provide a non-contact exciting superconducting magnet device capable of eliminating heat intrusion from a current lead portion to a cryogenic vessel when exciting a superconducting magnet.

本発明は、上記目的を達成するために、
〔１〕非接触励磁超電導磁石装置であって、常温部に配置される交流励磁電源と、この交流励磁電源に接続される変圧器の一次励磁コイルとを常温部に備え、前記一次励磁コイルによって励磁される変圧器の二次励磁コイルと、この二次励磁コイルに接続される整流器と、この整流器に接続される超電導スイッチと、この超電導スイッチと並列に接続される超電導磁石とを低温容器内に具備することを特徴とする。 In order to achieve the above object, the present invention provides
[1] A non-contact excitation superconducting magnet apparatus, comprising: an AC excitation power source disposed in a room temperature portion; and a primary excitation coil of a transformer connected to the AC excitation power source. A secondary excitation coil of a transformer to be excited, a rectifier connected to the secondary excitation coil, a superconducting switch connected to the rectifier, and a superconducting magnet connected in parallel to the superconducting switch are placed in a cryogenic vessel. It is characterized by comprising.

〔２〕上記〔１〕記載の非接触励磁超電導磁石装置において、前記超電導磁石装置を磁気浮上式鉄道車両に搭載することを特徴とする。   [2] The non-contact excitation superconducting magnet device according to [1], wherein the superconducting magnet device is mounted on a magnetically levitated railway vehicle.

本発明によれば、従来の超電導磁石の電流リード部に代わり、非接触による給電方式を使用することで、超電導磁石（超電導コイル）を配置する低温容器内への熱侵入がなくなり、超電導磁石装置全体の保冷性能の向上を図ることができる。   According to the present invention, by using a non-contact power feeding method instead of the current lead part of the conventional superconducting magnet, heat penetration into the cryogenic container in which the superconducting magnet (superconducting coil) is arranged is eliminated, and the superconducting magnet device The overall cooling performance can be improved.

本発明の実施例を示す非接触励磁超電導磁石装置の回路構成図である。It is a circuit block diagram of the non-contact excitation superconducting magnet apparatus which shows the Example of this invention. 従来の従来の電流リード部を有する超電導磁石装置の回路図である。It is a circuit diagram of the conventional superconducting magnet apparatus which has the conventional current lead part.

本発明の非接触励磁超電導磁石装置は、常温部に配置される交流励磁電源と、この交流励磁電源に接続される変圧器の一次励磁コイルとを常温部に備え、前記一次励磁コイルによって励磁される変圧器の二次励磁コイルと、この二次励磁コイルに接続される整流器と、この整流器に接続される超電導スイッチと、この超電導スイッチと並列に接続される超電導磁石とを低温容器内に具備する。   The non-contact excitation superconducting magnet apparatus of the present invention comprises an AC excitation power source disposed in a room temperature part and a primary excitation coil of a transformer connected to the AC excitation power source in the room temperature part, and is excited by the primary excitation coil. A low-temperature vessel including a secondary excitation coil of the transformer, a rectifier connected to the secondary excitation coil, a superconducting switch connected to the rectifier, and a superconducting magnet connected in parallel to the superconducting switch. To do.

以下、本発明の実施の形態について詳細に説明する。
図１は本発明の実施例を示す非接触励磁超電導磁石装置の回路構成図である。
この図に示すように、２は常温部１に配置される交流励磁電源、３は常温部１に配置され、交流励磁電源２に接続される変圧器の一次励磁コイル、４は低温容器であり、この低温容器４内に、一次励磁コイル３によって励磁される変圧器の二次励磁コイル５と、この二次励磁コイル５に接続される整流器６と、この整流器６に接続される超電導スイッチ７と、この超電導スイッチ７と並列に接続される超電導磁石（超電導コイル）８をそれぞれ配置する。 Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a circuit configuration diagram of a non-contact excitation superconducting magnet apparatus showing an embodiment of the present invention.
As shown in this figure, 2 is an AC excitation power source arranged in the room temperature part 1, 3 is a primary excitation coil of a transformer arranged in the room temperature part 1 and connected to the AC excitation power source 4, and 4 is a cryogenic container. In this cryogenic vessel 4, a secondary excitation coil 5 of a transformer excited by the primary excitation coil 3, a rectifier 6 connected to the secondary excitation coil 5, and a superconducting switch 7 connected to the rectifier 6. A superconducting magnet (superconducting coil) 8 connected in parallel with the superconducting switch 7 is disposed.

このように、常温部１側に変圧器の一次励磁コイル３を、低温容器４内に変圧器の二次励磁コイル５と、整流器６を設置して、交流励磁電源２により超電導磁石８へ電力を供給する。なお、この給電方式では、変圧器の一次励磁コイル３と二次励磁コイル５との非接触励磁（間隙を有する励磁）となるので、周波数及び一次電流を調整することにより、超電導磁石８へ供給する電力の調整を行うことができる。   In this way, the primary excitation coil 3 of the transformer is installed on the normal temperature part 1 side, the secondary excitation coil 5 of the transformer and the rectifier 6 are installed in the cryogenic vessel 4, and power is supplied to the superconducting magnet 8 by the AC excitation power source 2. Supply. In this power feeding method, non-contact excitation (excitation having a gap) between the primary excitation coil 3 and the secondary excitation coil 5 of the transformer is performed, and thus the superconducting magnet 8 is supplied by adjusting the frequency and the primary current. The power to be adjusted can be adjusted.

このように構成することにより、超電導磁石８を非接触で給電することができ、従来の超電導磁石の電流リードを用いないため、常温部１から低温容器４内の超電導磁石８への熱侵入がなくなり、超電導磁石装置全体の保冷性能を向上させることができる。
また、本発明の非接触励磁超電導磁石装置は、磁気浮上式鉄道車両に搭載可能な非接触励磁超電導磁石装置としてメンテナンス上も好適である。 With this configuration, the superconducting magnet 8 can be fed in a non-contact manner and the current lead of the conventional superconducting magnet is not used. The cooling performance of the entire superconducting magnet device can be improved.
The non-contact excitation superconducting magnet device of the present invention is also suitable for maintenance as a non-contact excitation superconducting magnet device that can be mounted on a magnetically levitated railway vehicle.

なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。   In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

本発明の非接触励磁超電導磁石装置は、超電導磁石への熱侵入をなくし、保冷性能を向上させた超電導磁石装置として利用可能である。   The non-contact excitation superconducting magnet device of the present invention can be used as a superconducting magnet device that eliminates heat intrusion into the superconducting magnet and has improved cooling performance.

１ 常温部
２ 交流励磁電源
３ 変圧器の一次励磁コイル
４ 低温容器
５ 変圧器の二次励磁コイル
６ 整流器
７ 超電導スイッチ
８ 超電導磁石 DESCRIPTION OF SYMBOLS 1 Room temperature part 2 AC excitation power supply 3 Primary excitation coil of transformer 4 Low temperature container 5 Secondary excitation coil of transformer 6 Rectifier 7 Superconducting switch 8 Superconducting magnet

Claims (2)

（ａ）常温部に配置される交流励磁電源と、該交流励磁電源に接続される変圧器の一次励磁コイルとを常温部に備え、
（ｂ）前記一次励磁コイルによって励磁される変圧器の二次励磁コイルと、該二次励磁コイルに接続される整流器と、該整流器に接続される超電導スイッチと、該超電導スイッチと並列に接続される超電導磁石とを低温容器内に具備することを特徴とする非接触励磁超電導磁石装置。 (A) An AC excitation power source arranged in the normal temperature part and a primary excitation coil of a transformer connected to the AC excitation power source are provided in the normal temperature part,
(B) A secondary excitation coil of a transformer excited by the primary excitation coil, a rectifier connected to the secondary excitation coil, a superconducting switch connected to the rectifier, and connected in parallel to the superconducting switch. A non-contact excitation superconducting magnet device comprising a superconducting magnet in a cryogenic container. 請求項１の非接触励磁超電導磁石装置において、前記超電導磁石装置を磁気浮上式鉄道車両に搭載することを特徴とする非接触励磁超電導磁石装置。   2. The non-contact excitation superconducting magnet apparatus according to claim 1, wherein the superconducting magnet apparatus is mounted on a magnetically levitated railway vehicle.
JP2010006437A 2010-01-15 2010-01-15 Noncontact excitation superconducting magnet device Withdrawn JP2011146550A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013223354A (en) * 2012-04-17 2013-10-28 Mayekawa Mfg Co Ltd Rectifier
CN110108504A (en) * 2019-05-13 2019-08-09 桂林电子科技大学 The non-contact excitation of cargo vehicle body mode and non-cpntact measurement acquisition methods
JP2020507925A (en) * 2017-02-09 2020-03-12 トカマク エナジー リミテッド Magnet assembly and method for powering a superconducting coil of the magnet assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013223354A (en) * 2012-04-17 2013-10-28 Mayekawa Mfg Co Ltd Rectifier
JP2020507925A (en) * 2017-02-09 2020-03-12 トカマク エナジー リミテッド Magnet assembly and method for powering a superconducting coil of the magnet assembly
CN110108504A (en) * 2019-05-13 2019-08-09 桂林电子科技大学 The non-contact excitation of cargo vehicle body mode and non-cpntact measurement acquisition methods

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