JP2008245386A - Roadbed-installed superconducting magnetically levitated system concurrently functioning as propulsive levitation guide - Google Patents

Roadbed-installed superconducting magnetically levitated system concurrently functioning as propulsive levitation guide Download PDF

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JP2008245386A
JP2008245386A JP2007080519A JP2007080519A JP2008245386A JP 2008245386 A JP2008245386 A JP 2008245386A JP 2007080519 A JP2007080519 A JP 2007080519A JP 2007080519 A JP2007080519 A JP 2007080519A JP 2008245386 A JP2008245386 A JP 2008245386A
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JP4975496B2 (en
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Hitoshi Matsue
仁 松江
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Railway Technical Research Institute
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a roadbed-installed superconducting magnetically levitated system that concurrently functions as a propulsive levitation guide, wherein a null flux cable is unnecessary, upper and lower magnetic springs are soft and thus coil installation accuracy is not strict, and further a superconducting coil can be readily installed on a vehicle. <P>SOLUTION: The superconducting magnetically levitated system includes a ground coil 2, having coil 2A groups in a shape of figure "8" installed on a roadbed, a distribution line 3 connected to the ground coil 2, and a substation 1 on the ground having a three-phase alternating-current power supply connected to the distribution line 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、超電導磁気浮上システムに係り、特に、ヌルフラックスケーブルが不要であり、構成がシンプルな低コストでかつ磁気バネを低減できる推進浮上案内兼用路盤設置型超電導磁気浮上システムに関するものである。   The present invention relates to a superconducting magnetic levitation system, and more particularly to a propulsion levitation guide and roadbed installation type superconducting magnetic levitation system that does not require a null flux cable, has a simple configuration, and can reduce magnetic springs.

超電導磁気浮上システムにおいては、山梨実験線での長期耐久性などの確認試験などを実施しているところであるが、実用化にあたっては、更なる低コスト化を求められており、特に地上システムにおいては、低コスト化を実現するために、より簡単な構成が求められている。   The superconducting magnetic levitation system is undergoing confirmation tests such as long-term durability on the Yamanashi test line, but further cost reduction is required for practical use, especially in ground systems. In order to realize cost reduction, a simpler configuration is required.

歴史的経緯からすると、図６に示すように、宮崎実験線における対向浮上方式は、超電導磁石１０３を有する磁気浮上式車両１０２の浮上に関しては単純な矩形コイル１０１を床面におくだけでよく、かつ、上下磁気バネも柔らかく乗り心地としても問題なかったが、走行抵抗が大きいことや、推進コイルを浮上コイルとは別に配置しなければならないこと、推進コイルと案内コイルを兼用しているため、高電圧のヌルフラックスケーブルが必要であることなどの問題があった。   From the historical background, as shown in FIG. 6, the opposing levitation method on the Miyazaki test line requires only a simple rectangular coil 101 to be placed on the floor surface for the levitation of the magnetic levitation vehicle 102 having the superconducting magnet 103. And the upper and lower magnetic springs were soft and there was no problem as a ride comfort, but because the running resistance is large, the propulsion coil must be arranged separately from the levitation coil, because the propulsion coil and the guide coil are combined, There were problems such as the need for a high voltage null flux cable.

これらの問題点を解決するために、図７に示すように、山梨実験線では側壁浮上方式を採用した。これにより、走行抵抗を低減でき、かつ、ヌルフラックスケーブルも低電圧用のケーブルで済むようになったが、一方で、上下磁気バネが硬くなり、超電導磁石２０３を有する磁気浮上式車両２０２に対する地上コイル２０１の設置精度（ｍｍレベルの間隔）が厳しくなり、かつ、地上コイル２０１を側壁に取り付けるようにしたためにコイルの取り付けが難しくなるなど、建設コストを増加させる要因が増える結果となった（下記特許文献１〜３参照）。   In order to solve these problems, as shown in FIG. 7, the side wall floating system was adopted in the Yamanashi test line. As a result, the running resistance can be reduced, and the null flux cable can be a low voltage cable. On the other hand, the upper and lower magnetic springs become harder than the magnetic levitation vehicle 202 having the superconducting magnet 203. The installation accuracy of the coil 201 (mm level spacing) became stricter, and the ground coil 201 was attached to the side wall, making it difficult to attach the coil. Patent Literatures 1 to 3).

現在特許出願人は、推進浮上案内（ＰＬＧ）の機能を１つのコイルで兼用させるＰＬＧコイルを開発中である。この方式は地上に設置するコイルが一種類で済むので、山梨実験線の側壁浮上方式よりもさらにコストダウンできる見込みがあるものの、浮上原理は側壁浮上方式と同じであり、コスト設置精度が厳しいことや、コイルを側壁に取り付けなければならないなど、側壁浮上システムの欠点はそのままであり、さらには、推進浮上案内の機能を兼用しているため、高電圧のヌルフラックスケーブルを設置しなければならなくなることや、今の山梨実験線で採用している三重き電方式を適用できなくなるなど、新たなコスト増加の要因も発生している。   Currently, the patent applicant is developing a PLG coil that combines the functions of propulsion levitation guidance (PLG) with a single coil. This method requires only one type of coil to be installed on the ground, so it is expected that the cost can be reduced further than the side wall floating method of the Yamanashi test line, but the principle of floating is the same as the side wall floating method, and the cost installation accuracy is severe. The drawbacks of the side wall floating system remain the same, for example, the coil must be attached to the side wall. Furthermore, since it also functions as a propulsion levitating guide, a high voltage null flux cable must be installed. In addition, there are new factors that increase costs, such as the inability to apply the triple feed system used in the current Yamanashi test line.

更に、電磁誘導の原理を利用した、路面に８の字形状の地上コイルを敷設した磁気誘導浮上・案内併用機構が提案されている（下記特許文献４参照）。
米国特許第４，９１３，０５９号公報 特公平７−５５００３号公報 特公平６−６９２４６号公報 特許第３８３６４７５号公報 Furthermore, a magnetic induction levitation / guide combined mechanism using an electromagnetic induction principle in which an 8-shaped ground coil is laid on the road surface has been proposed (see Patent Document 4 below).
U.S. Pat. No. 4,913,059 Japanese Patent Publication No. 7-55003 Japanese Examined Patent Publication No. 6-69246 Japanese Patent No. 3836475

しかしながら、上記した特許文献１に記載された従来の電磁誘導による磁気浮上システムにおいても、浮上力も電磁誘導によるものであり、構成がシンプルな低コスト磁気浮上システムを構築するには難があった。   However, even in the conventional magnetic levitation system using electromagnetic induction described in Patent Document 1, the levitation force is also due to electromagnetic induction, and it is difficult to construct a low-cost magnetic levitation system with a simple configuration.

すなわち、従来の対向方式の誘導反発浮上方式では、超電導磁石を強力にしても不必要に浮上高さが高くなってしまうだけであり、地上コイルの導体量削減には結びつかない。   That is, in the conventional opposing repulsive levitation system, even if the superconducting magnet is strengthened, only the flying height is unnecessarily increased, and the amount of conductor of the ground coil is not reduced.

本発明では、地上の変電所より流す電流を任意に制御することにより、車両の浮上高さを自由に設定でき、地上コイルの導体量を不必要に増大させなくてもよいシステムを構築する。   In the present invention, by arbitrarily controlling the current flowing from the substation on the ground, the flying height of the vehicle can be freely set, and a system that does not need to unnecessarily increase the conductor amount of the ground coil is constructed.

上記したように、本発明は、ヌルフラックスケーブル不要で、かつ、浮上力は磁気バネが柔らかいためコイル設置精度は厳しくなく、しかも、車上の超電導コイルの配置が容易な、推進浮上案内兼用路盤設置型超電導磁気浮上システムを提供することを目的とする。   As described above, the present invention does not require a null flux cable, and the magnetic force of the levitation force is soft, so that the coil installation accuracy is not strict, and the superconducting coil on the vehicle is easy to dispose, and the levitation guide combined use roadbed is easy. An object is to provide a stationary superconducting magnetic levitation system.

本発明は、上記目的を達成するために、
〔１〕推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、路盤に配置される８字形状のコイル群を有する地上コイルと、この地上コイルに接続される配電線と、この配電線に接続される３相交流電源を有する地上の変電所とを具備することを特徴とする。 In order to achieve the above object, the present invention provides
[1] In a superconducting magnetic levitation system that uses a propulsion levitation guide and a roadbed, a ground coil having an 8-shaped coil group disposed on the roadbed, a distribution line connected to the ground coil, and a distribution line connected to the distribution line And a ground substation having a three-phase AC power source.

〔２〕上記〔１〕記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記地上コイルには、前記地上の変電所から前記配電線を介して推進磁場ＭP を生じる推進電流ＩP と浮上磁場ＭL を生じる浮上電流ＩL を重畳した合成磁場ＭA を生じる合成電流ＩA を前記配電線から供給することを特徴とする。 [2] In [1] Promotion levitation guide serves roadbed stationary superconducting magnetic levitation system according to the ground coils are promoted current I P from the ground substation produce propulsion magnetic field M P via the distribution line and supplying the resultant current I a to produce the resultant magnetic field M a obtained by superimposing levitation current I L caused a floating magnetic field M L from the distribution line.

〔３〕上記〔１〕記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記推進電流ＩP に対して位相が９０度ずれた３相交流の浮上電流ＩL を地上の変電所から強制的に供給することにより、浮上力を得ることを特徴とする。 [3] In the superconducting magnetic levitation system with a propulsion levitation guide and roadbed installed as described in [1] above, a three-phase AC levitation current I L that is 90 degrees out of phase with the propulsion current I P is supplied from a substation on the ground. It is characterized by obtaining levitation force by forcibly supplying.

〔４〕上記〔１〕記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記配電線は３相３線もしくは３相４線結線からなることを特徴とする。   [4] In the propulsion levitation guide and roadbed installation type superconducting magnetic levitation system according to [1], the distribution line is composed of three-phase three-wire or three-phase four-wire connection.

本発明によれば、ヌルフラックス線は不要であり、地上コイルの設置が容易であり、しかも磁気バネの低減を図ることができる。   According to the present invention, the null flux wire is unnecessary, the ground coil can be easily installed, and the magnetic spring can be reduced.

本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムは、路盤に配置される８字形状のコイル群を有する地上コイルと、この地上コイルに接続される配電線と、この配電線に接続される３相交流電源を有する地上の変電所とを具備する。   The propulsion levitation guide combined use roadbed installation type superconducting magnetic levitation system of the present invention includes a ground coil having an 8-shaped coil group arranged on the roadbed, a distribution line connected to the ground coil, and a connection to the distribution line. And a ground substation having a three-phase AC power source.

以下、本発明の実施の形態について詳細に説明する。
〔推進の原理〕
まず、推進の原理について説明する。 Hereinafter, embodiments of the present invention will be described in detail.
[Promotion principle]
First, the principle of propulsion will be described.

図１は本発明の実施例を示す推進浮上案内兼用路盤設置型超電導磁気浮上システムの地上コイルの地上側を上から見た結線図（Ｕ相単線分）、図２はその地上側の設備上を走行する超電導磁気浮上車両の模式図（側面から見た図）である。   FIG. 1 is a connection diagram (a U-phase single line) of a ground coil of a superconducting magnetic levitation system with a propulsion levitation guide and roadbed according to an embodiment of the present invention as viewed from above, and FIG. It is a schematic diagram (figure seen from the side) of the superconducting magnetic levitation vehicle which travels.

図１において、１は３相交流電源を供給する地上の変電所、２は路盤面に配置される２個の並列接続される８字形状のコイル２Ａ群を配置した地上コイル、３は地上の変電所１と地上コイル２とを接続する配電線である。   In FIG. 1, 1 is a ground substation for supplying three-phase AC power, 2 is a ground coil in which two parallel-connected 8-character coils 2A are arranged on the road surface, and 3 is a ground It is a distribution line that connects the substation 1 and the ground coil 2.

そこで、図２に示すように、８字形状のコイル２Ａ群を有する地上コイル２上に超電導磁気浮上車両４が浮上走行する。この超電導磁気浮上車両４の底部には超電導磁石５が配置されており、地上コイル２に流れる交流電流と超電導磁石５は作用して、超電導磁石５を利用したリニア同期モータとして推進力を発生させることができる。すなわち、地上コイル２には、後述する図４に示すように、推進磁場Ｍp を生じる推進電流Ｉp が供給される（原理的には、従来のＰＬＧコイルと同じである）。
〔浮上の原理〕
図３は本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムの浮上力を説明する模式図（側面より見た図）、図４は地上コイル２に印加される浮上磁場、推進磁場及びそれらが重畳される合成磁場を生じる電流の位相を示す図である。 Therefore, as shown in FIG. 2, the superconducting magnetic levitation vehicle 4 floats on the ground coil 2 having the 8-shaped coil 2A group. A superconducting magnet 5 is disposed at the bottom of the superconducting magnetic levitation vehicle 4, and the alternating current flowing through the ground coil 2 and the superconducting magnet 5 act to generate a propulsive force as a linear synchronous motor using the superconducting magnet 5. be able to. That is, as shown in FIG. 4 to be described later, the ground coil 2 is supplied with a propulsion current I p that generates a propulsion magnetic field M p (in principle, the same as a conventional PLG coil).
[Floating Principle]
FIG. 3 is a schematic diagram (viewed from the side) for explaining the levitation force of the superconducting magnetic levitation system with propulsion levitation guide and roadbed installed according to the present invention. FIG. 4 shows the levitation magnetic field applied to the ground coil 2, the propulsion magnetic field, and those. It is a figure which shows the phase of the electric current which produces | generates the synthetic magnetic field on which is superimposed.

この実施例では、軌道面に配置される２個の並列接続される８字形状のコイル２Ａ群を配置した地上コイル２に対して、地上の変電所１は、推進磁場Ｍp を生じる推進電流Ｉp と浮上磁場ＭL を生じる浮上電流ＩL を重畳した合成磁場ＭA を生じる合成電流ＩA を流すことになる。つまり推進電流Ｉp に対して、位相が９０度ずれた３相交流浮上電流ＩL を地上の変電所１から強制的に流すことにより、浮上力を得る。なお、地上コイル２の結線としては、図１と同様である。
〔案内の原理〕
図５は本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムの案内力を説明する模式図（正面より見た図）である。 In this embodiment, the substation 1 on the ground generates a propulsion current that generates a propulsion magnetic field M p with respect to the ground coil 2 in which two parallel-connected 8-character coils 2A arranged on the track surface are arranged. thereby flowing the combined current I a to produce the resultant magnetic field M a obtained by superimposing levitation current I L caused a I p the floating magnetic field M L. That is, the levitation force is obtained by forcibly flowing the three-phase AC levitation current I L whose phase is shifted by 90 degrees with respect to the propulsion current I p from the substation 1 on the ground. The ground coil 2 is connected in the same manner as in FIG.
[Guiding Principle]
FIG. 5 is a schematic diagram (viewed from the front) for explaining the guide force of the superconducting magnetic levitation system with propulsion levitation guide and roadbed installed according to the present invention.

この実施例では、軌道面に配置される２個の並列接続される８字形状のコイル２Ａ群を配置した地上コイル２に対して、超電導磁気浮上車両４の底面に配置される超電導磁石５が対向する。ここでは、案内力の発生は、８字形状のコイル２Ａの電磁誘導の原理を用いる。すなわち、側壁浮上方式における浮上力発生原理と同じ原理で案内力を発生する。従って、案内力に関しては、超電導磁気浮上車両４の左右変位に対応して自動的にその変位を元に戻すように制御される。   In this embodiment, the superconducting magnet 5 disposed on the bottom surface of the superconducting magnetically levitated vehicle 4 is provided with respect to the ground coil 2 in which two parallel-connected 8-shaped coils 2A are disposed on the track surface. opposite. Here, the generation of the guide force uses the principle of electromagnetic induction of the 8-shaped coil 2A. That is, the guide force is generated based on the same principle as the levitation force generation principle in the side wall levitation method. Accordingly, the guide force is controlled so as to automatically return the displacement in accordance with the lateral displacement of the superconducting magnetic levitation vehicle 4.

このように構成したので、ヌルフラックス線は不要であり、地上コイルの設置が容易であり、磁気バネの低減を図ることができる。   Since it comprised in this way, a null flux wire is unnecessary, installation of a ground coil is easy and reduction of a magnetic spring can be aimed at.

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いて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, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムは、ヌルフラックス線は不要であり、地上コイルの設置が容易であり、しかも磁気バネを低減できる磁気浮上式鉄道推進浮上案内兼用路盤設置型の超電導磁気浮上システムとして利用可能である。   The superconducting magnetic levitation system with propulsion levitation guide combined with the present invention is a magnetic levitation type railway propulsion levitation guide combined with subbase installation that does not require a null flux wire, can easily install ground coils, and can reduce magnetic springs. It can be used as a superconducting magnetic levitation system.

本発明の実施例を示す推進浮上案内兼用路盤設置型超電導磁気浮上システムの地上コイルの地上側を上から見た結線図（Ｕ相単線分）である。It is the connection diagram (U-phase single line segment) which looked at the ground side of the ground coil of the propulsion levitation guide and roadbed installation type superconducting magnetic levitation system which shows the Example of this invention from the top. 本発明の実施例を示す推進浮上案内兼用路盤設置型超電導磁気浮上システムの地上側の設備上を走行する超電導磁気浮上車両の模式図（側面から見た図）である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram (viewed from the side) of a superconducting magnetic levitation vehicle that runs on equipment on the ground side of a superconducting magnetic levitation system with propulsion levitation guide and roadbed according to an embodiment of the present invention. 本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムの浮上力を説明する模式図（側面より見た図）である。It is a schematic diagram (figure seen from the side) explaining the levitation force of the propulsion levitation guide and roadbed installation type superconducting magnetic levitation system of the present invention. 本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムの地上コイルに印加される浮上磁場、推進磁場及びそれらが重畳される合成磁場を生じる電流の位相を示す図である。It is a figure which shows the phase of the electric current which produces the levitation | floating magnetic field applied to the ground coil of the superconducting magnetic levitation system combined with the propulsion levitation guide of this invention, a propulsion magnetic field, and the synthetic magnetic field on which they are superimposed. 本発明の推進浮上案内兼用路盤設置型超電導磁気浮上システムの案内力を説明する模式図（正面より見た図）である。It is the schematic diagram (view seen from the front) explaining the guide force of the propulsion levitation guide and roadbed installation type superconducting magnetic levitation system of the present invention. 従来の第１の超電導磁気浮上システムの模式図である。It is a schematic diagram of the conventional 1st superconducting magnetic levitation system. 従来の第２の超電導磁気浮上システムの模式図である。It is a schematic diagram of the conventional 2nd superconducting magnetic levitation system.

符号の説明Explanation of symbols

１ ３相交流電源を供給する地上の変電所
２ 地上コイル
２Ａ ８字形状のコイル
３ 地上の変電所と地上コイルとを接続する配電線
４ 超電導磁気浮上車両
５ 超電導磁石
ＩA 合成電流
ＩL 浮上電流
Ｉp 推進電流
ＭA 合成磁場
ＭL 浮上磁場
Ｍp 推進磁場 1 Ground substation supplying 3-phase AC power 2 Ground coil 2A 8-shaped coil 3 Distribution line connecting ground substation and ground coil 4 Superconducting magnetic levitation vehicle 5 Superconducting magnet I A Composite current I L Levitation Current Ip propulsion current
M A synthetic magnetic field M L emerged magnetic field
Mp propulsion magnetic field

Claims (4)

（ａ）路盤に配置される８字形状のコイル群を有する地上コイルと、
（ｂ）該地上コイルに接続される配電線と、
（ｃ）該配電線に接続される３相交流電源を有する地上の変電所とを具備することを特徴とする推進浮上案内兼用路盤設置型超電導磁気浮上システム。 (A) a ground coil having an eight-shaped coil group disposed on the roadbed;
(B) a distribution line connected to the ground coil;
(C) A superconducting magnetic levitation system with a propulsion levitation guide and roadbed installed, comprising a ground substation having a three-phase AC power source connected to the distribution line. 請求項１記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記地上コイルには、前記地上の変電所から前記配電線を介して推進磁場ＭP を生じる推進電流ＩP と浮上磁場ＭL を生じる浮上電流ＩL を重畳した合成磁場ＭA を生じる合成電流ＩA を前記配電線から供給することを特徴とする推進浮上案内兼用路盤設置型超電導磁気浮上システム。 In claim 1 Promotion levitation guide serves roadbed stationary superconducting magnetic levitation system according to the ground coils are promoted current I P with floating magnetic field M from the ground substation produce propulsion magnetic field M P via the distribution line Promotion levitation guide serves roadbed stationary superconducting magnetic levitation system the combined current I a to produce the resultant magnetic field M a obtained by superimposing levitation current I L caused the L and supplying from the distribution line. 請求項１記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記推進電流ＩP に対して位相が９０度ずれた３相交流の浮上電流ＩL を地上の変電所から強制的に供給することにより、浮上力を得ることを特徴とする推進浮上案内兼用路盤設置型超電導磁気浮上システム。 3. A superconducting magnetic levitation system with a propulsion levitation guide and roadbed installed according to claim 1, forcibly supplying a three-phase alternating levitation current I L whose phase is shifted by 90 degrees with respect to the propulsion current I P from a substation on the ground. A superconducting magnetic levitation system with a propulsion levitation guide and roadbed installed, characterized by obtaining levitation force. 請求項１記載の推進浮上案内兼用路盤設置型超電導磁気浮上システムにおいて、前記配電線は３相３線もしくは３相４線結線からなることを特徴とする推進浮上案内兼用路盤設置型超電導磁気浮上システム。   The superconducting magnetic levitation system combined with a propulsion levitation guide according to claim 1, wherein the distribution line comprises a three-phase three-wire or a three-phase four-wire connection. .
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