JPH01126158A - Rotor of superconductive rotary electric machine - Google Patents
Rotor of superconductive rotary electric machineInfo
- Publication number
- JPH01126158A JPH01126158A JP62281605A JP28160587A JPH01126158A JP H01126158 A JPH01126158 A JP H01126158A JP 62281605 A JP62281605 A JP 62281605A JP 28160587 A JP28160587 A JP 28160587A JP H01126158 A JPH01126158 A JP H01126158A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- field
- conductive bars
- conductive
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Superconductive Dynamoelectric Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野」
この発明は超電導回転電機の回転子、特にダンパに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotor of a superconducting rotating electric machine, and particularly to a damper.
第４図は例えば持回５７−１０１５５９号公報に示され
た従来の回転子を示す斜視図であり、図において（ｌ
ａ）は回転軸方向く延びる複数の導電バー、（ｌｂ）は
導電バー（ｌａ）Ｏ端部を短絡するｊｒＬＭｒ環、（ｌ
ｃ）は導電バー（ｌａ）を収納する溝を有する金属の
支持円筒、（ｌｄ）はｍｂ環（１ｂ）を遠心力に抗して
Ｍ持する呆持環であり、これら（ｌａ）〜（ｌａ）から
ダンパ（１）が構成される。第５図は第４図のＶ−Ｖｉ
Ｋａう断面図であり、図においてＱ）は超電導界磁コイ
ル。FIG. 4 is a perspective view showing a conventional rotor disclosed in, for example, Jikai No. 57-101559, and in the figure (l
a) is a plurality of conductive bars extending in the direction of the rotation axis, (lb) is a jrLMr ring that short-circuits the O end of the conductive bar (la), (l
c) is a metal support cylinder having a groove for storing the conductive bar (la), (ld) is a holding ring that holds the mb ring (1b) M against centrifugal force, and these (la) to ( A damper (1) is constructed from the damper (1). Figure 5 shows the V-Vi of Figure 4.
This is a cross-sectional view of Ka, in which Q) is a superconducting field coil.
（３）は超電導界磁コイ／Ｉ／ （２）を保持するコイ
ル取付軸である。(3) is a coil mounting shaft that holds the superconducting field coil /I/ (2).
次に動作について説明する。ダンパ（１）は導電バー
（ｌａ）と短絡環（ｌｂ）とでいわゆるかご形の電気回
路を形成する。固定子コイ／Ｉ／（図示せず）からの変
動磁界に応じてこの電気回路にダンパ電流が誘導される
。Next, the operation will be explained. Damper (1) is a conductive bar
(la) and the short-circuit ring (lb) form a so-called cage-shaped electric circuit. A damper current is induced in this electrical circuit in response to a varying magnetic field from a stator coil /I/ (not shown).
これにより、ダンパ（１）紘次０２つのＩＩ能を果す。As a result, the damper (1) performs two functions.
（ａ） Ｖ−ルド・・・固定子側から回転子側に侵入す
る変動磁界をシーμドして、超電導界磁コイ／Ｉ／ （
２）の誘導電流の抑制及び超電導線に生ずる交流損失の
低減を行い、変動磁界により超電導状態が維持できなく
なることを未然に防ぐ。(a) V-Lead...Seed the fluctuating magnetic field entering from the stator side to the rotor side, and superconducting field coil /I/ (
2) The induced current is suppressed and the AC loss occurring in the superconducting wire is reduced to prevent the superconducting state from becoming impossible to maintain due to fluctuating magnetic fields.
６）ダンピング・・・発電機負荷急変等を原因として発
電機出力が例えば１〜５Ｈｚで変動する、いわゆる電力
動揺に対するダンピングを与える。6) Damping: Provides damping against so-called power fluctuations in which the generator output fluctuates, for example, at 1 to 5 Hz due to sudden changes in generator load.
この２つの機能はダンパ電気回路の抵抗と強い相関があ
る。シールドはダンパ（１）に流れる誘導電流が大きい
ほど効果が大であり、それにはダンパ電気回路の抵抗を
低減することが必要である。−方、ダンピングはダンパ
（１） Ｋ発生するジュール熱がもたらす作用であり、
ダンパ電気回路の抵抗をある程度大きくする必要がある
。These two functions are strongly correlated with the resistance of the damper electrical circuit. The shield becomes more effective as the induced current flowing through the damper (1) increases, and for this purpose it is necessary to reduce the resistance of the damper electric circuit. - On the other hand, damping is the effect caused by Joule heat generated by damper (1) K.
It is necessary to increase the resistance of the damper electric circuit to some extent.
〔発明が解決しようとする問題点Ｊ
従来のダンパ（１）は上述したように構成されているた
め、導電パー（ｌａ）の抵抗を下げるとシールドが良く
なる一方ダンピングが悪くなる。逆に導電パー（１ａ）
の抵抗を上げるとダンピングが良くなる一方シー〜ドが
悪くなるという問題があった。[Problem to be Solved by the Invention J] Since the conventional damper (1) is configured as described above, lowering the resistance of the conductive pad (la) improves the shielding but deteriorates the damping. On the contrary, conductive par (1a)
There was a problem in that increasing the resistance improved the damping but worsened the seeding.
この発明は上記のような問題点を解決するためになされ
たもので、シールド及びダンピングの両ｌＩＭ能を満足
するダンパを有する超電導回転電機の回転子を得ること
を目的とする。The present invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain a rotor for a superconducting rotating electric machine having a damper that satisfies both shielding and damping functions.
ｃ問題点を解決するための手段Ｊ
この発明に係るダンパは界磁磁極方向にある導電パーの
断面積を極間方向にある導電パーに比し小さくしたもの
である。c Means for Solving the Problem J In the damper according to the present invention, the cross-sectional area of the conductive bar located in the direction of the field magnetic poles is made smaller than that of the conductive bar located in the direction between the poles.
〔作用Ｊ
この発明にかけるダンパは、界磁の磁極方向からの変動
磁界に対してはダンパ回路抵抗が小さくシールドが良好
であり、極間方向からの変動磁界に対してはダンパ回路
抵抗が大きくダンピングが良好となる。[Function J] The damper according to the present invention has a small damper circuit resistance and good shielding against a changing magnetic field from the direction of the magnetic poles of the field, and a large damper circuit resistance against a changing magnetic field from the direction between the poles. Good damping.
〔発明の実施例］
以下、この発明の一実施例企図について説明する。第１
図は回転子の横断面図であｌ） 、（ｌｌａ）は磁、ｔ
！ｉ側に設けた断面積の小さい導電パー、（Ｌｌｂ）は
極間側に設けた断面積の大きい導電パーである。[Embodiment of the Invention] Hereinafter, one embodiment of the present invention will be described. 1st
The figure is a cross-sectional view of the rotor.
! The conductive pad (Llb) with a small cross-sectional area provided on the i side is a conductive pad with a large cross-sectional area provided on the inter-electrode side.
このように構成されたダンパの作用を第２図で説明する
。界磁の磁極方向に加わる変動磁界（４）によってダン
パ（１）Ｋ誘導される電流（５）は極間側に設けた抵抗
の小さい導電パーｍｂ）を通るため電流値が増大しシー
ルド効果が大きい。従って超電導界磁コイル（２）に誘
導される電流が小さくなり、電力動揺時の界磁電流上昇
値が抑制され超電導状態が維持される。The operation of the damper constructed in this way will be explained with reference to FIG. The current (5) induced in the damper (1) K by the varying magnetic field (4) applied in the direction of the magnetic poles of the field passes through the conductive part (mb) with low resistance provided on the side between the poles, so the current value increases and the shielding effect is increased. big. Therefore, the current induced in the superconducting field coil (2) becomes small, the increase in field current during power fluctuations is suppressed, and the superconducting state is maintained.
一方、極間方向に加わる変動磁界（６）によってダンパ
（１） Ｋ誘導される電流（Ｄは、磁極側に配設された
抵抗の大きい導電パー（ｌｌａ）を通るため、ジュール
熱が増大する。電力動揺の、場合変動磁界が極間方向を
向いたときにジュール熱を発生すると最も動揺の減衰が
早くなる。即ち、電力動揺に対するダンピング効果は高
い。On the other hand, the current (D) induced in the damper (1) by the fluctuating magnetic field (6) applied in the direction between the poles passes through the conductive pin (lla) with large resistance arranged on the magnetic pole side, so Joule heat increases. .In the case of power fluctuation, if Joule heat is generated when the fluctuating magnetic field is directed in the direction between the poles, the fluctuation will attenuate the fastest.That is, the damping effect on the power fluctuation will be high.
これを具体的に示すと第３図のようになる。第３図は電
力動揺時の出力及び界磁電流の変化を従来のダンパ（実
線で示す）とこの発明によるダンパ（破線で示す）とで
比較したものである。この発１！Ｊ４によるダンパが界
磁電流の最大値低減、出力変動の減衰において優れてい
ることが分る。A concrete example of this is shown in FIG. FIG. 3 compares changes in output and field current during power fluctuations between a conventional damper (indicated by a solid line) and a damper according to the present invention (indicated by a broken line). This is the first one! It can be seen that the J4 damper is excellent in reducing the maximum value of field current and attenuating output fluctuations.
〔発明の効果Ｊ
以上説明した通り、この発明によれば界磁磁極側の導電
パーの断面積＆を極間側に比し小さくしてダンパを構成
したので、シールド及びダンピングの両＠能が高く電気
特性の優れた超電導回転電機の回転子を得ることができ
る。[Effects of the Invention J As explained above, according to the present invention, since the damper is constructed by making the cross-sectional area & of the conductive pad on the field magnetic pole side smaller than that on the side between the poles, both shielding and damping functions are achieved. A rotor for a superconducting rotating electrical machine with high and excellent electrical properties can be obtained.
第１図はこの発明の一実施例による超電導回転電機の回
転子の横断面図、第２図は第１図に示すダンパの作用を
表す説明図、第３図は第１−に示すダンパの効果を示す
特性図、９４図は従来の超電導回転電機の回転子を示す
斜視図、第５図は第４図のＶ −Ｖ線に沿う断面図であ
る。
図において、（１）はダンパ、（ｌｌａ）は断面積の小
さい導電パー、（ｌｌｂ）は断面積の大きい導電パー、
（ｌｂ）は短絡環、（１ｃ）は支持円筒、（２）は超電
導界磁コイル、（３）はコイル取付軸である。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a cross-sectional view of a rotor of a superconducting rotating electrical machine according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the action of the damper shown in FIG. 1, and FIG. A characteristic diagram showing the effect, FIG. 94 is a perspective view showing a rotor of a conventional superconducting rotating electric machine, and FIG. 5 is a sectional view taken along the line V-V in FIG. 4. In the figure, (1) is a damper, (lla) is a conductive part with a small cross-sectional area, (llb) is a conductive part with a large cross-sectional area,
(lb) is a short circuit ring, (1c) is a support cylinder, (2) is a superconducting field coil, and (3) is a coil mounting shaft. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
電導界磁コイルを囲繞し回転子最外周に配置され軸方向
に延びる複数の導電バーとこれら導電バーの両端部を短
絡する短絡環と上記導電バー及び上記短絡環を取り付け
る支持円筒とで構成されたダンパを有する超電導回転電
機の回転子において、上記導電バーの界磁磁極側の断面
積を上記導電バーの極間側に比し小さくしたことを特徴
とする超電導回転電機の回転子。A superconducting field coil mounted on a coil mounting shaft, a plurality of conductive bars surrounding the superconducting field coil and extending in the axial direction and arranged on the outermost periphery of the rotor, a short-circuiting ring short-circuiting both ends of these conductive bars, and the above. In a rotor of a superconducting rotating electric machine having a damper composed of a conductive bar and a support cylinder to which the short circuit ring is attached, the cross-sectional area of the conductive bar on the field magnetic pole side is smaller than that on the inter-pole side of the conductive bar. A rotor for a superconducting rotating electric machine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62281605A JPH01126158A (en) | 1987-11-06 | 1987-11-06 | Rotor of superconductive rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62281605A JPH01126158A (en) | 1987-11-06 | 1987-11-06 | Rotor of superconductive rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126158A true JPH01126158A (en) | 1989-05-18 |
Family
ID=17641470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62281605A Pending JPH01126158A (en) | 1987-11-06 | 1987-11-06 | Rotor of superconductive rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126158A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026060A2 (en) | 1999-02-03 | 2000-08-09 | Toyota Jidosha Kabushiki Kaisha | Braking system |
| DE102008009972A1 (en) * | 2008-02-20 | 2009-08-27 | Siemens Aktiengesellschaft | Shielding and method for damping eddy currents in supra or high-temperature superconducting devices and their use |
-
1987
- 1987-11-06 JP JP62281605A patent/JPH01126158A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026060A2 (en) | 1999-02-03 | 2000-08-09 | Toyota Jidosha Kabushiki Kaisha | Braking system |
| DE102008009972A1 (en) * | 2008-02-20 | 2009-08-27 | Siemens Aktiengesellschaft | Shielding and method for damping eddy currents in supra or high-temperature superconducting devices and their use |
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