序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Superconductive coil assembly particularly for a current limiter, and a current limiter including such a coil assembly US145634 1993-11-04 US5387890A 1995-02-07 Pascal Estop; Thierry Verhaege; Van Doan Pham; Alain Lacaze; Christian Cottevieille
The present invention relates to a superconductive coil assembly which may be used particularly for a current limiter, the coil assembly comprising a plurality of coaxial cylindrical coils electrically connected in series, each coil comprising two windings of superconductive material electrically connected in parallel, arranged coaxially and wound in opposite directions, wherein in each coil, the windings are separated by a material which has a surface resistance in the radial direction lying in the range 10.sup.-5 .OMEGA..m.sup.2 to 10.sup.-2 .OMEGA..m.sup.2 at the temperature of the cryostat, and in which the strands which constitute the superconductive wires may themselves be covered with a layer of the same material.
142 Current limiting device for electromagnetic coil employing gap containing superconductive shield US809908 1991-12-20 US5355275A 1994-10-11 Philip J. Goodier; Peter J. Davidson
A variable impedance device comprises a coil (10) and an associated magnetic circuit (16) having a gap receiving a plate (20) of superconducting material which acts as a shield or barrier so that, while the plate (20) is in its superconducting state, magnetic flux is caused to traverse the gap via pathways substantially greater in length than the width of the gap. If a large current is passed through the coil (10), the plate (20) becomes resistive thereby presenting a substantially increased impedance to the current. The device may be used in current limiting applications, or other applications where a variable impedance is required.
143 Superconductor current-limiting apparatus US760315 1991-09-16 US5250508A 1993-10-05 Van Doan Pham
The invention relates to superconductor current-limiting apparatus of the type having a magnetic core around which firstly a superconductor component is disposed, followed by an electric coil made of non-superconducting material, the apparatus being designed to be inserted in a line to be protected (L), the assembly constituted by the magnetic core (6A, 6B), the superconductor component (3A, 3B) and the electric coil (2A, 2B) forming a current-limiting unit which is connected in the line to be protected in series with a circuit-breaker. The apparatus has two current-limiting units contained in a single tank (13) filled with a dielectric cooling fluid (17), each superconductor component being disposed in an insulating cryostat (4A, 4B) filled with a cryogenic fluid, each magnetic core being part of a closed magnetic circuit, the tank having electrical bushings (14, 15, 16) for connecting the electric coils to the line to be protected via circuit-breakers (30A, 30B), the limiting units being assembled in parallel.
144 Device for detecting superconductor quenching and application to a superconducting current limiter US502730 1990-04-02 US5063472A 1991-11-05 Pham van Doan; Jean-Pierre Dupraz; Alain Fevrier
Device for detecting the quenching of part a superconducting element comprising two identical superconducting conductors electrically connected in parallel is provided with means (104, 105, 109, 110) of detecting a difference in intensity or phase between the currents flowing in the conductors. An application to a superconducting current limiter is described.
145 Current limiting device for an electrical network US600372 1975-07-30 US4015168A 1977-03-29 Ernst Massar
A current limiting device for a network which comprises a magnetically shielded superconductor coupled to the network with the shielding means having controllable magnetizing coils by which they can be transversely magnetized up to saturation.
146 Current limiting device for limiting short circuit current in energy transfer systems US3629690D 1970-06-18 US3629690A 1971-12-21 MASSAR ERNST
An electrically normal conducting impedance winding is connected in series with one of two inductively interlinked windings of a current limiting device and has an inductivity which is such that approximately the same electric voltage drop occurs at the impedance winding as does at the other of the windings when the current limiting device is operated at a current which is smaller than or equal to the limiting current. The series connection of the impedance winding and the one of the windings of the current limiting device is connected in parallel with the other of the windings of the current limiting device. The two windings, one of which is connected in series with the impedance winding and the other of which is connected in parallel with the series connection, have mutually opposed and substantially equal ampere turns. The one of the windings at least partially comprises superconducting material and has a critical field intensity which is exceeded when the limit value of the current is exceeded and the winding becomes electrically normal conducting.
147 ハイブリッド超電導磁気デバイス JP2018528108 2016-08-18 JP2018525850A 2018-09-06 ウルフス、シュキ; イェシュロン、ヨセフ; フリードマン、アレクサンダー; ニクルシン、ヤコヴ; ペレル、エリエゼル
電気グリッドを安定化させるためのハイブリッド超電導デバイスは、(a)AC巻線を少なくとも部分的に担持する磁気コア配置であって、該AC巻線は、故障の際に電流が制限されるためにAC回路に接続可能である、磁気コア配置と、(b)電磁エネルギーを貯蔵するように構成された少なくとも1つの超電導コイルであって、該超電導コイルは、コア配置と磁気的に結合され、使用中に磁気コア配置を飽和させる、少なくとも1つの超電導コイルと、を備える。ハイブリッド超電導デバイスは、以下のモード:超電導コイルを少なくとも部分的に充電するモード、超電導コイルがループバックされるときの待機モード、および超電導コイルを回路内に少なくとも部分的に放電するモード、に対応して電流パターンを切り替えるために事前プログラムされたスイッチユニットをさらに備える。任意選択的に、ハイブリッド超電導デバイスは、該磁束内に位置付けられた少なくとも1つの通路を備える。通路は、該磁束によって磁気的に分離可能な構成要素を備える材料流を導く。
148 Superconducting fault current limiter JP2011531628 2009-10-14 JP2012505634A 2012-03-01 インパラート、サルバトーレ; モランディ、アントニオ
本発明は、保護すべき回路に接続された能動デバイス(3a、3b、3c、3d)からなる整流ブリッジ(2)を含む超電導限流器(1)に関するものであって、前記整流ブリッジ(2)は、4つのノード(4、5、6、7)によって接続された4つの枝路を含み、第1のノード(4)と第1のノード(4)に隣接しない第2のノード(5)とが前記保護すべき回路(12、13)に接続されている。 超電導限流器は、前記整流ブリッジ(2)の第3のノード(6)から第4のノード(7)に接続された中央枝路(8)を含むことを特徴とする。 前記整流ブリッジ(2)は、前記中央枝路(8)を流れる電流のリップルの振幅を減らすための誘導性構成機器と、非線形超電導抵抗構成機器とを含む少なくとも1つの回路要素を含む。 前記非線形超電導抵抗構成機器は、前記中央枝路(8)を流れる電流が与えられた閾値を超えずに、非線形超電導抵抗構成機器を含む前記少なくとも1つの回路要素が超電導状態にある第1の動作状態と、前記中央枝路(8)を流れる電流が与えられた閾値を超えて、非線形超電導抵抗構成機器を含む前記少なくとも1つの回路部が非超電導状態にあって、抵抗としての動作をする第2の動作状態とを有する。
149 High voltage fault current limiter with immersion-type phase coil JP2010535176 2008-11-27 JP2011505112A 2011-02-17 ダーマン、フランシス、アンソニー
磁性体材料で形成され、少なくとも第1のリムと第2のリムと、を含む強磁性体回路と、強磁性体材料を磁気飽和させるために、リムを取り囲む飽和機構と、第2のリムの周りに巻回された、位相コイルと、位相コイルを取り囲む、誘電体流体と、飽和機構を取り囲む、ガス雰囲気と、を含む、故障電流制限器が提供される。
150 Superconducting wire rod, persistent current switch, and superconducting magnet JP2009083991 2009-03-31 JP2010238840A 2010-10-21 TAKAHASHI MASAYA; OKADA MICHIYA
<P>PROBLEM TO BE SOLVED: To provide a superconducting wire usable in a low magnetic field region of not more than 2T and at a temperature of 4.2 K or lower, to provide a connection structure and a connection method thereof, and to provide highly reliable device using the superconducting wire. <P>SOLUTION: This superconducting wire rod has a superconducting metal filament. A plurality of the conducting metal filaments are embedded in the metal matrix of a normal conductor, and a barrier layer made of a metal which does not react with Sn at 250-500°C is used in each superconducting filament. The barrier layer is preferably made of Ta, Mo or alloys of them, and the thickness of the barrier layer is preferably 0.01-1 μm. <P>COPYRIGHT: (C)2011,JPO&INPIT
151 Superconductive current limiter with magnetic field triggering JP2010055876 2010-03-12 JP2010219532A 2010-09-30 DOMMERQUE ROBERT; SERGEJ BEMERT
PROBLEM TO BE SOLVED: To provide a current limiter with magnetic field triggering that can quickly produce a large magnetic field so as to achieve a fast quench process. SOLUTION: The current limiter includes a tubular superconductor element 1 which is connected in electrical parallel with a trigger coil 3, wherein the trigger coil 3 runs from a first end of the tubular superconductor element 1 on one side of the lateral face of the tubular superconductor element 1 in the direction of the second end, is deflected at that point to the other side of the lateral face and runs back in the direction of the first end. COPYRIGHT: (C)2010,JPO&INPIT
152 Current adjusting electric device JP2007003207 2007-01-11 JP2007189228A 2007-07-26 USOSKIN ALEXANDER; PRAUSE BURKHARD
<P>PROBLEM TO BE SOLVED: To shorten a reaction time of a current adjusting electric device which comprises: a primary spool; a secondary spool which comprises a quenchable superconductor making transition from a low resistance state to a high resistance state when a current exceeds a critical value, and is combined with the primary spool via a common part of a magnetic flux, and further comprises a metal member to form a closed loop circuit; and a cryostat for cooling the secondary spool. <P>SOLUTION: The secondary spool is constituted by a considerable percentage of at least one element based on an unquenchable conductor whose resistance is not affected by a current and a magnetic field, and a part of the quenchable superconductor. Further, in at least one turn comprising the unquenchable conductor and the quenchable superconductor, the conductor and the superconductor are electrically connected to each other in series to form the closed loop circuit. <P>COPYRIGHT: (C)2007,JPO&INPIT
153 Superconducting fault current limiter device JP2004545599 2003-10-21 JP2006504254A 2006-02-02 フランシス アンソニー ダーマン; ティモシー ポール ビールス
磁芯(50)から分岐する少なくとも第一および第二のアーム(31、32)と相互接続している前記磁芯を含む、相互接続した高透磁率構造と、前記磁芯を囲んで前記磁芯にバイアスをかける超伝導コイル(33、34)と、前記第一のアームを囲んで交流電源と相互接続している第一の交流コイル(36、37)と、前記第二のアームを囲んで交流負荷と相互接続している第二の交流コイル(38、39)とを含む超伝導限流装置であって、前記第一および第二の交流コイルが、前記磁芯と磁気的に接続されていて、前記負荷に故障が生じたならば前記限流装置を通過する電流を制限すべく動作する超伝導限流装置(30)である。
154 Superconducting current limiting device JP2004300201 2004-10-14 JP2005191539A 2005-07-14 BOCK JOACHIM; ELSCHNER STEFFEN; BREUER FRANK
<P>PROBLEM TO BE SOLVED: To make a transition (quenching) from a superconducting state to a normal conducting state uniform and easy in a superconducting current limiting device which is a current limiting element such as a leakage current limiter formed by winding a coil on a superconductor. <P>SOLUTION: In a superconducting current limiting device comprising a superconductor component 1, each superconductor component comprises a superconductor body 2 on which a coil 3 is wound, and the coil 3 is electrically connected to the superconductor body 2. Then a magnetic field is generated on the superconductor by a current flowing through the coil on transition of the superconductor from the superconducting state to the normal conducting state. The magnetic field makes a transition (quenching) from the superconducting state to the normal conducting state smooth, and as the device is self triggering (induction), fault state detection and the generation of the magnetic field for quenching are not required. <P>COPYRIGHT: (C)2005,JPO&NCIPI
155 Superconductor and a method for manufacturing the same, and the current limiting device having the superconductor having a superconducting material having a high critical temperature JP2000525935 1998-12-07 JP2001527298A 2001-12-25 リース、ギュンター
(57)【要約】 電流を所定の方向に通す超伝導体(10)は金属製の基板(11)並びにこの基板に析出された電気的に絶縁性の少なくとも1つの中間層(12)と、この中間層に析出された、高い臨界温度の超伝導体層(13)とを備えた少なくとも1つの導電路(L)を備える。 この導電路(L)はその超伝導体層(13)と基板(11)との間に、電流の流れ方向に延びて、超伝導体層と基板との電気的な並列接続のための、少なくとも1つの接続部(15a、15b)を有する。 この超伝導体は特に電流制限装置用として使用される。
156 Fault current limiter JP2000523730 1998-11-30 JP2001525650A 2001-12-11 ウド、フロム; クリスチャン、サッセ; ソーステン、シュッテ; ヤン、ブランゲフォルト
(57)【要約】 電流搬送路を有する電システムの障害電流制限器(4)であって、電流搬送路(3)に配設され、超伝導特性を有する超伝導体手段を備える超伝導装置(6)と、電界を閉じ込める超伝導体手段を取り囲む固体電気絶縁(9)と、障害電流制限器(4)の使用中に臨界温度よりも低い温度に超伝導体手段を冷却する冷却手段(12)とを具備してなる障害電流制限器(4)。
157 Current limiter JP23773699 1999-08-25 JP2001061228A 2001-03-06 OKAZAKI TORU
PROBLEM TO BE SOLVED: To provide a superconducting current limiter that enables securing of a sufficient impedance to limit excessive current, that is produced at an accident, without having to use an iron core and that achieves perfectly canceling conditions of magnetic field at normal operations. SOLUTION: This current limiter is provided with first superconducting coils 1 and second ones 2 comprising the windings of superconductors. The first superconducting coils 1 are connected electrically in series to the second coils 2. The first coils 1 and the second ones 2 generate magnetic field in directions opposite to each other, when a current is mode to flow. In addition, the current limiter is provided with a resistor R2 or an inductor, that is electrically connected in parallel with the second superconducting coils 2. The first superconducting coils 1 and second ones 2 are arranged alternately in a ring shape, in such a way that the coil axis forms a circle.
158 Current limiter JP17425188 1988-07-13 JP2935235B2 1999-08-16 TSURUNAGA KAZUYUKI; OKUMURA HIROYUKI; MASUDA YOSHIHISA
159 Hybrid current limiter JP18711591 1991-04-24 JPH04226008A 1992-08-14 BAN DOAN FUAMU; JIYANNPIEERU DOYUPURA; MISHIERU KORE; IBU BURIYUNE; PASUKARU TEIKUSADOORU
PURPOSE: To make possible close electromagnetic coupling between two coils by providing a first coil of normal conductivity conductive material with many turns, electrically connected in series to a superconducting coil of small self- inductance and a second coil of normal conductivity conductive material with power number of turn, is combined tightly with the first coil. CONSTITUTION: In normal operation, with a closed breaker D a normal current flows in a branch comprising a first coil E1 and a superconducting coil B. When a short circuit is formed, the value of the current exceeds a threshold of the coil B to transfer the coil B into a normal conduction state, resulting in an extremely large value for its resistance. Thereby, almost all of the current flow in the other branch provided with a second coil E2. A faulty current is limited by an intrinsic inductance of the coil E2. Here, the inductance is set sufficient a value so as to reduce the faulty current to a value equal to about 3-4 times the normal current. The residual current is cut off with a breaker D. COPYRIGHT: (C)1992,JPO
160 Superconducting current limiter JP16852690 1990-06-28 JPH0458725A 1992-02-25 HARA CHIKUSHI; OKANIWA KIYOSHI; TSURUNAGA KAZUYUKI; SAWAMURA MITSUHITO; ITO DAISUKE; MASUDA YOSHIHISA
PURPOSE: To shorten the restoring time of trigger coils to superconducting states so as to suppress the heat produced by the coils and, at the same time, to reduce the coolant consumption of the coils by constituting the coils so that the resultant value of induced voltages generated across each trigger coil by magnetic fluxes from a current limiting coil can be minimized. CONSTITUTION: The first and third trigger coils 3B and 3D are coiled clockwise and the second and fourth trigger coils 3C and 3E are coiled counterclockwise. As a result, voltages induced at current limiting time offset each other and a loop current is reduced. When such constitution is used, an excessively large accidental current is quenched in a moment and the occurrence of an overcurrent is suppressed and, at the same time, the flowing direction of the accidental current is turned to a current limiting coil 3a side. Therefore, the Joule loss of the trigger coils and coolant vaporizing quantity can be reduced and the restoring time of the trigger coils to superconducting states can be shortened. COPYRIGHT: (C)1992,JPO&Japio
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