EP3123601A2 - Support isotherme et récipient à vide pour enroulements supraconducteurs dans des machines rotatives - Google Patents

Support isotherme et récipient à vide pour enroulements supraconducteurs dans des machines rotatives

Info

Publication number
EP3123601A2
EP3123601A2 EP15741802.1A EP15741802A EP3123601A2 EP 3123601 A2 EP3123601 A2 EP 3123601A2 EP 15741802 A EP15741802 A EP 15741802A EP 3123601 A2 EP3123601 A2 EP 3123601A2
Authority
EP
European Patent Office
Prior art keywords
vacuum
rotor body
wall
vacuum container
pair
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.)
Withdrawn
Application number
EP15741802.1A
Other languages
German (de)
English (en)
Inventor
Otto Batz
Michael Frank
Jörn GRUNDMANN
Anne Bauer
Peter Kummeth
Peter Van Hasselt
Dietmar Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Siemens AG
Original Assignee
Voith Patent GmbH
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH, Siemens AG, Siemens Corp filed Critical Voith Patent GmbH
Publication of EP3123601A2 publication Critical patent/EP3123601A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
    • H02K55/02—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type
    • H02K55/04—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H02K3/51—Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/225—Heat pipes
    • 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

Definitions

  • the present invention relates to a rotating machine according to the preamble of the main claim and a method for its production according to the preamble of the first independent claim and associated method for cooling a corresponding rotating machine.
  • cryogenic or cold superconducting windings in rotating machines in particular synchronous generators or synchronous motors
  • warm motor thorns basically results in the need to accommodate each winding in a vacuum vessel in order to allow a sufficiently good thermal insulation in the first place.
  • the forces acting on the winding in the respective application must be reliably transmitted from the cold winding to the warm wall of the vacuum container which is at or above the room temperature.
  • Such attacking forces may be, for example, magnetic forces or centrifugal forces, or also occur in accidents, which must be considered.
  • thermally poorly conducting materials are used for corresponding support or tension elements between a single winding and its vacuum envelope.
  • Such materials may be, for example titanium or preferably glass fiber reinforced plastics (GRP).
  • GFP glass fiber reinforced plastics
  • a rotary machine in particular a synchronous machine, having cold superconducting windings positioned in a warm soft magnetic rotor body, wherein at least two windings between two adjacent soft magnetic pole bodies are positioned adjacent to each other for thermal insulation in a common pair vacuum tank by means of support elements are fixed, and the at least two windings are connected to each other at their two sides facing each other isothermally by means of at least one common support and / or tension element.
  • the superconducting winding may be referred to as “cold” and the soft-magnetic rotor body and the wall of the vacuum vessel may be referred to as “warm”.
  • Cold here means having a temperature close to the operating temperature of the superconductor and “warm” here means having a temperature greater than or equal to room temperature.
  • Connecting isothermally means, in particular, that two elements, in particular windings, are mechanically coupled to one another and / or mechanically connected to one another such that both elements have the same temperature, in particular in the region of a bridge providing the isothermal connection or one that is isothermal Connect providing link, have. It takes place in this way no heat transfer by means of heat conduction between the both elements, since a temperature profile from one to the other element is constant.
  • a rotating machine may comprise a soft-magnetic rotor body having a plurality of soft-magnetic pole bodies on a soft-magnetic support body (yoke).
  • a soft magnetic material for example, iron, steel, nickel-iron or cobalt-iron alloys can be used. Between two soft magnetic pole bodies in each case two windings are positioned adjacent to each other. Between two soft magnetic pole bodies, a spacing region may be formed in the form of a groove.
  • Polar bodies may be formed as pole teeth or as a pole shoe-pole core combination.
  • Single and pair vacuum containers in a rotor body may have outer and inner radii to the axis of rotation thereof.
  • Windings a complicated shape of the entire vacuum container or vacuum vessel, in particular in the field of winding heads.
  • a method is proposed for producing a rotating machine, in particular a synchronous machine, having cold superconducting windings positioned in a hot soft magnetic rotor body, two windings each positioned adjacent to each other between two adjacent soft magnetic pole bodies for thermal insulation in a common Pair of vacuum containers are fixed by means of support elements, and the two windings are connected to one another at their two mutually facing sides by means of at least one common support and / or Buchele- element with each other.
  • a method of cooling a rotary machine wherein the heat generated by regions of a soft magnetic rotor body enclosed in an overall vacuum vessel is dissipated by heat conduction and / or heat radiation to an inner wall of a hollow cylinder.
  • all pair of vacuum containers of a common total vacuum container or total vacuum vessel can be replaced by this includes all pair vacuum container volume and additionally at least parts of the soft magnetic rotor body.
  • the respective pair of vacuum containers can be provided by forming a vacuum-tight connecting channel between the two
  • Winding enclosing individual vacuum containers are generated, wherein the connecting channel receives the common support and / or tension element.
  • the respective pair of vacuum containers can be produced by removing two intermediate walls between the two individual vacuum containers respectively enclosing a winding, wherein the two vacuum container parts resulting therefrom have been connected to one another in a vacuum-tight manner.
  • the overall vacuum container may be in the form of an outer wall and an inner wall having a hollow cylinder, which may be closed in the region of the base surfaces by means of annular cover.
  • the radius of the outer wall of the hollow cylinder may equal or correspond to an outer radius of the pair of vacuum containers.
  • the radius of the outer wall can be adapted in such a way that outer regions of polar bodies, in particular pole caps or pole shoes, are not contained in the overall vacuum container.
  • the radius of the outer wall of the hollow cylinder may equal or correspond to an outer radius of polar bodies of the rotor body.
  • the outer wall of the hollow cylinder is provided in such a way that outer regions of polar bodies, in particular pole caps or pole shoes, are contained in the overall vacuum container.
  • the radius of the inner wall of the hollow cylinder may correspond or equal to an inner radius of the pair of vacuum containers.
  • a yoke of soft magnetic material or a soft magnetic support body is not included in the overall vacuum container.
  • the radius of the inner wall of the hollow cylinder can correspond or equal to an inner radius of a soft magnetic support body of the rotor body.
  • a yoke of soft magnetic material or a corresponding support body of the rotor body in the overall vacuum container which may also be referred to as a total vacuum vessel, included.
  • the heat generated by the areas enclosed in the total vacuum container areas of the soft magnetic rotor body can be derived by air cooling of the outer wall of the hollow cylinder.
  • the heat generated by the areas enclosed in the total vacuum container areas of the soft magnetic rotor body can be derived by means of arranged on the rotor body circulation cooling with coolant in reaching the areas of the pipes.
  • the material of the overall vacuum container may be magnetic adjacent to the region of the soft magnetic rotor body.
  • the areas of the soft magnetic rotor body may also be referred to as "cut".
  • FIG. 1 shows an embodiment of a conventional rotating machine, wherein FIG. 1b shows an enlarged view of two individual vacuum containers of a cross-section according to FIG.
  • Figure 2a shows a first embodiment of a rotating machine according to the invention in cross section
  • Figure 2b is an enlargement of Figure 2a
  • FIG. 3 shows a second embodiment of a rotating machine according to the invention
  • FIG. 4 a representation of an overall vacuum container according to the invention
  • Figure 5 shows an embodiment of an inventive
  • FIG. 6 a representation of a cooling method according to the invention.
  • 1 a shows an embodiment of a conventional rotating machine 1.
  • the rotating machine 1 shown has a warm, soft-magnetic rotor body 3 in which cold superconducting windings 9 are each thermally insulated in a separate individual vacuum container 5 by means of support elements 7 (see FIG are positioned.
  • the soft magnetic rotor body 3 consists of a soft magnetic support body 21, which may also be referred to as a yoke, and of polar bodies 11, which may also be produced from the weichmagneti- see material.
  • the stator of the rotating machine 1 is identified by the reference numeral 2.
  • FIG. 1b shows an enlarged section of FIG. 1a with reference to two separate individual vacuum containers 5, which are positioned in the rotor body 3 and transmit forces of the windings 9 to the rotor body 3 by means of supporting elements 7 or supporting and / or pulling elements 7.
  • FIG. 2a shows a first embodiment of a rotating machine 1 according to the invention.
  • Identical elements to FIGS. 1a designate the same elements of a rotating machine 1.
  • one another adjacent positioned windings 9 creates a common pair vacuum tank 13.
  • the two windings 9 are connected to one another at their two mutually facing sides by means of a common support and / or tension element 7a. This is shown in particular in FIG. 2b, in which support elements 7 and 7a are shown.
  • FIG. 2 a shows, in particular, that in the case of synchronous machines 1 with a high number of poles, the magnetic forces of a single winding 9 in normal operation are directed essentially towards the soft-magnetic material.
  • the two deep-cold windings 9 are isothermal in this area with a common support and / or tension element 7a to connect together and thus completely save the previously incurred heat input. For this purpose, it is only necessary to connect the previously separate for each individual winding 9 individual vacuum container 5.
  • individual connections can be opened by corresponding openings in the two warm walls of the original individual sections.
  • Vacuum containers 5 are generated, which can be connected again vacuum-tight with, for example, a connecting pipe.
  • FIG. 2b shows a further alternative in which a support of two adjacent winding parts 9 of different windings 9 is advantageous, wherein the double warm wall between the original individual vacuum containers 5 is completely omitted, with the resulting vacuum vessel parts or vacuum container parts again at a suitable location must be connected according vacuum-tight. The latter can be carried out in particular by means of suitable weld-in parts.
  • FIG. 3 shows a second exemplary embodiment of a rotating machine 1 according to the invention.
  • FIG. 3 shows that all the pair of vacuum containers 13, for example according to FIG. 2 a, can be replaced by a common overall vacuum container 15.
  • a particular embodiment is an overall vacuum container 15 of a hollow cylinder having an outer wall 17 and an inner wall 19, as shown in FIG. 4, which can be closed in the region of its base surfaces by means of annular lids 20.
  • the radius Rai of the outer wall 17 of the hollow cylinder is adapted to an outer radius of the pair of vacuum containers 13.
  • the radius Ril of the inner wall 19 of the hollow cylinder corresponds to an inner radius of the pair of vacuum containers 13. According to FIG.
  • FIG. 3 additionally shows a further exemplary embodiment, in which additionally a radius Ra2 of the outer wall 17 of the hollow cylinder according to FIG. 4 is shown, which equals an outer radius of polar bodies 11 of the rotor body 3.
  • FIG. 3 likewise represents the embodiment in which the radius Ri2 of the inner wall 19 of the hollow cylinder according to FIG. 4 corresponds to an inner radius of a support body 21 of the rotor body 3.
  • outer portions of the pole bodies 11 and the support body 21 are contained in the overall vacuum tank 15.
  • the radius Rai and the radius Ra2 are shown as dashed lines.
  • FIG. 4 shows a graphic simplification of the illustration according to FIG. 3.
  • FIG. 4 shows that an overall vacuum container 15 can be closed in the area of its base by means of annular lids 20.
  • FIG. 4 shows that, when the warm, soft-magnetic material is at least partially placed inside the vacuum container, a considerable simplification in the design of the vacuum container is possible.
  • topologically a double-walled hollow cylinder can result, which has either been flanged at both ends with annular covers or sealed with comparatively short welds.
  • the material for the vacuum wall in the areas where the soft magnetic rotor material has been "cut” can be made of a magnetic material to minimize the length of the magnetic air gap.
  • FIG. 5 shows an exemplary embodiment of a method according to the invention for producing a rotating machine 1.
  • Cold superconducting windings 9 are to be positioned by means of supporting elements 7 in a warm, soft-magnetic rotor body 3.
  • 5 respective pair vacuum container 13 can be generated from originally trained single vacuum containers (step Sl).
  • step Sl two windings 9 positioned adjacent to one another between two soft-magnetic pole bodies 11 can be fixed in a respective common pair vacuum container 13 by means of support elements 7.
  • the two windings 9 can be connected to one another at their two mutually facing sides by means of a common support and / or tension element 7a.
  • FIG. 6 is an illustration for cooling a rotary machine 1 during its operation.
  • Tl represents that the heat generated by regions of a soft-magnetic rotor body 3 enclosed in an overall vacuum container 15 is dissipated by heat conduction and / or heat radiation to an inner wall 19 of a hollow cylinder.
  • T2 illustrates that the heat generated by the regions of the soft magnetic rotor body 3 enclosed in the overall vacuum container 15 is dissipated by means of air cooling from an outer wall 17 of the hollow cylinder. Cooling can also be derived by means of a circulation cooling, not shown, arranged on the rotor body 3 with coolants in pipes reaching to the regions.
  • FIG. 6 shows that the warm, soft-magnetic material displaced into the vacuum space dissipates the heat arising therefrom For example, from the iron losses or possible damper rods and the like, should be able to dissipate suitable. Depending on the level of these losses, this heat dissipation can be realized, for example by means of heat conduction and / or heat radiation to the inner vacuum wall 19, followed by, for example, air cooling on the outside of the vacuum vessel.
  • Another embodiment is an active or passive circulation cooling system arranged on the rotor body 3 with coolant in tubes which reach into or onto the vacuum space and thus to the soft magnetic material to be cooled, and transport the heat generated therefrom out of the insulated area and to another Give the job.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superconductive Dynamoelectric Machines (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne une machine rotative (1), en particulier une machine synchrone. Ladite machine comprend des enroulements supraconducteurs (9) froids positionnés dans un corps de rotor (3) magnétique doux chaud. L'invention se caractérise par le fait que respectivement deux enroulements (9), qui sont positionnés au voisinage l'un de l'autre entre deux corps polaires (11) magnétiques doux voisins pour obtenir une isolation thermique, sont fixés dans une paire commune de récipients à vide (13) au moyen d'éléments d'appui (7), et les deux enroulements (9) sont reliés l'un à l'autre de manière isotherme sur leurs deux faces tournées l'une vers l'autre au moyen d'au moins un élément d'appui et/ou de traction (7a) commun.
EP15741802.1A 2014-05-28 2015-03-24 Support isotherme et récipient à vide pour enroulements supraconducteurs dans des machines rotatives Withdrawn EP3123601A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014210191.3A DE102014210191A1 (de) 2014-05-28 2014-05-28 Isotherme Abstützung und Vakuumbehälter für supraleitende Wicklungen in rotierenden Maschinen
PCT/EP2015/056280 WO2015180860A2 (fr) 2014-05-28 2015-03-24 Support isotherme et récipient à vide pour enroulements supraconducteurs dans des machines rotatives

Publications (1)

Publication Number Publication Date
EP3123601A2 true EP3123601A2 (fr) 2017-02-01

Family

ID=53724230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15741802.1A Withdrawn EP3123601A2 (fr) 2014-05-28 2015-03-24 Support isotherme et récipient à vide pour enroulements supraconducteurs dans des machines rotatives

Country Status (6)

Country Link
US (1) US20170104381A1 (fr)
EP (1) EP3123601A2 (fr)
CN (1) CN106416030A (fr)
CA (1) CA2950371C (fr)
DE (1) DE102014210191A1 (fr)
WO (1) WO2015180860A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109411227B (zh) * 2018-11-05 2020-11-10 中国科学院合肥物质科学研究院 一种用于大型超导磁体线圈绕制的导体落模系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6803684B2 (en) * 2001-05-15 2004-10-12 General Electric Company Super-conducting synchronous machine having rotor and a plurality of super-conducting field coil windings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UST925001I4 (en) * 1973-01-29 1974-08-06 Dynamoelectric machine with a superconductive field winding for operation in either a synchronous or an asynchronous mode
JP2010252491A (ja) * 2009-04-14 2010-11-04 Sumitomo Electric Ind Ltd 回転機
JP5062263B2 (ja) * 2010-01-08 2012-10-31 住友電気工業株式会社 超電導コイル機器、超電導機器、および超電導コイル機器の製造方法
US9431864B2 (en) * 2011-03-15 2016-08-30 Siemens Energy, Inc. Apparatus to support superconducting windings in a rotor of an electromotive machine
EP2698794B8 (fr) * 2012-08-14 2017-08-30 Nexans Agencement doté d'au moins un câble supraconducteur
US9748820B2 (en) * 2013-12-04 2017-08-29 Hyper Tech Research, Inc. Superconducting generators and motors and methods for employing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6803684B2 (en) * 2001-05-15 2004-10-12 General Electric Company Super-conducting synchronous machine having rotor and a plurality of super-conducting field coil windings

Also Published As

Publication number Publication date
WO2015180860A2 (fr) 2015-12-03
CN106416030A (zh) 2017-02-15
DE102014210191A1 (de) 2015-12-03
CA2950371A1 (fr) 2015-12-03
CA2950371C (fr) 2019-03-12
WO2015180860A3 (fr) 2016-07-21
US20170104381A1 (en) 2017-04-13

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