WO2005112237A1 - Machine synchrone pourvue d'un dispositif de refroidissement statorique - Google Patents

Machine synchrone pourvue d'un dispositif de refroidissement statorique Download PDF

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Publication number
WO2005112237A1
WO2005112237A1 PCT/EP2005/052140 EP2005052140W WO2005112237A1 WO 2005112237 A1 WO2005112237 A1 WO 2005112237A1 EP 2005052140 W EP2005052140 W EP 2005052140W WO 2005112237 A1 WO2005112237 A1 WO 2005112237A1
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WO
WIPO (PCT)
Prior art keywords
synchronous machine
machine according
cooling medium
housing part
rotor
Prior art date
Application number
PCT/EP2005/052140
Other languages
German (de)
English (en)
Inventor
Joachim Frauenhofer
Norbert Huber
Jürgen Rieger
Wolfgang Schmidt
Bernd Wacker
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112005000956T priority Critical patent/DE112005000956A5/de
Publication of WO2005112237A1 publication Critical patent/WO2005112237A1/fr

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Classifications

    • 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
    • H02K3/47—Air-gap windings, i.e. iron-free windings
    • 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
    • H02K9/227—Heat sinks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1258—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with electric power transmission to propellers, i.e. with integrated electric propeller motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • B63H2021/173—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor making use of superconductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • 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
    • 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
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system

Definitions

  • the invention relates to a synchronous machine with a multi-pole rotor and a stator enclosing the rotor, which has a normally conductive stator winding to be cooled, a support structure which at least partially accommodates the stator winding and which has an essentially hollow cylindrical outer body made of soft magnetic material and axially on the inside thereof and has radially extending, web-like supporting teeth made of non-magnetic material, between which at least parts of the stator winding are arranged, contains an outer housing with a hollow cylindrical housing part surrounding the outer body and a stator cooling device for dissipating the heat generated by the stator winding to a cooling medium.
  • the stator winding is designed as a so-called air gap winding. It is located entirely in a coolant space through which a liquid coolant is passed. In order to ensure effective cooling of the winding parts in the area of the supporting teeth, cooling recesses are formed in these recesses. This requires a sufficiently large expansion of the supporting teeth in the radial direction.
  • Good sea properties of a surface ship are characterized by high speed and good maneuverability.
  • sea endurance which depends on the fuel, water and provisions as well as the operational safety of the systems and the operational capability of the crew.
  • Today the high continuous speed at sea combined with good sea behavior has become an important requirement to bridge wide sea areas.
  • the systems and components of the vehicle and on-board networks must offer a high level of functional availability in order to improve the sea properties.
  • propulsion machines for the propulsion (propeller, water jet or impeller) in the aspect ratio of the machine, active part length to active part diameter of up to 3.
  • propulsion propeller, water jet or impeller
  • active part length to active part diameter of up to 3.
  • Corresponding propulsion systems are provided in particular for fast seagoing ships. They comprise a drive by at least one water jet, the so-called “water jet”, which is generated in a pump unit with an outlet nozzle (s).
  • a pump unit with an outlet nozzle (s).
  • an impeller can be provided at the end of a pump shaft, which is connected to a motor such as an electric motor, for example high-T c superconductors or to a diesel engine or a gas turbine (cf., for example, WO 03/101820 AI).
  • the electrical system of today's ships is made up of the following components and systems: • electrical energy generation • electrical energy distribution • electrical energy consumers
  • the fully electric ship includes the use of economical, electrical energy generators for the propulsion of the ship by electrical machines (traction network) and the supply of the electrical system.
  • the power requirement of the electrical energy generator sets for future ships will be in the range of 20 - 50 MW depending on the requirements of the vehicle electrical system and the speed of the ship.
  • drives are also envisaged which have their at least one electric drive machine attached to the underside of the hull in the manner of a gondola. Such drives are also referred to as " POD drives”.
  • POD drives Such drives are also referred to as " POD drives”.
  • Corresponding drives, in particular with synchronous machines using high-T c superconductors, are generally known (cf., for example, WO 03/019759 A2, EP 0 907 556 B1, WO 03/047962 A2).
  • POD drives The primary goal of designing such POD drives is to minimize weight.
  • a specific target weight for the POD (consisting of HTS engine, nacelle housing with slide bearings and thrust bearing, propeller with shaft, POD shaft, POD suspension with azimuth module) is required for special ship types, whereby approx. 25% of the Total weight on the motor active part, consisting of rotor and stator without shaft, may be lost.
  • the goal is to achieve a hydrodynamic propeller efficiency of> 60%.
  • the ratio of the nacelle diameter to the propeller diameter is an important criterion for the POD drive and should be optimal at 0.3 ... 0.33
  • the required diameter of the active part is 950 ... 1050 mm.
  • the length of the nacelle should be as short as possible while maintaining good hydrodynamic resistance and is significantly influenced by the length of the active part.
  • the object of the present invention is now to design the synchronous machine with the features mentioned at the outset in such a way that reliable cooling of the stator winding is made possible with reduced expenditure, in particular even with a small radial expansion of the winding, as is required for ships' machines.
  • the stator winding is coupled to the cooling medium via the support structure and the housing part, the supporting teeth at least partially consisting of a material with a thermal conductivity ⁇ of over 10 W / K-m.
  • the measures according to the invention are based on the consideration that the stator winding of the synchronous machine is advantageous is practically completely cooled by heat conduction in their supporting teeth.
  • the stator winding By dispensing with supporting teeth made of ferromagnetic iron, the stator winding practically represents a air gap winding, the heat loss being dissipated from the air gap winding via the carrier structure for this winding. It does not matter whether one or more, for example, electrically offset stator systems are implemented as an air gap winding. So no stator teeth made of iron as in known machines are used, but with a material with a sufficiently high thermal conductivity (thermal conductivity ⁇ ).
  • the measures according to the invention are essentially based on the fact that the heat dissipation via highly conductive material in a range from over 10 W / K-m up to 1000 W / K-m from the in
  • General stator winding having copper conductors can be achieved by their inevitable insulation, the heat being given off to the enveloping outer body.
  • this enveloping outer body consists of a soft magnetic material such as iron in particular, which must have a relatively large cross section for adequate magnetic flux guidance and is therefore able to absorb and dissipate sufficient heat.
  • the delivery takes place at least via the housing part enveloping it and optionally via further parts of the outer housing to the cooling medium wetting it from the outside, preferably directly or indirectly in water such as e.g. Sea water or fresh water, or also to a gaseous cooling medium such as cold air.
  • winding heads of the stator winding which, owing to their highly complicated three-dimensional geometry, cannot generally be inserted into the support structure, dissipate heat by conduction via the copper conductors of the stator winding
  • Part (active part) of the winding (in the area of the soft magnetic outer body enveloping it) takes place. From there it will with the thermally conductive supporting teeth, this heat as well as the heat from the straight active part is dissipated to the soft magnetic outer body, which is cooled by the cooling medium via the housing part. The heat is thus transported into the cooling medium essentially only via the supporting teeth and the outer body, which together form the support structure, and at least via the housing part of the outer housing.
  • the housing part also consists at least partially of a material with a thermal conductivity ⁇ of over 10 W / K-m, which in particular can also be non-magnetic.
  • the supporting teeth and / or the housing part should at least partially consist of a material with a greater thermal conductivity ⁇ than that of iron.
  • the thermal conductivity of iron is limited and is in the range of 40 to 60 W / K-m depending on the possible alloying of further materials. This means that a material with a thermal conductivity ⁇ of over 60 W / K-m is advantageously chosen.
  • the housing part of the outer housing will first be formed from a non-magnetic material.
  • a non-magnetic material such as bronze or steel and / or resistance to undesired environmental influences, such as corrosion resistance.
  • the housing part also consist of a ferromagnetic material.
  • the housing part With regard to a simple structure, it is also possible for the housing part to be designed as a component integrated in the soft magnetic outer body and preferably in one piece with it.
  • the supporting teeth are particularly advantageously constructed such that the thermal conductivity ⁇ in the radial direction is at least the value as in the tangential direction, preferably a higher value, in particular at least twice the value .
  • the supporting teeth can also be constructed such that the thermal conductivity ⁇ in this direction is at least the value as in the tangential direction
  • Direction preferably a higher value, in particular at least twice the value.
  • a metal alloy or a ceramic or a composite material is preferred as the material for the supporting teeth. If a composite material is used, it is advantageously provided that the mechanical and thermal properties, in particular the modulus of elasticity, the critical elongation at break and the thermal conductivity ⁇ , are adapted to the operating conditions of the rotor. For this purpose, the mechanical and thermal properties can advantageously be adjusted by selecting a structural support, its geometry and the proportion in the composite material, and by selecting and proportioning a filler material in the composite.
  • the structural support in the composite material can also consist of more than one material.
  • the structural support to be used in the composite material can have a higher proportion of the thermal conductivity ⁇ than it would account for after the pure proportion.
  • the supporting teeth are formed from a carbon fiber composite material with high thermal conductivity ⁇ .
  • cooling of the housing part of the synchronous machine practically all known types of cooling using liquid, optionally also gaseous coolant or coolant mixtures or phase mixtures are possible.
  • liquid coolant cooling by means of bath cooling, in particular with a relative movement of the cooling medium and housing part, can be provided. Instead, a forced flow of the cooling medium on or in the housing part (for all aggregate states of the cooling medium) is also possible.
  • the cooling medium can be stored in discrete cooling channels, e.g. of cooling coils thermally attached to the outside of the housing. Water is particularly suitable as the liquid cooling medium.
  • the cooling medium can also be located in its own cooling system, which is thermally coupled directly or indirectly to a further cooling medium.
  • An additional coolant circuit can be provided for the additional cooling medium. A heat exchange then takes place in a known manner between the further cooling medium and the cooling medium of the machine.
  • Water in particular sea water, is preferred as a further cooling medium.
  • Corresponding cooling technologies are particularly advantageous for ship applications.
  • the stator can have an axial extent of the active part of its stator winding that is at least one times its outer diameter, preferably at least twice and in particular at least four times. This means that the stator winding has only a small radial expansion.
  • Corresponding machine types are preferably used for ship applications (waterjet or POD type), pumped storage plants or for cooling water circuits, for example in power plants. ken in question. Because of the small radial expansion of the stator winding of such machines, only indirect cooling as in the invention can be achieved.
  • stator winding of the synchronous machine is a multi-pole winding of the air gap type, which generally requires a high induction of the rotor winding
  • the latter winding can advantageously be deep-cooled, being thermally directly or indirectly coupled to a suitable rotor cooling device.
  • the rotor winding can preferably be created with superconductors, in particular with those which contain high-T c superconductor material.
  • the rotor of the synchronous machine according to the invention can also have poles which are produced using permanent magnetic material.
  • Implementation forms of the rotor are also conceivable in which, in addition to poles made of permanent magnetic material, the rotor contains a deep-cooling, in particular superconducting rotor winding which is thermally coupled directly or indirectly to a rotor cooling device.
  • FIG. 1 shows a longitudinal section through a POD propeller drive of a ship with such a machine
  • FIG. 2 shows a cross section through the machine according to FIG. 1
  • 3 shows a stator groove of the machine in an enlarged detail from FIG. 2
  • FIG. 4 shows a cross section through a waterjet machine of a ship.
  • the stator cooling device of a machine according to the invention is in principle suitable for all known synchronous machines. However, it can be used particularly advantageously for machine types which have a large aspect ratio of the stator winding, i.e. the stator has an axial extension of the active part of its stator winding which is a multiple of the outside diameter.
  • the stator has an axial extension of the active part of its stator winding which is a multiple of the outside diameter.
  • Machine types then have practically no space for discrete cooling channels in the area of supporting teeth between their winding parts.
  • a corresponding type of machine is provided, for example, for POD drives of ships.
  • a corresponding machine type is to be selected for the exemplary embodiment in FIGS. 1 to 3, with known embodiments of such drives being assumed (cf., for example, WO 03/019759 A2 or EP 0 907 556 B1).
  • 2 denotes a POD drive unit of a ship, 3 a motor nacelle, 4 the hull of a ship, 5 a holding device for the motor nacelle on the ship's hull, 6 a synchronous machine according to the invention, 7 a rotor thereof Machine, with 8 a rotor shaft, which is mounted in shaft bearings 9, with 10 a ship propeller attached to the shaft, with 11 an air gap and three-phase winding as a stator winding, with 12 winding heads of this winding, with 13 a soft magnetic iron yoke as an outer body of a support structure 14 , with 15 an outer housing of the machine with a housing part 15a enclosing the soft magnetic outer body 13, with 16 a between the air gap / stator winding 11 and the outside of the rotor 7 hand air gap, with A the axis of the rotor 7 or the rotor shaft 8, with W heat flows and with K a cooling medium such as water.
  • K a cooling medium such as water.
  • stator winding 11 is largely covered by web-like supporting teeth 21i of the carrier structure 14 which extend axially, ie in the direction of the axis A; only their end windings 12 are visible.
  • the indicated heat flows W run inside the winding and in these supporting teeth.
  • the housing is advantageously constructed from a material with good thermal conductivity, which preferably has a thermal conductivity ⁇ (thermal conductivity) of more than 10 W / K-m, in particular more than 60 W / K-m.
  • ⁇ thermal conductivity
  • it advantageously consists of metal alloys such as special bronzes, or e.g.
  • the housing part 15a of the outer housing 15 forms a covering in a form-fitting manner around the soft-magnetic outer body 13.
  • Such an embodiment is in particular from the point of view of a special choice of material for the housing part, for example for reasons of good thermal conductivity and / or good resistance to undesired influences from the surrounding cooling medium, such as good corrosion resistance. sion resistance is an advantage. Therefore, in addition to the aforementioned, bronze or special steels can also be used as materials. However, such a choice of material is not absolutely essential. Of course, ferromagnetic materials can also be selected for the housing part 15a, provided the required good heat transfer is guaranteed. It is also possible that the material of the soft magnetic outer body 13 is provided for the housing part. In this case, the housing part 15 can even be designed or viewed as an integrated component of the outer body.
  • FIG. 2 shows the cross section through the machine 6 according to FIG. 1 with the outer housing 15 enclosing it or its housing part 15a.
  • the individual supporting teeth visible here between individual parts of the stator winding 11 are designated by 21i. Together with the soft magnetic outer body 13, they form the support structure 14 for the winding 11.
  • FIG. 3 illustrates an enlarged detail from FIG. 2 in the area of a stator groove 20.
  • 21a and 21b also denote two of the supporting teeth 21i which laterally delimit the stator groove in the circumferential direction, with 22j winding conductors or a package, for example Cu conductors, of the stator winding 11, with 23 a conductor insulation around the individual conductors 22j , with 24 a main insulation, with 25 a holding slide at the bottom of the groove 20 and with 26 an intermediate slide in a central region of the groove, for example according to DE 102 27 559 AI. It does not matter how much conductor material is connected in parallel in the stator or how many stator systems are used in total.
  • the most important thermal resistance is the conductor insulation of the winding conductors 22j and the main insulation 24 between the conductor package and the side supporting teeth 21a and 21b.
  • the heat generated by the conductors 22j passes through these insulations to the support teeth 21a and 21b, which are advantageously of good thermal conductivity, and from there via the teeth surrounding the groove to the outside soft magnetic outer body 13 and the housing part 15a of the outer housing 15 to the cooling medium K.
  • the intermediate slide 26 is also made from a material which is a good conductor of heat but is poorly electrically conductive, such as an aluminum oxide, aluminum nitride or another good heat-conducting ceramic.
  • the supporting teeth 21a, 21b have three functions, namely transmission of the mechanical moments, holding and spacing of the winding conductors 22j and the thermal function of heat dissipation / transmission.
  • the material for the supporting teeth is, in particular, one of the abovementioned, highly thermally conductive ceramics, metal alloys or else a composite material, in particular with carbon fibers of the highest thermal conductivity, e.g. a CFRP composite (carbon fiber reinforced plastic), in question. It is particularly advantageous here to design the fiber direction so that an optimal heat flow can take place.
  • the supporting teeth have a wedge shape. It is irrelevant which specific design and shape a single supporting tooth has, e.g. whether it is made in one piece from a uniform material or in several parts from different materials or from a sandwich material or a composite material. In any case, however, it must be ensured that the required heat flow W can be derived with sufficient intensity in the manner shown.
  • the outer housing 15 with the housing part 15a is directly washed around by sea water as the cooling medium K from the outside.
  • the machine according to the invention is also suitable for other cooling circuit run of the cooling medium K also suitable.
  • the cooling medium can thus be located in its own cooling system, which is thermally coupled directly or indirectly to a further cooling medium, for example fresh water or sea water. It is also possible for an additional coolant circuit to be provided for this additional cooling medium, in which case heat exchange takes place between the cooling medium K of the machine and this additional coolant circuit.
  • the cooling medium that cools the machine according to the invention at least in the area of the housing part 15a can be located in a container of a coolant bath or can also forcefully flow past the outer housing. Such a flow can also take place in discrete coolant channels which are arranged at least in or on the housing part. For example, corresponding coolant coils can be attached to the outside of the housing part in a good heat-conducting connection with the latter.
  • FIG. 4 A corresponding cooling technology is provided for the embodiment shown in FIG. 4.
  • the figure shows an embodiment of a synchronous machine 6 according to the invention according to Figures 1 to 3, which is held within a container housing 31 via support struts 32.
  • the cooling medium K is located in one or more intermediate spaces 33 between the container housing and the outer housing 15 of the machine 6.
  • the embodiment shown can be used in particular for waterjet drives for ships in which the actual motor is located in a machine housing in the ship's intermediate hull.
  • claws 34 are indicated on the outside of the container housing.
  • the support struts 32 transmit the torque from the machine or its outer housing to the container housing 31 and via the claws 34 arranged thereon to the foundation, in the example the ship's intermediate hull.
  • the cooling medium K located between the container housing 31 and the machine housing 15 is preferably a liquid, a liquid mixture, a cold gas or a gas mixture.
  • the cooling medium is connected to a cooling circuit, e.g. directly or indirectly to the fresh water system of a ship. Pumps can be used for this if necessary.
  • a separate water circuit is also conceivable, which cools to the sea water by means of a heat exchanger. This separate heat cycle can have natural or forced circulation. In the case of natural circulation, correspondingly large cross sections must be implemented. Natural circulation can take place, for example, due to a thermosiphon effect, in which a cooling medium, optionally water, which is adapted to the temperatures is used.
  • the machine type used for the synchronous machine according to the invention is a motor with a rotor which has a multi-pole rotor winding, in particular with high-T c superconductor material (for example in accordance with WO 03/047962 A2)
  • the machine can be used as a drive motor or generator (cf. the aforementioned W0-A2 document).
  • the machine can also have conductors using classic, metallic superconductor material or can also be constructed with normally conducting, possibly cooled conductors.
  • a synchronous machine according to the invention can also have a rotor in a known manner, which has poles made of permanent magnetic material (cf. for example EP 0 907 556 B1). If necessary, it is also possible to use poles made of permanent magnetic material with windings made of the aforementioned superconductor materials in combination.
  • the estimated efficiency of the machine at full load is approx. 97.5% including the necessary cryocooler.
  • the number of pole pairs is assumed to be 3.
  • the converter must be placed in the stern. Power is supplied via cables via the azimuth module. Depending on the drive configuration, a multi-pole machine can also be used.
  • the converter frequency is 10 Hz at a speed of 200 rpm.
  • the converter must allow motor and generator operation in order to be able to take energy out of the POD drive when braking. Up to 200 rpm, stop operations are to be implemented by rotating the POD by 180 ° and taking thrust against the direction of travel. When the PODs are rotated, the shaft speed will have to be reduced briefly and then increased again when the thrust is taken up.
  • Diameter of the drive nacelle 1200 mm (therein 1100 mm HTS motor plus potting case wall 50 mm)
  • an HTS synchronous machine for the waterjet is provided.
  • the drive motor is to be installed in the ship's intermediate floor.
  • the optimization of the diameter of the active part has priority here.
  • the length of the active part is not that important.
  • a high weight is more desirable.
  • the electrical efficiency should be high.
  • the length of the shaft of the Waterj drive depends on the one hand on the inclination towards the ship's hull and on the other hand on the overall height of the drive motor.
  • the reduction in the wavelength in turn results in a reduction in the critical hit area (see Fig. 2).
  • Propeller speed 600 rpm torque 111 kNm results from the following data:
  • Axle height 560 mm (with housing)
  • Length of the active part 2050 mm (without winding heads: 1500 mm)
  • Weight rotor + stator without shaft 10.5 t (without winding heads: 7.77 t)
  • the estimated efficiency of the machine at full load is approx. 98% including the cryocooler.
  • the number of pole pairs is assumed to be 2 here.
  • the HTS machine is a 4-pole (2-pole pairs) version.
  • the converter frequency is 20 Hz at a speed of 600 rpm.
  • the application of the machine is not limited to the area of the ship. In general, it is of particular advantage wherever machines with a small radial expansion of their stator winding, in particular of the air gap winding type, are to be used with higher performance requirements.
  • Examples of corresponding applications are water pumps, for example as use in pumped storage plants or as a cooling water pump: Such a pump can be regarded as a fixed POD, which is surrounded by a cooling medium.
  • Compressor drives for example in gas pipelines: Here too, the good heat-conducting material flows around the drive and is used for cooling directly on the outside of the housing.
  • - Shaft drives e.g. in rolling mills.
  • Generators for example in connection with a gas turbine, both a stationary arrangement and a mobile arrangement, for example for railway applications, being conceivable. Chemical / process industry devices such as extruders or air separation devices.

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

Abstract

L'invention concerne une machine synchrone (6) comprenant, par exemple, un enroulement rotorique supraconducteur et un enroulement statorique (11) à conduction normale et à refroidir. L'enroulement statorique (11) est logé au moins partiellement dans une structure porteuse (14) comprenant un corps externe (13) magnétique doux en forme de cylindre creux et des dents porteuses (21i) de type segment, s'étendant axialement et radialement et réalisées dans un matériau non magnétique. Un boîtier externe (15) comportant un élément boîtier en cylindre creux (15a) entoure le corps externe (13). L'invention vise à refroidir l'élément boîtier (15a) réalisé dans un matériau non magnétique au moins par zones partielles à l'aide d'un agent de refroidissement (K). L'enroulement statorique (11) est couplé thermiquement à l'agent de refroidissement (K) par la structure porteuse (14) et l'élément boîtier (15a). A cet effet, les dents porteuses (21i) sont réalisées au moins partiellement dans un matériau d'une conductivité thermique ? K m de plus de 10 W/K m.
PCT/EP2005/052140 2004-05-12 2005-05-11 Machine synchrone pourvue d'un dispositif de refroidissement statorique WO2005112237A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005000956T DE112005000956A5 (de) 2004-05-12 2005-05-11 Synchronmaschine mit Statorkühleinrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004023475A DE102004023475A1 (de) 2004-05-12 2004-05-12 Synchronmaschine mit Statorkühleinrichtung
DE102004023475.2 2004-05-12

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WO2005112237A1 true WO2005112237A1 (fr) 2005-11-24

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010025987A2 (fr) * 2008-09-08 2010-03-11 Siemens Aktiengesellschaft Propulsion de bateau
WO2012123547A1 (fr) * 2011-03-15 2012-09-20 Wobben Properties Gmbh Bateau
WO2012119896A3 (fr) * 2011-03-09 2013-08-22 Siemens Aktiengesellschaft Machine synchrone dotée d'un enroulement rotorique pourvu d'un supraconducteur à haute température, et dispositif amortisseur
ITVE20120020A1 (it) * 2012-07-02 2014-01-03 Franco Moro Gruppo motore fuoribordo elettrico.
EP3152110B1 (fr) 2014-06-03 2018-07-11 Rolls-Royce AB Dispositif de propulsion en nacelle et son procédé de refroidissement
CN109263844A (zh) * 2018-08-31 2019-01-25 武汉理工大学 一种船舶低速轮毂直驱集成电力推进装置

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DE102011005291A1 (de) * 2011-03-09 2012-09-13 Siemens Aktiengesellschaft HTS-Synchronmaschine mit erhöhter Läuferstreuung
DE102015218929A1 (de) 2015-09-30 2017-03-30 Siemens Aktiengesellschaft Elektrische Maschine mit thermischer Ankopplung der Wickelköpfe an eine Statortragstruktur durch Keramikringe

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WO2010025987A2 (fr) * 2008-09-08 2010-03-11 Siemens Aktiengesellschaft Propulsion de bateau
WO2010025987A3 (fr) * 2008-09-08 2011-03-24 Siemens Aktiengesellschaft Propulsion de bateau
US8517785B2 (en) 2008-09-08 2013-08-27 Siemens Aktiengesellschaft Vessel propulsion system for watercraft
WO2012119896A3 (fr) * 2011-03-09 2013-08-22 Siemens Aktiengesellschaft Machine synchrone dotée d'un enroulement rotorique pourvu d'un supraconducteur à haute température, et dispositif amortisseur
WO2012123547A1 (fr) * 2011-03-15 2012-09-20 Wobben Properties Gmbh Bateau
CN103619704A (zh) * 2011-03-15 2014-03-05 乌本产权有限公司 船
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TWI468320B (zh) * 2011-03-15 2015-01-11 Wobben Aloys ferry
ITVE20120020A1 (it) * 2012-07-02 2014-01-03 Franco Moro Gruppo motore fuoribordo elettrico.
EP3152110B1 (fr) 2014-06-03 2018-07-11 Rolls-Royce AB Dispositif de propulsion en nacelle et son procédé de refroidissement
CN109263844A (zh) * 2018-08-31 2019-01-25 武汉理工大学 一种船舶低速轮毂直驱集成电力推进装置

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