WO2009062491A2 - Vorrichtung und verfahren für den transport und den transfer eines permanentmagnetläufers - Google Patents
Vorrichtung und verfahren für den transport und den transfer eines permanentmagnetläufers Download PDFInfo
- Publication number
- WO2009062491A2 WO2009062491A2 PCT/DE2008/001879 DE2008001879W WO2009062491A2 WO 2009062491 A2 WO2009062491 A2 WO 2009062491A2 DE 2008001879 W DE2008001879 W DE 2008001879W WO 2009062491 A2 WO2009062491 A2 WO 2009062491A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- electric machine
- magnetic field
- transfer
- runner
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
- B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
- B65D2585/6802—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles
- B65D2585/6875—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts
Definitions
- the invention relates to a device for the transport and introduction of a rotor having at least one permanent magnet into a rotating electrical machine, in particular a generator for wind power plants, wherein the rotating electrical machine comprises at least one stator with at least one electrically conductive conductor loop and the runner is at least partially provided with the device during transport and / or during the insertion process, and that the magnetic field of the runner, which is pronounced outside the runner, is substantially changed by the device.
- the invention also relates to a method for the transport of a rotor having at least one permanent magnet for a rotating electrical machine, which includes providing the rotor with a device, the transport of the rotor provided with the device and the removal of the device from the rotor, wherein the corresponding device has an inventive expression.
- the invention comprises a method for introducing or removing a rotor having at least one permanent magnet into or out of a rotating electrical machine, wherein the electric machine comprises, in particular, a generator for wind turbines, which determines the location of a device with respect to the electrical machine, which comprises substantially stationary fixing of the device with respect to the electrical machine, transferring the rotor, releasing the substantially stationary fixing of the device and removing the device, the corresponding device having an inventive feature.
- the electric machine comprises, in particular, a generator for wind turbines, which determines the location of a device with respect to the electrical machine, which comprises substantially stationary fixing of the device with respect to the electrical machine, transferring the rotor, releasing the substantially stationary fixing of the device and removing the device, the corresponding device having an inventive feature.
- Rotary electrical machines hereafter referred to as electrical machines or machines, need for their operation an excitation power, which is usually generated by means of current-carrying windings in the rotor of the machine.
- an excitation power which is usually generated by means of current-carrying windings in the rotor of the machine.
- the permanent-magnet-excited machines in which the rotor excitation takes place by means of permanent magnets, which are mounted on or in the rotor. This eliminates not only the actual electrical excitation power but also the components required for electrical excitation, such as excitation windings and devices, as well as wear-prone brushes and slip rings.
- DE 195 46 689 discloses a method and an apparatus for retracting a rotor provided with permanent magnets into the stator of an electrical machine which has a cylindrical stator with iron core and stator winding.
- an opposing magnetic field is generated.
- the opposing field is characterized by the supply of the stator winding and / or the rotor winding with direct current to the effect that an adhesion effect is prevented.
- To determine the magnetic field strength Hall sensors are mounted in the air gap between the stator and rotor. The values of these Hall sensors are used to control the direct current.
- the invention has for its object to improve the prior art.
- the object is achieved by a device for the transport of a rotor having at least one permanent magnet to the mounting location of an electrical machine, in particular a generator in a nacelle of a wind turbine, wherein the electric machine at least one stator (rotor) with at least one electrically conductive Conductor loop, wherein the pronounced outside the rotor magnetic field of the rotor is substantially changed by the device.
- a transport device which protects the environment and the rotor from the magnetic field of the permanent magnet with little effort.
- the device can be designed so that the device and the rotor need only slightly more space than the runner itself. Since fewer conductor loops are sufficient to generate a countermagnetic field or permanent magnets in the device attenuate the magnetic field. If the runner were in an electric the dimensions would be much larger. Thus, limited space can be accommodated.
- Electrical machines of the type mentioned here may in particular comprise generators for wind energy or wind power plants.
- runners (rotors) for generator transmission designs can be transported protectively. This is especially true for runners which have a rotational speed between 100 and 800 revolutions per minute. This also applies to ring generators and generator gear arrangements with a much higher rotational speed (eg 1200 rpm to 2400 rpm).
- the magnetic field of the rotor pronounced outside the rotor can be substantially reduced by the device compared to the magnetic field which is only pronounced by the rotor.
- the device may at least partially comprise a material with ferromagnetic properties.
- the magnetic field of the rotor acting on the environment can be influenced.
- the magnetic field outside the device can thus have approximately zero values.
- the magnetic field lines emanating from the rotor can predominantly be guided through the device. This can be realized, for example, by iron cores or transformer laminations arranged in the device.
- the device may comprise at least one conductive conductor loop, by means of which a magnetic field is generated by energization.
- the device may comprise permanent magnets, which are aligned so that the effective magnetic fields of the rotor in the environment are considerably reduced.
- At least one component of the device for guiding and / or fixing the rotor can be configured.
- a transfer of the rotor into the electric machine (or vice versa) can be defined.
- the component of the device which serves for guiding or fixing the rotor, can guide or fix the rotor with respect to its axis of rotation.
- the device may be designed such that the device is flanged to the electric machine so that an introduction of the rotor into the electrical machine or from the electrical machine into the device can be realized.
- the rotor further resources (eg cranes) are to be used.
- the risk of injury to a fitter can be reduced.
- the object is achieved by a method for the transport of a rotor having at least one permanent magnet for an electrical machine, the method comprising the steps
- the steps can be done in reverse order. Thus, it can be ensured that damage to the runner and / or the environment during transport or excluded.
- the device may at least partially surround the runner during transport. As a result, environment and / or runners can be protected with little device outlay.
- the device may be at least partially located within the rotor during transport. This may relate in particular to a device for energizing the rotor or the conductor loops contained therein. In order for the device and the runner to form a unit which is protected against vibration, the runner may be guided and / or fixed during transport by at least one device of the device.
- the device having the loop may be energized in such a way that the magnetic field acting outside the rotor and the device is less pronounced than in the currentless condition of the conductor loop.
- This energization can be designed to be switchable, so that, for example, during a storage, no energizing and during transport, an energizing occurs.
- the device having the permanent magnet may be so pronounced that the magnetic field acting outside the rotor and the device is less pronounced.
- the object can be achieved by a further method for introducing a rotor having at least one permanent magnet into an electric machine or for removing a rotor comprising at least one permanent magnet from an electric machine, wherein the electric machine in particular is a generator for wind power plants comprising, the method comprising the steps of: the location of the device described above with respect to the electrical machine,
- a transfer of the rotor between the device and the electric machine can be carried out at least partially by a transfer unit which mechanically moves the rotor accordingly.
- the transfer of the rotor between the device and the electric machine can be carried out at least partially by the magnetic interactions acting between the rotor and at least the current-carrying conductor loop of the device.
- the proportion of manual transfer can be reduced or eliminated.
- a transfer of a rotor having at least one loop conductor between the device and the electric machine at least partially by the magnetic interactions between the device and at least one energized conductor loop of the rotor. This can be done via the pronounced magnetic field and the directional interaction of attraction and repulsion forces transfer of the rotor.
- the interaction of repulsive and attractive forces on the rotor can be realized by one embodiment of the method, wherein the transfer of the rotor between the device and the electric machine at least partially by the magnetic interactions between the device and at least one stator conductor of the electric Machine is done.
- This can be realized, for example, by means of a control device which is mounted on the generator and connected to the respective conductor loops in a controlled and regulating manner.
- the object can be achieved by a method for transferring runners into or out of an electrical machine, wherein one of the methods described above can be used, wherein the course of energizing the conductor loops on hand at least one measured variable is dynamically controlled.
- a defined transfer of the rotor can be realized.
- the dynamic regulation of the energization can serve for the transfer of the rotor between the device and the electrical machine.
- one of the measured variables is a distance measure which is determined by means of a suitable distance sensor.
- Distance sensors of the type described here can be made on optical or other electromechanical basis.
- the distance large determined and calculated a manipulated value for the actuator which here imprint the current of the conductor loop.
- at least one of the measured variables may be a measure of the characteristic of a magnetic field which is determined by a suitable magnetic field sensor.
- a suitable magnetic field sensor for example, as a magnetic field sensor, a Hall probe can be used.
- the dynamic control can essentially be realized by a control unit.
- the object can be achieved by a method for mounting a generator in a nacelle of a wind energy plant, wherein a runner, in particular with permanent magnets designed runner, and a stand are transported sequentially in the machine house, wherein runners and stand assembled form the function of a generator and runners and stands are mounted in the machine house.
- the crane By successively lifting rotor and stator (stand), the crane, which lifts these parts in the machine house, be designed with lower load capacity.
- the device for transporting the rotor is designed with a lower weight, so that devices in connection with the rotor have a lower weight than the overall generator.
- the object is achieved by a method for maintenance and / or repair of a generator in a wind energy plant, wherein the to be serviced and / or repaired runner is transferred from the generator and the functioning runner is transferred into the generator.
- a device for the transport and introduction of a rotor having at least one permanent magnet into a rotating electrical machine in particular a generator for wind turbines, can be provided, wherein the rotating electrical machine has at least one stator with at least one comprises electrically conductive conductor loop and the rotor is at least partially provided with the device during transport and / or during the Einbringvorganges and that the pronounced outside of the rotor magnetic field of the rotor is substantially changed by the device.
- this can significantly reduce the magnetic field of the rotor, which is pronounced outside the rotor, in relation to the magnetic field which is only pronounced by the rotor.
- the device consists at least partly of ferromagnetic material. Due to the high permeability of the ferromagnetic regions, the magnetic field lines emanating from the rotor are concentrated substantially within these regions, thus weakening the field which is effective outside.
- the device may have at least one conductive conductor loop. By energizing the conductor loop, a magnetic field can be pronounced which can influence the magnetic field emanating from the rotor.
- a further preferred embodiment of this device may include at least one permanent magnet which forms a magnetic field, wherein the magnetic field of the permanent magnet may influence the magnetic field emanating from the rotor.
- a particular embodiment of this device can have at least one component which can serve to fix and / or guide the rotor.
- the definition of the fixation of the rotor may include both the essentially releasably fixed connection of the device with the rotor, as well as the releasably fixed relative location of the device and the rotor relative to one another.
- the guide of the rotor may include all device components that ensure that a change in the relative position of the device and rotor to each other corresponds to a fixed space curve.
- the corresponding component of the device can be designed such that the rotor can be guided and / or fixed relative to its axis of rotation.
- the component for fixing the rotor can be designed as a shaft on which the rotor can be fixed in the axial direction and / or against rotation with respect to the shaft.
- the component for guiding the rotor can be embodied as a shaft on which the rotor can be guided parallel to its axis of rotation.
- Such devices are used in a method for the transport of a rotor having at least one permanent magnet for a rotating electrical machine.
- the method according to the invention includes providing the runner with the device, transporting the runner provided with the device and removing the device from the runner.
- the device may be located relative to the runner during transport such that the device at least partially surrounds the runner.
- the device may be located relative to the runner during transport such that the device is at least partially within the runner.
- the device may comprise at least one component by means of which the rotor can be guided and / or fixed as a method step during transport.
- Another variant of the method can be realized in that at least one conductor loop of a corresponding device according to the invention is energized such that the outside of the rotor and the device effective magnetic field is less pronounced than this in the de-energized state of the conductor loop is the case.
- the device may be equipped with at least one permanent magnet in such a way that the interference of the magnetic fields of the permanent magnet and of the rotor leads to a magnetic field which is less pronounced outside the rotor and the device than would be the case without the presence of the permanent magnet.
- the device can be used in a method for introducing or removing a rotor having at least one permanent magnet in or out find a rotary electric machine, wherein the electric machine comprises in particular a generator for wind turbines, which is the location of a device with respect to the electric machine, the substantially stationary fixation of the device with respect to the electric machine, the transfer of the rotor, the release of substantially local - Firm fixation of the device and the removal of the device comprises.
- the electric machine comprises in particular a generator for wind turbines, which is the location of a device with respect to the electric machine, the substantially stationary fixation of the device with respect to the electric machine, the transfer of the rotor, the release of substantially local - Firm fixation of the device and the removal of the device comprises.
- the stationary fixation of the device with respect to the electrical machine can be carried out by a connection of the two components, wherein a very particularly preferred type of connection can be realized by flanging.
- the transfer of the rotor between the device and the electric machine can take place at least partially by a unit which mechanically moves the rotor accordingly. This mechanical movement can also be done manually in a particularly preferred variant.
- a further possibility for the process-oriented, at least partial transfer of the rotor can be based on the magnetic interactions between the rotor and its surroundings, in particular a device described here and / or the electric machine.
- these magnetic interactions can be characterized by at least one appropriately energized conductor loop in the device according to the invention.
- the corresponding interactions can be determined by the energization of at least one conductor loop contained in the rotor.
- such magnetic interactions can be effected by the energization of at least one conductor loop of at least one stator of the electric machine.
- the energisation of the conductor loops can be dynamically regulated on the basis of at least one measured variable.
- the dynamic control of the energization can be carried out such that the rotor is transferred at a speed between lmm / s and 100mm / s between the device according to the invention and the electric machine.
- the dynamic control can be based on at least one distance measure, which in turn can be determined by a suitable distance sensor.
- a measure of the extent of a magnetic field can also be used, which can be determined by a suitable magnetic field sensor.
- control unit which in a preferred embodiment of the method according to the invention can essentially be embodied as a control unit.
- Figure 1 a schematic sectional view of a permanent magnet synchronous machine.
- Figure 2a a sectional view through an inventive device with incorporated permanent magnet rotor.
- FIG. 2b shows a side view of the device according to the invention shown in FIG. Figure 3 is a sectional view of a flanged to an electric machine device during the transfer process.
- Figure 4 a mechanical transfer unit.
- the rotary electric machine shown in FIG. 1 is a permanent magnet synchronous machine.
- the outer stator 101 is made of laminated cores having ferromagnetic properties and is formed such that a plurality of conductor loops 103 can be accommodated.
- the rotatably mounted on a rotor shaft 109 rotor carrier 107 is equipped with a plurality of permanent magnets 105 different orientation, the populated rotor carrier 107 is hereinafter referred to briefly as a rotor.
- the stationary part of the machine so the stators 101 with the conductor loops 103 separated from the rotating part, equipped with permanent magnets 105 runner 107, built and maintained and must therefore be transported and assembled independently.
- FIGS. 2a and 2b A device suitable for the transport of such a rotor construction is shown in FIGS. 2a and 2b.
- 2a shows a section through such a device, in which a rotor 201 of an electric machine is located.
- the device consists essentially of a ferromagnetic hollow cylinder 203, in the inner wall of which conductor loops 205 are introduced in such a way that they lie directly opposite a permanent magnet of the rotor 201 located inside the hollow cylinder.
- the position of the rotor 201 is fixed within the hollow cylinder by means of corresponding hard plastic pads 211.
- the device has on one side a flange 207 with corresponding holes 209, by means of which the device can be releasably attached to other objects.
- Fig.2b the identical device is shown in side view. By means of the attachment point 213, the device can be transported with or without runner 201 located in the device.
- the rotor 201 is surrounded with the device in a first method step.
- the device and the rotor are placed to each other such that on the one hand the axis of rotation of the rotor and the radially symmetric
- Axis of the hollow cylinder 203 match and on the other hand, a distance between rotor and
- Device is that excludes overcoming the static friction of both components by acting, magnetic forces of attraction.
- the individual conductor loops 205 of the device thus located are energized in such a way that an attraction between the device and the rotor 201 is minimized.
- the degree of current flow is dynamically controlled by a control unit, a so-called programmable logic controller (PLC) or an FPGA (not shown) on the basis of measured variables describing the currently expressed magnetic field.
- PLC programmable logic controller
- FPGA field-programmable gate array
- the distance between the device and the rotor is reduced by manually displacing the rotor along its axis of rotation until the rotor is completely inside the device (see Figure 4).
- the manual displacement of the rotor is realized by a rack drive.
- the rotor 201 is connected for this purpose via a brace 403 with a rack 405, which can be moved via a gear 407 in the direction of the axis of rotation of the rotor 201, wherein the drive of the gear 407 is effected by a handwheel 409.
- control unit continuously changes the energization of the individual coils in such a way that the effective attraction between rotor and device is kept to a minimum.
- the device can be transported with the runner therein.
- the coils 205 can be energized by the control unit in such a way that the superposition of the magnetic fields leads to a weakening of the field outside the device. If energization of the coils 205 during transport is not possible due to a lack of power supply, the coils 205 can remain de-energized and the reduction of the effective magnetic field of the rotor 201 is effected by the action of the ferromagnetic cylinder 203 of the device.
- a transport eye 213 shown in Fig. 2b is provided, by means of which the device can be lifted and spent.
- the device with the rotor 201 therein is fixed with respect to the electric machine 311 such that the opening of the device for inserting / removing the runner and the rotor opening of the machine are directly opposite to each other. This is done by flanging the device by means of the screw 309 of the flange 207 with the machine 311. If the device 203 is located relative to the machine 311, there is a change in the energization of the coil 205 of the apparatus and / or the coil 103 of the electric machine in that a magnetic repulsion between rotor and device or an attraction between the rotor and machine occurs, due to which the rotor is moved in the direction of the rotor opening of the electric machine 311.
- the transfer of the rotor takes place at a speed of between lmm / s and 100mm / s.
- the current supply is controlled by the control unit, which determines the amount of current supplied based on various measured values.
- the current characteristic of the magnetic field is determined by magnetic field sensors 321, which are designed as Hall sensors, on the other hand, a determination of the current position of the rotor takes place on the basis of a distance measure, which is detected by an optical distance sensor 323.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008003000T DE112008003000A5 (de) | 2007-11-14 | 2008-11-14 | Vorrichtung und Verfahren für den Transport und den Transfer eines Permanentmagnetläufers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007054696.5 | 2007-11-14 | ||
DE102007054696A DE102007054696A1 (de) | 2007-11-14 | 2007-11-14 | Vorrichtung und Verfahren für den Transport und den Transfer eines Permanentmagnetläufers |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009062491A2 true WO2009062491A2 (de) | 2009-05-22 |
WO2009062491A3 WO2009062491A3 (de) | 2009-11-19 |
Family
ID=40576782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2008/001879 WO2009062491A2 (de) | 2007-11-14 | 2008-11-14 | Vorrichtung und verfahren für den transport und den transfer eines permanentmagnetläufers |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102007054696A1 (de) |
WO (1) | WO2009062491A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016013777A1 (de) * | 2016-11-18 | 2018-04-12 | Audi Ag | Vorrichtung und Verfahren zum Transportieren einer Komponente |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1489099A (fr) * | 1966-05-20 | 1967-07-21 | Brissonneau & Lotz | Procédé de dégagement du rotor d'une machine électrique et appareillage pour l'application dudit procédé |
US4157613A (en) * | 1977-12-23 | 1979-06-12 | D. A. Griffin Corp. | Apparatus for inserting a rotor into a stator |
EP0769839A1 (de) * | 1995-10-20 | 1997-04-23 | Honda Giken Kogyo Kabushiki Kaisha | Motor mit Reduktionsgetriebe, Montageverfahren und Wartungsverfahren desselben |
DE19546689A1 (de) * | 1995-12-14 | 1997-06-19 | Abb Patent Gmbh | Einfahren eines Läufers mit Permanentmagneten in den Ständer einer elektrischen Maschine |
EP1586515A1 (de) * | 2004-04-13 | 2005-10-19 | Siemens Aktiengesellschaft | Schwertransportbehälter zum lagern und transportieren eines generator- oder erregerläufers |
DE102006017005A1 (de) * | 2005-04-13 | 2006-10-19 | Hitachi Koki Co., Ltd. | Elektrowerkzeug |
-
2007
- 2007-11-14 DE DE102007054696A patent/DE102007054696A1/de not_active Withdrawn
-
2008
- 2008-11-14 DE DE112008003000T patent/DE112008003000A5/de not_active Withdrawn
- 2008-11-14 WO PCT/DE2008/001879 patent/WO2009062491A2/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1489099A (fr) * | 1966-05-20 | 1967-07-21 | Brissonneau & Lotz | Procédé de dégagement du rotor d'une machine électrique et appareillage pour l'application dudit procédé |
US4157613A (en) * | 1977-12-23 | 1979-06-12 | D. A. Griffin Corp. | Apparatus for inserting a rotor into a stator |
EP0769839A1 (de) * | 1995-10-20 | 1997-04-23 | Honda Giken Kogyo Kabushiki Kaisha | Motor mit Reduktionsgetriebe, Montageverfahren und Wartungsverfahren desselben |
DE19546689A1 (de) * | 1995-12-14 | 1997-06-19 | Abb Patent Gmbh | Einfahren eines Läufers mit Permanentmagneten in den Ständer einer elektrischen Maschine |
EP1586515A1 (de) * | 2004-04-13 | 2005-10-19 | Siemens Aktiengesellschaft | Schwertransportbehälter zum lagern und transportieren eines generator- oder erregerläufers |
DE102006017005A1 (de) * | 2005-04-13 | 2006-10-19 | Hitachi Koki Co., Ltd. | Elektrowerkzeug |
Also Published As
Publication number | Publication date |
---|---|
WO2009062491A3 (de) | 2009-11-19 |
DE112008003000A5 (de) | 2010-08-05 |
DE102007054696A1 (de) | 2009-05-28 |
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