EP3563471A1 - Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage - Google Patents
Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlageInfo
- Publication number
- EP3563471A1 EP3563471A1 EP18703204.0A EP18703204A EP3563471A1 EP 3563471 A1 EP3563471 A1 EP 3563471A1 EP 18703204 A EP18703204 A EP 18703204A EP 3563471 A1 EP3563471 A1 EP 3563471A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- rotor
- air flow
- stator
- electrical machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/06—Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
- H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
Definitions
- the present invention relates to an electric machine with a stator and with a rotor rotatable relative to the stator, wherein the rotor comprises a plurality of permanent magnets. Furthermore, the electric machine comprises a rotor cooling device for cooling the rotor, wherein the rotor cooling device has at least one cooling device for providing a cooling air flow. In addition, the present invention relates to a generator arrangement with such an electrical machine. Finally, of the products contained ⁇ constricting invention relates to a wind turbine with such genes ⁇ ratoranssen.
- the terminal voltage can be at least partially limited by field weakening, which prevents damage to the inverter.
- the electric machine can be designed so that the same power a lower Polradschreib is generated.
- the electric machine or the stator of the electric machine may have a lower number of turns. Frequently, however, the low pole wheel voltage leads to disadvantages in the design. Above all, a lower power factor can result.
- Permanent magnet electrical machines or genes ⁇ generators can be instead operated on a fully controlled inverter also a pure rectifier. This is usually cheaper. However, there is the disadvantage here that the field weakening is fixed over the operating point and thus can not be changed during operation.
- This object is achieved by an electric Ma ⁇ machine, by a generator assembly and by a wind turbine according to the features of the respective independent claims.
- Advantageous further developments of the present ⁇ the invention are subject of the dependent claims.
- An electric machine comprises a stator. Furthermore, the electric machine comprises a rotor, which is rotatable relative to the stator and which comprises a plurality of permanent magnets. In addition, the electric machine comprises a rotor cooling device for cooling the rotor, wherein the rotor cooling device has at least one cooling device for providing a cooling air flow. Furthermore, the Rotorkühlvorrich ⁇ processing comprises a control device which is adapted to drive the at least one cooling means for adjusting a cooling capacity provided by the cooling air flow. The electric machine is designed as a permanent-magnet electric machine. This means that the rotor of the electric machine comprises a plurality of permanent magnets.
- the electric machine on the stator which may include, for example, a corresponding winding.
- the electric machine can be configured as a perma ⁇ nenterregte synchronous machine.
- the electrical ⁇ specific machine can be used as a generator, for example in a wind turbine are preferred.
- the electrical machine also includes the rotor cooling device, which serves to cool the rotor during operation of the electric machine.
- the rotor cooling device comprises the at least one cooling device, by means of which a cooling air flow is provided for cooling the rotor.
- a cooling air flow is provided for cooling the rotor.
- an internal circulating air stream is generated with the at least onedeeinrich ⁇ processing.
- the cooling air flow is thus preferably guided within a housing of the electrical machine. By the cooling air flow so a cooling performance is provided, which acts on the rotor Bezie ⁇ hung as cools it.
- the rotor cooling device has a control device by means of which the at least one cooling device can be ⁇ controls.
- the at least ⁇ a cooling device provided with the cooling power which acts on the rotor can be adjusted.
- the cooling capacity can be adjusted independently of a rotational speed of the rotor.
- known rotor cooling devices which comprise, for example, arranged on the shaft fan to adjust the cooling capacity, regardless of the speed of the rotor.
- it can be achieved that the permanent magnets of the rotor are not cooled or to a lesser extent, if they have a relatively low temperature aufwei ⁇ sen.
- This can be achieved that the permanent magnets are heated and consequently reduces the Polradschreib becomes. In this way, even at speeds above the rated speed of the electric machine reliable operation can be made possible without threatening damage to the electrical machine or to a downstream inverter.
- the rotor cooling device as the at least one cooling device on a fan with a fan for conveying the cooling air flow and a fan ⁇ motor for driving the fan, wherein the control device is adapted to control the fan motor for adjusting the cooling capacity.
- the rotor cooling device may therefore comprise a fan as the at least one cooling device. With this fan, the cooling air flow can be promoted.
- the fan again comprises a fan wheel, which can be driven by the fan motor.
- the fan is not connected to the shaft of the electric machine.
- the control device can control the fan motor.
- the fan motor is preferably designed as an electrical machine. It can also be provided that the control device controls a separate converter, which is connected to the fan motor. For example, the control device can activate and / or deactivate the fan motor. It can also be provided that the control device can set a rotational speed of the fan motor.
- the volume flow of the cooling air and thus the cooling power provided can be controlled.
- the rotor cooling apparatus as the at least, to control a cooling device a recooler for cooling the cooling airflow, with the Steuereinrich ⁇ processing is adapted to return cooler for setting the cooling performance.
- the rotor cooling device may have the recooler as the at least one cooling device.
- the cooling device so ⁇ probably includes the fan and the recooler as cooling devices.
- the air which For example, was heated by the rotor, cooled again ⁇ the.
- the recooler may be formed as a heat exchanger. The heat exchanger can be flowed through by a cooling medium, by means of which the cooling air flow supplied to the heat exchanger can be cooled.
- control device controls the heat exchanger or the recooler in such a way that it does not cool the cooling air flow. In this case, no cooling medium can be supplied to the heat exchanger.
- the recooler can be controlled and thus influenced who the ⁇ the extent to which the cooling air flow is cooled by means of the recooler.
- the volume flow of the coolant which flows through the recool, are set. This allows a simple and reliable adjustment of the temperature of the cooling air flow.
- the volume flow of the coolant for example, completely blocked by a valve ⁇ who.
- the cooling device has at least one air guide element, which guides the cooling air flow cooled by the recooler to the rotor.
- the cooling air cooled by the recooler can be led directly to the rotor.
- the permanent magnets of the rotor can be optimally cooled, if they have warmed in operation of the electric ⁇ cal machine.
- the cooled by the heat exchanger cooling air flow is first fed to the fan and then to the rotor. To reduce the axial length of the electrical machine, it may be necessary for the cooling air, after passing through the heat exchanger and possibly the fan, to be led over at least one stator winding head before it reaches the magnets.
- the electric machine may have a housing in which the at least one air guiding element is arranged.
- several Lucasleitele ⁇ elements are provided in the housing of the electric machine. These air guide elements serve to guide the coolant flow to the rotor.
- the at least one air guide element is designed to guide the cooling air flow in ra ⁇ Dialer direction of the electric machine to a central region of the rotor.
- the coolant flow can thus be guided by means of the fan from the recooler to the rotor.
- the coolant flow between the housing of the electric machine and the air guide elements is performed.
- the cooling ⁇ air flow in the radial direction to impinge centrally on the rotor.
- the permanent magnets of the rotor can be efficiently cooled.
- the electrical machine has at least one cooling passage, which leads the to the Ro ⁇ tor guided cooling air flow in the axial direction of the electrical machine along the rotor.
- the rotor may comprise at play ⁇ a laminated core on which the Perma ⁇ mag- nets are held.
- the at least one cooling channel can be formed. It can also be easily see ⁇ that is formed at least one cooling duct by an air gap between the rotor and the stator.
- the cooling air flow from the heat ⁇ exchanger should be performed centrally of the rotor. From there, cooling air flow can be guided along the axial direction of the electric machine from the center out to both sides.
- the permanent magnets in the rotor can be cooled from the inside or the center outwards. Subsequently, the cooling air can then be returned to the recooler to cool the cooling air accordingly.
- the cooling air flow is guided by means of the at least one air guide element in the radial direction to a first side region of the rotor.
- at least one cooling channel can be provided, through which the cooling air flow is guided in the axial direction along the rotor.
- the cooling air flow can be guided, for example, from the first side area to an opposite, second side area of the rotor. the.
- an efficient cooling of the permanent magnets can be achieved.
- the at least one air ⁇ guide element is designed to guide the cooling air flow from the Ro ⁇ tor to the recooler.
- the cooling air flow can be guided in the axial direction along the rotor.
- the cooling air flow can then be directed in the direction of the rear cooler.
- the cooling air flow is performed starting from the rotor to the winding heads of the stator or parts of the stator.
- the stator is at least partially cooled ⁇ the.
- the control means is preferably adapted to determine a Tem ⁇ temperature of the permanent magnets and adjust the cooling Leis ⁇ processing in dependence on the temperature of the permanent magnets.
- the control means is preferably adapted to determine a Tem ⁇ temperature of the permanent magnets and adjust the cooling Leis ⁇ processing in dependence on the temperature of the permanent magnets.
- the cooling power provided by means of the rotor cooling device in Ab ⁇ dependence of the current temperature of the permanent magnets.
- the permanent magnets are not cooled by the rotor cooling device or only to a small extent, if the permanent magnets have a relatively low temperature. This can be achieved that heat the permanent magnets during operation of the electric machine, whereby the Polradschreib can be reduced. If the permanent magnets have warmed during operation of the electric machine, the cooling power can be increased to cool the permanent magnet accordingly.
- the flux of the magnets can be better used and protected the magnets from demagnetization ⁇ to.
- the control device is designed to determine a rotational speed of the rotor, a terminal voltage applied to the stator and / or a current flowing through the stator and to determine the temperature of the permanent magnets on the basis of a model which determines the temperature of the perma nentmagneten depending on the speed, the terminal voltage and / or the current describes.
- the temperature of the permanent magnet is dependent on the rotational speed of the rotor, the terminal voltage, which can be tapped to the stator, and / or of the electrical current flowing through the winding of the stator. These variables can be measured for example with the aid of corresponding sensors and transmitted to the control device.
- a model can be stored, which describes the current temperature of the permanent magnet as a function of the measured speed, the terminal voltage and / or the current.
- the temperature in the vicinity of the electrical machine and / or an operating period of the electric machine can also be taken into account. This allows a reliable determination of the temperature of the permanent magnets.
- the electric machine has a stator cooling device for cooling the stator.
- This stator cooling device may preferably be provided by water jacket cooling. This can telkühlung Wasserman- an outer side of the stator arranged who surrounded at least ⁇ and the stator in regions. Alterna ⁇ tively to corresponding cooling tubes can be arranged in the laminated core of the stator and / or on an outer side of the stator. Using the stator cooling device, efficient stator cooling can be achieved during operation.
- the electric machine is preferably designed as a permanent magnet synchronous machine.
- the width ⁇ ren it is provided in particular that the electrical ma- machine is constructed as a medium-speed rotating generator or is operated as such. This means in particular that the generator is operated in a speed range between 200 and 700 revolutions per minute.
- the Wassermannkühlung in combination with a separate recooler with fan is particularly advantageous because the delivery volume of mounted on the shaft fan would not provide a sufficiently high flow of indoor air. At this comparatively low rated speed wei sen ⁇ these generators often a high number of poles on. Electrical machines with a high number of poles usually have a low Statorj och Little and thus a high thermal conductivity from the stator to the water jacket. This has an advantageous effect on the cooling of the stator.
- a generator assembly includes a dung OF INVENTION ⁇ correct electrical machine and a Umrichtervorrich ⁇ processing for converting a provided with the electrical machine in generator mode voltage.
- ⁇ voltage In the generator mode of the electric machine exchange clamping ⁇ voltage is provided.
- This AC voltage can using the inverter to an AC voltage of a network in which the voltage to be fed, adjusted ⁇ to.
- the terminal voltage can also be limited by field weakening.
- the electric machine can be operated so that no critical overspeed can occur as long as the temperature of the permanent magnet is below a predetermined target temperature. This can be achieved, for example, by limiting the speed.
- the converter device comprises a rectifier, which is electrically connected to the electric machine.
- a rectifier which is electrically connected to the electric machine.
- the AC voltage provided by the electric machine can first be rectified. Subsequently, the rectified voltage can be converted into an AC voltage with the mains frequency.
- additional condensers ⁇ ren compensation of reactive power and to increase the breakdown torque can be provided. These can be, for example each be connected between the individual phases.
- the capacitors the losses can be reduced and thus, for example, the speed can be increased.
- a wind turbine according to the invention includes a dung OF INVENTION ⁇ contemporary generator arrangement. Especially in wind turbines can occur as a result of gusts speeds above the rated speed. By the rotor cooling device can be prevented that the permanent magnets are too cold and thus results in a high Polradschreib.
- FIG. 1 shows an electrical machine according to the prior art in a sectional side view
- FIG. 2 shows an electrical machine according to an embodiment of the invention in a sectional side view
- FIG. 3 shows a schematic representation of a generator arrangement in accordance with an embodiment of the invention.
- identical and functionally identical elements are provided with the same reference numerals.
- the electric machine 1 shows an electrical machine 1 according to the prior art in a sectional side view.
- the electric machine 1 comprises a stator 2, which has a winding. The present case, the end windings of the coil 4 to erken ⁇ nen.
- the electric machine 1 comprises a rotor 3 which can be rotated relative to the stator 2.
- the rotor 3 comprises a plurality of permanent magnet 5.
- the electric machine 1 can be configured as permanently excited Syn ⁇ chronmaschine.
- the electrical machine 1 is preferably used as a generator, in particular in a wind turbine ⁇ .
- the electric machine 1 further comprises a stator cooling ⁇ device 6, which serves to cool the stator 2. Vorlie ⁇ quietly the stator cooling device 6 comprises a water jacket cooling ⁇ 7, which surrounds the stator 2 circumferentially.
- the electric machine 1 comprises a rotor cooling device 8, which serves for cooling the rotor 3 and in particular for cooling the permanent magnets 5.
- the rotor cooling device 8 to present ⁇ summarizes two fan elements 9, which are non-rotatably connected to a shaft 10 of the electric machine. 1 By means of the fan elements 9, a cooling air flow for cooling the rotor 3 can be provided.
- the rotor ⁇ cooling device 8 summarizes a plurality of air guide elements 11 which serve for guiding the cooling air current.
- the cooling air flow is also passed through parts of the housing 12 of the electric machine 1.
- the cooling air flow is passed by the respective fan elements 9 to the end windings 4 of the stator 2 and parts of the stator 2 over.
- the cooling air flow is passed through a channel 14, in which case the cooling air flow in the Channel 14 is guided along the water cooling 7 and thus cooled.
- the cooling air current through the Ge ⁇ housing 12 and the air directing member 11 in the radial direction r of the electrical machine 1 and then deflected in the axial direction a of the electrical machine 1 is.
- the cooling air flow is again deflected in the radial direction r to the rotor 3 so that it meets a central region 15 of the rotor 3.
- the rotor 3 or a laminated core of the rotor 3 has a channel 16 which extends in the radial direction r.
- the cooling air flow is then guided outwards again in the axial direction a.
- the electric machine 1 has a cooling channel 17, through which the cooling air flow is guided in the axial direction a.
- this cooling channel 17 is formed by an air gap between the stator 2 and the rotor 3.
- a cooling passage for guiding the cooling air flow may be provided in axi ⁇ aler direction a.
- the rotor cooling device 8 has no cooler fan elements 9 which with the shaft 10 verbun ⁇ .
- the rotor cooling device 8 a fan 18, which in turn comprises a fan 19 and a fan motor 20.
- the rotor cooling device 8 comprises a recooler 21, which may be designed, for example, as a heat exchanger.
- the fan 18 and the recooler 21 are cooling means 23 of the rotor cooling device 8, with which the cooling air flow can be provided.
- the rotor cooling device 8 further comprises a control device 22, by means of which the fan motor 20 of the fan 18 can be controlled.
- the control device 22 For example, the fan motor 20 can be activated and deactivated. In this way, the volume flow of the cooling air flow can be influenced.
- a rotational speed of the fan motor 20 can be adjusted by means of the control device 22.
- the recooler 21 can be controlled by means of the control device 22. In this way, the cooling capacity, by means of which the cooling air flow is cooled by the recooler 21, can be influenced. Overall, the cooling air flow or the internal air can be influenced by the control of the fan 18 and / or the rear cooler 21.
- the cooling air flow is guided by the rotor 3 past the winding heads 4 to the recooler 21.
- the cooling air flow which has been heated by the rotor 3 can be cooled.
- corresponding air guide elements 11 are provided for guiding the cooling air flow to the recooler 21 .
- the cooling air flow reaches the fan 18 and is guided by the latter firstly in the axial direction a and then in the axial direction r along the housing 12. Thereafter, the cooling air flow - as explained previously in connection with FIG 1 - centrally on the rotor 3 to cool the rotor and in particular the permanent magnet 5.
- the cooling Leis ⁇ tung which is provided with the rotor cooling device 8, 1 regardless of the speed of the electric machine of the WEI direct the cooling performance of the rotor cooling device 8 largely independent of the stator cooling device 6.
- the heating of stator 2 and rotor 3 largely separated ge ⁇ controls.
- a possible ⁇ lichst good cooling for the stator 2 is generally desirable.
- the cooling of the rotor 3 by the rotor cooling device 8 can be controlled in dependence on the current temperature of the permanent magnets 5.
- the In ⁇ nenum poverty for cooling the permanent magnets 5 decreases advertising, when the permanent magnets 5 having the relatively low temperature or a temperature below a predetermined target temperature.
- this can be achieved by controlling the fan motor 20 by means of the control device 22 such that the fan motor 20 is deactivated or the rotational speed of the air motor 20 is reduced.
- the CON ⁇ er adopted 22 the recooler 21 controls such that the functionality provided by the recooler 21 and acting on the cooling air stream ⁇ cooling performance is reduced.
- the permanent magnets 5 become significantly hot during operation and thus the pole wheel voltage is reduced.
- Tem ⁇ these can be appropriately cooled by means of the rotor cooling device 8 to decorate losses reduced. These losses in the rotor 3 are essentially only dependent on the speed.
- the electric machine 1 can now be operated so that no critical overspeed can occur as long as the permanent magnets 5 have a relatively low temperature.
- the control device 22 can set the cooling power provided by the rotor cooling device 8 to that in dependence on the current temperature of the permanent magnet 5. For this purpose, the control device 22 can receive measured variables which determine the terminal voltage at the
- Stator 2 describe an electrical current flowing through the winding of the stator 2 and / or the rotational speed of the rotor 3. These measured variables can be determined and / or measured and transmitted to the control device 22. Toggle handle of these measures can then based on a model, the current temperature of the permanent magnets 5 determines who ⁇ . Alternatively, a temperature sensor may be used to increase the actual temperature of the permanent magnets 5 determine. By reducing the force applied by the rotor cooling device 8 cooling capacity, the permanent magnets 5 can be heated and the electrical machine 1 can be ⁇ be exaggerated that can occur over high speeds.
- FIG. 3 shows a schematic representation of a generator arrangement 24.
- the generator arrangement 24 comprises the electric machine 1, the electric machine 1 or the stator 2 comprising the terminals A, B and C.
- an AC voltage can be tapped at the terminals A, B, C in each case.
- the electric machine 1 is ver ⁇ connected with the rectifier 25, which serves to rectify the AC voltages.
- the rectifier 25 is designed as a bridge rectifier and comprises six diodes 27.
- the rectifier 25 is part of a converter device 26, which may further comprise an inverter, by means of which the DC voltage at the output of the rectifier 24 can be converted into a mains voltage with a mains frequency. Thus, the mains voltage can be fed into a power grid.
- the generator arrangement 24 comprises the device 29, by means of which the rotational speed of the rotor 3 can be detected.
- the generator assembly 24 comprises three condensers ⁇ ren 28 wherein one of the capacitors 28 between two terminals A, B, C is connected in each case. By the capacitors 28, a compensation of the reactive power and an increase in the overturning moment can be achieved.
- the generator assembly 24 according to the invention or the electric machine 1 according to the invention can be used in particular for wind power plants. Here can occur as a result of gusts overspeed.
- the independent rotor cooling device 8 can be prevented that the permanent magnets 5 have a too low temperature and thus high pole wheel stresses occur. This damage to the gelichrichters 25 can be prevented.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17154962.9A EP3358725A1 (de) | 2017-02-07 | 2017-02-07 | Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage |
PCT/EP2018/050415 WO2018145841A1 (de) | 2017-02-07 | 2018-01-09 | Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3563471A1 true EP3563471A1 (de) | 2019-11-06 |
Family
ID=57984849
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17154962.9A Withdrawn EP3358725A1 (de) | 2017-02-07 | 2017-02-07 | Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage |
EP18703204.0A Pending EP3563471A1 (de) | 2017-02-07 | 2018-01-09 | Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17154962.9A Withdrawn EP3358725A1 (de) | 2017-02-07 | 2017-02-07 | Elektrische maschine mit unabhängiger rotorkühlvorrichtung, generatoranordnung sowie windkraftanlage |
Country Status (4)
Country | Link |
---|---|
US (1) | US11371488B2 (de) |
EP (2) | EP3358725A1 (de) |
CN (1) | CN110268607A (de) |
WO (1) | WO2018145841A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102017107897A1 (de) * | 2017-04-12 | 2018-10-18 | Wobben Properties Gmbh | Verfahren zum Kühlen einer getriebelosen Windenergieanlage |
CN111677632B (zh) * | 2020-06-17 | 2022-02-08 | 上海电气风电集团股份有限公司 | 风力发电机及包括其的风力发电机组 |
CN111677631B (zh) * | 2020-06-17 | 2022-02-08 | 上海电气风电集团股份有限公司 | 风力发电机及包括其的风力发电机组 |
DE102021200283A1 (de) * | 2021-01-14 | 2022-07-14 | Zf Friedrichshafen Ag | Elektrische Maschine |
EP4064555A1 (de) | 2021-03-25 | 2022-09-28 | Wobben Properties GmbH | Windenergieanlage und verfahren zum steuern einer windenergieanlage |
US20230019118A1 (en) * | 2021-07-15 | 2023-01-19 | Daniel R. Luedtke | Vehicle electric motor temperature estimation using neural network model |
CN113799596A (zh) * | 2021-10-14 | 2021-12-17 | 湖南道依茨动力有限公司 | 集成发电的冷却组件和车辆 |
CN116045450A (zh) * | 2022-12-22 | 2023-05-02 | 珠海格力电器股份有限公司 | 一种空调的控制方法、装置、空调和存储介质 |
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DE19919040C2 (de) * | 1999-02-25 | 2002-06-20 | Helmuth Beneke | Synchronmaschine oder Asychronmaschine für große Windenergieanlagen |
EP1032113A1 (de) * | 1999-02-25 | 2000-08-30 | Lloyd Dynamowerke Gmbh | Kühlung für eine Elektromaschine, insbesondere Drehfeldmaschine |
DE10052427A1 (de) * | 2000-10-23 | 2002-05-02 | Alstom Switzerland Ltd | Schnelllaufende elektrische Maschine |
DE10246690A1 (de) * | 2002-10-07 | 2004-04-22 | Siemens Ag | Belüftungssystem für Generatoren in Windkraftanlagen |
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JP4290461B2 (ja) | 2003-04-03 | 2009-07-08 | 株式会社日立製作所 | 電動装置の冷却システムおよび冷却制御方法 |
DE102007021723B4 (de) * | 2007-05-09 | 2009-09-17 | Siemens Ag | Luftgekühlte rotierende elektrische Maschine |
DE202007017167U1 (de) | 2007-12-08 | 2009-04-16 | Tehalit Gmbh | Gerätehalterung zur universellen Befestigung von Installationsgeräten und Vorrichtungen an Leitungsführungskanälen |
US7755230B2 (en) | 2008-02-06 | 2010-07-13 | Hitachi, Ltd. | Rotary electric machine having cooling device and electric generating system including the machine |
DE602008001366D1 (de) * | 2008-02-07 | 2010-07-08 | Hitachi Ltd | Drehende elektrische Maschine |
JP5358667B2 (ja) * | 2009-02-27 | 2013-12-04 | 株式会社日立製作所 | 永久磁石式発電機 |
GB2491544A (en) | 2011-03-17 | 2012-12-05 | Mehdi Kalludra | Perpetum mobile |
US9118232B2 (en) * | 2011-12-29 | 2015-08-25 | Qubo Li | Electric machine cooling system |
EP2741392A3 (de) * | 2012-12-04 | 2016-12-14 | ABB Research Ltd. | Systeme und Verfahren zur Verwendung eines aktiven Kompensators zur Verstärkung eines Diodengleichrichters |
DE102012112851A1 (de) * | 2012-12-21 | 2014-06-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektromaschine |
EP2757666B1 (de) * | 2013-01-17 | 2015-06-24 | Siemens Aktiengesellschaft | Verbesserte Kühlung einer elektrischen Maschine |
-
2017
- 2017-02-07 EP EP17154962.9A patent/EP3358725A1/de not_active Withdrawn
-
2018
- 2018-01-09 WO PCT/EP2018/050415 patent/WO2018145841A1/de active Search and Examination
- 2018-01-09 US US16/484,022 patent/US11371488B2/en active Active
- 2018-01-09 CN CN201880010456.2A patent/CN110268607A/zh active Pending
- 2018-01-09 EP EP18703204.0A patent/EP3563471A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
US11371488B2 (en) | 2022-06-28 |
EP3358725A1 (de) | 2018-08-08 |
US20190390657A1 (en) | 2019-12-26 |
CN110268607A (zh) | 2019-09-20 |
WO2018145841A1 (de) | 2018-08-16 |
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