US20130056173A1 - Wind power plant - Google Patents

Wind power plant Download PDF

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Publication number
US20130056173A1
US20130056173A1 US13/521,038 US201113521038A US2013056173A1 US 20130056173 A1 US20130056173 A1 US 20130056173A1 US 201113521038 A US201113521038 A US 201113521038A US 2013056173 A1 US2013056173 A1 US 2013056173A1
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United States
Prior art keywords
heat exchanger
pod
wind power
power installation
installation according
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.)
Abandoned
Application number
US13/521,038
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English (en)
Inventor
Jochen Röer
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to ALOYS WOBBEN reassignment ALOYS WOBBEN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROER, JOCHEN
Publication of US20130056173A1 publication Critical patent/US20130056173A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • 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
    • F03D80/80—Arrangement of components within nacelles or towers
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F05B2260/232—Heat transfer, e.g. cooling characterised by the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • F05B2260/64—Aeration, ventilation, dehumidification or moisture removal of closed spaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention concerns a wind power installation comprising a pod with at least one fluid-cooled component and a heat exchanger.
  • Such wind power installations are known in large numbers in the state of the art.
  • Wind power installations with different pod shapes are also known.
  • substantially rectangular or box-shaped pods, sometimes called gondolas are represented as well as cylindrical pods and pods approximating to a drop shape.
  • a heat exchanger must be able to give off the heat to be dissipated to the environment in order to be able to perform its function, it is usual to arrange it on the top side of the pod in wind power installations. That is effected for example when erecting a wind power installation on the building site so that the heat exchanger arranged on the pod does not cause difficulties in transporting and handling the pod or so that it cannot be damaged in that case. Therefore the heat exchanger is usually fitted in place during erection of the wind power installation on the building site. In that case however a wide range of different mounting errors can occur, which adversely affect satisfactory functioning of the heat exchanger.
  • the object of the present invention is to simplify transport and construction of a wind power installation having a heat exchanger and thus to eliminate or at least reduce sources of error.
  • the object of the invention is attained by a wind power installation as set forth in claim 1 .
  • a wind power installation comprising a pod having at least one fluid-cooled component and a heat exchanger.
  • the heat exchanger is integrated into the external contour of the pod.
  • the heat exchanger has at least one ribbed tube.
  • the heat exchanger is formed from a ribbed tube which at least partially is continuously wound.
  • the heat exchanger has a plurality of ribbed tubes arranged in parallel relationship.
  • the heat exchanger is arranged on a carrier.
  • the carrier is in the form of a peripherally extending opening in the contour of the pod.
  • the carrier is in the form of a separate pod component.
  • the wind power installation in the direction of a longitudinal axis of the pod, has a hold-down means which holds the ribbed tube in its installation position.
  • the wind power installation has a fan arranged in such a way that the air that it draws in flows around the heat exchanger.
  • the present invention is based on the realization that when transporting and handling the pod, there is no need for any alterations worth mentioning, at the same time however the heat exchanger can also be installed upon assembly of the pod in the factory and can be tested for satisfactory functioning. That leads to a simplification in transporting and constructing the wind power installation and at the same time eliminates possible error sources.
  • the heat exchanger can be formed from at least one ribbed tube.
  • a ribbed tube can be easily bent in such a way that it follows the contour of the pod and can therefore be well adapted to the pod contour.
  • a high level of reliability is afforded if the heat exchanger is formed from a continuously wound ribbed tube because then it is possible to eliminate connecting locations and thus possible error locations at which for example leaks can occur.
  • the heat exchanger can also be formed from a plurality of ribbed tubes arranged in parallel relationship, thus affording a larger available cross-section in which the cooling fluid can be cooled.
  • the heat exchanger is arranged on a carrier.
  • heat exchanger can be pre-produced in the form of a structural unit and mounted in the form of an attachment component to the pod.
  • functional testing can for example already be effected before it is attached to the pod so that a reliable heat exchanger is certain to be available when the pod is assembled.
  • the carrier can be in the form of a peripherally extending opening in the contour of the pod. It is possible in that way to avoid sources of error when attaching the separately produced cooler, such as for example incorrect positioning, damage caused by failure to pay proper attention during transport, and so forth.
  • hold-down means which are distributed over the periphery of the heat exchanger and arranged substantially in the direction of the longitudinal axis of the pod.
  • a fan so arranged that the air drawn in thereby flows around the heat exchanger. That provides an active heat exchanger and a defined level of cooling efficiency for the heat exchanger.
  • FIG. 1 shows a simplified view of a wind power installation
  • FIG. 2 shows a view on an enlarged scale of the pod of the wind power installation of FIG. 1 ,
  • FIG. 3 shows a side view of a heat exchanger according to the invention in the form of an attachment component
  • FIG. 4 shows a plan view of a heat exchanger according to the invention.
  • FIG. 5 shows a perspective view of the heat exchanger with the flow configuration of the cooling air sucked in by the fan.
  • FIG. 1 shows a greatly simplified view of a wind power installation 10 .
  • the pylon 12 carries the pod 16 (alternatively the term machine housing or gondola can also be used for the pod).
  • the pod 16 is mounted on a head of the pylon 12 by means of an azimuth bearing (not shown) so that it is possible to provide wind direction tracking by way of azimuth drives (also not shown).
  • the transition between the pod 16 and the pylon 12 is covered by a pod skirt 14 and is thus protected from the influences of weather.
  • the pod 16 also includes the hub to which the rotor blades 24 are mounted.
  • the hub (with the front part of the pod 16 ) is caused to rotate by the rotor blades 24 .
  • the rotary movement is transmitted to the rotor of the generator so that the wind power installation 10 generates electrical energy when there is a sufficient wind speed.
  • FIG. 2 shows a more detailed view of the pod 16 of the wind power installation of FIG. 1 .
  • the pod has a pod skirt 14 which covers over the transition from the pod 16 to the pylon (not shown in this Figure).
  • the pod 16 has a front pod part 18 and a rear pod part 22 .
  • the generator 20 can be disposed between those two pod parts.
  • the generator 20 can optionally be in the form of a ring generator.
  • Rotor blade domes 26 with blade enlargement portions can be provided on the front pod part 18 .
  • the respective rotor blade roots of the rotor blades (not shown in this Figure) can be guided into those rotor blade domes 26 and fastened to the rotor hub which transmits the rotary movement by way of a transmission or also directly, without a transmission, to the rotor as the rotary part of the generator 20 (not shown in this Figure).
  • the electrical energy generated when there is a sufficient wind speed is generated in the generator 20 and depending on the respective concept of the wind power installation can be fed by way of a transformer (not shown) for example directly into the network or can be converted into a direct current by way of rectifiers (also not shown) and then fed into the network again by way of inverters at a suitable frequency and phase position.
  • a part of those described components can be disposed in the pod 16 .
  • heat due to energy losses is produced, which has to be dissipated by cooling. That cooling can involve air cooling; it can however also use a cooling fluid such as for example water. It is precisely when a high thermal loading is involved that air cooling may be inadequate and fluid cooling can be required.
  • the generator 20 can have a generator cooling connection 30 from which a connection 32 is taken to the heat exchanger 28 at one side of the pod (at the right in the Figure).
  • the cooling fluid flows through the generator cooling connection 30 , the connection 32 and through the heat exchanger 28 .
  • the heat exchanger 28 is once again exposed to the flow of air and is of a sufficiently large surface area to reliably implement the required dissipation of heat so that the correspondingly cooled cooling fluid can again be fed to the generator in order to continue to reliably dissipate the heat due to energy losses.
  • the heat exchanger 28 which in the present example is formed from ribbed tubes 34 is fitted into or on to the contour of the pod 16 so that the aerodynamically favorable shape of the pod 16 is not detrimentally altered by the heat exchanger 28 .
  • the heat exchanger thus replaces a part of the pod and is matched to the shape thereof so that the original shape of the pod is maintained to achieve an as aerodynamic shape as possible.
  • the heat exchanger can be provided at the end of the pod, opposite to the rotor 18 , and can be of a dome-shaped configuration.
  • the heat exchanger can be at least partially oval or elliptical in cross-section.
  • the heat exchanger can be of a cap-shaped configuration. That provides for adequate cooling of the cooling fluid utilizing the advantageous shape of the pod 16 .
  • the heat exchanger can also be of an elliptical external contour.
  • FIG. 3 shows a heat exchanger 28 according to the invention in the form of a separate attachment component.
  • That heat exchanger according to the invention has ribbed tubes 34 which are wound on to a carrier in such a way that the external contour is a continuation of the pod contour, that is substantially true to the shape thereof, that is to say the contour of the heat exchanger is oval (in cross-section), dome-shaped or cap-shaped. So that the ribbed tubes 34 remain in position there are provided hold-down means 36 which hold the ribbed tubes 34 in the predetermined position.
  • a fan 38 can be arranged downstream of the ribbed tubes 34 in the flow direction, the fan 38 drawing in air in such a way that it flows over the ribbed tubes 34 and thus the excess heat can be dissipated.
  • FIG. 3 shows a side view of an embodiment by way of example of a heat exchanger according to the invention
  • FIG. 4 shows a rear view, that is to say a view on to the heat exchanger 28 , as is represented from the rear side of the pod. It will be noted in this respect however that, as in FIG. 3 , the pod is not shown. It is possible to clearly see in FIG. 4 the ribbed tubes 34 , the hold-down means 36 and the fan 38 . FIG. 4 also clearly shows a connecting box 40 to which all ribbed tubes 34 are connected.
  • connecting box 40 the cooling fluid can flow simultaneously through all ribbed tubes 34 so as to provide a sufficiently large flow cross-section to dissipate the required amount of heat to the ambient air by way of the heat exchanger 28 .
  • the connecting box 40 is connected by way of a connection (not shown here) to the components to be cooled in the pod of the wind power installation.
  • FIG. 5 shows a perspective view, once again without the pod of the wind power installation.
  • the ribbed tubes 34 extend from the connecting box 40 so that the cooling fluid can simultaneously flow through them to be able to provide the required cooling efficiency.
  • the fan 38 is again arranged at the end of the heat exchanger 28 and is provided with a cover 44 which allows the air flow 42 to be better guided.
  • the fan 38 When the fan 38 is set in operation it produces a flow of the ambient air over the surface of the ribbed tubes 34 in the direction indicated by arrows 42 so that active cooling can be implemented with that heat exchanger 28 according to the invention to dissipate the waste heat to the ambient air.
  • the external appearance of the wind power installation is at most slightly influenced, but is substantially retained. Accordingly the flow conditions at the pod are also substantially retained and at the same time an adequate cooling effect on the part of the heat exchanger 28 is achieved.
  • the heat exchanger would be rectangular in shape and will match the shape and cross-section of the pod at the rear end.
  • the tubes 34 will be in a shape that bends, at some places, and may have corners, as one example.
  • the goal is to have a matching shape to that of the rear of the pod where they are coupled so that the heat exchanger can easily be added at the end of the pod either at the factory where the pod is built or later if desired. Even though it has some shape as the rear of the pod where it coupled, it can narrow down to change shape of the length of the heat exchanger as it extends backward.
US13/521,038 2010-01-08 2011-01-10 Wind power plant Abandoned US20130056173A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010000756.0 2010-01-08
DE102010000756A DE102010000756A1 (de) 2010-01-08 2010-01-08 Windenergieanlage
PCT/EP2011/050202 WO2011083156A2 (de) 2010-01-08 2011-01-10 Windenergieanlage

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US20130056173A1 true US20130056173A1 (en) 2013-03-07

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US13/521,038 Abandoned US20130056173A1 (en) 2010-01-08 2011-01-10 Wind power plant

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US (1) US20130056173A1 (da)
EP (1) EP2521859B1 (da)
JP (1) JP5711763B2 (da)
KR (1) KR101391502B1 (da)
CN (1) CN102713274B (da)
AR (1) AR081273A1 (da)
AU (1) AU2011204560B2 (da)
BR (1) BR112012015990B1 (da)
CA (1) CA2783445C (da)
CL (1) CL2012001816A1 (da)
CY (1) CY1117669T1 (da)
DE (1) DE102010000756A1 (da)
DK (1) DK2521859T3 (da)
EA (1) EA023869B1 (da)
ES (1) ES2573650T3 (da)
HR (1) HRP20160788T1 (da)
HU (1) HUE029605T2 (da)
IN (1) IN2012DN05151A (da)
MX (1) MX2012007543A (da)
NZ (1) NZ600615A (da)
PL (1) PL2521859T3 (da)
PT (1) PT2521859T (da)
RS (1) RS54828B1 (da)
SI (1) SI2521859T1 (da)
TW (1) TWI486521B (da)
WO (1) WO2011083156A2 (da)
ZA (1) ZA201204326B (da)

Cited By (2)

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US20150016976A1 (en) * 2011-12-21 2015-01-15 Wobben Properties Gmbh Wind turbine nacelle
WO2022001691A1 (zh) * 2020-06-28 2022-01-06 上海海事大学 用于风力发电机的鲨鱼鳃式叶片减阻结构、叶片及制造方法

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JP5864307B2 (ja) * 2012-03-02 2016-02-17 株式会社日立製作所 ダウンウィンドロータ型風力発電装置
TWI486523B (zh) 2012-11-30 2015-06-01 Ind Tech Res Inst 應用於一風力發電機之輪轂冷卻裝置
DE102016111332B3 (de) * 2016-06-21 2017-06-29 Aerodyn Engineering Gmbh Modular aufgebaute Windenergieanlage
CN107313894B (zh) * 2017-08-30 2019-05-28 广州市风力新能源科技有限公司 一种小型风力发电系统
EP4015818A1 (de) 2020-12-18 2022-06-22 Wobben Properties GmbH Windenergieanlage

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US6278197B1 (en) * 2000-02-05 2001-08-21 Kari Appa Contra-rotating wind turbine system
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CA2756953A1 (en) * 2010-11-04 2012-05-04 Siemens Aktiengesellschaft Welded manifold for a stator housing segment

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US20150016976A1 (en) * 2011-12-21 2015-01-15 Wobben Properties Gmbh Wind turbine nacelle
US9394887B2 (en) * 2011-12-21 2016-07-19 Wobben Properties Gmbh Wind turbine nacelle
WO2022001691A1 (zh) * 2020-06-28 2022-01-06 上海海事大学 用于风力发电机的鲨鱼鳃式叶片减阻结构、叶片及制造方法

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CA2783445C (en) 2014-11-25
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