DE102007016577A1 - Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct - Google Patents
Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct Download PDFInfo
- Publication number
- DE102007016577A1 DE102007016577A1 DE102007016577A DE102007016577A DE102007016577A1 DE 102007016577 A1 DE102007016577 A1 DE 102007016577A1 DE 102007016577 A DE102007016577 A DE 102007016577A DE 102007016577 A DE102007016577 A DE 102007016577A DE 102007016577 A1 DE102007016577 A1 DE 102007016577A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- cooling device
- storage battery
- wind turbine
- rotor hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims description 22
- 230000001419 dependent effect Effects 0.000 claims description 2
- 206010063493 Premature ageing Diseases 0.000 description 3
- 208000032038 Premature aging Diseases 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
Classifications
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- 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
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (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)
- Wind Motors (AREA)
Abstract
Description
Die Erfindung betrifft eine Windenergieanlage gemäß dem Oberbegriff des Patentanspruches 1.The The invention relates to a wind turbine according to Preamble of claim 1.
Bei Windenergieanlagen wird die Strömungsenergie des Windes über einen Rotor in nutzbare Rotationsenergie umgewandelt. Der Anstellwinkel (Pitch-Winkel) der Rotorblätter zum Wind wird hierzu über einen mechanischen Blattverstellmechanismus in Abhängigkeit von der Windstärke eingestellt, um die Windkraft optimal auszunutzen und die Rotorblätter bei zu starkem Wind in eine Fahnenstellung, d. h. in eine Sicherheitsstellung, bei der die Anlage aerodynamisch abgebremst wird, zu bringen, so dass Überlastschäden an der Windkraftanlage aufgrund einer unzulässig hohen Drehzahl des Rotors vermieden werden. Aus Sicherheitsgründen verfügt häufig jedes einzelne Rotorblatt über einen eigenen Verstellantrieb, so dass eine hinreichende Drehzahlbegrenzung auch dann erreicht wird, wenn einer der Verstellantriebe ausfallen sollte. Da es auch bei einem Ausfall des Stromnetzes möglich sein muss, die Rotorblätter in ihre Fahnenstellung zu bringen, ist dem oder den Verstellmotor(en) eine Notstromversorgung zugeordnet, die im Störfall aktiviert wird.at Wind turbines will overflow the flow energy of the wind converted a rotor into usable rotational energy. The angle of attack (Pitch angle) of the rotor blades to the wind is over a mechanical Blattverstellmechanismus depending adjusted by the wind force to optimize the wind power exploit and the rotor blades in too strong wind in a flag position, d. H. in a safety position in which the system is aerodynamically braked, bringing it over so that overload damage at the wind turbine due to an inadmissibly high Speed of the rotor can be avoided. For safety reasons often has every single rotor blade over Its own adjustment, so that a sufficient speed limit is reached even if one of the adjusting drives fail should. As it is possible even in the event of a power failure must be to bring the rotor blades in their flag position, is assigned to the one or more adjusting motor (s) an emergency power supply, which is activated in the event of a fault.
Aus
der
Beim Betrieb der Windenergieanlage können aufgrund der Strahlungsenergie der Sonne, der Abwärme der Stellmotoren und der Regelelektronik Temperaturen bis zu mehr als 70°C auftreten, wodurch die Lebensdauer der Akkumulatoren gegenüber einem Betrieb bei Raumtemperatur wesentlich verkürzt wird. Dies gilt insbesondere für Li-Ion-Akkumulatoren, so dass diese zur Gewährleistung der Betriebssicherheit innerhalb vergleichsweise kurzer Zyklen ausgewechselt werden müssen.At the Operation of the wind turbine can due to the radiation energy the sun, the waste heat of the servomotors and the control electronics temperatures up to more than 70 ° C occur, reducing the life the accumulators against operation at room temperature is significantly shortened. This is especially true for Li-ion batteries, so that these are guaranteed the reliability changed within comparatively short cycles Need to become.
Demgegenüber liegt der Erfindung die Aufgabe zugrunde, die Betriebssicherheit einer Windenergieanlage zu verbessern.In contrast, The invention is based on the object, the reliability to improve a wind turbine.
Diese Aufgabe wird durch eine Windenergieanlage mit den Merkmalen des Patentanspruches 1 gelöst.These Task is accomplished by a wind energy plant with the characteristics of the Claim 1 solved.
Erfindungsgemäß hat die Windenergieanlage einen an einer Gondel gelagerten Rotor, dessen Rotorblätter mittels eines Rotorblattverstellantriebs verstellbar sind. Diese sind im Fall eines Stromausfalls über zumindest einen Akkumulator mit Energie versorgbar. Der Akkumulator ist im Bereich einer Rotornabe angeordnet und wird erfindungsgemäß durch eine Kühleinrichtung gekühlt, so dass die Akkumulatorentemperatur in einem unkritischen Arbeitsbereich von beispielsweise weniger als 40°C gehalten werden kann. Auf diese Weise kann eine vorzeitige Alterung der Batteriezellen verhindert werden, so dass die Betriebssicherheit auch ohne Austausch des Akkumulators über lange Zeit gewährleistet ist.Has according to the invention the wind turbine a mounted on a nacelle rotor, the rotor blades are adjustable by means of a Rotorblattverstellantriebs. These are in the case of a power failure via at least one accumulator be supplied with energy. The accumulator is in the range of a rotor hub arranged and is inventively by a Cooling device cooled, so that the battery temperature in a non-critical workspace of, for example, less can be kept as 40 ° C. This way a can premature aging of the battery cells are prevented, so that the operational safety even without replacement of the accumulator over is guaranteed for a long time.
Bei einem besonders einfach ausgeführten Ausführungsbeispiel ist die Kühleinrichtung als Wärmetauscher mit Konvektionskühlung ausgeführt, wobei die beim Betrieb der Windenergieanlage entstehende Luftströmung zur Kühlung des Rotornabeninnenraums ausgenutzt wird.at a particularly simple embodiment is the cooling device as a heat exchanger with Convection cooling performed, the at Operation of the wind turbine resulting air flow is used for cooling the rotor hub interior.
Dabei wird es besonders bevorzugt, wenn die Kühleinrichtung mit zumindest einem Lüftungsrohr ausgeführt ist, das die Rotornabe oder daran angrenzende Bereiche durchsetzt und aufgrund der von den Rotoren erzeugten Luftströmung von einem Kühlluftstrom durchströmbar ist. Dieser Kühlluftstrom steht in Wärmeaustausch mit der im Inneren der Rotornabe vorhandenen, den Akkumulator umgebenden Luft, so dass diese gekühlt wird.there It is particularly preferred if the cooling device with at least one ventilation pipe is executed, the the rotor hub or adjacent areas interspersed and due the air flow generated by the rotors of a cooling air flow can be flowed through. This cooling air flow is in heat exchange with the one inside the rotor hub, the air surrounding the accumulator so that these are cooled becomes.
Zur Verbesserung des Wärmeaustausches kann das Lüftungsrohr mit einer Vielzahl von Kühlrippen versehen sein, die vorzugsweise in den Nabeninnenraum hineinragen.to Improvement of the heat exchange can be the ventilation pipe be provided with a plurality of cooling fins, preferably protrude into the hub interior.
Um eine Unterkühlung des Akkumulators bei niedrigen Umgebungstemperaturen zu vermeiden, kann das Lüftungsrohr mit Schließklappen versehen sein, die Eintritts- und Austrittsöffnungen temperaturabhängig verschließen.Around a hypothermia of the accumulator at low ambient temperatures To avoid, the ventilation pipe can with closing flaps be provided, the inlet and outlet openings depending on temperature close.
Bei einem Ausführungsbeispiel der Erfindung erstreckt sich das zumindest eine Lüftungsrohr quer zur Rotorachse, so dass die Eintritts- und Austrittsöffnungen etwa radial im Umfangsmantel der Rotornabe münden.at An embodiment of the invention extends the at least one ventilation pipe transversely to the rotor axis, so that the inlet and outlet openings are approximately radially open in the circumferential shell of the rotor hub.
Sonstige vorteilhafte Weiterbildungen der Erfindung sind Gegenstand weiterer Unteransprüche.other advantageous developments of the invention are the subject of further Dependent claims.
Im Folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand schematischer Zeichnungen näher erläutert. Es zeigen:in the Below is a preferred embodiment of Invention explained in more detail with reference to schematic drawings. Show it:
In
An
der Gondel
Wie
eingangs beschrieben, können im Inneren der Rotornabe
Gemäß
Selbstverständlich
können zur Optimierung der Kühlung mehrere Lüftungsrohre
Um
zu verhindern, dass der Nabeninnenraum bei niedrigen Außentemperaturen
zu sehr gekühlt wird, können die Eintritts- und
die Austrittsöffnungen
Offenbart ist eine Windenergieanlage, bei der an einer Gondel ein Rotor mit verstellbaren Rotorblättern gelagert ist. Zur unterbrechungsfreien Stromversorgung (USV) der Rotorblattverstellantriebe ist in der Rotornabe ein Akkumulator vorgesehen. Dieser ist erfindungsgemäß gekühlt, so dass dessen vorzeitige Alterung verhinderbar ist.Disclosed is a wind turbine, in which a gondola with a rotor is mounted adjustable rotor blades. For uninterruptible power supply (UPS) of the rotor blade pitch drives is an accumulator in the rotor hub intended. This is cooled according to the invention, so that its premature aging is preventable.
- 11
- WindenergieanlageWind turbine
- 22
- Fundamentfoundation
- 44
- Turmtower
- 66
- Gondelgondola
- 88th
- WindnachführungYaw
- 1010
- Rotorrotor
- 1212
- Rotornaberotor hub
- 1414
- Rotorblattrotor blade
- 1616
- Netzanschlussmains connection
- 1818
- Akku-PackBattery Pack
- 2020
- Antriebswelledrive shaft
- 2222
- Getriebetransmission
- 2424
- Abtriebswelleoutput shaft
- 2626
- Generatorgenerator
- 2828
- Lüftungsrohrventilation pipe
- 3030
- Achseaxis
- 3232
- Eintrittsöffnunginlet opening
- 3434
- Austrittsöffnungoutlet opening
- 3636
- Kühlrippecooling fin
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 29722109 U1 [0003] DE 29722109 U1 [0003]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007016577A DE102007016577A1 (en) | 2007-04-07 | 2007-04-07 | Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007016577A DE102007016577A1 (en) | 2007-04-07 | 2007-04-07 | Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007016577A1 true DE102007016577A1 (en) | 2008-10-09 |
Family
ID=39736236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007016577A Withdrawn DE102007016577A1 (en) | 2007-04-07 | 2007-04-07 | Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007016577A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106968889A (en) * | 2017-05-09 | 2017-07-21 | 四川力垦锂动力科技有限公司 | The wind power plant of wind energy is stored for lithium battery |
EP4382745A1 (en) * | 2022-12-08 | 2024-06-12 | Wobben Properties GmbH | Wind turbine and method for controlling a wind turbine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29722109U1 (en) | 1997-12-16 | 1998-03-26 | aerodyn Engineering GmbH, 24768 Rendsburg | Wind turbine |
-
2007
- 2007-04-07 DE DE102007016577A patent/DE102007016577A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29722109U1 (en) | 1997-12-16 | 1998-03-26 | aerodyn Engineering GmbH, 24768 Rendsburg | Wind turbine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106968889A (en) * | 2017-05-09 | 2017-07-21 | 四川力垦锂动力科技有限公司 | The wind power plant of wind energy is stored for lithium battery |
EP4382745A1 (en) * | 2022-12-08 | 2024-06-12 | Wobben Properties GmbH | Wind turbine and method for controlling a wind turbine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8047774B2 (en) | System for heating and cooling wind turbine components | |
EP1747365B1 (en) | Wind power installation having an auxiliary generator and method for the control thereof | |
EP2351191B1 (en) | Ring generator | |
DE10000370B4 (en) | Wind energy plant with a closed cooling circuit | |
EP2635804B1 (en) | Wind power plant | |
EP2447524A1 (en) | Wind turbine pitch assembly enclosure system | |
DE19717059C1 (en) | Method for parking rotor blades of windmill when wind speed is high | |
DE102012204239A1 (en) | Method for controlling a wind energy plant | |
EP2636131B1 (en) | Wind energy installation having a synchronous generator, and slowly rotating synchronous generator | |
DE102008057776A1 (en) | Method for operating a wind turbine and wind power plant | |
EP2000668A1 (en) | Wind turbine tower with passive cooling | |
MX2013002522A (en) | Vehicle wind turbine. | |
EP3645869A1 (en) | Vertical wind turbine comprising a coaxial pitch motor, kit for same, and method for operating same | |
EP3645870B1 (en) | Vertical wind turbine comprising pitch motor with protruding rotor blades, kit for same, and method for operating same | |
EP2140136B1 (en) | Wind power plant | |
US20150260155A1 (en) | Wind turbine generator | |
DE202007010984U1 (en) | Energy generator | |
DE102007015301A1 (en) | Wind turbine with a heat pump | |
DE3202884A1 (en) | Wind wheel generator | |
DE102007016577A1 (en) | Wind energy plant, has storage battery arranged in region of rotor hub and cooled by cooling device, so that storage battery temperature is held in uncritical operating range, and cooling device with air duct | |
WO2019002922A1 (en) | Vertical wind turbine with regulated tip-speed ratio behavior, kit for same, and method for operating same | |
DE102007016023A1 (en) | Actuating drive for rotor blade of wind power plant, has electro-chemical or electrostatic energy storage accommodating electric motor in case of failure of power supply and provided with electrically drivable heat dissipation device | |
DE102012015171B3 (en) | Highly efficient wind energy system installed in e.g. building roof, has radiator that is provided in cooling water circuit and arranged at side facing wind distributor, and circulating pump that is directly connected with wind turbine | |
DE202004009071U1 (en) | Wind power unit especially for offshore operation has auxiliary generator to supply a user when vane is in rolling position or in emergency | |
DE102011103311A1 (en) | Wind energy plant with closed cooling circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20121101 |