DE102007016023A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- DE102007016023A1 DE102007016023A1 DE102007016023A DE102007016023A DE102007016023A1 DE 102007016023 A1 DE102007016023 A1 DE 102007016023A1 DE 102007016023 A DE102007016023 A DE 102007016023A DE 102007016023 A DE102007016023 A DE 102007016023A DE 102007016023 A1 DE102007016023 A1 DE 102007016023A1
- Authority
- DE
- Germany
- Prior art keywords
- dissipation device
- electric motor
- actuator according
- heat dissipation
- energy storage
- 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- Withdrawn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
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 8
- 238000004146 energy storage Methods 0.000 title abstract description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 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
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 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
- 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
-
- 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
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/79—Bearing, support or actuation arrangements therefor
-
- 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
- F05B2270/10—Purpose of the control system
- F05B2270/107—Purpose of the control system to cope with emergencies
- F05B2270/1074—Purpose of the control system to cope with emergencies by using back-up controls
-
- 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)
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
Description
Die Erfindung betrifft einen Stellantrieb für ein Rotorblatt einer Windkraftanlage gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to an actuator for a rotor blade a wind turbine according to the preamble of Patent claim 1.
Windkraftanlagen hoher Leistung sind fast ausnahmslos mit verstellbaren Rotorblättern ausgestattet. Dadurch lässt sich die Leistung der Windkraftanlage der Windgeschwindigkeit anpassen und bei hohen Windgeschwindigkeiten gegebenenfalls begrenzen. Bei Gefahr einer Überlastung durch starken Wind bzw. um die Anlage außer Betrieb zu nehmen, werden die Rotorblätter in eine so genannte Fahnenstellung gedreht, bei der kein antreibender Auftrieb am Rotorblatt entsteht. Zum Teil genügt es, ein Rotorblatt in die Fahnenstellung zu bringen, um die Windkraftanlage abzubremsen. Vorzugsweise werden alle Rotorblätter aus dem Wind gedreht.Wind turbines high performance are almost invariably with adjustable rotor blades fitted. This allows the performance of the wind turbine adapt to the wind speed and at high wind speeds if necessary limit. At risk of overloading due to strong wind or around the plant out of service too take the rotor blades in a so-called flag position rotated, which produces no driving buoyancy on the rotor blade. In some cases, it is sufficient to have a rotor blade in the feathering position to bring down the wind turbine. Preferably all rotor blades turned out of the wind.
Üblicherweise ist jedes Rotorblatt mit einem eigenen Verstellantrieb, einem so genannten Pitch-Antrieb versehen, der in der Rotornabe angeordnet ist. Für den Pitch-Antrieb wird meist ein elektrischer Antrieb verwendet. Bei einem Ausfall des Stromnetzes muss jedoch sichergestellt sein, dass die Rotorblätter weiterhin verstellbar sind und nötigenfalls in die Fahnenstellung gedreht werden können. Daher werden Akkumulatoren bereitgestellt, die bei einem Ausfall des Stromnetzes die zur Verstellung benötigte elektrische Energie bereitstellen.Usually is each rotor blade with its own adjustment, so one provided pitch drive disposed in the rotor hub is. For the pitch drive is usually an electric Drive used. In case of a power failure, however, must Ensure that the rotor blades continue to be adjustable and, if necessary, be turned into the flag position can. Therefore, accumulators are provided at a failure of the power network needed for adjustment provide electrical energy.
Ein
herkömmlicher Pitch-Antrieb ist in der
An den Zwischenkreis ist eine Notenergieversorgung angeschlossen, die bei Ausfall des Stromnetzes den Zwischenkreis mit Energie versorgt.At the intermediate circuit is connected to an emergency power supply, the in case of failure of the power grid supplies the DC bus with energy.
Einen
Verstellantrieb für die Rotorblätter einer Windkraftanlage
auf Basis eines Gleichstrommotors ist in der
Übliche Blei-Säure oder Blei-Gel Akkumulatoren sind für die Anordnung in der sich drehenden Rotornabe wenig geeignet, da sie einen hohen Bedarf an Bauraum und ein hohes Gewicht aufweisen. Andere Akkumulatorsysteme, z. B. Lithium-Ionen Akkumulatoren erscheinen aufgrund der widrigen Umweltbedingungen in der Rotornabe, insbesondere wegen der großen Temperaturschwankungen, ungeeignet.usual Lead acid or lead gel accumulators are for the arrangement in the rotating rotor hub little suitable since they have a high demand for space and a high weight. Other Accumulator systems, eg. B. lithium-ion batteries appear due to the adverse environmental conditions in the rotor hub, in particular because of the large temperature fluctuations, unsuitable.
Beim Betrieb von Akkumulatoren entsteht nämlich sowohl während des Ladens als auch während des Entladens eine erhebliche Verlustwärme in den Zellen, was zu einer Erhöhung der Zellentemperatur führt. Hinzu kommt, dass innerhalb der Nabe der Windkraftanlagen im Betrieb Temperaturen bis +50°C auftreten können, wodurch eine erhebliche Verkürzung der Lebensdauer der Akkumulatoren auftritt. Lithium-Ionen Akkumulatoren sind in dieser Hinsicht besonders empfindlich.At the Operation of accumulators arises namely both during of loading as well as during unloading a considerable Loss of heat in the cells, causing an increase the cell temperature leads. On top of that, inside the hub of wind turbines in operation temperatures up to + 50 ° C can occur, causing a significant shortening the life of the accumulators occurs. Lithium ion accumulators are particularly sensitive in this regard.
Es ist die Aufgabe der vorliegenden Erfindung einen verbesserten, insbesondere zuverlässigen Stellantrieb für ein Rotorblatt anzugeben.It the object of the present invention is an improved, in particular reliable actuator for a rotor blade specify.
Diese Aufgabe wird erfindungsgemäß durch einen Stellantrieb mit den Merkmalen des Patentanspruchs 1 gelöst.These The object is achieved by an actuator solved with the features of claim 1.
Durch die Bereitstellung einer elektrisch antreibbaren Wärmeabfuhreinrichtung am Energiespeicher lassen sich auch temperaturempfindliche Akkumulatoren oder Kondensatoren einsetzen. Ein unzulässiger Temperaturanstieg wird auf einfache Weise vermieden. Die Zuverlässigkeit des Energiespeichers und damit des Stellantriebs kann deutlich verbessert werden. Die Temperatur des Energiespeichers kann mit der elektrisch antreibbaren Wärmeabfuhreinrichtung feinfühlig reguliert werden. Dadurch lässt sich der Energiespeicher in einem für die Leistungsabgabe bzw. für die Haltbarkeit optimalen Temperaturbereich halten.By the provision of an electrically driven heat removal device The energy storage can also be temperature-sensitive accumulators or Insert capacitors. An inadmissible temperature rise is easily avoided. The reliability the energy storage and thus the actuator can be significantly improved become. The temperature of the energy store can be with the electric drivable heat dissipation device sensitive be regulated. This allows the energy storage in one for the power output or for the Durability keep optimal temperature range.
Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Further advantageous embodiments are in the subclaims specified.
Sehr kostengünstige elektrische Wärmeabfuhreinrichtungen weisen einen Ventilator oder ein Peltier-Element auf.Very inexpensive electrical heat removal devices have a fan or a Peltier element.
Vorzugsweise umfasst der Energiespeicher einen Lithium-Ionen Akkumulator. Dieser vereint eine hohe Leistungsdichte mit einem geringen Wartungsbedarf, kleinen Abmessungen, hoher Zuverlässigkeit und einer präzisen Überwachbarkeit des Zustands. Die langsame chemische Zersetzung des Akkumulators wird durch die Wärmeabfuhreinrichtungen wirkungsvoll verzögert, so dass eine ausreichende Lebensdauer erzielt wird.Preferably the energy store comprises a lithium-ion accumulator. This combines high power density with low maintenance requirements, small dimensions, high reliability and precise monitoring of the state. Slow chemical decomposition of the accumulator is effectively delayed by the heat removal devices, so that a sufficient life is achieved.
Die Ausfallsicherheit der Wärmeabfuhreinrichtung lässt sich erhöhen, wenn diese aus dem Hauptgenerator der Windkraftanlage, aus einer Photovoltaikzelle, oder aus einem Hilfswindgenerator mit elektrischer Energie versorgt wird.The Resilience of the heat dissipation device leaves increase if they come from the main generator of the wind turbine, from a photovoltaic cell, or from an auxiliary wind generator with electrical Energy is supplied.
Wenn alle drei der vorgenannten Energiequellen zur Verfügung stehen, kann die Wärmeabfuhreinrichtung in fast jeder denkbaren Situation, in der Wärme entsteht, mit elektrischer Energie versorgt werden. Die Photovoltaikzelle steht tagsüber, insbesondere bei Wärmebelastung des Energiespeichers durch Sonneneinstrahlung zur Verfügung. Bei zu geringer Lichteinstrahlung verringert der Hilfswindgenerator, welcher vorzugsweise für schwachen Wind ausgelegt ist, die Ausfallwahrscheinlichkeit der Wärmeabfuhreinrichtung.If all three of the aforementioned energy sources available stand, the heat dissipation device in almost every conceivable Situation in which heat is generated, with electrical energy be supplied. The photovoltaic cell stands during the day, in particular at heat load of the energy storage by solar radiation to disposal. Reduced with too little light the auxiliary wind generator, which preferably for low wind is designed, the probability of failure of the heat dissipation device.
Es zeigen:It demonstrate:
Gemäß
In
Auch
wenn von dem Stromnetz
Durch
den Ventilator
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 10335575 A1 [0004] - DE 10335575 A1 [0004]
- - DE 29722109 U1 [0006] - DE 29722109 U1 [0006]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007016023A DE102007016023A1 (en) | 2007-04-03 | 2007-04-03 | 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007016023A DE102007016023A1 (en) | 2007-04-03 | 2007-04-03 | 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 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007016023A1 true DE102007016023A1 (en) | 2008-10-09 |
Family
ID=39736118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007016023A Withdrawn DE102007016023A1 (en) | 2007-04-03 | 2007-04-03 | 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 |
Country Status (1)
Country | Link |
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DE (1) | DE102007016023A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009019453B3 (en) * | 2008-05-13 | 2010-09-30 | Suzlon Energy Gmbh | Control cabinet for a wind turbine |
WO2011032897A2 (en) | 2009-09-17 | 2011-03-24 | Ssb Wind Systems Gmbh & Co. Kg | Wind turbine |
WO2011089221A3 (en) * | 2010-01-21 | 2012-01-26 | Repower Systems Ag | Wind energy plant having a blade heater |
WO2012022501A1 (en) * | 2010-08-17 | 2012-02-23 | Siemens Aktiengesellschaft | Variable-pitch propeller or repeller |
DE202013011999U1 (en) | 2013-11-13 | 2015-02-02 | Ssb Wind Systems Gmbh & Co. Kg | Pitch drive for a wind turbine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29722109U1 (en) | 1997-12-16 | 1998-03-26 | aerodyn Engineering GmbH, 24768 Rendsburg | Wind turbine |
DE10335575A1 (en) | 2003-07-31 | 2005-03-17 | Siemens Ag | Emergency operating device for wind power system with adjustable rotor blades has energy storage device that can be used for to supply energy to electric motor and that can be charged up by current converter |
-
2007
- 2007-04-03 DE DE102007016023A patent/DE102007016023A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29722109U1 (en) | 1997-12-16 | 1998-03-26 | aerodyn Engineering GmbH, 24768 Rendsburg | Wind turbine |
DE10335575A1 (en) | 2003-07-31 | 2005-03-17 | Siemens Ag | Emergency operating device for wind power system with adjustable rotor blades has energy storage device that can be used for to supply energy to electric motor and that can be charged up by current converter |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009019453B3 (en) * | 2008-05-13 | 2010-09-30 | Suzlon Energy Gmbh | Control cabinet for a wind turbine |
WO2011032897A2 (en) | 2009-09-17 | 2011-03-24 | Ssb Wind Systems Gmbh & Co. Kg | Wind turbine |
DE102009044036A1 (en) | 2009-09-17 | 2011-04-14 | Ssb Wind Systems Gmbh & Co. Kg | Wind turbine |
DE202009018902U1 (en) | 2009-09-17 | 2014-06-06 | Ssb Wind Systems Gmbh & Co. Kg | Wind turbine |
WO2011089221A3 (en) * | 2010-01-21 | 2012-01-26 | Repower Systems Ag | Wind energy plant having a blade heater |
US8922040B2 (en) | 2010-01-21 | 2014-12-30 | Senvion Se | Wind energy plant with dynamic power distribution between the pitch system and supplementary electrical load |
WO2012022501A1 (en) * | 2010-08-17 | 2012-02-23 | Siemens Aktiengesellschaft | Variable-pitch propeller or repeller |
CN103038130A (en) * | 2010-08-17 | 2013-04-10 | 西门子公司 | Variable-pitch propeller or repeller |
AU2011290961B2 (en) * | 2010-08-17 | 2014-02-27 | Siemens Aktiengesellschaft | Variable-pitch propeller or repeller |
CN103038130B (en) * | 2010-08-17 | 2015-09-16 | 西门子公司 | Adjustable propelling unit or adjustable anti-thruster |
US9476311B2 (en) | 2010-08-17 | 2016-10-25 | Siemens Aktiengesellschaft | Variable-pitch propeller or repeller |
DE202013011999U1 (en) | 2013-11-13 | 2015-02-02 | Ssb Wind Systems Gmbh & Co. Kg | Pitch drive for a wind turbine |
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Legal Events
Date | Code | Title | Description |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20121101 |