DE202007009660U1 - Electric actuator - Google Patents
Electric actuator Download PDFInfo
- Publication number
- DE202007009660U1 DE202007009660U1 DE202007009660U DE202007009660U DE202007009660U1 DE 202007009660 U1 DE202007009660 U1 DE 202007009660U1 DE 202007009660 U DE202007009660 U DE 202007009660U DE 202007009660 U DE202007009660 U DE 202007009660U DE 202007009660 U1 DE202007009660 U1 DE 202007009660U1
- Authority
- DE
- Germany
- Prior art keywords
- power supply
- accumulator
- motor
- electric motor
- electric actuator
- 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.)
- Expired - Lifetime
Links
- TWLBWHPWXLPSNU-UHFFFAOYSA-L [Na].[Cl-].[Cl-].[Ni++] Chemical group [Na].[Cl-].[Cl-].[Ni++] TWLBWHPWXLPSNU-UHFFFAOYSA-L 0.000 claims description 3
- VFKZMKPKVAJDHP-UHFFFAOYSA-L [Fe](Cl)Cl.[Na] Chemical compound [Fe](Cl)Cl.[Na] VFKZMKPKVAJDHP-UHFFFAOYSA-L 0.000 claims 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical group [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims 1
- RLVQRAHALRLYGN-UHFFFAOYSA-L [Na][Cu](Cl)Cl Chemical compound [Na][Cu](Cl)Cl RLVQRAHALRLYGN-UHFFFAOYSA-L 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 241000283070 Equus zebra Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- 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
- 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
-
- 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
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
-
- 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
-
- 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
- F05B2270/10—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/39—Accumulators not provided for in groups H01M10/05-H01M10/34 working at high temperature
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Elektrischer Stellantrieb, insbesondere zur Verstellung eines Anstellwinkels eines Rotorblatts einer Windkraftanlage oder zur Verstellung eines Azimutwinkels einer Gondel einer Windkraftanlage, mit einem elektrischen Motor, mit einer Steueranordnung zur Ansteuerung des Motors, mit einer Hauptstromversorgung, über die der elektrische Motor im Normalbetrieb mit elektrischer Energie versorgbar ist, und mit einer Notstromversorgung, über die der elektrische Motor bei Ausfall der Hauptstromversorgung mit elektrischer Energie versorgbar ist, dadurch gekennzeichnet, dass die Notstromquelle einen Hochtemperaturakkumulator umfasst.electrical Actuator, in particular for adjusting an angle of attack a rotor blade of a wind turbine or for adjusting a Azimuth angle of a nacelle of a wind turbine, with an electric Motor, with a control arrangement for controlling the motor, with a main power supply, via the electric motor supplied with electrical energy in normal operation is, and with an emergency power supply, over which the electric motor in case of failure of the main power supply can be supplied with electrical energy is, characterized in that the emergency power source is a Hochtemperaturakkumulator includes.
Description
Die Erfindung betrifft einen elektrischen Stellantrieb gemäß dem Oberbegriff des Schutzanspruchs 1.The The invention relates to an electric actuator according to the preamble of the protection 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 equipped with adjustable rotor blades. By doing so leaves adapt the wind turbine power to the wind speed and possibly limit it at high wind speeds. at Danger of overloading by strong wind or to take the plant out of service the rotor blades turned into a so-called flag position, where no driving Buoyancy on the rotor blade is created. In some cases, it is sufficient to have a rotor blade in the To bring flag position to slow down the wind turbine. Preferably become all rotor blades turned from 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 der Versorgungsspannung muss jedoch sichergestellt sein, dass die Rotorblätter weiterhin verstellbar sind und nötigenfalls in die Fahnenstellung gedreht werden können.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 failure of the supply voltage must be ensured be that the rotor blades continue to be adjustable and if necessary can be turned into the flag position.
Auch für die Verstellung des Azimutwinkels der Gondel einer Windkraftanlage werden elektrische Antriebe verwendet. Auch bei diesem Anwendungsfall ist die Bereitstellung einer Notstromversorgung wünschenswert. Generell wird bei einer Vielzahl von industriell eingesetzten elektrischen Stellantrieben eine Notstromversorgung benötigt, um bei Ausfall der Hauptstromversorgung einen sicheren Zustand des Stellantriebs herbeizuführen.Also for the Adjustment of the azimuth angle of the nacelle of a wind turbine used electrical drives. Also in this application is the provision of an emergency power supply desirable. Generally will in a variety of industrial electric actuators one Emergency power supply needed, in case of failure of the main power supply to a safe state of the actuator bring about.
Ein
herkömmlicher
Pitch-Antrieb ist in der
Bisher
sind Blei-Akkumulatoren, insbesondere Blei-Gel-Akkumulatoren, „Ultra-Cap" Kondensatoren, wie
in der
Es ist die Aufgabe der vorliegenden Erfindung, einen für industrielle Antriebsaufgaben, insbesondere zur Verstellung eines Anstellwinkels eines Rotorblatts einer Windkraftanlage oder zur Verstellung eines Azimutwinkels einer Gondel einer Windkraftanlage, geeigneten, hochverfügbaren elektrischen Stellantrieb anzugeben.It is the object of the present invention, one for industrial Drive tasks, in particular for adjusting an angle of attack a rotor blade of a wind turbine or for adjusting a Azimuth angle of a nacelle of a wind turbine, suitable, highly available electrical Specify actuator.
Diese Aufgabe wird erfindungsgemäß durch einen elektrischen Stellantrieb mit den Merkmalen des Schutzanspruchs 1 gelöst.These The object is achieved by a electric actuator with the features of the protection claim 1 solved.
Der erfindungsgemäße elektrische Stellantrieb besitzt als Energiespeicher der Notstromversorgung einen Hochtemperaturakkumulator. Ein typischer Hochtemperaturakkumulator, wie z.B. ein Natrium-Nickelchlorid Akkumulator, zeichnet sich durch eine hohe Zyklenfestigkeit, eine hohe kalendarische Lebensdauer, eine mit Lithium-Ionen Akkumulatoren vergleichbare Energiedichte und eine gegenüber Bleiakkumulatoren erhöhte Leistungsdichte aus. Durch die üblicherweise vorhandene thermische Isolierung bzw. eine integrierte Temperaturregelung sind Hochtemperaturakkumulatoren in einem großen Intervall der Umgebungstemperatur einsetzbar. Erhältliche Hochtemperaturakkumulator sind für den KFZ-Bereich ausgelegt und zeichnen sich durch eine sehr gute mechanische Stabilität sowie einen lageunabhängigen Betrieb aus. Die geladene Kapazität ist vollständig entnehmbar, ohne dass ein erhöhter Verschleiß auftritt. Aufgrund der hohen Zyklenfestigkeit und der hohen kalendarischen Lebensdauer kann ein Hochtemperaturakkumulator ohne Austausch und mit geringsten Wartungsanforderungen für die gesamte projektierte Lebensdauer eines elektrischen Stellantriebs ausgelegt werden. Der Energieinhalt des Akkumulators kann durch Betrachtung einer Ladungsbilanz sehr einfach und präzise nachverfolgt werden, da die zugeführte Ladungsmenge exakt der entnehmbaren Ladungsmenge entspricht.The electric actuator according to the invention has a high-temperature accumulator as energy storage of the emergency power supply. A typical high-temperature accumulator, such as a sodium-nickel chloride accumulator, is characterized by a high cycle stability, a high calendrical life, an energy density comparable to lithium-ion accumulators and an increased power density compared to lead-acid batteries. Due to the usually existing thermal insulation or an integrated temperature control high temperature accumulators can be used in a large interval of the ambient temperature. Available high-temperature accumulators are designed for the automotive sector and are characterized by a very good mechanical stability and a position-independent operation. The charged capacity is completely removable without causing increased wear. Due to the high cycle stability and the high calendar life, a high temperature accumulator without exchange and be designed with the least maintenance requirements for the entire projected life of an electric actuator. The energy content of the accumulator can be traced very easily and precisely by considering a charge balance, since the amount of charge supplied corresponds exactly to the amount of charge that can be removed.
Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Further advantageous embodiments are specified in the subclaims.
Vorzugsweise wird ein Natrium-Nickelchlorid Akkumulator mit der Bezeichnung ZEBRA eingesetzt. Solche Akkumulatoren sind zum Zeitpunkt der Anmeldung von der Firma Mes DEA S.A. in der Schweiz kommerziell erhältlich.Preferably is a sodium-nickel chloride accumulator called ZEBRA used. Such accumulators are at the time of registration from the company Mes DEA S.A. commercially available in Switzerland.
Nachfolgend werden die vorliegende Erfindung und deren Vorteile unter Bezugnahme auf die in den Figuren dargestellten Ausführungsbeispiele näher erläutert.following For example, the present invention and its advantages are incorporated by reference explained in more detail on the embodiments illustrated in the figures.
Es zeigen:It demonstrate:
In
der
Ein
Hochtemperaturakkumulator
Ein
Steuergerät
Im
normalen Betriebsfall sind die Schalter
Die
Der
wesentliche Unterschied besteht darin, dass für den elektrischen Stellantrieb
Im
normalen Betriebsfall ist der Schalter
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007009660U DE202007009660U1 (en) | 2007-07-11 | 2007-07-11 | Electric actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007009660U DE202007009660U1 (en) | 2007-07-11 | 2007-07-11 | Electric actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007009660U1 true DE202007009660U1 (en) | 2007-09-13 |
Family
ID=38515236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202007009660U Expired - Lifetime DE202007009660U1 (en) | 2007-07-11 | 2007-07-11 | Electric actuator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202007009660U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013014427A1 (en) * | 2013-08-30 | 2015-03-05 | Liebherr-Elektronik Gmbh | Drive circuit for air bearing motor |
DE102016114184A1 (en) * | 2016-08-01 | 2018-02-01 | Wobben Properties Gmbh | Machine house and rotor for a wind turbine as well as process |
-
2007
- 2007-07-11 DE DE202007009660U patent/DE202007009660U1/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013014427A1 (en) * | 2013-08-30 | 2015-03-05 | Liebherr-Elektronik Gmbh | Drive circuit for air bearing motor |
US9571014B2 (en) | 2013-08-30 | 2017-02-14 | Liebherr-Elektronik Gmbh | Drive circuit for an air bearing motor |
DE102016114184A1 (en) * | 2016-08-01 | 2018-02-01 | Wobben Properties Gmbh | Machine house and rotor for a wind turbine as well as process |
WO2018024652A2 (en) | 2016-08-01 | 2018-02-08 | Wobben Properties Gmbh | Nacelle and rotor for a wind turbine, and method |
US11111902B2 (en) | 2016-08-01 | 2021-09-07 | Wobben Properties Gmbh | Nacelle and rotor for a wind turbine, and method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20071018 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20101007 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20140201 |