DE102010024237C5 - Emergency power supply for adjusting the rotor blades of a wind turbine - Google Patents
Emergency power supply for adjusting the rotor blades of a wind turbine Download PDFInfo
- Publication number
- DE102010024237C5 DE102010024237C5 DE102010024237.3A DE102010024237A DE102010024237C5 DE 102010024237 C5 DE102010024237 C5 DE 102010024237C5 DE 102010024237 A DE102010024237 A DE 102010024237A DE 102010024237 C5 DE102010024237 C5 DE 102010024237C5
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- Germany
- Prior art keywords
- power supply
- supply device
- emergency power
- converter
- voltage
- 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 - Fee Related
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- 238000004146 energy storage Methods 0.000 claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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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
- 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
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- 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
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- 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
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- 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
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- 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)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
Notstromversorgungseinrichtung (2) zum Verstellen der Rotorblätter einer Windkraftanlage mit einem Verstellmotor (3), wobei die Notstromversorgungseinrichtung (2) einen Energiespeicher (7) aufweist, der zur Stromversorgung des Verstellmotors (3) im Notfallbetrieb dient, wobei die Notstromversorgungseinrichtung (2) mit einer Netzstromversorgungseinrichtung (1) gekoppelt ist, die für den elektrischen Energiefluss von einem Stromnetz zu dem Verstellmotor (3) einen stromnetzseitigen Gleichrichter (4), einen demselben nachgeordneten Antriebszwischenkreis (5) und einen demselben nachgeordneten Wechselrichter (6) aufweist, dadurch gekennzeichnet, dass die Notstromversorgungseinrichtung (2) einen zwischen dem Gleichrichter (4) und dem Antriebszwischenkreis (5) liegenden Wandler (8) aufweist, dass der Energiespeicher (7) direkt an den Antriebszwischenkreis (5) angekoppelt ist und dass der Wandler (8) als Aufwärts-/Abwärtswandler ausgeführt ist.Emergency power supply device (2) for adjusting the rotor blades of a wind turbine with an adjusting motor (3), wherein the emergency power supply device (2) has an energy store (7) which serves to power the Verstellmotors (3) in emergency operation, wherein the emergency power supply device (2) with a Mains power supply device (1) is coupled, which for the electrical energy flow from a power network to the adjusting motor (3) a power supply side rectifier (4), a same downstream drive intermediate circuit (5) and a same downstream inverter (6), characterized in that the Emergency power supply device (2) between the rectifier (4) and the drive intermediate circuit (5) lying converter (8), that the energy storage (7) is coupled directly to the drive link (5) and that the converter (8) as up / Down converter is executed.
Description
Die Erfindung betrifft eine Notstromversorgungseinrichtung zum Verstellen der Rotorblätter einer Windkraftanlage mit einem Verstellmotor, wobei die Notstromversorgungseinrichtung einen Energiespeicher aufweist, der zur Stromversorgung des Verstellmotors im Notfallbetrieb dient, wobei die Notstromversorgungseinrichtung mit einer Netzstromversorgungseinrichtung gekoppelt ist, die für den elektrischen Energiefluss von einem Stromnetz zu dem Verstellmotor einen stromnetzseitigen Gleichrichter, einen demselben nachgeordneten Antriebszwischenkreis und einen demselben nachgeordneten Wechselrichter aufweist.The invention relates to an emergency power supply device for adjusting the rotor blades of a wind turbine with an adjusting motor, wherein the emergency power supply device has an energy storage, which serves to power the Verstellmotors in emergency mode, wherein the emergency power supply device is coupled to a mains power supply device for the electrical energy flow from a power supply to the Adjusting motor having a power supply side rectifier, a same downstream drive link and a same downstream inverter.
Eine derartige Notstromversorgungseinrichtung ist in der
Aus der
Daher liegt der Erfindung die Aufgabe zugrunde, eine Notstromversorgungseinrichtung der oben genannten Art so zu verbessern, dass die Dimensionierung des Energiespeichers unabhängig von der Netzspannung und deren Toleranzschwankungen ist.The invention is therefore based on the object to improve an emergency power supply device of the type mentioned above so that the dimensioning of the energy storage is independent of the mains voltage and their tolerance variations.
Die Aufgabe wird dadurch gelöst, dass die Notstromversorgungseinrichtung einen zwischen dem Gleichrichter und dem Antriebszwischenkreis liegenden Wandler aufweist, dass der Energiespeicher direkt an den Antriebszwischenkreis angekoppelt ist und dass der Wandler als Aufwärts-/Abwärtswandler ausgeführt ist.The object is achieved in that the emergency power supply device has a converter located between the rectifier and the drive intermediate circuit, that the energy store is coupled directly to the drive link and that the converter is designed as an up / down converter.
Dieser Wandler besteht in vorteilhafter Ausführung aus einem Abwärtswandler mit einem nachgeschalteten Aufwärtswandler.This converter consists in an advantageous embodiment of a down converter with a downstream boost converter.
Der Abwärtswandler dient zum Laden des Energiespeichers bzw. Speisen des Antriebszwischenkreises über den gesamten Spannungsbereich unterhalb der gleichgerichteten Netzspannung des Stromnetzes. Der nachgeschaltete Aufwärtswandler dient dem Ladevorgang des Energiespeichers bzw. der Speisung des Antriebszwischenkreises, wenn seine Ladeschlussspannung oberhalb der gleichgerichteten Netzspannung des Stromnetzes liegt.The buck converter is used to charge the energy storage or food of the drive intermediate circuit over the entire voltage range below the rectified mains voltage of the mains. The downstream boost converter is used for charging the energy storage or the supply of the drive intermediate circuit when its charge end voltage is above the rectified mains voltage of the power grid.
Eine vorteilhafte Weiterbildung der Notstromversorgungseinrichtung besteht, wenn gemäß Anspruch 4 der Energiespeicher modular aufgebaut ist.An advantageous development of the emergency power supply device is when according to claim 4, the energy storage is modular.
Weiterhin ist es vorteilhaft, wenn gemäß Anspruch 5 der Energiespeicher als Doppelschichtkondensator ausgeführt ist.Furthermore, it is advantageous if according to claim 5, the energy storage is designed as a double-layer capacitor.
Eine weitere sehr vorteilhafte Ausführungsform besteht, wenn gemäß Anspruch 6 Mittel zur dynamischen Spannungsanpassung des Energiespeichers vorgesehen sind.A further very advantageous embodiment is when, according to
Vorteilhafterweise hat gemäß Anspruch 7 der Energiespeicher einen Mikroprozessor für ein Lademanagement mit Einzelzellen oder Segment spannungsüberwachung.Advantageously, according to claim 7, the energy storage has a microprocessor for a charge management with single cells or segment voltage monitoring.
Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand einer Zeichnung näher erläutert.An embodiment of the invention will be explained in more detail below with reference to a drawing.
In der Zeichnung ist ein Schaltbild mit einer Netzstromversorgungseinrichtung
Zur Netzstromversorgungseinrichtung
Der Energiespeicher
Der durch den elektronischen Schalter a, einen weiteren elektronischen Schalter e, die Drossel c und die Diode d gebildete Aufwärtswandler übernimmt den Ladevorgang, wenn die spezifizierte Ladeschlussspannung oberhalb der gleichgerichteten Netzspannung liegt und speist den Antriebszwischenkreis
Das Umschalten zwischen dem Betrieb Abwärtswandler und Aufwärtswandler und umgekehrt erfolgt automatisch im Betrieb in Abhängigkeit der gleichgerichteten Netzspannung und der Antriebszwischenkreis-/Energiespeicherspannung durch den μC.Switching between the buck converter and boost converter operation and vice versa is automatic during operation as a function of the rectified line voltage and the drive DC link / power storage voltage through the μC.
Aufgrund dessen kann die Ladeschlussspannung des modular aufbaubaren Energiespeichers
Die direkte Ankopplung des Energiespeichers
Ein modularer Aufbau des Energiespeichers
Der Energiespeicher
Der Mikroprozessor im Energiespeicher
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010024237.3A DE102010024237C5 (en) | 2010-06-18 | 2010-06-18 | Emergency power supply for adjusting the rotor blades of a wind turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010024237.3A DE102010024237C5 (en) | 2010-06-18 | 2010-06-18 | Emergency power supply for adjusting the rotor blades of a wind turbine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102010024237B3 DE102010024237B3 (en) | 2011-12-08 |
DE102010024237C5 true DE102010024237C5 (en) | 2017-05-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010024237.3A Expired - Fee Related DE102010024237C5 (en) | 2010-06-18 | 2010-06-18 | Emergency power supply for adjusting the rotor blades of a wind turbine |
Country Status (1)
Country | Link |
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DE (1) | DE102010024237C5 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69401497T2 (en) * | 1993-02-12 | 1997-06-19 | Silcon Power Electronics As | EMERGENCY GENERATOR |
US5907192A (en) * | 1997-06-09 | 1999-05-25 | General Electric Company | Method and system for wind turbine braking |
EP1852605A2 (en) * | 2005-12-15 | 2007-11-07 | Osterholz Antriebs Technik GmbH | Adjusting pitch of wind turbine blades in emergency situation. |
-
2010
- 2010-06-18 DE DE102010024237.3A patent/DE102010024237C5/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69401497T2 (en) * | 1993-02-12 | 1997-06-19 | Silcon Power Electronics As | EMERGENCY GENERATOR |
US5907192A (en) * | 1997-06-09 | 1999-05-25 | General Electric Company | Method and system for wind turbine braking |
EP1852605A2 (en) * | 2005-12-15 | 2007-11-07 | Osterholz Antriebs Technik GmbH | Adjusting pitch of wind turbine blades in emergency situation. |
Also Published As
Publication number | Publication date |
---|---|
DE102010024237B3 (en) | 2011-12-08 |
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R016 | Response to examination communication | ||
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Effective date: 20120308 |
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R008 | Case pending at federal patent court | ||
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Free format text: PREVIOUS MAIN CLASS: F03D0011000000 Ipc: F03D0080000000 |
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R011 | All appeals rejected, refused or otherwise settled | ||
R034 | Decision of examining division/federal patent court maintaining patent in limited form now final | ||
R034 | Decision of examining division/federal patent court maintaining patent in limited form now final | ||
R206 | Amended patent specification | ||
R081 | Change of applicant/patentee |
Owner name: SIEMENS GAMESA RENEWABLE ENERGY A/S, DK Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |