DE10253811A1 - Drive for electric displacement of vanes of windpower installation consisting of vanes, whose impact angle to wind can be adjusted by DC double shunt motor, possibly mechanical gearbox - Google Patents
Drive for electric displacement of vanes of windpower installation consisting of vanes, whose impact angle to wind can be adjusted by DC double shunt motor, possibly mechanical gearbox Download PDFInfo
- Publication number
- DE10253811A1 DE10253811A1 DE10253811A DE10253811A DE10253811A1 DE 10253811 A1 DE10253811 A1 DE 10253811A1 DE 10253811 A DE10253811 A DE 10253811A DE 10253811 A DE10253811 A DE 10253811A DE 10253811 A1 DE10253811 A1 DE 10253811A1
- Authority
- DE
- Germany
- Prior art keywords
- winding
- shunt
- motor
- inverter
- double
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 title abstract description 3
- 238000006073 displacement reaction Methods 0.000 title abstract 2
- 238000004804 winding Methods 0.000 claims description 66
- 230000005284 excitation Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/298—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature and field supply
-
- 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
-
- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/281—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices the DC motor being operated in four quadrants
-
- 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
-
- 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
Abstract
Description
Die Erfindung betrifft eine Antriebsvorrichtung,
die zum Verstellen der Flügel
einer Windkraftanlage genutzt wird. Als Antrieb wird ein Gleichstrom-Doppelschlussmotor
(
Nach dem Stand der Technik werden die Flügel von Windkraftanlagen im Winkel so gestellt, dass sich die Windkraftanlage bezüglich Drehzahl, Drehmoment und abgegebene Leistung optimal den örtlich vorherrschenden Windverhältnissen anpasst. Dieser Vorgang wird auch als „Pitchen" bezeichnet; der zugeordnete Antrieb für die Flügelverstellung heißt „Pitchantrieb". Oft wird dieser Pitchantrieb mit elektrischen Antrieben realisiert. Die Flügelverstellung ist dabei extrem sicherheitskritisch, da bei einem falsch eingestellten Flügelwinkel eine unzulässig hohe Drehzahl der Windkraftanlage erreicht werden kann, die zur mechanischen Beschädigung der Windkraftanlage führt. In der Regel werden die Antriebssysteme deshalb auf eine maximale Zuverlässigkeit ausgelegt. Zu diesem Zweck werden beispielsweise Drehgeber redundant ausgeführt. Von besonderer Bedeutung ist, dass der Antrieb auch bei Störungen, wie zum Beispiel Netzausfall, die Flügel in eine sichere Position fahren können muss (Sicherheitsfahrt, bei der die Anlage aerodynamisch abgebremst wird). Aus diesem Grund ist ein Speicher für elektrische Energie, in der Regel ein Akkumulator, in der Windkraftanlage enthalten, der die für die Sicherheitsfahrt notwendige, netzunabhängige elektrische Energie liefert.According to the state of the art the wings of wind turbines at an angle so that the wind turbine in terms of Speed, torque and power output optimally match the prevailing location wind conditions adapts. This process is also referred to as "pitching"; the associated drive for the Wing adjustment is called "pitch drive". Often this is Pitch drive realized with electric drives. The wing adjustment is extremely safety-critical, since an incorrectly set one wing angle an impermissibly high Speed of the wind turbine can be achieved, which leads to mechanical damage the wind turbine leads. As a rule, the drive systems are therefore maximized reliability designed. For this purpose, encoders become redundant, for example executed. It is particularly important that the drive even in the event of faults, such as power failure, the wings in a safe position can drive must (safety run, during which the system brakes aerodynamically becomes). For this reason, there is a store for electrical energy in the Usually an accumulator included in the wind turbine, which the for the Safety trip supplies the necessary, grid-independent electrical energy.
Als Motoren werden deshalb oft Asynchronmotoren
eingesetzt. Sie erlauben mit einem einfachen, von dem Akkumulator
gespeisten, Wechselrichter (
Im Leerlauffall ist der Ankerstrom iα gleich Null, so dass die Drehzahl nur durch eine Division durch Null zu bestimmen ist.When idling, the armature current i α is zero, so that the speed can only be determined by a division by zero.
Erfindungsgemäß werden die Nachteile durch
den speziellen Einsatz einer Gleichstrom-Doppelschlussmaschine vermieden.
Durch die zusätzliche
Nebenschlusswicklung (
In einer vorteilhaften Ausführungsform
kann die Nebenschlusswicklung (
In einer weiteren vorteilhaften Ausführungsform
kann die Schaltungskombination aus Ankerwicklung und Reihenschlusswicklung
(
In einer weiteren vorteilhaften Ausführungsform
wird die Nebenschlusswicklung (
Durch die Trennung der Nebenschlusswicklung
(
Die Qualität der Drehzahlschätzung kann weiter
verbessert werden, indem durch ein Rechenwerk der an der Nebenschlusswicklung
(
Der Faktor k2 ist
dabei vom Erregerfluss der Nebenschlusswicklung (
Weitere vorteilhafte Ausführungsformen sind der Zeichnung zu entnehmen.Further advantageous embodiments can be seen in the drawing.
Auf der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt und zwar zeigen:In the drawing is an embodiment illustrated the invention and show:
- (1)(1)
- Gleichspannungsquelle des WechselrichtersDC voltage source of the inverter
- (2)(2)
- Ankerwicklung des Gleichstrommotorsarmature winding of the DC motor
- (3)(3)
- ReihenschlusswicklungSeries winding
- (4)(4)
- FeldgleichrichterField Rectifier
- (5)(5)
- NebenschlusswicklungShunt winding
- (6)(6)
- Wechselrichterinverter
- (7)(7)
- Vom Wechselrichter unabhängige Gleichspannungsquellefrom Inverter independent DC voltage source
- (8)(8th)
- Schütz zum Trennen von Motor und WechselrichterContactor to disconnect of motor and inverter
- (9)(9)
- Schütz zum Trennen von Motor und GleichspannungsquelleContactor to disconnect of motor and DC voltage source
- (10)(10)
- Netzunabhängige GleichspannungsquelleMains-independent DC voltage source
- (11)(11)
- GleichspannungsquelleDC voltage source
- (12)(12)
- Rechenwerk zur Generierung des Testsignalscalculator to generate the test signal
- (13)(13)
- Stromreglercurrent regulator
- (14)(14)
- DrehzahlreglerSpeed governor
- (15)(15)
- Rechenwerk zur Drehzahlschätzungcalculator for speed estimation
- (16)(16)
- Rechenwerk zur Drehzahlschätzung und Geberüberwachungcalculator for speed estimation and encoder monitoring
- (17)(17)
- Drehgeberencoders
- (18)(18)
- Flügel der WindkraftanlageWing of the Wind turbine
- (19)(19)
- Antrieb zur Pitchverstellungdrive for pitch adjustment
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253811.5A DE10253811B4 (en) | 2002-11-18 | 2002-11-18 | Drive device for a wind turbine with electrically adjustable wings |
DE20221764U DE20221764U1 (en) | 2002-11-18 | 2002-11-18 | Drive device for a wind turbine with electrically adjustable wings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10253811.5A DE10253811B4 (en) | 2002-11-18 | 2002-11-18 | Drive device for a wind turbine with electrically adjustable wings |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10253811A1 true DE10253811A1 (en) | 2004-06-03 |
DE10253811B4 DE10253811B4 (en) | 2018-08-23 |
Family
ID=32240153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10253811.5A Expired - Fee Related DE10253811B4 (en) | 2002-11-18 | 2002-11-18 | Drive device for a wind turbine with electrically adjustable wings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10253811B4 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004005169B3 (en) * | 2004-02-02 | 2005-11-03 | Repower Systems Ag | Rotor blade pitch control system for wind turbine generating electricity has DC supply for motor with parallel-wound and series-wound field coils with diode bypassing series field coil during braking |
EP1744444A1 (en) | 2005-07-13 | 2007-01-17 | REpower Systems AG | Rotor blade pitch adjustment apparatus |
DE102006049490A1 (en) * | 2006-10-17 | 2008-04-24 | Lti Reenergy Gmbh | Direct current motor operating control circuit for wind- or water power plant, has stopping brake that is connected either with three-bridge power inverter or emergency operation supply device over emergency operation-brake-switching unit |
WO2008135605A1 (en) * | 2007-05-04 | 2008-11-13 | Ingeteam Energy, S.A. | System and method for control of pitch for wind turbines |
WO2008138600A2 (en) * | 2007-05-14 | 2008-11-20 | Repower Systems Ag | Rotor blade adjustment device for a wind turbine |
WO2008138454A2 (en) * | 2007-05-09 | 2008-11-20 | Ssb-Antriebstechnik Gmbh & Co. Kg | Electric drive |
DE202009005837U1 (en) * | 2009-04-18 | 2010-09-16 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Circuit arrangement for operating a DC motor |
CN101860310A (en) * | 2010-06-07 | 2010-10-13 | 苏州能健电气有限公司 | Drive control circuit and method of series DC machine for pitch control system |
WO2011104318A1 (en) | 2010-02-24 | 2011-09-01 | Suzlon Energy Gmbh | Overvoltage-protected control unit for an adjusting system of wind turbine rotor blades |
US20110280724A1 (en) * | 2004-07-28 | 2011-11-17 | Peter Rogall | Method for operating mechanical emergency brake for wind turbines |
CN101676555B (en) * | 2008-09-17 | 2014-04-30 | 西门子公司 | Method for aligning a component into a wind direction and sensor for determining misalignment of the component relative to a wind direction |
CN104682793A (en) * | 2013-11-29 | 2015-06-03 | 西门子电气传动有限公司 | Control device for direct current series excitation motor and motor with control device |
DE10338127C5 (en) * | 2003-08-15 | 2015-08-06 | Senvion Se | Wind turbine with a rotor |
EP2320557A3 (en) * | 2009-10-26 | 2017-09-20 | General Electric Company | Method and apparatus for powering a pitch control system |
EP3229365A1 (en) * | 2016-04-05 | 2017-10-11 | ALSTOM Transport Technologies | Control device for controlling at least one dc-machine of a railway vehicle |
DE102019001355A1 (en) * | 2019-02-26 | 2020-08-27 | Senvion Gmbh | Rotor blade adjustment device for wind turbines |
DE102020004036A1 (en) | 2020-07-03 | 2022-01-05 | Siemens Gamesa Renewable Energy Service Gmbh | Wind energy plant and method for operating a wind energy plant |
US11668282B2 (en) | 2020-07-03 | 2023-06-06 | Siemens Gamesa Renewable Energy Service Gmbh | Wind energy installation and a method of operating a wind energy installation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4006115A1 (en) | 1989-02-28 | 1990-08-30 | Square D Co | ELECTRONIC CONTROL CIRCUIT FOR A TWO-WAY MOTOR |
WO2002040862A1 (en) | 2000-11-14 | 2002-05-23 | Aloys Wobben | Wind energy turbine |
DE10140793A1 (en) | 2001-08-20 | 2003-03-06 | Gen Electric | Device for adjusting the rotor blade of a rotor of a wind turbine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6231390A (en) | 1985-07-31 | 1987-02-10 | Mitsubishi Electric Corp | Controller of motor |
-
2002
- 2002-11-18 DE DE10253811.5A patent/DE10253811B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4006115A1 (en) | 1989-02-28 | 1990-08-30 | Square D Co | ELECTRONIC CONTROL CIRCUIT FOR A TWO-WAY MOTOR |
WO2002040862A1 (en) | 2000-11-14 | 2002-05-23 | Aloys Wobben | Wind energy turbine |
DE10140793A1 (en) | 2001-08-20 | 2003-03-06 | Gen Electric | Device for adjusting the rotor blade of a rotor of a wind turbine |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10338127C5 (en) * | 2003-08-15 | 2015-08-06 | Senvion Se | Wind turbine with a rotor |
DE102004005169B3 (en) * | 2004-02-02 | 2005-11-03 | Repower Systems Ag | Rotor blade pitch control system for wind turbine generating electricity has DC supply for motor with parallel-wound and series-wound field coils with diode bypassing series field coil during braking |
US20110280724A1 (en) * | 2004-07-28 | 2011-11-17 | Peter Rogall | Method for operating mechanical emergency brake for wind turbines |
EP1744444A1 (en) | 2005-07-13 | 2007-01-17 | REpower Systems AG | Rotor blade pitch adjustment apparatus |
DE102006049490A1 (en) * | 2006-10-17 | 2008-04-24 | Lti Reenergy Gmbh | Direct current motor operating control circuit for wind- or water power plant, has stopping brake that is connected either with three-bridge power inverter or emergency operation supply device over emergency operation-brake-switching unit |
US7764029B2 (en) | 2006-10-17 | 2010-07-27 | Moog Unna Gmbh | Activation current for DC motor having brake and emergency operation supply unit |
WO2008135605A1 (en) * | 2007-05-04 | 2008-11-13 | Ingeteam Energy, S.A. | System and method for control of pitch for wind turbines |
CN101849352B (en) * | 2007-05-09 | 2012-11-14 | Ssb-驱动技术两合有限公司 | Electric drive |
DE102007021632A1 (en) * | 2007-05-09 | 2008-11-20 | Ssb-Antriebstechnik Gmbh & Co. Kg | Electric drive |
US8154235B2 (en) | 2007-05-09 | 2012-04-10 | Ssb Wind Systems Gmbh & Co. Kg | Electric drive |
WO2008138454A3 (en) * | 2007-05-09 | 2010-07-01 | Ssb-Antriebstechnik Gmbh & Co. Kg | Electric drive |
WO2008138454A2 (en) * | 2007-05-09 | 2008-11-20 | Ssb-Antriebstechnik Gmbh & Co. Kg | Electric drive |
JP2010530203A (en) * | 2007-05-09 | 2010-09-02 | エスエスベー−アントリーブステヒニック・ゲーエムベーハ−・ウント・コムパニー・カーゲー | Electrical drive |
WO2008138600A3 (en) * | 2007-05-14 | 2009-04-23 | Repower Systems Ag | Rotor blade adjustment device for a wind turbine |
DE102007022511B4 (en) * | 2007-05-14 | 2009-07-30 | Repower Systems Ag | Wind energy plant with an adjustment device for the rotor blades |
DE102007022511A1 (en) * | 2007-05-14 | 2008-11-20 | Repower Systems Ag | Rotor blade adjustment device for a wind turbine |
US8344532B2 (en) | 2007-05-14 | 2013-01-01 | Repower Systems Ag | Rotor blade adjustment device for a wind turbine |
EP2559893A1 (en) * | 2007-05-14 | 2013-02-20 | REpower Systems AG | Rotor blade adjustment device for a wind turbine |
CN101802394B (en) * | 2007-05-14 | 2013-05-01 | 再生动力系统股份公司 | Rotor blade adjustment device for a wind turbine |
WO2008138600A2 (en) * | 2007-05-14 | 2008-11-20 | Repower Systems Ag | Rotor blade adjustment device for a wind turbine |
CN101676555B (en) * | 2008-09-17 | 2014-04-30 | 西门子公司 | Method for aligning a component into a wind direction and sensor for determining misalignment of the component relative to a wind direction |
DE202009005837U1 (en) * | 2009-04-18 | 2010-09-16 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Circuit arrangement for operating a DC motor |
EP2320557A3 (en) * | 2009-10-26 | 2017-09-20 | General Electric Company | Method and apparatus for powering a pitch control system |
WO2011104318A1 (en) | 2010-02-24 | 2011-09-01 | Suzlon Energy Gmbh | Overvoltage-protected control unit for an adjusting system of wind turbine rotor blades |
DE102011004699A1 (en) | 2010-02-24 | 2012-12-27 | Suzlon Energy Gmbh | Control unit and wind turbine with such a control unit |
CN101860310A (en) * | 2010-06-07 | 2010-10-13 | 苏州能健电气有限公司 | Drive control circuit and method of series DC machine for pitch control system |
CN104682793A (en) * | 2013-11-29 | 2015-06-03 | 西门子电气传动有限公司 | Control device for direct current series excitation motor and motor with control device |
CN104682793B (en) * | 2013-11-29 | 2018-02-16 | 西门子电气传动有限公司 | Control device for direct current series-excited motor and the motor with the control device |
EP3229365A1 (en) * | 2016-04-05 | 2017-10-11 | ALSTOM Transport Technologies | Control device for controlling at least one dc-machine of a railway vehicle |
DE102019001355A1 (en) * | 2019-02-26 | 2020-08-27 | Senvion Gmbh | Rotor blade adjustment device for wind turbines |
WO2020173602A1 (en) * | 2019-02-26 | 2020-09-03 | Senvion Deutschland Gmbh | Rotor blade adjusting device for wind turbines |
DE102020004036A1 (en) | 2020-07-03 | 2022-01-05 | Siemens Gamesa Renewable Energy Service Gmbh | Wind energy plant and method for operating a wind energy plant |
US11668282B2 (en) | 2020-07-03 | 2023-06-06 | Siemens Gamesa Renewable Energy Service Gmbh | Wind energy installation and a method of operating a wind energy installation |
US11746748B2 (en) | 2020-07-03 | 2023-09-05 | Siemens Gamesa Renewable Energy Service Gmbh | Wind energy installation and a method of operating a wind energy installation |
Also Published As
Publication number | Publication date |
---|---|
DE10253811B4 (en) | 2018-08-23 |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8125 | Change of the main classification |
Ipc: H02P 7/292 AFI20051017BHDE |
|
8127 | New person/name/address of the applicant |
Owner name: LUST DRIVETRONICS GMBH, 59425 UNNA, DE |
|
8127 | New person/name/address of the applicant |
Owner name: LTI REENERGY GMBH, 59423 UNNA, DE |
|
8127 | New person/name/address of the applicant |
Owner name: MOOG UNNA GMBH, 59423 UNNA, DE |
|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R082 | Change of representative |
Representative=s name: FLEUCHAUS & GALLO PARTNERSCHAFT MBB, DE Representative=s name: DR. JOSTARNDT & KOLLEGEN, DE |
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Representative=s name: FLEUCHAUS & GALLO PARTNERSCHAFT MBB, DE |
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