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
  • F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
• • 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
  • F03D7/04—Automatic control; Regulation
• • 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
• • 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
  • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
  • F03D7/0208—Orientating out of wind
• • 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
  • 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
  • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
• • 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
  • F03D7/04—Automatic control; Regulation
  • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
  • F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
• • 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

Definitions

• the invention relates to a wind turbine with a
• Machine carrier one about a rotor axis rotatable on
• Rotary movement about the rotor axis drivable rotor comprising a rotor hub and a plurality of rotor blades, each in the direction of a transverse or substantially transversely to
• Rotor axis extending blade axis extend and are mounted rotatably about their respective blade axis on the rotor hub, arranged on the rotor Blattwinkelverstellantrieben, by means of which the rotor blades are rotatable about their blade axes, at least one with the Blattwinkelverstellantrieben
• Modern wind turbines include rotor blades rotatably mounted on a rotor, in which by individual change of the blade angle of the angle of attack of the wind can be varied.
• a pitch-controlled wind turbine is known for example from DE 103 38 127 B4.
• the pitch system is connected to an AC power grid and includes a rotor for each rotor blade, the control and regulating devices for
• Adjustment of the rotor blade and a converter are assigned. In the event of mains faults or power failure, it must be ensured that the power supply to the motor is maintained for at least a short time. Therefore, the pitch system for each rotor blade has one arranged in the rotor
• EP 1 707 807 A2 shows another pitch system for a wind turbine with a DC drive for the
• the voltage rectification for the motor is carried out by means of a bridge circuit, the active
• the pitch system serves as an energy source for the pitch system in case of power disturbances or power failure.
• the pitch system serves as an energy source for the pitch system in case of power disturbances or power failure.
• the arrangement of the pitch system in the rotating part of the wind turbine is associated with considerable disadvantages.
• the components of the pitch system are subject to a high number of fatigue processes caused by the movement of the rotor.
• the components must therefore be designed especially for their rotational movement both mechanically and electrically special, so that the manufacturing cost of the components are relatively high.
• the arrangement of the blade angle control device in the rotor is additionally associated with a considerable outlay and costs for the communication of the pitch system with a wind turbine control arranged outside the rotor.
• the present invention seeks to be able to realize at least partially with simpler components in a wind turbine of the type mentioned, the Blattwinkel Kunststoffongsky.
• the wind turbine according to the invention comprises a machine carrier, one about a rotor axis rotatable on
• Rotary movement about the rotor axis drivable rotor having a rotor hub and a plurality of rotor blades, each in the direction of a transverse or substantially transversely to
• Rotor axis extending blade axis extend and are mounted rotatably about their respective blade axis on the rotor hub, arranged on the rotor Blattwinkelverstellantriebe, by means of which the rotor blades are rotatable about their blade axes, at least one with the Blattwinkelverstellantrieben
• Blattwinkelverstellantrieben coupled control units comprises, of which a first control unit on the rotor and a second control unit is attached to the machine frame.
• the blade angle control device By dividing the blade angle control device into a plurality of control units, of which the first control unit is rotatable together with the rotor about the rotor axis relative to the second control unit arranged on the machine control unit, several components of the blade angle control device, in particular the components of the second control unit, on
• Machine support provided so that the number of rotatable about the rotor axis components is reducible. Thus, fewer components for rotation about the rotor axis
• An additional advantage is that due to the reduced number of electrical components in the rotor in this more clearance is created so that more space for service staff is available in the rotor. Also, the cabling effort can be reduced.
• the blade angle control device can preferably be supplied with electrical energy by an electrical power supply device. Further, that of the generator
• the electrical power supply device is electrically coupled to the network or formed by the network.
• the power supply device is preferably supplied from the network with electrical energy.
• Power supply device preferably forms a
• the network is preferably an AC network, in particular a
• the Blattwinkelverstellantriebe are preferably controllable and / or regulated by means of the first control unit.
• the blade angle control device has one or more attached to the rotor and with the first
• Control unit electrically coupled first electrical
• Control unit at least temporarily with electrical
• Energy storage allow in particular an emergency exit, so that the rotor blades are rotatable by the first control means about their blade axes each in a defined position, which offers as little attack surface for the wind and is also referred to as a flag position.
• the Blattwinkelverstellantriebe include
• Electric motors which are designed in particular as DC motors or as AC motors. According to one
• the electric motors by means of the first control unit directly or indirectly electrically connected to the one or more energy storage devices.
• the direct connection is particularly suitable for DC motors.
• Auxiliary inverter or inverter attached to the rotor, wherein the electric motors by means of the first control unit with the first or the first electrical energy storage under
• the Blade angle control means may comprise the auxiliary inverters or inverters.
• the one or more first energy storage devices are in each case designed in each case as a direct current source.
• the first energy store or stores each comprise at least one
• the capacitors include in particular double-layer capacitors, e.g. Ultracaps, where a very high energy density can be achieved. Every one of them
• Blattwinkelverstellantriebe are preferably associated with one or more of the first energy storage.
• the Blattwinkelverstellantriebe are preferably controllable and / or regulated by means of the second control unit.
• the Blattwinkelverstellantriebe are controlled either by means of the first control unit or by means of the second control unit and / or regulated.
• the second control unit has one or more inverters, by means of which the
• the inverters have one or more
• the inverters each have one
• the inverter (s) are preferably electric with the pitch actuators connected. Furthermore, the converter (s) are preferably electrically connected to the power supply device.
• the second control unit has an input stage, which is in particular electrically coupled to the power supply device, depending
• a separate inverter is provided in this embodiment, a plurality of output stages are coupled to the same DC link arrangement, which is powered by only one input stage. This can save costs.
• the converter or inverters preferably comprise the input stage, the output stages and the DC link arrangement.
• the input stage is preferably a rectifying input stage, so that it acts as a rectifier or can act.
• the input stage comprises an inverter or a power converter, such as an inverter.
• the output stages are preferably controllable.
• the output stages each comprise a controllable power converter, e.g. in the form of a transistor stage.
• each of the output stages comprises a plurality of controllable electrical switching elements, preferably to a
• Bridge circuit are interconnected.
• the switching elements are formed for example by transistors, in particular by IGBTs.
• the second control unit preferably has one or several controls by means of which the output stages are controllable.
• one or at least one computer is provided which completely or partially encompasses or forms the controller or the controllers.
• the DC link arrangement preferably forms one
• Each of the Blattwinkelverstellantriebe is preferably associated with one of the output stages, wherein each of the
• controllable and / or controllable are independently controllable and / or controllable.
• Energy storage is used in particular at a
• the Blattwinkelverstellantriebe continue to operate.
• the Blattwinkelverstellantriebe are preferably then controlled by the second control unit and / or
• Input stage includes in particular switching devices by means of which a temporary power failure, in particular the temporary mains voltage dip, without switching off the wind turbine and / or separation of the wind turbine can be traversed by the network.
• the second energy storage is electrically connected via the one or more inverters with the Blattwinkelverstellantrieben.
• the second energy store with the DC or DC intermediate circuits of or
• the second energy store is electrically connected to the DC intermediate circuit arrangement
• the second energy store forms in particular one or at least one DC power source.
• the second energy store preferably comprises at least one battery, at least one accumulator or at least one capacitor.
• the blade angle control device is connected in particular to a wind turbine control, preferably electrically.
• the first control unit and / or the second control unit is connected to the wind turbine control.
• the entire operation of the wind turbine can be monitored and
• the blade angle control device and / or the second control unit preferably comprises a mains filter, which is fastened in particular to the machine carrier.
• a mains filter which is fastened in particular to the machine carrier.
• only a single mains filter is required, which is in particular connected to the wind turbine control.
• costs can be saved, since in conventional wind turbines usually each drive is assigned a arranged in the rotor line filter. Also, the
• Mains filter are connected to the wind turbine control over relatively simple connections, as they do not have to be led out of the rotating rotor. Furthermore, additional space is created in the rotor.
• Machine carrier rotatable about a yaw axis on a
• Blade angle control and the yaw angle control can be done via a simple interface, since the connection does not have to be led out of the rotating rotor.
• the yaw drive preferably comprises at least one
• Yaw angle control is controllable.
• the supporting structure is in particular a tower.
• Yaw angle control can be coordinated, in particular a synchronizable with the blade angle adjustment
• Yaw angle control possible are the rotor blades in response to a yaw rate or one of these
• the connecting lines can comprise electrical and / or optical lines.
• connection elements comprise one or more communication lines, one or more control lines and / or one or more power supply lines.
• the one or more control lines preferably comprise one or more electrical lines.
• the one or more power supply lines preferably comprise one or more electrical lines.
• the connecting elements preferably comprise a plurality of slip rings, over which the one or more of the connecting lines are guided.
• Slip rings are provided in particular at the separation point between the rotor and the machine carrier.
• the slip rings are arranged on the rotor, in particular on the rotor shaft.
• the individual slip rings are preferably offset from one another in the direction of the rotor axis.
• the one or more control lines and / or the one or more power supply lines are guided over the slip rings.
• the one or more communication lines preferably comprise one or more optical signals
• Optical fiber Preferably, the
• Coupling device in particular at the separation point is provided between the rotor and the machine frame.
• the optical coupling device is radially in the middle of
• connection between the optical coupling device and the second control unit is preferably carried out by only one optical line.
• Between the optical coupling device and the Blattwinkelverstellantrieben preferably extend a plurality of optical lines.
• Switching device which is also referred to as a motor panel.
• the switching devices are in particular with the first control unit and / or with the second control unit
• Electric motor with a motor shaft.
• the electric motors are preferably the above-mentioned electric motors of
• the measuring devices each comprise a sensor for detecting the angular position and / or the
• the measuring devices preferably each include one
• the switching devices each comprise one
• Brake control is preferably coupled to the first control unit and / or to the second control unit.
• the switching devices are coupled to one another via the communication lines and / or the control lines, in particular directly.
• the switching devices can each at least one of the first
• Control unit associated with a control cabinet which is preferably arranged radially centered or approximately radially centered in the rotor with respect to the rotor axis.
• the control unit associated with a control cabinet, which is preferably arranged radially centered or approximately radially centered in the rotor with respect to the rotor axis.
• Control cabinet inner partitions which divide the interior of the cabinet into several separate areas, which are preferably each bounded by an outer wall of the cabinet, wherein the number of areas corresponds in particular to the number of Blattwinkelverstellantriebe.
• the inner partitions may e.g. be made mechanically by folding, so that their training no
• the control cabinet preferably has the shape of a polygon. According to one embodiment of the invention, the control cabinet surrounds the rotor axis. Each of the first energy stores can be on the one
• the one or more first energy stores are preferably arranged in close spatial proximity to one another and at a distance from the pitch angle adjusting drives.
• the first energy store (s) are arranged on or in the control cabinet.
• the one or more first energy storage outside the cabinet are attached to the outer wall or outer walls.
• Service personnel are the first or the first energy storage thus easier to maintain and / or exchange.
• the first control unit is arranged in particular in the control cabinet.
• the first control unit comprises a plurality of sub-control units, wherein each of the sub-control units is arranged in one of the areas.
• each of the sub-control units is associated with one of the Blattwinkelverstellantriebe. In particular, the number corresponds to the
• Blade angle adjustment drives
• the one or more supply lines are preferably led to the first and / or second control unit by each of the switching devices or by each of the blade angle adjusting drives.
• the attachment of the articles to the rotor can be done either directly or indirectly, e.g. over one or more brackets or other
• Machine carrier fixed objects are not rotatable together with the rotor about the rotor axis. These items include e.g. the second control unit, the second
• the attachment of the objects on Machine supports can each be directly or indirectly, for example via one or more brackets or other intermediate elements.
• Machine carriers mounted objects rotatable about the rotor axis.
• the invention further relates to a method for adjusting a blade angle of at least one rotor blade of a wind turbine according to the invention by rotating the
• the wind turbine can be named after all
• the blade angle is preferably controlled.
• the blade angle is preferably set to a defined
• Blade angle adjustment by means of the first control unit in particular in the case of a fault, such as in the case of a failure of the power supply device and / or the network, the Blattwinkelverstellantriebe of one or more on the rotor fixed and coupled to the first control unit supplied first electrical energy storage with electrical energy.
• Machine carrier attached second energy storage powered by electrical energy.
• the blade angle control device has a
• Switching device by means of which a switch from a power supply of the Blattwinkelverstellantriebe by an electrical network to the power supply of
• FIG. 1 is a schematic representation of a wind turbine according to a first embodiment of the invention
• FIG. 2 is a partial front view of FIG. 1
• Blade angle control device according to the first
• Embodiment a schematic representation of a motor panel according to the first embodiment, a schematic representation of a
• Leaf angle control device according to a second embodiment of the invention, a schematic representation of a
• Leaf angle control device according to a third embodiment of the invention, a schematic representation of a
• Blade angle control device according to a fourth embodiment of the invention, a perspective view of a
• Wind turbine 1 comprises a standing on a foundation 2 tower 3, at its end remote from the foundation 2 a nacelle 4 is arranged.
• the machine house 4 has a machine carrier 5 or is fixed thereto, on which a rotor 6 is rotatably mounted about a rotor axis 7, which has a rotor hub 8 and several connected thereto
• Rotor blades 9, 10 and 67 (see Fig. 2) comprises, which are each mounted about a blade axis 11, 12 and 68 (see FIG. 2) rotatably mounted on the rotor hub 8.
• the rotor blades 9, 10 and 67 extend in the direction of their respective blade axis 11, 12 and 68 away from the rotor hub 8, wherein the blade axes 11, 12 and 68 extend transversely to the rotor axis 7.
• the rotor 6 is rotated by the wind 13 about the rotor axis 7 and is by means of a rotor shaft 14 with a on the machine frame fifth
• FIG. 2 A partial front view of the rotor 6 is shown in FIG. 2.
• the machine carrier 5 is rotatably mounted about a yaw axis 19 on the tower 3 and rotatable by means of a yaw drive 20 relative to the tower 3 about the yaw axis 19, which coincides here with the longitudinal axis of the tower 3.
• the yaw drive 20 is attached by means of a machine carrier 5
• the Blattwinkelverstellantriebe 17, 18 and 69 are each arranged with a rotor 6 arranged in the first control unit 22 and a fixed to the machine frame 5 second
• Control unit 23 connected. The two control units 22 and
• Machine carrier 5 is attached. Radial center in the
• Rotor hub 8 is attached to this fixed cabinet 26, in which the first control unit 22 is received.
• the rotor 6 is schematically indicated as a dashed box.
• the Blattwinkelverstellantriebe 17, 18 and 69 each have an electric motor, wherein the
• Electric motor 28 the Blattwinkelverstellantrieb 18 and the electric motor 29 is assigned to the Blattwinkelverstellantrieb 69.
• the electric motors 27, 28 and 29 are connected to both the first control unit 22 and the second control unit 23 via a switching device (motor panel) 30 and connecting lines 31, respectively.
• the connection lines include electrical power supply lines 32,
• the power supply lines 32 and the control lines 33 are about to seated on the rotor shaft 14 slip rings 35 to the second control unit 23 out.
• communication lines 34 are connected to the second control unit 23 via an optical coupling device 36 (optical interface) arranged on the rotor axis 7. Furthermore, accumulators 37 are shown, which are fastened to the outside of the control cabinet 26 and are electrically connected to the first control unit 22.
• the second control unit 23 comprises a rectifier 38, which is connected on the AC side via a mains filter 39 to a power supply device 40, which supplies the second control unit 23 with alternating current and is connected to the network 16.
• the line filter 39 may also be connected directly to the network 16, so that the
• Power supply device 40 is omitted or formed by the network 16.
• the rectifier 38 is DC side with a
• the output stage 42 is connected via the power supply lines 32 of the motor 27 with the associated switching device 30.
• Output stage 43 is connected via the power supply lines 32 of the motor 28 with the associated switching device 30. Further, the output stage 44 via the
• Power supply lines 32 of the motor 29 connected to the associated switching device 30 The motor 27 is controllable by the output stage 42, the motor 28 is controllable by the output stage 43, and the motor 29 is controllable by the output stage 44.
• the rectifier 38 and the DC bus 41 form with each of the output stages, respectively an inverter. Otherwise, however, it could also be said that the rectifier 38, the DC bus 41 and the output stages 42, 43 and 44 form an inverter having three output stages.
• the second control unit 23 comprises a controller 45, by means of which the output stages 42, 43 and 44 are controllable. Thus, it is possible to drive the motors 27, 28 and 29 of the pitch actuators 17, 18, and 69 by means of the second control unit 23. Furthermore, at the
• Accumulator 66 may be permanently electrically connected to DC bus 41 or electrically connected to DC bus 41 by controller 45 and / or input stage 38.
• Control unit 22 is rotated in the so-called flag position.
• the power is supplied to the motors 27, 28 and 29 via the accumulators 37. Since it is in the engines 27, 28 and 29 are DC motors, the
• the motors 27, 28 and 29 may also be designed as AC motors, so that the connection of the accumulators 37 with the motors 27, 28 and 29 takes place with the interposition of inverters 70, the
• the inverters are preferably provided in the switching devices 30 (see Fig. 4).
• the inverters may also be provided in the first control unit 22 or connected at a different location between the accumulators 37 and the motors 27, 28 and 29.
• the rotor blades can be turned into the flag position even if the second control unit 23 has failed and / or the accumulator 66 has been emptied.
• FIG. 4 is a schematic circuit diagram of the engine 27 associated switching device 30 can be seen, the one
• Motor shaft 46 which can be braked and / or held by a braking device 47.
• Brake device 47 is supplied via supply lines 48 with electrical energy, wherein preferably the
• Power supply lines 32 include the supply lines 48.
• the switching device 30 has a temperature monitoring 49 with a sensor 50 for detecting the temperature of the motor 27, a sensor 51 for detecting the Winkelpositon and angular velocity of the motor shaft 46 and a
• Brake control 52 by means of which the braking device 47 is controllable.
• the monitoring 49, the sensor 51 and the Controller 52 are each electrically connected to an optical communication device 53, which has a
• Interface to the communication lines 34 forms.
• the inverter 70 is shown, but can be omitted if the motor 27 is designed as a DC motor.
• Control unit 23 is electrically connected.
• the yaw drive 20 comprises two electric motors 54 and 55 which are each connected to the yaw angle control 21 via an inverter 56 or 57.
• the yaw angle controller 21 includes a plurality of controllable output stages 58, each with the
• the output stages 58 are preferably connected to the Blattwinkelverstellantrieben so that they additionally by means of the yaw angle control 21, preferably in response to a yaw movement of
• Machine carrier 5 about the yaw axis 19, are controllable.
• Switching devices 30 are assigned.
• a blade angle control device 24 according to a third embodiment of the invention can be seen, wherein the accumulators 37 are not connected to the control cabinet 26, but are arranged in the region of or on the motors 27, 28 and 29. Each of the switching devices 30 is assigned to one of the accumulators 37.
• Embodiment corresponds. Unlike the third
• Embodiment is the first control unit 22 but in
• Switching devices 30 are connected in series via the communication lines 34 and the control lines 33. With regard to the communication lines 34 and the control lines 33, the assembly effort can thus be reduced.
• FIG. 8 is a perspective view of the
• the first control unit 22 comprises one pitch control unit 64 per pitch control (see FIG. 9), wherein each of the pitch units 64 is disposed in one of the areas 61.
• the accumulators 37 can be mounted on the outer sides of the outer walls 62 .
• a perspective view of the control cabinet 26 with mounted accumulators 37 is shown in FIG. 9, in which also the partial control units 64 arranged in the areas 61
• Accumulators 37 associated with which are arranged on the outer wall 62 of the respective region 61.
• a plan view of the control cabinet 26 with accumulators 37 mounted is shown in FIG. 10, wherein the control cabinet 26 is closed by a cover 65.

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• 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)
• Fluid Mechanics (AREA)
• Wind Motors (AREA)

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• 2009
  • 2009-11-17 DE DE102009044570A patent/DE102009044570A1/de not_active Ceased
• 2010
  • 2010-10-14 KR KR1020127015619A patent/KR101486733B1/ko active IP Right Grant
  • 2010-10-14 US US13/510,223 patent/US9297360B2/en active Active
  • 2010-10-14 WO PCT/EP2010/065372 patent/WO2011061015A1/de active Application Filing
  • 2010-10-14 EP EP10771693A patent/EP2501931A1/de not_active Withdrawn
  • 2010-11-16 CN CN2010206123159U patent/CN202260139U/zh not_active Expired - Lifetime
  • 2010-11-16 CN CN201510337283.3A patent/CN104967011B/zh not_active Expired - Fee Related
  • 2010-11-17 CN CN201010554593.8A patent/CN102062057B/zh active Active
  • 2010-11-17 CN CN2010206152645U patent/CN202055998U/zh not_active Expired - Fee Related

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