WO2011126397A1 - Wind-driven power plant - Google Patents

Wind-driven power plant Download PDF

Info

Publication number
WO2011126397A1
WO2011126397A1 PCT/RU2010/000751 RU2010000751W WO2011126397A1 WO 2011126397 A1 WO2011126397 A1 WO 2011126397A1 RU 2010000751 W RU2010000751 W RU 2010000751W WO 2011126397 A1 WO2011126397 A1 WO 2011126397A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
rotation
frequency
gearbox
windwheels
Prior art date
Application number
PCT/RU2010/000751
Other languages
French (fr)
Inventor
Anatoly Georgievich Bakanov
Renat Kaydarovich Abinaev
Elena Lvovna Tikhonova
Original Assignee
Anatoly Georgievich Bakanov
Renat Kaydarovich Abinaev
Elena Lvovna Tikhonova
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anatoly Georgievich Bakanov, Renat Kaydarovich Abinaev, Elena Lvovna Tikhonova filed Critical Anatoly Georgievich Bakanov
Publication of WO2011126397A1 publication Critical patent/WO2011126397A1/en

Links

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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors coaxially arranged
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/02—Casings
    • 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
    • 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
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • 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
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F05B2270/1014—Purpose of the control system to control rotational speed (n) to keep rotational speed constant
    • 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
    • Y02E10/20—Hydro energy
    • 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 human ear can normally perceive vibrations within 16- 20000 Hz. Negative consequences can be caused not only by excessive noise in the audible range of frequencies but also by infra-sound in the range not perceived by the human ear from 16 Hz up to 0.001 Hz. Infrasound causes nervous strain, feeling of uneasiness, dizziness, change in the activity of internal parts of the body, especially nervous and cardiovascular systems. The most dangerous are the frequencies in the range of 6-9 Hz.
  • Considerable psychotropic effects are caused at a frequency of 7 Hz which is similar to alpha rhythm of brain natural vibrations. In this case any mental activity becomes impossible and the human feels as if his head were splitting into small pieces.
  • Low-intensity sound induces nausea, ringing in the ears, deterioration of eyesight and an uprush of fear.
  • Medium-intensity sound affects digestive apparatus and brain, resulting in paralysis, general weakness and even blindness.
  • the design of the wind-powered generator with three blade windwheel and horizontal rotational axis is the most wide spread in the world.
  • three blade windwheel is rotating at a frequency of 100 RPM and blades are passing by WDPP tower, the vibrations at a frequency of 5 Hz occur.
  • the vibrations of 3.3 Hz occur during rotation of two blade windwheel with the same angular speed, and 8.3 Hz vibrations during rotation of five-blade windwheel.
  • the possible technical solutions to eliminate the cause of low-frequency vibrations during wind-driven power plant operation can be an increase in number of blades or windwheel rotation speed.
  • the automatic windwheel speed frequency adjustment is used in wide range of air flow speeds. Adjustment is performed by control of windwheel blade angle.
  • the object of the invention is to enhance wind-driven power plant operating characteristics due to environmental safety and more simple construction of electric generator by means of excluding gearbox units and speed variators.
  • the technical result is prevention of infra-sound occurrence and improvement of power supply consistency.
  • the technical result is achieved by the fact that in wind- driven power plant including the tower-installed wind turbine with two coaxial multiblade horizontal axis windwheels and the pivot housing with an electric generator and a gearbox connected to the electric generator shaft- and windwheel shafts equipped with the blade angle control system, the windwheels are mounted on the same side of the axis of rotation of housing on coaxial shafts and completed using a plurality of blades provided that zj.
  • the gearbox may be adapted to maintain an output shaft frequency of 1500 or 1800 RPM at a wind speed of 3-15 m/s.
  • Fig.l shows a block diagram of WDPP
  • Fig.2-4 shows t kinematic diagrams of the gearbox maintaining rotation frequency at the output shaft of 1500 or 1800 RPM at a wind speed of 3-15 m/s.
  • Fig.2 and Fig.3 are kinematic diagrams of the gearbox for wind turbine with unidirectional windwheel;
  • Fig. 4 is a kinematic diagram of the gearbox for wind turbine with contra-rotating windwheels.
  • the windwheel shaft 8 is not rotating along with the wheel b.
  • the shaft 8 rotates together with two rims of the wheel b.
  • the torque from the shaft 7 is transmitted through the first satellite gear g to the small central wheel a 2 .
  • the rotation speeds of satellite gear and the first rim of b wheel are summarized.
  • the moment is transmitted to the second satellite g through the carrier gear. Due to engagement of the second rim of the wheel b and the second satellite g, the rotation speeds are summarized again, and the sum is transmitted to the central output wheel ai and shaft 9.
  • the shaft 8 rotates along with the bevel gear 11 fastened onto the shaft.
  • the torque from the shaft 8 is transmitted through the intermediate wheels 12 and 13 to the wheel b, and the direction of rotation is changed to the opposite.
  • the torque from the shaft 7 is transmitted to the small wheel of satellite f through the wheel e.
  • the speeds are summarized due to engagement of the wheel b to which the torque from the shaft 8 and the big wheel of satellite g is transmitted. Then the overall torque is transmitted to the central output wheel a and the shaft 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

The invention relates to wind power engineering, in particular, horizontal axis multiblade wind-powered generators, and may be used for wind-driven power plants to improve environmental safety and more simple construction of electric generator by means of excluding gearbox units and speed variators. The wind-driven power plant includes a tower-installed wind turbine with two coaxial multiblade horizontal axis windwheels and a pivot housing with an electric generator and a gearbox. Windwheels are equipped with a blade angle control system, mounted on the same side of the axis of rotation of housing on coaxial shafts and completed using a plurality of blades. The gearbox is made in the form of a differential device. The blade angle control system is equipped with a output shaft frequency rotation control system and is adapted to maintain a permanent frequency of rotation of 1500 or 1800 RPM at a wind speed of 3-15 m/s.

Description

WIND-DRIVEN POWER PLANT
The invention relates to wind power engineering, in particular, horizontal axis multiblade wind-powered generators, and may be used for wind-driven power plants (WDPP) .
Wind power engineering is a fast-growing industry. The total installed capacity of all wind-powered generators has increased six times since 2000, and in 2009, it was 157 gigawatts .
One of the operational problems of wind power engineering is aerodynamic noise, i.e. a noise due to interaction of wind flow with plant blades and low-frequency vibrations caused by blade passing by WDPP tower.
The human ear can normally perceive vibrations within 16- 20000 Hz. Negative consequences can be caused not only by excessive noise in the audible range of frequencies but also by infra-sound in the range not perceived by the human ear from 16 Hz up to 0.001 Hz. Infrasound causes nervous strain, feeling of uneasiness, dizziness, change in the activity of internal parts of the body, especially nervous and cardiovascular systems. The most dangerous are the frequencies in the range of 6-9 Hz. Considerable psychotropic effects are caused at a frequency of 7 Hz which is similar to alpha rhythm of brain natural vibrations. In this case any mental activity becomes impossible and the human feels as if his head were splitting into small pieces. Low-intensity sound induces nausea, ringing in the ears, deterioration of eyesight and an uprush of fear. Medium-intensity sound affects digestive apparatus and brain, resulting in paralysis, general weakness and even blindness.
The design of the wind-powered generator with three blade windwheel and horizontal rotational axis is the most wide spread in the world. When three blade windwheel is rotating at a frequency of 100 RPM and blades are passing by WDPP tower, the vibrations at a frequency of 5 Hz occur. The vibrations of 3.3 Hz occur during rotation of two blade windwheel with the same angular speed, and 8.3 Hz vibrations during rotation of five-blade windwheel.
At present, the issue of infrasound is being considered at the legislative level by defining a minimum distance between wind-driven power plant and residential houses, but the problem still remains.
The possible technical solutions to eliminate the cause of low-frequency vibrations during wind-driven power plant operation can be an increase in number of blades or windwheel rotation speed.
Increase of windwheel rotation speed depends on wind force characterized by high changeability. Variable nature of wind force is a cause of inconsistent supply of power from wind- powered generator to power system creating another operational problem of wind power engineering.
One of the known approaches to this problem is introduction to wind-driven power plant of the supplementary units, for example, pneumatic power accumulation unit (description for patent RU 2304232 ΜΠΚ F03D 7/02 (2006.01)) or electrochemical battery unit (description RU 2336433 ΜΠΚ F03D 7/04 (2006.01) . Introduction of supplementary units makes the construction of DPP more complicated, and the problem of infrasound remains unresolved.
To increase consistency of power supply from a wind-powered generator to the power system, the automatic windwheel speed frequency adjustment is used in wide range of air flow speeds. Adjustment is performed by control of windwheel blade angle.
There is a well-known wind-driven power plant "Raduga-1" (manufacturer - Tushinsky machine building plant, OJSC) with three blade windwheel installed on the tower swing mount and equipped with blade angle control system. The known construction of WDPP ensures its main technical characteristics at the variable frequency of windwheel rotation of 21-42 RPM which does not resolve completely the problem of power supply to power system, and when the blade passes by the tower of WDPP the low-frequency vibrations of 1.05-2.1 Hz occur respectively.
There is also a wind-driven power plant containing a pivot head with a gearbox installed on the tower connected to an electric generator shaft and a horizontal shaft on which two windwheels are mounted at different distances from the axis of rotation of the pivot head having at least three radial blades fixed on axes and equipped with a rotation angle control system (description to patent RU 2210001, ΜΠΚ7 F03D 7/02) .
In the well-known construction the second windwheel has mainly the function of orientation and in a less degree a forcing function which decreases efficiency coefficient. The location of windwheels on the same shaft makes it more difficult to control rotation frequency and consequently the electric generator shaft. The electric generator shaft speed defines output voltage fluctuations.
The object of the invention is to enhance wind-driven power plant operating characteristics due to environmental safety and more simple construction of electric generator by means of excluding gearbox units and speed variators.
The technical result is prevention of infra-sound occurrence and improvement of power supply consistency.
The technical result is achieved by the fact that in wind- driven power plant including the tower-installed wind turbine with two coaxial multiblade horizontal axis windwheels and the pivot housing with an electric generator and a gearbox connected to the electric generator shaft- and windwheel shafts equipped with the blade angle control system, the windwheels are mounted on the same side of the axis of rotation of housing on coaxial shafts and completed using a plurality of blades provided that zj. · Z2 > f /coc, where zi and Z2 - the number of blades on the first and second windwheels accordingly; f - safe frequency of infrasound of minimum 10 Hz; ac = GOi +ω∑ - wind turbine relative rotational frequency, coi M 0)2 - rotational frequency of the first and second windwheel, RPS.
The gearbox is made in the form of differential device and the blade angle control system is further equipped with an output shaft frequency rotation control system and adapted to maintain the permanent frequency of rotation.
The gearbox may be adapted to maintain an output shaft frequency of 1500 or 1800 RPM at a wind speed of 3-15 m/s.
Windwheels may be adapted to ensure the rotation in one direction or two opposite directions.
Fig.l shows a block diagram of WDPP; Fig.2-4 shows t kinematic diagrams of the gearbox maintaining rotation frequency at the output shaft of 1500 or 1800 RPM at a wind speed of 3-15 m/s. Fig.2 and Fig.3 are kinematic diagrams of the gearbox for wind turbine with unidirectional windwheel; Fig. 4 is a kinematic diagram of the gearbox for wind turbine with contra-rotating windwheels.
The wind-driven power plant showed in Fig. 1 includes a wind turbine 1 with two windwheels mounted on coaxial shafts, a differential reduction gearbox 2, an electric generator 3, a windwheel blades control system 4, a gearbox output shaft rotation frequency control system 5 and anatmospheric measurements block 6.
Windwheel shafts are connected to gearbox input shafts. The output shaft of the gearbox is coupled with the electric generator shaft. The entire power generating unit is located in the housing on a swing bearing unit 7 of the tower.
Windwheels are mounted on the same side of the axis of rotation of housing and have a plurality of blades provided that Zi · z2 > f /G)c, where Zi and z2 - the number of blades on the first and second windwheels accordingly; f - safe frequency of infrasound of minimum 10 Hz; ωα = ωχ +ω2 ~ wind turbine relative rotational frequency, coi M ω2 - rotational frequency of the first and second windwheel, RPS.
To meet the condition of noise emission no less than 10 Hz a wind turbine with a nominal power of 1000 kilowatt and operating windwheel rotation frequency coi = 0,317 RPS, ω2 = 0, 383 RPS, coc=0,7 RPS shall comprise zx and z2 - number of blades on the first and second windwheels which meet the following requirement: z i z2> 10/0,7 >14,3. This requirement is met by windwheels with 3 and 5 blades, 4 and 5 blades on each windwheel, etc.
Two windwheels on coaxial shafts 7,8 coupled with windwheel blade angle control system, gearbox and output shaft rotation frequency control system 9 make it possible the rotation of electric generator shaft with the permanent frequency at different speeds of air flow. The relevant revolution sensor records changes in the gearbox output shaft rotation frequency 9 and electric generator input shaft rotation frequency, and sends the signal to the automatic blade control system. Operating windwheel and input shaft gearbox rotation is obtained by adjusting blade angles.
Kinematic diagrams (Fig. 2, 3, 4) of gearboxes with a diameter of gear wheels in a specified scale show plans representing variation of rotational velocities and number of rotations .
On the diagrams (Fig. 2, 4) the rotations of the first wheel (coi) increase by 3.67 times as the wind speed becomes 5 times higher. Rotations of the second windwheel (ω2) increase from zero up to (ω2 = 0,82 coi) . On the diagram (Fig. 3) at the same ratio of wind speeds the rotations of the first rotor (coi) increase twice and rotations of the second rotor (ω2) increase from zero up to (ω2 = 0,75 ωχ) . The number of electric generator shaft rotations remains constant. The gearbox operation (Fig. 2) at the minimum operating wind speed and unidirectional windwheel rotation is performed as follows :
The windwheel shaft 8 is not rotating along with the wheel b.
The torque from the wind turbine shaft 7 is transmitted to the small wheel of satellite gear f through the wheel e. Due to engagement of the immovable wheel b and a big satellite wheel g, the rotation is transmitted to the central output wheel a and the shaft 9.
The torque from the shaft 7 is transmitted to the small wheel of satellite gear f through the wheel e at the nominal wind speed. Due to engagement of the wheel b, onto which the torque from the shaft 8 and the big satellite wheel g is transmitted, the speeds of these wheels are summarized. Then the overall torque is transmitted to the central output wheel a and the shaft 9.
According to the second version of kinematic diagram (Fig. 3) , the gearbox operation at the minimum operating wind speed and unidirectional windwheel rotation is performed as follows:
The shaft 8 does not rotate along with two rims of the wheel b. The torque from the shaft 7 is transmitted via the first satellite gear g to the small central wheel a∑ and further via the carrier gear to the second satellite g. Due to engagement of the second immovable rim of the wheel b and the second satellite gear g, the rotation is transmitted to the output central wheel ax and the shaft 9.
At the nominal wind speed, the shaft 8 rotates together with two rims of the wheel b. The torque from the shaft 7 is transmitted through the first satellite gear g to the small central wheel a2. At this moment, the rotation speeds of satellite gear and the first rim of b wheel are summarized. Then the moment is transmitted to the second satellite g through the carrier gear. Due to engagement of the second rim of the wheel b and the second satellite g, the rotation speeds are summarized again, and the sum is transmitted to the central output wheel ai and shaft 9.
During contra-rotation of windwheels, the operation of the gearbox (Fig. 4) at the minimum operating wind speed is performed as follows:
The shaft 8 does not rotate together with wheels 11, 13, b and the intermediate wheels 12.
The torque is transmitted from the shaft 7 through the wheel e to the small wheel of satellite gear f. Due to engagement of the immovable wheel b and a big wheel of satellite g, the rotation is transmitted to the central output wheel a and the shaft 9.
At the nominal wind speed, the shaft 8 rotates along with the bevel gear 11 fastened onto the shaft. The torque from the shaft 8 is transmitted through the intermediate wheels 12 and 13 to the wheel b, and the direction of rotation is changed to the opposite. The torque from the shaft 7 is transmitted to the small wheel of satellite f through the wheel e. The speeds are summarized due to engagement of the wheel b to which the torque from the shaft 8 and the big wheel of satellite g is transmitted. Then the overall torque is transmitted to the central output wheel a and the shaft 9.

Claims

1. Wind-driven power plant including a tower-installed wind turbine with two coaxial multiblade horizontal axis windwheels and a pivot housing with an electric generator and a gearbox connected with an electric generator shaft and windwheel shafts equipped with a blade angle control system , characterized in that the windwheels are mounted on the same side of the axis of rotation of housing on coaxial shafts and completed using a plurality of blades provided that zi · z2 > f / Qc, where zi and z2 - the number of blades on the first and second windwheels accordingly;
f - safe frequency of infra-sound of minimum 10 Hz;
coc = ωι +(02 - wind turbine relative rotational frequency, c i M CO2 — rotational frequency of the first and second windwheel, RPS.
2. The plant as recited in claim 1, wherein the gearbox is made in the form of a differential device and the blade angle control system is equipped with an output shaft frequency rotation control system to maintain the permanent frequency of rotation.
3. The plant as recited in claim 2, wherein the gearbox is adapted to to maintain an output shaft frequency of 1500 or 1800 RPM at a wind speed of 3-15 m/s.
4. The plant as recited in claim 1, wherein the windwheels are adapted to ensure the rotation in one or reverse direction .
PCT/RU2010/000751 2010-04-08 2010-12-13 Wind-driven power plant WO2011126397A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2010113591/06A RU2463475C2 (en) 2010-04-08 2010-04-08 Wind-driven power plant
RU2010113591 2010-04-08

Publications (1)

Publication Number Publication Date
WO2011126397A1 true WO2011126397A1 (en) 2011-10-13

Family

ID=44763140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2010/000751 WO2011126397A1 (en) 2010-04-08 2010-12-13 Wind-driven power plant

Country Status (2)

Country Link
RU (1) RU2463475C2 (en)
WO (1) WO2011126397A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374806A (en) * 2019-09-02 2019-10-25 中国船舶重工集团海装风电股份有限公司 Wind power generating set load shedding control method and wind power generating set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016010450A1 (en) * 2014-07-16 2016-01-21 Анатолий Георгиевич БАКАНОВ Dual rotor wind power assembly (variants)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589201A1 (en) * 1985-10-25 1987-04-30 Pelletier Jean Claude Wind machine with contrarotating rotors and adjustment of the blade orientation
JP2005036749A (en) * 2003-07-17 2005-02-10 Fuji Heavy Ind Ltd Horizontal axis windmill and its control method
US20060093482A1 (en) * 2002-09-17 2006-05-04 Andre Wacinski Drive device for a windmill provided with two counter-rotating screws
JP2007321659A (en) * 2006-06-01 2007-12-13 Kubota Denki:Kk Wind power generator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2280192C2 (en) * 2001-04-12 2006-07-20 Вениамин Яковлевич Вейнберг Wind converter
RU2210001C1 (en) * 2001-11-28 2003-08-10 Плешанов Евгений Васильевич Windmill-electric power unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589201A1 (en) * 1985-10-25 1987-04-30 Pelletier Jean Claude Wind machine with contrarotating rotors and adjustment of the blade orientation
US20060093482A1 (en) * 2002-09-17 2006-05-04 Andre Wacinski Drive device for a windmill provided with two counter-rotating screws
JP2005036749A (en) * 2003-07-17 2005-02-10 Fuji Heavy Ind Ltd Horizontal axis windmill and its control method
JP2007321659A (en) * 2006-06-01 2007-12-13 Kubota Denki:Kk Wind power generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110374806A (en) * 2019-09-02 2019-10-25 中国船舶重工集团海装风电股份有限公司 Wind power generating set load shedding control method and wind power generating set

Also Published As

Publication number Publication date
RU2463475C2 (en) 2012-10-10
RU2010113591A (en) 2011-10-20

Similar Documents

Publication Publication Date Title
US5876181A (en) Multi-unit rotor blade system integrated wind turbine
JP5101689B2 (en) Wind power generator and yaw rotation control method for wind power generator
CA2741933C (en) Gear set, wind turbine incorporating such a gear set and method of servicing a wind turbine
EP2169219B1 (en) System and method for controlling a wind turbine during loss of grid power and changing wind conditions
US10451029B2 (en) Dual rotor wind power assembly (variants)
JP2004353637A (en) Self-rotating blade/vertical shaft type wind mill
JP2005528556A5 (en)
JP2003129935A (en) Wind power generator
WO2018204452A1 (en) System and method for reducing wind turbine rotor blade loads
JP6388759B2 (en) Floating wind power generator
WO2011126397A1 (en) Wind-driven power plant
EP3404257B1 (en) System and method for controlling a pitch angle of a wind turbine rotor blade
CN102713275B (en) Wind turbine
KR102009596B1 (en) Multi type wind turbine and control mehtod of the same
CN103541865B (en) Double-rotor wind power or water turbine
JP6836769B2 (en) Fluid machinery and power generators
JP4546097B2 (en) Wind power generator
JP4541282B2 (en) Wind power generator
Kotulski et al. Comparison of requirements for vibration-based condition monitoring of a vertical-axis vs. horizontal-axis wind turbine
CN202560486U (en) Yaw drive mechanism of wind-driven generator
CN113503225B (en) Resonance crossing method for series connection type homodromous double-impeller wind generating set
JPH0666360A (en) Traction drive step-up gear for windmill generator
CN116085186A (en) Shockproof power generation device
CN113503224B (en) Resonance crossing method for series-type reverse-rotation double-impeller wind generating set
CN102644561A (en) Yaw transmission mechanism of wind driven generator

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10849563

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10849563

Country of ref document: EP

Kind code of ref document: A1