WO2023092780A1 - Générateur éolien intégré - Google Patents

Générateur éolien intégré Download PDF

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Publication number
WO2023092780A1
WO2023092780A1 PCT/CN2021/140438 CN2021140438W WO2023092780A1 WO 2023092780 A1 WO2023092780 A1 WO 2023092780A1 CN 2021140438 W CN2021140438 W CN 2021140438W WO 2023092780 A1 WO2023092780 A1 WO 2023092780A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
rotor
end cover
gearbox
integrated wind
Prior art date
Application number
PCT/CN2021/140438
Other languages
English (en)
Chinese (zh)
Inventor
李岩
车三宏
李华
王庆兵
龙英睿
梁双全
Original Assignee
中车株洲电机有限公司
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 中车株洲电机有限公司 filed Critical 中车株洲电机有限公司
Publication of WO2023092780A1 publication Critical patent/WO2023092780A1/fr

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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
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of motors, in particular to an integrated wind power generator.
  • Wind turbines This kind of wind power generating set can be roughly divided into three parts: the wind wheel, the generator and the tower.
  • the wind wheel rotates under the wind force, and the gear box drives the generator to rotate to generate electricity.
  • Both ends of the generator rotor are supported on the machine base by bearings and end covers, and the generator is equipped with shafting and other components separately.
  • the design also needs to consider issues such as generator grease, lubricating oil selection, bearing model and service life, and sealing; At the same time, the structure of the generator end cover and the inner and outer bearing covers is complex, and castings are mostly used, and molds need to be opened separately; in addition, the installation of bearings requires high processing precision for parts such as end covers, bearing chambers, bearing inner and outer covers, and bushings, and these factors are greatly increased. reduce the design and manufacturing costs of wind turbines.
  • the purpose of this application is to provide an integrated wind power generator, which reduces the weight of the generator, shortens the axial length of the generator, reduces the production cost, reduces the difficulty of assembly, and facilitates later maintenance .
  • the present application provides an integrated wind power generator, including a gear box and a generator coaxially connected with the output shaft of the gear box, and the end of the generator connected to the gear box is provided with a support end Cover and support bearing, the support end cover is used to seal and isolate the generator and the gearbox, the output shaft of the gearbox extends into the generator and is connected with the rotor of the generator, the The support bearing is used to support the output shaft of the gearbox.
  • the generator includes a stator frame, a stator, a rotor, a rear end cover and a rear bearing, and the support end cover and the support bearing are arranged at the front end of the generator and at the rear of the gearbox end.
  • the output shaft of the gearbox and the rotor are fixedly connected through a generator adapter plate.
  • the rear end cover is provided with a brake disc for braking the rotor.
  • the rotor is fixedly connected to the rotor bracket and the bracket transition ring, and the brake disc is arranged on the outer periphery of the bracket transition ring.
  • a generator cooler for cooling the generator is also included.
  • the generator cooler is an air-cooled cooler.
  • the generator cooler is arranged on the periphery of the stator frame or the generator cooler is arranged on the rear end cover.
  • the integrated wind power generator provided by this application includes a generator and a gearbox.
  • the integrated wind power generator has a compact structure, so that one end of the generator and the output end of the gearbox share a support end cover and a support The bearing greatly reduces the weight of the generator.
  • the output shaft of the gearbox is inserted into the generator to drive the rotor to rotate.
  • the rotor shaft of the generator is eliminated, and the axial length of the generator is shortened. Higher maintainability and more advantages in product cost.
  • the integrated wind turbine reduces the difficulty of motor assembly and improves the production efficiency of the generator.
  • Fig. 1 is the schematic diagram of the integrated wind power generator provided by the present application.
  • Fig. 2 is a structural diagram of the generator in Fig. 1 .
  • 11-output shaft 21-stator base, 22-stator, 23-rotor, 24-generator adapter plate, 25-rotor bracket, 26-bracket transition ring, 27-brake disc, 28-rear end cover, 29 - Rear bearing, 210 - Alternator cooler.
  • Fig. 1 is the schematic diagram of the integrated wind power generator provided by the present application
  • Fig. 2 is the structural diagram of the generator in Fig. 1, and this figure omits the transmission part of gearbox 1, only keeps The rear end cover of the gearbox 1 also supports the end cover 3 and the output shaft 11 .
  • the embodiment of the present application provides an integrated wind power generator, including a generator 2 and a gear box 1, and the generator 2 and the gear box 1 share a support end cover 3 and a support bearing 4, which greatly reduces the weight of the generator 2 and utilizes
  • the output shaft 11 of the gearbox 1 extends into the generator 2 to drive the rotor 23 to run, the shafting of the generator 2 is canceled, the axial length of the generator 2 is shortened, the reliability of the generator 2 is higher, and the later maintainability is better High, product cost is more advantageous.
  • the compact integrated wind power generator reduces the difficulty of motor assembly and improves the production efficiency of the generator 2 .
  • the shaft system of the gearbox 1 includes at least an input shaft and an output shaft 11 connected to the input shaft through multi-stage gear transmission.
  • the input shaft is used to connect the fan blades
  • the output shaft 11 is used to connect and drive the generator 2 rotor 23.
  • Generator 2 comprises stator frame 21, the stator 22 that is arranged in stator frame 21 and the rotor 23 that is arranged on stator 22 inner periphery, and rotor 23 is connected with the output shaft 11 of gear box 1 that prolongs setting, and the rear end of rotor 23 Rear end cover 28 is set, and rear bearing 29 is provided as required (rear bearing 29 also can be canceled), and the rear end of generator 2 is sealed by rear end cover 28.
  • the generator 2 and the gear box 1 also include a supporting end cover 3 and a supporting bearing 4 shared by the two, the output shaft 11 of the gear box 1 is coaxially connected with the rotor 23 of the generator 2, the output shaft passes through the supporting end cover 3 and can Supported by the supporting bearing 4, the supporting end cover 3 plays the role of sealing the front end of the generator 2 and the rear end of the gearbox 1, and the rear end cover 28 isolates the generator 2 and the gearbox 1.
  • the output shaft 11 of the gearbox 1 and the rotor 23 of the generator 2 can be fixed coaxially through the generator adapter plate 24 .
  • the front end of the generator 2 shares the support end cover 3 with the gearbox 1
  • the output shaft 11 passes through the support end cover 3 and is supported by the support bearing 4
  • the rotor 23 is connected to the rotor bracket 25, and the rotor bracket 25 is provided with gears and
  • the front flange end surface of the stator base 21 is provided with a threaded hole and a notch connected with the gearbox 1 and the supporting end cover 3, the stator base 21 passes through the supporting end cover 3 It is assembled with the gear box 1.
  • the rotor 23 of the generator 2 is driven to rotate by the output shaft 11 of the gearbox 1 to convert mechanical energy into electrical energy.
  • the rotor bracket 25 can be a welded casting, and the connection method is bolts or bolts with pins to connect the rotor 23 .
  • the rotor bracket 25 can also be transferred and connected with reference to the specifications and standards of the prior art.
  • the rotor bracket 25 is also provided with a bracket transition ring 26 , the outer periphery of the bracket transition ring 26 is connected to a brake disc 27 , and the brake disc 27 acts on the bracket transition ring 26 to brake the rotor 23 in a specific state.
  • the rotor bracket 25 can also be connected to the output shaft 11 of the gearbox 1 through an adapter flange.
  • the bracket transition ring 26 and the rotor bracket 25 can be integrally cast and formed as an integral structure, or can be set as a split structure. The detachable connection is performed through connecting parts such as bolts, which is not specifically limited in the present application.
  • the integrated wind generator in order to prevent the integrated wind generator from generating heat during long-term operation, also includes a generator for cooling the generator 2, especially the stator 22 of the generator 2. machine cooler 210.
  • the generator cooler 210 can be arranged on the periphery of the stator frame 21 as shown in FIG. Execute with reference to existing technical standards. It should be noted that the generator cooler 210 here is not limited to an air-cooled cooler, and for a high-power, large-capacity integrated wind turbine, the generator cooler 210 may also use a liquid-cooled or water-cooled cooler.
  • the integrated wind power generator provided by this application integrates the gearbox 1 and the generator 2, the output shaft 11 of the gearbox 1 and the rotor 23 of the generator 2 are coaxially connected, and the supporting end cover 3 and the supporting bearing 4 are powered by the generator.
  • the motor 2 and the gearbox 1 are shared, that is, the support end cover 3 serves as both the rear end cover of the gearbox 1 and the front end cover of the generator 2, and the support bearing 4 serves as both the rear bearing of the gearbox 1 and the generator 2
  • the front bearing is shared by the support end cover 3 and the support bearing 4, the output shaft 11 replaces the shafting of the generator 2, shortens the axial length of the generator 2, the rotor 23 of the generator 2 and the output shaft 11 of the gearbox 1 connected, driven by the output shaft 11 of the gearbox 1, the rotor 23 is driven to generate electricity.
  • the above-mentioned integrated wind power generator omits part of the shafting structure of the generator 2, and the output shaft 11 of the gearbox 1 is extended into the generator 2 to drive the rotor 23 to run, which simplifies the structure of the generator 2 and improves the assembly efficiency and post-production efficiency. Ease of maintenance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un générateur éolien intégré, comprenant une boîte de vitesse et un générateur relié de manière coaxiale à un arbre de sortie de la boîte de vitesse ; l'extrémité du générateur reliée à la boîte de vitesse est pourvue d'un couvercle d'extrémité de support et d'un palier de support ; le couvercle d'extrémité de support est utilisé pour sceller le générateur et la boîte de vitesse et isoler le générateur de la boîte de vitesse ; l'arbre de sortie de la boîte de vitesse s'étend dans le générateur et est relié à un rotor du générateur ; et le palier de support est utilisé pour supporter l'arbre de sortie de la boîte de vitesse. Avec le générateur éolien intégré de la présente invention, le poids du générateur est réduit, la longueur axiale du générateur est raccourcie, les coûts de production sont réduits, la difficulté d'assemblage est réduite, et une maintenance ultérieure est facilitée.
PCT/CN2021/140438 2021-11-26 2021-12-22 Générateur éolien intégré WO2023092780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122941564.3 2021-11-26
CN202122941564.3U CN216077415U (zh) 2021-11-26 2021-11-26 一种一体式风力发电机

Publications (1)

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WO2023092780A1 true WO2023092780A1 (fr) 2023-06-01

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WO (1) WO2023092780A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089542A (zh) * 2011-10-28 2013-05-08 华锐风电科技(集团)股份有限公司 风力发电机组传动系统与风力发电机组
CN208010523U (zh) * 2018-02-08 2018-10-26 明阳智慧能源集团股份公司 一种风力发电机组紧凑型传动链结构
EP3640473A1 (fr) * 2017-06-14 2020-04-22 Shandong CRRC Wind Turbine Co. Ltd Système de transmission pour ensemble de production d'énergie éolienne semi-directe
CN112963314A (zh) * 2021-02-25 2021-06-15 上海电气风电集团股份有限公司 风力发电机组及其传动装置
CN113217612A (zh) * 2021-06-08 2021-08-06 北京三力新能科技有限公司 一种用于风力发电机的齿轮箱与发电机集成方案

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089542A (zh) * 2011-10-28 2013-05-08 华锐风电科技(集团)股份有限公司 风力发电机组传动系统与风力发电机组
EP3640473A1 (fr) * 2017-06-14 2020-04-22 Shandong CRRC Wind Turbine Co. Ltd Système de transmission pour ensemble de production d'énergie éolienne semi-directe
CN208010523U (zh) * 2018-02-08 2018-10-26 明阳智慧能源集团股份公司 一种风力发电机组紧凑型传动链结构
CN112963314A (zh) * 2021-02-25 2021-06-15 上海电气风电集团股份有限公司 风力发电机组及其传动装置
CN113217612A (zh) * 2021-06-08 2021-08-06 北京三力新能科技有限公司 一种用于风力发电机的齿轮箱与发电机集成方案

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