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WO2013003985A1 - 一种大型盘式多定子永磁直驱风力发电机组 - Google Patents

一种大型盘式多定子永磁直驱风力发电机组 Download PDF

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Publication number
WO2013003985A1
WO2013003985A1 PCT/CN2011/001210 CN2011001210W WO2013003985A1 WO 2013003985 A1 WO2013003985 A1 WO 2013003985A1 CN 2011001210 W CN2011001210 W CN 2011001210W WO 2013003985 A1 WO2013003985 A1 WO 2013003985A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
coil
permanent magnet
drive wind
magnet direct
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.)
Ceased
Application number
PCT/CN2011/001210
Other languages
English (en)
French (fr)
Inventor
施文江
肖珊彩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guodian United Power Technology Co Ltd
Original Assignee
Guodian United Power Technology Co Ltd
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 Guodian United Power Technology Co Ltd filed Critical Guodian United Power Technology Co Ltd
Priority to DE112011100061T priority Critical patent/DE112011100061T5/de
Priority to US13/391,620 priority patent/US20130181455A1/en
Publication of WO2013003985A1 publication Critical patent/WO2013003985A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/82—Arrangement of components within nacelles or towers of electrical components
    • 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
    • F03D15/20—Gearless transmission, i.e. direct-drive
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
    • 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
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7066—Application in combination with an electrical generator via a direct connection, i.e. a gearless transmission
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7068—Application in combination with an electrical generator equipped with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • 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 present invention relates to a disc type wind power generator, and more particularly to a large disc type multi-stator permanent magnet direct drive wind power generator set.
  • the technical problem to be solved by the present invention is to provide a large-disc multi-stator permanent magnet direct-drive wind turbine generator, which is reduced in size, weight and cost, thereby overcoming the large size of the existing large permanent magnet direct-drive wind turbine generator set. , heavy weight, high cost and so on.
  • the present invention relates to a large-disc multi-stator permanent magnet direct-drive wind power generator, which mainly comprises a hub, a rotor shaft, a fixed shaft, a frame, a casing and a plurality of power generating units stacked in front and rear, wherein
  • the fixed shaft is fixed to the frame;
  • the rotor shaft is coupled to the hub and rotatably mounted on the fixed shaft by bearings;
  • each power generating unit includes a disc coil, and permanent magnets on both sides of the disc coil;
  • the disc coil of the power generating unit is fixedly connected to the housing, each disc
  • the coil has a plurality of coils in a rectangular spiral shape, and the windings of the coils are connected in series, and the ends of the windings after the series are led to the outside of the casing and connected in series or in parallel with other disc coils;
  • a power generation unit constitutes the power generation part of the entire unit.
  • the permanent magnet is connected to the rotor shaft through a
  • the disc coil, the rotor turntable and the casing described in the present invention are each composed of two semicircular structures.
  • the disc coil includes a plurality of rectangular spiral turns made of a printed circuit board or embedded in a coil disk.
  • the permanent magnets are arranged radially on the rotor turntable.
  • the rotor shaft is mounted on the fixed shaft through the front and rear bearings.
  • a sleeve is also disposed between the fixed shaft and the front and rear bearings.
  • the rotor turntable is assembled with the rotor shaft by bolts, lock nuts and locating pins.
  • the hub is fastened to the front end of the rotor shaft by bolts.
  • the inner surface of the casing is provided with a coil mounting groove, and each of the coil mounting slots is provided with a coil locking ring, a top tightening bolt and a coil pressing block, and the components fix the disc coil in the mounting groove of the casing .
  • the large-disc multi-stator permanent magnet direct-drive wind turbine of the present invention utilizes the inner space of the rotor which is basically idle in the conventional direct-drive wind turbine, and greatly increases the power density of the generator, thereby reducing
  • the radial and axial dimensions of large permanent magnet direct drive wind turbines are reduced and provide an effective way to significantly reduce the weight and cost of the generator set.
  • 1 is a schematic structural view of a large-disc multi-stator permanent magnet direct-drive wind power generator of the present invention.
  • 2 is a structural schematic view of a wire loop fixing assembly of a large-disc multi-stator permanent magnet direct-drive wind power generator of the present invention.
  • Figure 3 is a schematic view of the B-B direction of Figure 2;
  • Fig. 4 is a structural schematic view showing the turntable fixing assembly of the large-disc multi-stator permanent magnet direct-drive wind power generator of the present invention.
  • Figure 5 is a schematic view of the direction A in Figure 4.
  • a large-disc multi-stator permanent magnet direct-drive wind turbine of the present invention mainly comprising a hub 1, a rotor shaft 5, a fixed shaft 11, a frame 16, a housing 8, and a plurality of It consists of power units stacked in front and rear.
  • the fixed shaft 11 is fixed to the frame 16 by a shaft nut 15, and the hub 1 is fastened to the front end of the rotor shaft 5 by bolts.
  • the front end of the front end of the rotor shaft 5 is provided with a front end cover 4 for sealing the bearing.
  • the rotor shaft 5 is rotatably mounted on the fixed shaft 11 through the front bearing 3 and the rear bearing 13, and a sleeve 12 is disposed between the fixed shaft and the inner ring of the two bearings.
  • the axial thrust on the hub is transmitted to the fixed shaft 11 and the frame 16 via the rotor shaft 5, the rear bearing 13, and the shaft nut 15.
  • Each of the power generating units includes a disk coil 10 and permanent magnets 6 on both sides of the disk coil 10.
  • a plurality of power generating units constitute a power generating portion of the entire unit.
  • the disc coil 10 may be in the form of a printed circuit board structure or a mosaic structure, and each of the disc coils includes a plurality of rectangular spiral coils.
  • the disc winding 10 is mounted in the groove of the housing 8 by the coil fixing assembly 9.
  • a plurality of spiral-shaped turns on the same disk are connected in series on the disk, and the winding ends of the series can be led to the outside of the casing 8 and connected in series or in parallel with the wires led out by the other disks.
  • the permanent magnets 6 are arranged radially on the rotor turntable 7, and the rotor turntable 7 is fixed by the turntable
  • the piece 14 is fixed to the rotor shaft 5.
  • the above-mentioned disc coil 10, the rotor turntable 7 and the casing 8 are each composed of two semicircular structures, and the semi-disc type weir 10 is assembled into two semicircular assemblies by the weir fixing assembly 9 and the semicircular casing 8, respectively, and finally The rotor turntables 7 are assembled together to make installation easier. Wherein, at least two ends of each of the semi-disc coils are led to the outside of the casing to be connected to other disc coils.
  • the coil fixing assembly 9 includes a coil clamp 21, a top bolt 22 and a coil lock ring 23.
  • the semi-disc type ⁇ 10 is installed in the groove of the casing 8, and then a semi-annular coil locking ring 23 can be installed, and each half ring has a plurality of circumferentially arranged top bolts 22 to be used for the disc line. ⁇ 10 is fixed in the axial direction.
  • An axial groove is machined inside the middle facet of the upper and lower casings.
  • the wire clamp 21 is mounted in the axial groove by means of a screw 25, and the disk wire 10 is press-fixed in the radial direction.
  • the number of coil clamps 21 is two in the upper and lower halves, and a total of four.
  • the upper and lower housings are assembled by studs, nuts and locating pins.
  • the turntable fixing assembly 14 includes a bolt 31, a lock nut 32 and a positioning pin 33.
  • Each of the semicircular rotor turntables 7 is fixed to the flange of the rotor shaft 5 by a plurality of bolts 31 and lock nuts 32, and is locked by the positioning pins 33.
  • Some of the short centerlines in the figure represent bolts and nut fasteners of various sizes.
  • various loads on the hub 1 are transmitted through the rotor shaft 5, the front bearing 3, the rear bearing 13, the shaft nut 15, and the fixed shaft 11 to a disc coil 10 on the frame 16 and its sides.
  • the permanent magnet 6 rotor constitutes an independent magnetic circuit through the coil surrounded by it, forming a power generating unit, stacking a plurality of identical power generating units in the engine casing, and winding the windings in series or in parallel according to design requirements, that is, The power generation part of the entire generator. Since the present invention makes full use of the space inside the casing 8, the size, weight and cost thereof are greatly reduced as compared with the conventional direct drive wind turbine.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make some simple modifications using the technical contents disclosed above. Equivalent changes or modifications are within the scope of the invention.

Landscapes

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

Abstract

一种盘式多定子永磁直驱风力发电机组，主要由轮毂（1）、转子轴（5）、固定轴（11）、机架（16）以及多个发电单元组成，其中固定轴（11）固定在机架（16）上；转子轴（5）与轮毂（1）连接，并可转动地安装在固定轴（11）上；每个发电单元包括一个盘式线圈（10），以及位于盘式线圈（10）两侧的永磁体（6）；各发电单元的盘式线圈（10）与壳体（8）固定联接，盘式线圈（10）上有多个呈矩形螺旋线状的线圈，这些线圈绕组之间串联连接，串联后的线圈绕组端头由导线引至壳体外部再与其它盘式线圈串联或并联；永磁体（9）通过转子转盘（7）与转子轴（5）连接。这种盘式多定子结构充分利用了转子内部空间，提高了发电机的功率密度，减少了风电机组的径向和轴向尺寸，大幅降低发电机组的重量和成本。

Description

一种大型盘式多定子永磁直驱风力发电机组
技术领域
本发明涉及一种盘式风力发电机组， 特别是涉及一种大型盘式多定子 永磁直驱风力发电机组。
背景技术
随着全球对风电能源日益增长的需求， 对风力发电机组的技术先进性 和生产成本带来越来越大的挑战。 目前功率在兆瓦级及以上的大型永磁直 驱风电机组的尺寸都很大， 因此其重量和成本都很高。 为此， 如何减小大 型永磁直驱风电机组的尺寸， 并降低其重量和成本， 是在本领域中的一个 很有意义的课题。
发明内容
本发明要解决的技术问题是提供一种大型盘式多定子永磁直驱风力发 电机组， 使其尺寸减小， 重量和成本降低， 从而克服现有的大型永磁直驱 风力发电机组尺寸大、 重量重、 成本高等不足。
为解决上述技术问题， 本发明一种大型盘式多定子永磁直驱风力发电 机组， 主要由轮毂、 转子轴、 固定轴、 机架、 壳体以及多个前后叠装的发 电单元组成， 其中： 固定轴固定在机架上； 转子轴与轮毂连接， 并通过轴 承可转动地安装在固定轴上； 每个发电单元包括一个盘式线圈， 以及位于 盘式线圏两側的永磁体； 各发电单元的盘式线圈与壳体固定连接， 每个盘 式线圈上具有多个呈矩形螺旋线状的线圈， 这些线圏绕组之间串联连接， 串联后的线圏绕组端头由导线引至壳体外部再与其它盘式线圏串联或并 联； 多个发电单元组成整个机组的发电部分。 永磁体通过转子转盘与转子 轴连接。
本发明中所述的盘式线圏、 转子转盘和壳体均由两个半圆结构组成。 所述的盘式线圏包括多个由印刷电路板制成的或镶嵌在线圈盘上的矩 形螺旋线圏。
所述的永磁体呈辐射状布置在转子转盘上。 所述的转子轴通过前、 后轴承安装在固定轴上。 所述的固定轴和前、 后轴承之间还设置有轴套。 所述的转子转盘通过螺栓、 锁紧螺母和定位销与转子轴装配在一起。 所述的轮毂通过螺栓紧固在转子轴前端。 所述的壳体内表面设有线圈安装槽， 每个线圏安装槽内均设有线圈锁 紧环、 顶紧螺栓和线圈压块， 这些零件将盘式线圏固定在壳体的安装槽内。 釆用这样的设计后， 本发明一种大型盘式多定子永磁直驱风力发电机 分利用了传统直驱风力发电机基本闲置的转子内部空间， 大大提高了发电 机的功率密度， 从而减小了大型永磁直驱风电机组的径向和轴向尺寸， 并 为大幅降低发电机组的重量和成本提供了一条有效途径。
附图说明 上述仅是本发明技术方案的概述， 为了能够更清楚了解本发明的技术 手段， 以下结合附图与具体实施方式对本发明作进一步的详细说明。 图 1是本发明大型盘式多定子永磁直驱风力发电机组的结构示意图。 图 2 是本发明大型盘式多定子永磁直驱风力发电机組的线圏固定组件 的结构示意图。
图 3是图 2的 B- B向示意图。 图 4 是本发明大型盘式多定子永磁直驱风力发电机组的转盘固定组件 的结构示意图。
图 5是图 4的 A向示意图。
具体实施方式 请参阅图 1所示， 本发明一种大型盘式多定子永磁直驱风力发电机组， 主要由轮毂 1、 转子轴 5、 固定轴 11、 机架 16、 壳体 8以及多个前后叠装 的发电单元组成。
其中， 固定轴 11通过轴螺母 15固定在机架 16上， 轮毂 1通过螺栓紧 固在转子轴 5的前端， 转子轴 5前端内侧装有前端盖 4对轴承起密封作用。 转子轴 5通过前轴承 3、后轴承 13可转动地安装在固定轴 11上， 固定 轴与两轴承内环之间装有轴套 12。 轮毂上的轴向推力经转子轴 5、 后轴承 13和轴螺母 15传至固定轴 11和机架 16上。 每个发电单元包括一个盘式线圈 10 ,以及位于盘式线圈 10两侧的永磁 体 6。 多个发电单元组成整个机组的发电部分。 盘式线圈 10的结构形式可以是印刷电路板结构形式， 也可是镶嵌式结 构形式， 每个盘式线圏包括多个矩形螺旋线圈。 盘式线圏 10通过线圈固定 组件 9安装在壳体 8的槽内。 同一个盘上的多个螺旋线状的线圏在盘上串 联连接， 串联后的绕组端头可由导线引至壳体 8 外部再与其它盘引出的导 线进行串联或并联。
永磁体 6呈辐射状布置在转子转盘 7上， 转子转盘 7通过转盘固定组 件 14固定在转子轴 5上。 上述盘式线圏 10、 转子转盘 7和壳体 8均由两个半圆结构组成， 半圓 盘式线圏 1 0经线圏固定组件 9与半圆壳体 8分别组装成两个半圆装配体， 最后与转子转盘 7合装在一起， 从而可使安装更为简便。 其中， 每个半圓 盘式线圈上至少有两个端头被引至壳体外部， 以与其它盘式线圈连接。
请配合参阅图 2、 图 3所示， 线圈固定组件 9包括线圈压块 21、 顶紧 螺栓 22和线圈锁紧环 23。 先将半圓盘式线圏 1 0安装在壳体 8的槽内， 然 后可安装呈半环状的线圈锁紧环 23， 每个半环有数个呈圆周布置的顶紧螺 栓 22将盘式线圏 10在轴向固定。 在上、 下壳体的中分面内侧加工有轴向 槽。 利用螺钉 25将线圏压块 21安装在轴向槽内， 将盘状线圏 10在径向压 紧固定。 线圈压块 21的数量是上、 下半各两个， 共 4个。 上壳体和下壳体 通过螺柱、 螺母和定位销合装在一起。
请配合参阅图 4、 图 5所示， 转盘固定组件 14包括螺栓 31、 锁紧螺母 32和定位销 33。 每个半圓转子转盘 7用数个螺栓 31和锁紧螺母 32固定在 转子轴 5的凸缘上， 并用定位销 33将其锁死。 图中的一些短小的中心线表示各种不同规格的螺栓、 螺母紧固件。 在 本发明中， 轮毂 1上的各种载荷经转子轴 5、 前轴承 3、 后轴承 1 3、 轴螺母 15和固定轴 1 1传至机架 16上 一个盘式线圈 1 0与其两侧的永磁体 6转子 构成独立的磁路穿过被其包围的线圈， 组成一个发电单元， 将多个相同的 发电单元叠装在发动机壳体内， 并根据设计要求将绕组串联或并联在一起， 即组成整个发电机的发电部分。 由于本发明充分利用了壳体 8 内部的空间， 所以与常规直驱风电机组 相比， 其尺寸、 重量和成本将有大幅降低。 以上所述， 仅是本发明的较佳实施例而已， 并非对本发明作任何形式 上的限制， 本领域技术人员利用上述揭示的技术内容做出些许简单修改、 等同变化或修饰， 均落在本发明的保护范围内。

Claims

权 利 要 求 书
1、 一种大型盘式多定子永磁直驱风力发电机组， 其特征在于主要由轮 毂、 转子轴、 固定轴、 机架、 壳体以及多个前后叠装的发电单元组成， 其 中：
固定轴固定在机架上；
转子轴与轮毂连接， 并可转动地安装在固定轴上； 每个发电单元包括一个盘式线圈， 以及位于盘式线圈两側的永磁体； 各发电单元的盘式线圈与壳体固定， 每个盘式线圈上具有多个呈矩形 螺旋线状的的线圏， 这些线圏绕组之间串联连接， 连接后的线圈绕组端头 由导线引至壳体外部再与其它盘式线圈串联或并联； 多个发电单元组成整 个机组的发电部分。
永磁体通过转子转盘与转子轴连接。
2、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的盘式线圈、 转子转盘和壳体均由两个半圆结构组成。
3、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的盘式线圏包括多个由印刷电路板制成的或镶嵌在线圈盘 上的矩形螺旋线圈。
4、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的永磁体呈辐射状布置在转子转盘上。
5、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的转子轴通过前、 后轴承安装在固定轴上。
6、根据权利要求 5所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的固定轴和前、 轴承之间还设置有轴套。
7、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的转子转盘通过螺栓、 锁紧螺母和定位销与转子轴装配在 一起。
8、根据权利要求 1所述的一种大型盘式多定子永磁直驱风力发电机组， 其特征在于所述的轮毂通过螺栓紧固在转子轴前端。
9、根据权利要求 1-8中任一项所述的一种大型盘式多定子永磁直驱风 力发电机组， 其特征在于所述的壳体内表面设有线圈安装槽， 每个线圈安 装槽内均设有线圈锁紧环、 顶紧螺栓和线圈压块， 并用这些零件将盘式线 圏固定在壳体的安装槽内。
PCT/CN2011/001210 2011-07-06 2011-07-25 一种大型盘式多定子永磁直驱风力发电机组 Ceased WO2013003985A1 (zh)

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