WO2013044421A1 - 一种风力发电系统 - Google Patents

一种风力发电系统 Download PDF

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Publication number
WO2013044421A1
WO2013044421A1 PCT/CN2011/001723 CN2011001723W WO2013044421A1 WO 2013044421 A1 WO2013044421 A1 WO 2013044421A1 CN 2011001723 W CN2011001723 W CN 2011001723W WO 2013044421 A1 WO2013044421 A1 WO 2013044421A1
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Prior art keywords
shaft
blade
gear
power generation
generation system
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Ceased
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PCT/CN2011/001723
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English (en)
French (fr)
Inventor
施建勇
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JIANG SU JUYUAN TECHNOLOGY Co Ltd
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JIANG SU JUYUAN TECHNOLOGY Co Ltd
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Publication of WO2013044421A1 publication Critical patent/WO2013044421A1/zh
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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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the 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
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the present invention relates to a wind power generation system, and more particularly to a wind power generation system capable of adjusting a wind turbine blade attitude according to a wind direction, thereby reducing windward resistance and improving wind energy utilization efficiency.
  • wind power as a renewable and clean energy source has been highly valued by governments, the energy industry and the environmental protection community around the world.
  • the wind resources on the earth have large reserves, clean and pollution-free, short construction period, flexible investment, small land occupation, and good economic and social benefits.
  • the current common method of wind power generation is to use an overhead three-blade wind wheel.
  • the axle drives the generator through the transmission, and the power generated by the single unit is generally less than 2MW.
  • the largest sea in the world The wind turbine is 5MW. This wind turbine requires a high starting wind speed.
  • the annual power generation time is between 2000 and 2500 hours.
  • the equipment is complex, the investment is large, the wind field is high, and the power generation is unstable. Poor performance, great impact on the peak shaving of the power grid.
  • a wind power generation system includes a holding tower, a blade rotating mechanism, a measuring device and a control box, wherein the measuring device is mounted on a top of a holding tower, and a driving shaft is mounted in the holding tower, the driving shaft
  • the bottom is mounted on the support base
  • the top of the holding tower is mounted with a bracket through the support base, and the bracket is respectively connected to the blade rotating mechanism through each of the cantilever arms, and the cantilever is fixed to the holding tower by the fixed sling
  • a hydraulic pump is mounted in the bracket, the hydraulic pump is connected to the hydraulic motor through a hydraulic passage, the hydraulic motor drives the rotation mechanism of the blade, the bottom of the bracket is fixedly connected with the rotor, and the rotor meshes with the gear
  • the gear is sleeved on the shaft, and the shaft drives the transmission shaft to rotate through a gear box.
  • the lower part of the transmission shaft is mounted with a power output gear, and the power output gear is connected to the target power consumption unit.
  • the blade rotation mechanism includes a motor case, a blade shaft and blades fixed at both ends of the blade shaft, the motor case is disposed in the hydraulic motor, the output shaft and the gear set, and the hydraulic motor is connected to the gear set through the output shaft, The gear set is sleeved on the blade shaft, and the two ends of the blade shaft are connected to the blade through a bearing fixed to the motor box.
  • the power output gear includes a main gear and a shift gear, the main gear is fitted to a lower portion of the transmission shaft, and the main gear meshes with the shift gear.
  • the blade is made of steel, fiberglass, canvas or wood, and the blade is 6-8 group.
  • the bracket has a hollow truncated cone-like structure.
  • the target power consumption unit is a generator, an air compressor or a hydraulic machine.
  • the measuring device is connected to a control box, which is an anemometer, a wind direction meter or an impeller tachometer, and the hydraulic motor, the hydraulic pump and the target power consumption unit are controlled by a control box.
  • a control box which is an anemometer, a wind direction meter or an impeller tachometer, and the hydraulic motor, the hydraulic pump and the target power consumption unit are controlled by a control box.
  • the blade orientation is automatically adjusted according to the direction of the wind and the size of the wind.
  • the windward side of the blade faces the incoming wind and is perpendicular to the incoming wind; when the direction of the blade moves toward the incoming wind, the blade is feathered parallel to the incoming wind.
  • the invention can reduce the windward resistance of the wind blade, improve the utilization efficiency of the wind energy, realize large-scale power generation, provide a large amount of clean electric energy for people's production and life, and alleviate the increasingly serious energy crisis on the earth;
  • the invention can reduce the starting wind speed of the system power generation, effectively realize the low wind speed power generation, broaden the application range, and prolong the annual effective power generation time.
  • variable sail wind power generation system of the present invention is completely environmentally friendly and does not cause any pollution to the environment;
  • Figure 1 is a schematic view of the overall structure of the present invention.
  • FIG. 2 is a schematic view of the blade turning mechanism of the present invention.
  • a wind power generation system of the present invention includes a holding tower 4, a blade turning mechanism, a measuring device 1 and a control box 2, and the measuring device 1 is mounted on the top of the holding tower 4, holding A drive shaft 3 is mounted in the tower 4, and the bottom of the drive shaft 3 is mounted on the support base 8.
  • the top of the support tower 4 is mounted with a bracket 9 of a hollow truncated cone structure through the support base 25, and the bracket 9 is surrounded by the respective cantilever 10 is respectively connected to the blade rotating mechanism, and the cantilever 10 is fixed to the top of the holding tower 4 by a fixed sling 11 in which a hydraulic pump 12 is mounted, and the hydraulic pump 12 is connected to the hydraulic motor 14 through the hydraulic passage 13, the hydraulic motor 14
  • the rotation mechanism of the blade is rotated, the bottom of the bracket 9 is fixedly connected with the rotor 15, the rotor 15 is meshed with the gear 16, the gear 16 is sleeved on the shaft 17, and the shaft 17 drives the transmission shaft 3 through the gear box 18, and the lower part of the transmission shaft 3 is mounted.
  • the power output gear includes a main gear 5 and a shift gear 6, the main gear 5 is set in the lower part of the drive shaft 3, the main gear 5 meshes with the shift gear 6, and the power output gear is connected to the target power consumption unit 7, the target consumption
  • the unit 7 is a generator, an air compressor or a hydraulic machine
  • the blade turning mechanism includes a motor case 19, a leaf shaft 20 and blades 21 fixed at both ends of the blade shaft 20.
  • the motor case 19 is provided in the hydraulic motor 14, the output shaft 22 and the gear set 23, the hydraulic motor 14 passes through the output shaft 22 and the gear set 23
  • the gear set 23 is sleeved on the blade shaft 20, and the two ends of the leaf shaft 20 are connected to the blade 21 through a bearing 24 fixed to the motor case 19.
  • the blade 21 is made of steel, fiberglass, canvas or wood, and the blade 21 is 6-8 groups.
  • the measuring device 1 is connected to the control box 2, which is an anemometer, a wind direction meter or a vane tachometer, and the hydraulic motor 14, the hydraulic pump 12 and the target power consumption unit 7 are controlled by the control box 2.
  • the control box 2 which is an anemometer, a wind direction meter or a vane tachometer, and the hydraulic motor 14, the hydraulic pump 12 and the target power consumption unit 7 are controlled by the control box 2.
  • the hydraulic pump 12 supplies power to the hydraulic motor 14, so that the hydraulic motor 14 drives the output shaft 22 to rotate and the gear set 23 meshes, and the blade 21 on the blade shaft 20 rotates accordingly, while the target power consumption unit 7 drives the shift gear 6 to rotate.
  • the shifting gear 6 meshes with the main gear 5, the main gear 5 rotates to drive the transmission shaft 3 to rotate, the transmission shaft 3 drives the shaft 17 to rotate through the gear box 18, the gear 16 rotates with the shaft 17, and the rotor 15 is a circular internal gear and is coupled with the gear 16 meshing, the rotation of the rotor 15 causes the conical bracket 9 to rotate therewith, and the conical bracket 9 rotates to rotate the boom 10, so that both the boom 10 and the vane 21 can be rotated.
  • the blade 21 is automatically adjusted according to the direction of the wind and the size of the wind.
  • the windward side of the blade 21 faces the incoming wind and is perpendicular to the incoming wind; when the moving direction of the blade 21 is toward the incoming wind, the blade is feathered and The wind is parallel.
  • This structure is advantageous for the natural gas flow to be maximally applied to the blade 21, reducing the windward resistance and improving the efficiency of wind energy utilization.
  • the attitude of the blade 21 can be adjusted according to the wind direction, thereby reducing the windward resistance, improving the wind energy utilization efficiency, having the advantages of power generation balance, simple equipment, low construction cost, safety and reliability, and the like, and is suitable for grid-connected power generation and off-grid power supply.

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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)
  • Wind Motors (AREA)

Abstract

一种风力发电系统，包括抱持塔架（4），叶片转动机构、测量装置（1）和控制箱（2）。测量装置（1）安装于抱持塔架（4）顶部，抱持塔架（4）内安装有传动轴（3），传动轴（3）底部安装于支承支座（8）上，抱持塔架（4）顶部安装有托架（9），托架（9）四周通过各个悬臂（10）分别与叶片转动机构（19，20，21）连接，悬臂（10）通过固定吊索（11）固定于抱持塔架（4）顶部，托架（9）内安装有液压泵（12），液压泵（12）通过液压通道（13）与液压马达（14）连接，液压马达（14）带动叶片转动机构（19，20，21）转动，托架（9）底部与转子（15）固定连接，转子（15）与齿轮（16）啮合，齿轮（16）套接于轴（17）上，轴（17）通过齿轮箱（18）带动传动轴（3）转动，传动轴（3）的下部安装有动力输出齿轮（5, 6），动力输出齿轮（5，6）连接目标功耗机组（7）。该系统有利于使自然界气流能最大限度作用于叶片，降低迎风阻力，提高风能利用效率。

Description

一种风力发电系统
技术领域
本发明涉及一种风力发电系统，尤其涉及一种可根据风向调节风 帆叶片姿态，从而降低迎风阻力，提高风能利用效率的风力发电系统。 背景技术
能源是人类生存发展的重要基础资料。近百年来， 随着人类生活 需求的不断提高和生产规模的扩大，对能源的需求也越来越殷切。进 入二十一世纪， 能源危机正在日益制约社会经济活动， 传统使用的化 石能源日益匮乏，价格不断攀升， 成为引起世界经济动荡和影响和平 的重要因素。 而且， 化石能源的大量使用， co2、 so2等温室气体大量 排放， 导致气候变暖， 生态变迁， 危及人类生存环境。
为了解决日益严重的能源危机，缓解由于大量使用化石能源带来 的环境污染，长期以来，世界各国纷纷投入巨资寻找开发可再生能源。 目前列入重点研究开发的清洁能源有水能、 风能、 太阳能、 潮汐能、 生物质能等。
风能的开发利用已有很长的历史。近年来， 风力发电作为可再生 的清洁能源受到世界各国政府、能源界和环保界的高度重视。地球上 风力资源蕴藏量大， 清洁无污染， 施工周期短， 投资灵活， 占地少， 具有较好的经济效益和社会效益。
目前风力发电的普遍方式是采用架空式三叶风轮。轮轴通过变速 装置驱动发电机， 单机发电功率普遍为 2MW以下。 国际上最大的海 上风力发电机为 5MW， 这种风力发电机需要较高的启动风速， 常年 发电时间在 2000〜2500小时之间， 设备复杂， 投资大， 对风场要求 高， 而且发电量不稳定， 发电预见性差， 对电网调峰冲击大。
发明内容
本发明为解决上述技术问题采用的技术方案是：
一种风力发电系统， 包括抱持塔架、 叶片转动机构、 测量装置和 控制箱， 所述测量装置安装于抱持塔架顶部， 所述抱持塔架内安装有 传动轴， 所述传动轴底部安装于支承底座上， 所述抱持塔架顶部通过 支承座安装有托架，所述托架四周通过各个悬臂分别与叶片转动机构 连接， 所述悬臂通过固定吊索固定于抱持塔架顶部， 所述托架内安装 有液压泵， 所述液压泵通过液压通道与液压马达连接， 所述液压马达 带动叶片转动机构转动，所述托架底部与转子固定连接， 所述转子与 齿轮啮合，所述齿轮套接于轴上，所述轴通过齿轮箱带动传动轴转动， 所述传动轴的下部安装有动力输出齿轮，所述动力输出齿轮连接目标 耗功机组。
所述叶片转动机构包括马达箱、 叶轴和固定于叶轴两端的叶片， 所述马达箱内设于液压马达、输出轴和齿轮组， 所述液压马达通过输 出轴与齿轮组连接， 所述齿轮组套接于叶轴上，所述叶轴两端穿过固 定于马达箱上的轴承与叶片连接。
所述动力输出齿轮包括主齿轮和变速齿轮，所述主齿轮套装于传 动轴下部， 所述主齿轮与变速齿轮啮合。
所述叶片采用钢材、 玻璃钢、 帆布或木板制成， 所述叶片为 6-8 组。
所述托架形状为空心圆锥台状结构。
所述目标耗功机组为发电机、 空气压縮机或液压机。
所述测量装置与控制箱连接，所述测量装置为风速仪、风向仪或 叶轮转速仪， 所述液压马达、 液压泵和目标耗功机组由控制箱控制。
根据来风方向和风力大小自动调节叶片朝向，当叶片运动方向背 向来风时， 叶片迎风面朝向来风并与来风垂直； 当叶片运动方向迎向 来风时， 叶片顺桨与来风平行。这种结构有利于使自然界气流能最大 限度作用于叶片， 降低迎风阻力， 提高风能利用效率。
本发明的优点是-
1、 提高风能利用效率， 提供清洁能源。 本发明可以降低风叶迎 风阻力， 提高风能利用效率， 实现较大规模发电， 为人们生产生活提 供大量清洁电能， 缓解目前地球上日益严重的能源危机；
2、 实现低风速发电。 本发明可降低系统发电的起点风速， 有效 实现低风速发电， 拓宽了应用范围， 延长了年度有效发电时间。
3、 清洁环保。 本发明的可变风帆式风力发电系统是完全的环境 友好能源， 不会给环境带来任何的污染；
4、 投资省。 依据本发明建造的风能发电机组投资省， 每千瓦装 机投资额远低于现行的火电、 核电、 水电、 太阳能发电和风电等。 附图说明
图 1为本发明的整体结构示意图。
图 2为本发明的叶片转动机构示意图。 其中： 1、 测量装置， 2、 控制箱， 3、 传动轴， 4、 抱持塔架， 5、 主齿轮， 6、 变速齿轮， 7、 目标耗功机组， 8、 支承底座， 9、 托架， 10、 悬臂， 11、 固定吊索， 12、 液压泵， 13、 液压通道， 14、 液压马 达， 15、 转子， 16、 齿轮， 17、 轴， 18、 齿轮箱， 19、 马达箱， 20、 叶轴， 21、 叶片， 22、 输出轴， 23、 齿轮组， 24、 轴承， 25、 支承座。 具体实施方式
以下实施例用于说明本发明， 不用来限制本发明的保护范围。 如图 1和 2所示，本发明的一种风力发电系统，包括抱持塔架 4、 叶片转动机构、 测量装置 1和控制箱 2， 测量装置 1安装于抱持塔架 4顶部， 抱持塔架 4内安装有传动轴 3， 传动轴 3底部安装于支承底 座 8上， 抱持塔架 4顶部通过支承座 25安装有空心圆锥台状结构的 托架 9， 托架 9四周通过各个悬臂 10分别与叶片转动机构连接， 悬 臂 10通过固定吊索 11固定于抱持塔架 4顶部，托架 9内安装有液压 泵 12， 液压泵 12通过液压通道 13与液压马达 14连接， 液压马达 14 带动叶片转动机构转动， 托架 9底部与转子 15固定连接， 转子 15与 齿轮 16啮合， 齿轮 16套接于轴 17上， 轴 17通过齿轮箱 18带动传 动轴 3转动， 传动轴 3的下部安装有动力输出齿轮， 动力输出齿轮包 括主齿轮 5和变速齿轮 6， 主齿轮 5套装于传动轴 3下部， 主齿轮 5 与变速齿轮 6啮合， 动力输出齿轮连接目标耗功机组 7， 目标耗功机 组 7为发电机、 空气压缩机或液压机， 叶片转动机构包括马达箱 19、 叶轴 20和固定于叶轴 20两端的叶片 21， 马达箱 19内设于液压马达 14、输出轴 22和齿轮组 23， 液压马达 14通过输出轴 22与齿轮组 23 连接， 齿轮组 23套接于叶轴 20上， 叶轴 20两端穿过固定于马达箱 19上的轴承 24与叶片 21连接， 叶片 21采用钢材、 玻璃钢、 帆布或 木板制成， 叶片 21为 6-8组。
测量装置 1与控制箱 2连接，测量装置 1为风速仪、风向仪或叶 轮转速仪， 液压马达 14、 液压泵 12和目标耗功机组 7由控制箱 2控 制。
工作原理： 液压泵 12给液压马达 14提供动力， 使液压马达 14 驱动输出轴 22转动和齿轮组 23啮合，叶轴 20上的叶片 21随之转动， 同时目标耗功机组 7驱动变速齿轮 6转动，变速齿轮 6与主齿轮 5啮 合， 主齿轮 5转动带动传动轴 3转动， 传动轴 3通过齿轮箱 18带动 轴 17转动， 齿轮 16随着轴 17转动， 转子 15为圆形内齿轮并且与齿 轮 16啮合， 转子 15的转动使得圆锥形托架 9随之转动， 圆锥形托架 9转动带动其悬臂 10转动， 因此悬臂 10和叶片 21均可以各自转动。
根据来风方向和风力大小自动调节叶片 21朝向，当叶片 21运动 方向背向来风时， 叶片 21迎风面朝向来风并与来风垂直； 当叶片 21 运动方向迎向来风时， 叶片顺桨与来风平行。这种结构有利于使自然 界气流能最大限度作用于叶片 21， 降低迎风阻力， 提高风能利用效 率。
可根据风向调节叶片 21的姿态， 从而降低迎风阻力， 提高风能 利用效率，具有发电均衡， 设备简单，建造成本低，安全可靠等优点， 适用于并网型发电和离网型供电。

Claims

权利要求书
1、 一种风力发电系统， 包括抱持塔架、 叶片转动机构、 测量装置和 控制箱， 所述测量装置安装于抱持塔架顶部， 所述抱持塔架内安装有 传动轴， 所述传动轴底部安装于支承底座上， 其特征在于： 所述抱持 塔架顶部通过支承座安装有托架，所述托架四周通过各个悬臂分别与 叶片转动机构连接， 所述悬臂通过固定吊索固定于抱持塔架顶部，所 述托架内安装有液压泵， 所述液压泵通过液压通道与液压马达连接， 所述液压马达带动叶片转动机构转动， 所述托架底部与转子固定连 接， 所述转子与齿轮啮合， 所述齿轮套接于轴上， 所述轴通过齿轮箱 带动传动轴转动， 所述传动轴的下部安装有动力输出齿轮， 所述动力 输出齿轮连接目标耗功机组。
2、 根据权利要求 1所述的一种风力发电系统， 其特征在于： 所述叶 片转动机构包括马达箱、叶轴和固定于叶轴两端的叶片， 所述马达箱 内设于液压马达、输出轴和齿轮组， 所述液压马达通过输出轴与齿轮 组连接，所述齿轮组套接于叶轴上，所述叶轴两端穿过固定于马达箱 上的轴承与叶片连接。
3、 根据权利要求 1所述的一种风力发电系统， 其特征在于： 所述动 力输出齿轮包括主齿轮和变速齿轮， 所述主齿轮套装于传动轴下部， 所述主齿轮与变速齿轮啮合。
4、 根据权利要求 2所述的一种风力发电系统， 其特征在于： 所述叶 片采用钢材、 玻璃钢、 帆布或木板制成， 所述叶片为 6-8组。
5、 根据权利要求 1所述的一种风力发电系统， 其特征在于： 所述托 架形状为空心圆锥台状结构。
6、 根据权利要求 1所述的一种风力发电系统， 其特征在于： 所述目 标耗功机组为发电机、 空气压缩机或液压机。
7、 根据权利要求 1所述的一种风力发电系统， 其特征在于： 所述测量 装置与控制箱连接， 所述测量装置为风速仪、 风向仪或叶轮转速仪， 所述液压马达、 液压泵和目标耗功机组由控制箱控制。
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