Wind Turbine Blade 风力发电叶片
风力发电机叶片研究的英语PPT演讲
02
Types of Wind Turbine Blades
Composite Blades
Made from a combination of materials such as glass fiber, carbon fiber, and epoxy resin
Have a longer lifespan compared to metal blades
Have a high strength to weight ratio, which allows them to stand high windows and produce more energy
Are more expenses to produce but have lower maintenance costs
Wind energy has been used for centers to pump water and grind grain, but modern wind turbines were developed in the 20th century Since then, wind turbine technology has advanced significantly, leading to increased power output, improved efficiency, and reduced cost
01
Introduction
Background of Wind Energy
Wind energy is a renewable energy source that harmesses the power of the wind to generate electricity It has the potential to provide a significant share of the world's energy needs while reducing greenhouse gas emissions and other environmental impacts
太阳能风能LED报关商检及H.S编码
品名 太阳能板 风力发电机 风力发电机叶片 是否需商检 否 是 否 500元/批
金额较小时，建议走私帐以“风力发电机部件”名义 出，避免商检；金额居中时，可走公帐，仍以“风力 发电机叶片”名义出口退税；金额稍大时可以“风力 发电机”名义出，办理正规商检及报关手续 建议大批量可买商检正规报关出去，小批量买单报 关或向海关申报时直接隐藏。小批量LED灯，建议客 户付款至个人账户。
9405990000 8537109090 9032890004 待定
密封铅酸蓄电池 Sealed Lead-Acid Battery 蓄电池箱 Battery Box 钢支架 Steel Rack 塔架 Tower 灯杆组件 Pole Assembly 电缆 Cable
8507200000 3923100000
H.S编码
8541402000 8502310000 8503003000
LED灯 (涵盖所有LED灯具种类)
是
1300元/批
9405409000
LED灯配件（灯壳） 太阳能控制器 风光互补控制器 逆变器 蓄电池 蓄电池箱
否 否 否 否 是 否
逆变器不需商检，但要求提供技术出口许可证，要 求供应商以“控制器”品名开发票且以“控制器”名义申 报 不但要商检，而且需提供多种文件，且很少有公司 做这种商检。目前都是买单报能板 Solar Panel 风力发电机 Wind Generator 风力发电机叶片 Wind Turbine Blade LED灯 LED Lamp 灯配件 Lamp Fitting 太阳能控制器 Solar Controller 风力发电机控制器 Controller
太阳能板支架、风机塔架、灯杆
Wind Turbine Blade 风力发电叶片
Large blades (above 42 meters) use carbon fiber or carbon fiber / glass fiber mixture to reinforce. The resin matrix is mainly epoxy resin.
2 Wind Turbine Blade
3. Manufacturing process:
Hand lay-up: Hand lay-up is an open mold process and will produce volatile toxic gases (such as styrene), bringing harm to operators and the environment. In addition, because of poor productivity and poor product quality, hand lay-up is generally only used to produce small quantities of short blades. Vacuum watering molding: For the blades with more than 40 meters generally use vacuum watering molding. This process has high efficiency, low cost and good quality.It has been widely used. Integral molding The advantages of integral molding include: the manufacturing process requires only a set of moulds, so this method saves labor and space; the blade structure is complete because there is no glue-bonding part.
离心力对风力发电机组叶片结构性能的影响分析
离心力对风力发电机组叶片结构性能的影响分析羊森林;赵萍;钟贤和;李杰【摘要】The effects of stiffening caused by the rotating centrifugal force on the blade structural properties were studied, basing on one type of MW wind turbine blade. The results show that the natural frequency of blade increase significantly, the displacements and strains decrease obviously due to the effects of rotating centrifugal force. Meanwhile, the blade structure stability was enhanced to some extent. The analysis results have good reference to the design of wind turbine blades in future.%基于某兆瓦级大型风力发电机组，研究了离心力引起的刚化效应对风电机组叶片结构性能的影响。
结果表明，离心力将使叶片的低阶固有频率显著增加，叶片的位移变形和应变显著减小，同时在一定程度上提升了叶片的结构稳定性。
分析结果对后续风电叶片的设计具有参考和借鉴意义。
【期刊名称】《大电机技术》【年(卷),期】2016(000)003【总页数】4页(P54-57)【关键词】风电叶片;离心刚化;频率;应变;结构性能【作者】羊森林;赵萍;钟贤和;李杰【作者单位】东方电气集团东方汽轮机有限公司，四川德阳 618000;东方电气集团东方汽轮机有限公司，四川德阳 618000;东方电气集团东方汽轮机有限公司，四川德阳 618000;东方电气集团东方汽轮机有限公司，四川德阳 618000【正文语种】中文【中图分类】TM315叶片作为风力发电机组的关键部件之一，随机组功率等级和风轮直径的不断增加，叶片的结构安全性能受到了广泛关注，并有许多学者在该领域进行了研究[1-4]。
小型风力发电机叶片的红外无损检测研究
引用格式：王晨, 顾永强. 小型风力发电机叶片的红外无损检测研究[J]. 中国测试，2023, 49(7): 35-40. WANG Chen, GU Yongqiang. Research on infrared nondestructive detection of small wind turbine blades[J]. China Measurement & Test, 2023, 49(7):35-40. DOI: 10.11857/j.issn.1674-5124.2022010030小型风力发电机叶片的红外无损检测研究王 晨， 顾永强(内蒙古科技大学土木工程学院，内蒙古 包头 014010)摘 要: 为获得风力发电机叶片现场红外无损检测的最佳光照条件，该文以赋有不同损伤类型及不同损伤程度的2 kW 小型风力发电机叶片为研究对象，利用被动式红外热成像检测方式，在夏季光照充足的室外条件下对损伤叶片进行自然激励，采集红外热像图。
研究结果表明光照强度对损伤检测有着极大的影响，并且得到风机叶片三种典型损伤的最佳检测光照条件，其中异物附着和面部损伤在午间光照强度达到1 000 W/m 2及以上检测效果最佳，而裂纹损伤在晴朗的午后光照强度为900 W/m 2左右检测效果佳，从而证明利用太阳辐射作为发射源的被动式红外热成像检测技术来检测风机叶片损伤的方法在一定光照强度范围之内是可行的。
关键词: 风力机叶片; 无损检测; 红外热成像; 损伤中图分类号: TK83; TB9文献标志码: A文章编号: 1674–5124(2023)07–0035–06Research on infrared nondestructive detection of small wind turbine bladesWANG Chen, GU Yongqiang(School of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China)Abstract : In order to obtain the best lighting conditions for on-site infrared nondestructive testing of wind turbine blades, this paper takes 2 kW small wind turbine blades with different damage types and different damage degrees as the research object, and uses passive infrared thermal imaging detection method to perform natural excitation on damaged blades under outdoor conditions with sufficient light in summer, and collect infrared thermal images. The research results show that the light intensity has a great impact on the damage detection, and the best light conditions for the detection of three typical damage of fan blades are obtained.Among them, foreign body attachment and facial damage have the best detection effect when the light intensity reaches 1 000 W/m 2 or above at noon. The crack damage detection effect is good when the light intensity is about 900 W/m 2 in a clear afternoon, which proves that the passive infrared thermal imaging detection technology using solar radiation as the emission source to detect fan blade damage is feasible within a certain light intensity range.Keywords : wind turbine blade; nondestructive detection; infrared thermal imaging; damage收稿日期: 2022-01-06；收到修改稿日期: 2022-03-24基金项目: 内蒙古自治区自然科学联合基金(2018LH05008)作者简介: 王 晨（1997-），男，山西晋城市人，硕士研究生，专业方向为风机叶片的损伤检测。
水平轴风力机叶片的截面与动力特性分析
水平轴风力机叶片的截面与动力特性分析区家隽;李学敏;徐林【摘要】风力机叶片在旋转过程中受重力和离心力作用,产生动力刚化导致固有频率增加.文章以NRELPha-seⅥ风力机叶片为对象,在其内部分别添加圆形腹板、单腹板和双腹板,建立3种不同截面的叶片三维模型,并结合复合材料对叶片铺层进行动力学分析.结果表明,叶片采用的铺层方案能有效避免共振,并且3种叶片模型的重量均接近叶片的真实值.在额定转速下,3种腹板叶片的一阶频率增量随腹板的厚度增加而增加,但在两倍额定转速时,单腹板和圆形腹板的一阶频率增量随腹板厚度增加而减少;同时,腹板中的双轴向玻璃布材料以±45°铺设时,一阶固有频率最大,而由动力刚化引起的一阶频率增量较其他角度小.【期刊名称】《可再生能源》【年(卷),期】2016(034)005【总页数】6页(P681-686)【关键词】复合材料叶片;铺层角度;腹板厚度;离心刚化;坎贝尔图;模态分析【作者】区家隽;李学敏;徐林【作者单位】华中科技大学中欧清洁与可再生能源学院,湖北武汉430074;华中科技大学中欧清洁与可再生能源学院,湖北武汉430074;华中科技大学中欧清洁与可再生能源学院,湖北武汉430074【正文语种】中文【中图分类】TK83随着复合材料在风电领域的应用及生产制造等相关技术的发展，风力发电技术得到不断提高。
叶片是风力机最重要的结构组件之一，叶片在旋转时受到离心力和重力的作用导致动力刚化，表征为固有频率增加。
孙保苍利用500 W小型风力机叶片为研究对象，分析计算叶片各阶模态频率，结果表明当叶片高速旋转时，动力刚化现象对叶片固有频率有较大的影响[1]。
胡国玉基于NREL 5 MW风力发电机叶轮叶片，结合柔性多体动力学理论及有限元分析方法，发现动力刚化效应对挥舞振动频率的影响比对摆振振动频率的影响更明显[2]。
水平轴风力机叶片目前主要由复合材料制造而成。
由于复合材料具有质量轻，高强度比等特征，使得风力机叶片能够承受更大的气动载荷[3]。
风力发电叶片铺层流程
风力发电叶片铺层流程Wind turbine blades are crucial components of wind power generation, as they are responsible for capturing the kinetic energy of the wind and converting it into mechanical energy. 风力发电叶片是风电发电的关键组成部分，它们负责捕捉风的动能并将其转化为机械能。
The process of laying the layers of wind turbine blades is a critical step in ensuring the structural integrity and operational efficiency of the blades. 风力发电叶片铺层的流程是确保叶片结构完整性和运行效率的关键步骤。
It involves the careful placement of multiple layers of materials, such as fiberglass and resin, to create a strong and aerodynamic blade. 它涉及多层材料（如玻璃纤维和树脂）的谨慎放置，以创造坚固和流线型的叶片。
The first step in the process of laying wind turbine blade layers is the preparation of the molds that will shape the blades. 风力发电叶片铺层流程的第一步是准备将成型叶片的模具。
These molds are typically made of metal or composite materials and are designed to the exact specifications of the wind turbine blade. 这些模具通常由金属或复合材料制成，并按照风力发电叶片的精确规格设计。
纤维增强材料在风机叶片上的应用
纤维增强材料在风机叶片上的应用努兰·苏力坦汗;孙文磊【摘要】The profile of wind power generation at home and abroad was introduced. The glass fiber and carbon fiber used in the wind turbine blades as reinforced materials were mainly described. The mechanical properties and making processes of the two materials were addressed as well as. With the development of large-sized blades, carbon fiber with its high strength, high modulus and lower density will be widely used in the manufacture of the wind turbine blades. International carbon fiber industry situation and development trend of carbon fiber in our country were analyzed.%概述了国内外风力发电现状，对目前用于风力发电机叶片的主要增强材料玻璃纤维和碳纤维作了介绍，并对它们的力学性能和制备工艺进行了分析。
阐述了随着风机叶片的大型化，碳纤维因其具有高强度、高模量和低密度等特点，将逐步被广泛应用于叶片制造业。
探讨了国际碳纤维产业的发展情况和我国碳纤维生产现状及发展趋势。
【期刊名称】《广州化工》【年(卷),期】2015(000)011【总页数】3页(P16-18)【关键词】风力发电;玻璃纤维;碳纤维【作者】努兰·苏力坦汗;孙文磊【作者单位】新疆大学化学与化工学院，新疆乌鲁木齐 830046;新疆大学机械工程学院，新疆乌鲁木齐 830047【正文语种】中文【中图分类】TM315随着全球应对气候变化呼声的日益高涨以及能源短缺，能源供应安全形势的日趋严峻，新能源产业已呈现出太阳能、生物质能和风能发电三足鼎立的基本格局。
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2 Wind Turbine Blade
2. Blade composite material:
Small wind turbine blades (below 22 meters) use glass fiber to reinforce. The resin matrix is mainly unsaturated polyester resin, we can also choose vinyl resin and epoxy resin.
3. Manufacturing process:
Hand lay-up: Hand lay-up is an open mold process and will produce volatile toxic gases (such as styrene), bringing harm to operators and the environment. In addition, because of poor productivity and poor product quality, hand lay-up is generally only used to produce small quantities of short blades. Vacuum watering molding: For the blades with more than 40 meters generally use vacuum watering molding. This process has high efficiency, low cost and good quality.It has been widely used. Integral molding The advantages of integral molding include: the manufacturing process requires only a set of moulds, so this method saves labor and space; the blade structure is complete because there is no glue-bonding part.
2 Wind Turbine Blade
2. Blade composite material:
Carbon fiber composites: Carbon fiber composite blades have twice the stiffness of fiberglass composite blades. Carbon fiber can not only reduce the blade quality, but also has more excellent performance. But carbon fiber is too expensive, so its wide application is limited. The compromise solution: Use a mixture of glass fiber and carbon fiber
1 Wind Power
Advantage:
lower cost Non-three-dimensional facilities→protect land and ecology Renewable energy, environmentally friendly, clean Disadvantage:
of the solar energy, since they are the
temperature differences and the pressureinduced in the atmosphere by absorbing solar radiation, which set in motion the winds. The rotor mission in a wind turbine is transforming this kinetic energy of wind to mechanic energy.
Wind Turbine Blade
LOGO
CONTENT
1
Wind Power
Wind Turbine Blade
2
1 Wind Power
Wind is a clean, abundant, and renewable energy resource that can be exploited to produce electricity. The wind energy is an indirect form
Unstabh birds Location restrictions Loud noise Low conversion efficiency
2 Wind Turbine Blade
Wind turbine is a power plant made up of blades, generator, transmission system, energy storage equipment, tower and electrical system and so on.
Steel beam fiberglass skin blade
Glass fiber reinforced plastic(GFRP) composite blade
2 Wind Turbine Blade
2. Blade composite material:
E fiberglass composites: E-glass fibers are a family of calcium aluminosilicate glasses with low alkali metal oxide content and high resistivity. This composite material has great strength, good process matching, low price, but it has high density and is not suitable for large-scale blades. S fiberglass composites: S-glass is a magnesium alumino-silicate glass with a fiber strength twenty-five percent higher than E-glass fibers, but more expensive than E-glass fibers. S-glass fiber composites still can not meet the larger blade production.
2 Wind Turbine Blade
4. Green blade:
Thermoplastic composite blades
recyclable curing cycle is short higher strength and stiffness
LOGO
2 Wind Turbine Blade
1. Blade material development and evolution
Aluminum alloy chord extrusion blade Carbon fiber composite blade
Wooden blade cloth skin blade
Large blades (above 42 meters) use carbon fiber or carbon fiber / glass fiber mixture to reinforce. The resin matrix is mainly epoxy resin.
2 Wind Turbine Blade