专利名称：一种具有较高风能利用效率的垂直轴风力发电机的制作方法
技术领域：
本发明涉及一种发电装置，特别是一种高效率垂直轴风力发电机，属风力发电 技术领域。
背景技术：
风力发电机根据主轴安装方位分为水平轴和垂直轴，迄今为止应用较为普遍的 是水平轴风力发电机。水平轴发电机尽管应用普遍，但结构上存在一些问题，如需要 偏航、对桨等迎风和控制迎风面增大阻力差的结构，这使发电机的结构复杂、占用零部 件多且容易造成故障。基于水平轴发电机的结构缺陷，近年来，垂直轴发电机技术发展 迅速，应用日益广泛。垂直轴发电机可通过对叶片结构的优化设计，增大风阻力，提高 风阻力差，使风机即使在较低的风速下仍可以正常启动运行，无需偏航、变浆装置，因 而结构相对简单。垂直轴发电机关键技术是叶片结构的设计，叶片形状优劣直接影响其 启动性能和风能利用效率。目前，垂直轴发电机存有升力型叶片自起动性能差、低风速 发电性能差，阻力型风能利用效率低等问题，因此优化叶片结构是解决上述问题的关键 所在。
发明内容
本发明用于克服已有技术的缺陷而提供一种能量转换利用率高、低风速发电性 能优良的具有较高风能利用效率的垂直轴风力发电机。本发明所称问题是由以下技术方案解决的
一种具有较高风能利用效率的垂直轴风力发电机，构成中包括中心柱、叶片和横撑 杆，各叶片垂直设置，它们相对中心柱轴线均勻分布，叶片由横撑杆连接中心柱，其特 别之处是所述各叶片的截面形状相同，所述叶片截形的一侧为钩状端、且钩状端朝外 设置。所述叶片截形轮廓由O-Q、O-R、P-Q> P-R四条曲线组成，四条曲线由下述参 数确定
建立平面直角坐标系，以所述截形的一端为坐标原点，各曲线上相应点的坐标值如
下
O-Q曲线
Xo O Yao O
Xl1Yal0.6312X22Ya20. 8929X33Ya31.1320X44Ya41.3510X55Ya51.5522X66Ya61.7376X77Ya71.9089X88Ya82.0674X99Ya92.2146XlO10YalO2,.3518Xll11Yall2,.4797X1212Yal 22,.5988X1313Yal 32,.7097X1414Yal42,.8130X1515Yal 52,.9092X1616Yal62,.9986X1717Yal 73,.0814X1818Yal83,.1579X1919Yal93,.2284X2020Ya203,.2930X2121Ya213,.3520X2222Ya223,.4056X2323Ya233,.4539X2424Ya243,.4971X2525Ya253,.5354X2626Ya263,.5690X2727Ya273,.5979X2828Ya283,.6224X2929Ya293,.6425X3030Ya303,.6584X3131Ya313,.6702X3232Ya323,.6780X3333Ya333,.6820X3434Ya343.6823X3535Ya353,.6789X3636Ya363,.6720X3737Ya373,.6616X3838Ya383,.6479X3939Ya393,.6309X4040Ya403,.6106X4141Ya413,.5873X4242Ya423,.5609X4343Ya433,.5316X4444Ya443,.4994X4545Ya453,.4645X4646Ya463,.4268X4747Ya473,.3865X4848Ya483,.3437X4949Ya493,.2984X5050Ya503,.2507X5151Ya513,.2007X5252Ya523,.1484X5353Ya533,.0940X5454Ya543,.0375X5555Ya552,.9789X5656Ya562,.9160X5757Ya572,.8496X5858Ya582,.7902X5959Ya592,.7403X6060Ya602,.7024X6161Ya612,.6789X6262Ya622,.6727X6363Ya632,.6868X6464Ya642,.7242X6565Ya652,.7887X6666Ya662,.8841X6767Ya673,.0150X6868Ya683,.1867X6969Ya693,.4054X7070Ya703,.6785X7171Ya714,.0150X7272Ya724.4263X7373Ya734,.9268X7474Ya745.5741X7575Ya756.6965Xq75.7Yq 9.2210 ；
O-R曲线Xo0Ybo0Xl1Ybl-0.337X22Yb2-0.0 96X33Yb30.1236X44Yb40. 3231X55Yb50.5052X66Yb60.6717X77Yb7 0.8243X88Yb8 0.9643X99Yb9 1.0932XlO10YblO1..2121Xll11Ybll1..3219X1212Ybl21..4229X1313Ybl31..5159X1414Ybl41..6013X1515Ybl51..6796X1616Ybl61..7512X1717Ybl71..8162X1818Ybl81..8749X1919Ybl91..9276X2020Yb201..9745X2121Yb212,.0159X2222Yb222,.0518X2323Yb232,.0824X2424Yb242,.1080X2525Yb252,.1287X2626Yb262,.1446X2727Yb272,.1560X2828Yb282,.1628X2929Yb292,.1654X3030Yb302,.1637X3131Yb312,.1579X3232Yb322,.1482X3333Yb332,.1346X3434Yb342,.1174X3535Yb352,.0964X3636Yb362,.0719X3737Yb372,.0440X3838Yb382,.0127X3939Yb391..9781X4040Yb401..9403X4141Yb411..8994X4242Yb421..8555X4343Yb431..8086X4444Yb441..7588X4545Yb451..7063X4646Yb461.6510X4747Yb471.5931X4848Yb481.5327X4949Yb491.4698X5050Yb501.4045X5151Yb511.3369X5252Yb521.2670X5353Yb531.1949X5454Yb541.1208X5555Yb551.0446X5656Yb560.9636X5757Yb570.8758X5858Yb580.7833X5959Yb590.6886X6060Yb600.5948X6161Yb610.5022X6262Yb620.4111X6363Yb630.3219X6464Yb640.2347X6565Yb650.1501X6666Yb660.0683X6767Yb67-0.01X6868Yb68-0.0860X6969Yb69-0.1570X7070Yb70-0.2240X7171Yb71-0.2870X7272Yb72-0.3460X7373Yb73-0.3990X7474Yb74-0.4470X7575Yb75-0.4900X7676Yb76-0.5270X7777Yb77-0.5580X7878Yb78-0.5820X7979Yb79-0.5990X8080Yb80-0.6100X8181Yb81-0. 6120X8282Yb82-0. 6070X8383Yb83-0.5920X8484Yb84-0.5690X8585Yb85-o.5360X8686Yb86-o.4930X8787Yb87-0.4400X8888Yb88-0.3770X8989Yb89-0.3020X9090Yb90-0.2160X9191Yb91-0.1160X9292Yb92-0.0023X9393Yb930.1307X9494Yb940.2872X9595Yb950.4719X9696Yb960.6922X9797Yb970.9385X9898Yb981.2517X9999Yb991.7502Xr100Yr 3.5176 ；曲线:Xp57.5Ycp18.9571X5858Yc5818,.4603X5959Yc5918,.4641X6060Yc6018,.4205X6161Yc6118,.3248X6262Yc6218,.1776X6363Yc6317,.9818X6464Yc6417,.7528X6565Yc6517,.4908X6666Yc6617,.1927X6767Yc6716,.8549X6868Yc6816,.4728X6969Yc6916,.0407X7070Yc7015,.5518X7171Yc7114,.9969X7272Yc7214,.3643X7373Yc7313,.6378X7474Yc7412,.7947X7575Yc7511,.6926Xq757Yq9.221 ；曲线:Xp57.5Ydp18.9571X5858Yd5819,.4555X5959Yd5919,.4836X6060Yd6019,.5035X6161Yd6119,.515X6262Yd6219,.5178X6363Yd6319,.5119X6464Yd6419,.4968X6565Yd6519,.4724X6666Yd6619,.4383X6767Yd6719,.3942X6868Yd6819,.3396X6969Yd6919,.2743X7070Yd7019,.1978X7171Yd7119,.1096X7272Yd7219,.0092X7373Yd7318,.8962X7474Yd7418,.7700X7575Yd7518,.6300X7676Yd7618,.4755X7777Yd7718,.3060X7878Yd7818,.1207X7979Yd7917,.9188X8080Yd8017,.6994X8181Yd8117,.4613X8282Yd8217,.2037X8383Yd8316,.9251X8484Yd8416,.6243X8585Yd8516,.2995X8686Yd8615,.9492X8787Yd8715,.5711X8888Yd8815,.1624X8989Yd8914,.7200X9090Yd9014.2402X9191Yd9113.7183X9292Yd9213.1485X9393Yd9312.5238X9494Yd9411.8355X9595Yd9511.0676X9696Yd9610.1992
15X9797Yd979.1976X9898Yd987.9982X9999Yd996.4736Xr100Yr 3.5176 ；
将上述各曲线坐标点用曲线连接起来，即得到叶片截形轮廓。上述具有较高风能利用效率的垂直轴风力发电机，所述横撑杆的截面形状与叶 片的截面形状相同，所述横撑杆钩状端朝上设置。上述具有较高风能利用效率的垂直轴风力发电机，所述叶片数目》。本发明针对提高垂直轴风力发电机风能利用率及低风速发电性能等问题进行了 改进，提供了一种全新结构的垂直轴风力发电机，所述风机通过对叶片及横撑杆截形的 优化设计，可明显增大风阻力，提高风阻力差，尤其是风机在较低风速下的发电能力可 大幅度提高。对比试验表明，与同类垂直轴风力发电机相比，本发明低风速时发电机发 电电压提高近10倍，高风速时发电电压提高50%以上。基于上述特点，本发明在垂直 轴风力发电机应用领域，具有良好的应用前景。
图1是本发明结构示意图； 图2是叶片轴测图3是叶片及横撑杆横截面示意图； 图4是叶片及横撑杆截面轮廓坐标参数示意图。图中标号含义如下1.中心柱；2.横撑杆；3.叶片；3-1.钩状端。
具体实施例方式参看图1、图2，本发明是一种对叶片及横撑杆进行全新设计的垂直轴大风力发 电机，其构成中包括中心柱1、叶片3和横撑杆2，各叶片垂直设置，它们相对中心柱轴 线均勻分布，叶片由横撑杆连接中心柱。本发明叶片3的截面形状与横撑杆2的截面形状 相同，叶片截形的一侧为一钩状端3-1，叶片及横撑杆安装时，叶片钩状端的钩部朝外设 置、横撑杆钩状端的钩部端朝上设置，叶片的钩状端端部与叶片的钩状端端部接合。本 发明风机叶片数目>2，图示为5叶片，叶片通常使用2-12片。参看图3，本发明叶片2及横撑杆的截形轮廓由O-Q、O-R、P-Q、P-R四条曲 线组成封闭曲线，其中O点和R点为截形的两个端点。上述四条曲线由下述参数确定 参看图4，建立平面直角坐标系，以所述叶片及横撑杆截形轮廓的一端O点为坐标原点， 将各曲线由相应X、Y值确定的坐标点用光滑曲线连接，即得到叶片及横撑杆截形轮廓曲 线。上述X值和Y值具有相同的长度单位。上述截形轮廓曲线是经过对叶片、横撑杆翼型气动性能研究、计算、模拟和反 复试验得出，采用该叶片、横撑杆翼型，可以明显增大风阻力，提高风阻力差，尤其是 在较低风速下的发电能力可以大幅度提高。以下给出一组对比数据
对比风机本发明风机
5叶片，叶长1.5米，直径为1.6米 5叶片，叶片长0.8米，直径1米风速(M/S)电压(V)风速(M/S)电压(V)5.6-6.50-0.15.8-7.210.6-11.27.9-8.90.2-1.58.1-9.613.6-14.411.5-12.85.2-8.610.6-11.517.9-18.615.5-17.112.3-13.114.5-15.525.5-26.619.1-22.417.1-18.321.632
以下给出本发明的一个实施例风机为如图1所示的5叶片结构，叶片长度为1米， 横撑杆长度为0.5米。叶片与横撑杆截面形状如图3所示，叶片及横撑杆截形轮廓由 O-Q> O-R、P-Q> P-R四条曲线组成。参看图4，上述四条曲线由下述参数确定在 叶片及横撑杆截形轮廓图上建立平面直角坐标系，以所述截形的O点为坐标原点，各曲 线相应坐标点的长度单位为厘米，各曲线坐标值如下 O-Q曲线
Xo0Yao0Xl1Yal0.6312X22Ya20.8929X33Ya31.1320X44Ya41.3510X55Ya51.5522X66Ya61.7376X77Ya71.9089X88Ya82.0674X99Ya92.2146XlO10YalO2,.3518Xll11Yall2,.4797X1212Yal 22,.5988X1313Yal 32,.7097X1414Yal42,.8130X1515Yal 52,.9092X1616Yal62,.9986X1717Yal 73,.0814X1818Yal83,.1579X1919Yal93,.2284X2020Ya203,.2930X2121Ya213,.3520X2222Ya223,.4056X2323Ya233,.4539X2424Ya243,.4971X2525Ya253,.5354X2626Ya263,.5690X2727Ya273,.5979X2828Ya283,.6224X2929Ya293,.6425X3030Ya303,.6584X3131Ya313,.6702X3232Ya323,.6780X3333Ya333,.6820X3434Ya343,.6823X3535Ya353,.6789X3636Ya363,.6720X3737Ya373,.6616X3838Ya383,.6479X3939Ya393,.6309X4040Ya403,.6106X4141Ya413,.5873X4242Ya423,.5609X4343Ya433,.5316X4444Ya443,.4994X4545Ya453,.4645X4646Ya463,.4268X4747Ya473,.3865X4848Ya483,.3437X4949Ya493,.2984X5050Ya503,.2507X5151Ya513,.2007X5252Ya523,.1484X5353Ya533,.0940X5454Ya543,.0375X5555Ya552,.9789X5656Ya562,.9160X5757Ya572,.8496X5858Ya582,.7902X5959Ya592,.7403X6060Ya602,.7024X6161Ya612,.6789X6262Ya622,.6727X6363Ya632,.6868X6464Ya642,.7242X6565Ya652,.7887X6666Ya662.8841X6767Ya673.0150X6868Ya683.1867X6969Ya693.4054X7070Ya703.6785X7171Ya714.0150X7272Ya724.4263X7373Ya734.9268X7474Ya745.5741X7575Ya756.6965Xq75.7Yq 9.2210 ；L曲线:Xo0Ybo0Xl1Ybl-0.337X22Yb2-0.0 96X33Yb30.1236X44Yb40. 3231X55Yb50.5052X66Yb60.6717X77Yb70. 8243X88Yb80. 9643X99Yb91.0932XlO10YblO1.2121Xll11Ybll1.3219X1212Ybl21.4229X1313Ybl31.5159X1414Ybl41.6013X1515Ybl51.6796X1616Ybl61.7512X1717Ybl71.8162X1818Ybl81.8749X1919Ybl91.9276X2020Yb201.9745X2121Yb212.0159X2222Yb222.0518X2323Yb232.0824X2424Yb242.1080X2525Yb252.1287X2626Yb262.1446Yb272,.1560X2828Yb282,.1628X2929Yb292,.1654X3030Yb302,.1637X3131Yb312,.1579X3232Yb322,.1482X3333Yb332,.1346X3434Yb342,.1174X3535Yb352,.0964X3636Yb362,.0719X3737Yb372,.0440X3838Yb382,.0127X3939Yb391..9781X4040Yb401..9403X4141Yb411..8994X4242Yb421..8555X4343Yb431..8086X4444Yb441..7588X4545Yb451..7063X4646Yb461..6510X4747Yb471..5931X4848Yb481..5327X4949Yb491..4698X5050Yb501..4045X5151Yb511..3369X5252Yb521..2670X5353Yb531..1949X5454Yb541..1208X5555Yb551..0446X5656Yb560.9636X5757Yb570.8758X5858Yb580.7833X5959Yb590.6886X6060Yb600.5948X6161Yb610.5022X6262Yb620.4111X6363Yb630.3219X6464Yb640.2347X6565Yb650.1501X6666Yb660.0683X6767Yb67-o,.01X6868Yb68-o,.0860X6969Yb69-o,.1570X7070Yb70-o,.2240X7171Yb71-o,.2870X7272Yb72-o,.3460X7373Yb73-o,.3990X7474Yb74-o,.4470X7575Yb75-o,.4900X7676Yb76-o,.5270X7777Yb77-o,.5580X7878Yb78-o,.5820X7979Yb79-o,.5990X8080Yb80-o,.6100X8181Yb81-o.6120X8282Yb82-o,.6070X8383Yb83-o,.5920X8484Yb84-o,.5690X8585Yb85-o,.5360X8686Yb86-o,.4930X8787Yb87-o,.4400X8888Yb88-o,.3770X8989Yb89-o,.3020X9090Yb90-o,.2160X9191Yb91-o,.1160X9292Yb92-o,.0023X9393Yb930.1307X9494Yb940.2872X9595Yb950.4719X9696Yb960.6922X9797Yb970.!9385X9898Yb981.2517X9999Yb991.7502Xr100Yr 3.5176 ；ι曲线:Xp57.5Ycp18.9571X5858Yc5818.4603X5959Yc5918.4641
21X6060Yc6018.4205X6161Yc6118.3248X6262Yc6218.1776X6363Yc6317.9818X6464Yc6417.7528X6565Yc6517.4908X6666Yc6617.1927X6767Yc6716.8549X6868Yc6816.4728X6969Yc6916.0407X7070Yc7015.5518X7171Yc7114.9969X7272Yc7214.3643X7373Yc7313.6378X7474Yc7412.7947X7575Yc7511.6926Xq75.7Yq9.2210 ；曲线:Xp57.5Ydp18.9571X5858Yd5819.4555X5959Yd5919.4836X6060Yd6019.5035X6161Yd6119.515X6262Yd6219.5178X6363Yd6319.5119X6464Yd6419.4968X6565Yd6519.4724X6666Yd6619.4383X6767Yd6719.3942X6868Yd6819.3396X6969Yd6919.2743X7070Yd7019.1978X7171Yd7119.1096X7272Yd7219.0092X7373Yd7318.8962X7474Yd7418.7700X7575Yd7518.6300X7676Yd7618.4755X7777Yd7718.3060X7878Yd7818,.1207X7979Yd7917,.9188X8080Yd8017,.6994X8181Yd8117,.4613X8282Yd8217,.2037X8383Yd8316,.9251X8484Yd8416,.6243X8585Yd8516,.2995X8686Yd8615,.9492X8787Yd8715,.5711X8888Yd8815,.1624X8989Yd8914,.7200X9090Yd9014.2402X9191Yd9113.7183X9292Yd9213.1485X9393Yd9312.5238X9494Yd9411.8355X9595Yd9511.0676X9696Yd9610.1992X9797Yd979.1976X9898Yd987.9982X9999Yd996.4736Xr100Yr 3.5176
将上述各曲线坐标点用曲线连接起来，即得到叶片及横撑杆截形轮廓。
对于不同规格的风机，将上述坐标值参数比例放大或缩小而生产的叶片及横撑 杆截形亦可以实现本发明目的，故均落入本发明的保护范围中。
权利要求
1. 一种具有较高风能利用效率的垂直轴风力发电机，构成中包括中心柱(1)、叶片 (3)和横撑杆(2)，各叶片垂直设置，它们相对中心柱轴线均勻分布，叶片由横撑杆 连接中心柱，其特征在于所述叶片的一侧为钩状端(3-1)，钩状端朝外设置；所述 叶片截形轮廓由O-Q、O-R、P-Q、P-R四条曲线组成、四条曲线由下述参数确定 建立平面直角坐标系，以所述截形的一端为坐标原点，各曲线相应点的坐标值如下O-Q曲线Xo0 Yao0Xl1Yal0.6312X22Ya20. 8929X33Ya31.1320X44Ya41.3510X55Ya51.5522X66Ya61.7376X77Ya71.9089X88Ya82.0674X99Ya92.2146XlO10YalO2.3518Xll11Yall2.4797X1212Yal 22.5988X1313Yal 32.7097X1414Yal42.8130X1515Yal 52.9092X1616Yal62.9986X1717Yal 73.0814X1818Yal83.1579X1919Yal93.2284X2020Ya203.2930X2121Ya213.3520X2222Ya223.4056X2323Ya233.4539X2424Ya243.4971X2525Ya253.5354X2626Ya263.5690X2727Ya273.5979X2828Ya283.6224X2929Ya293.6425X3030Ya303.6584X3131Ya313.6702X3232Ya323.6780X3333Ya333.6820X3434Ya343.6823X3535Ya353,.6789X3636Ya363,.6720X3737Ya373,.6616X3838Ya383,.6479X3939Ya393,.6309X4040Ya403,.6106X4141Ya413,.5873X4242Ya423,.5609X4343Ya433,.5316X4444Ya443,.4994X4545Ya453,.4645X4646Ya463,.4268X4747Ya473,.3865X4848Ya483,.3437X4949Ya493,.2984X5050Ya503,.2507X5151Ya513,.2007X5252Ya523,.1484X5353Ya533,.0940X5454Ya543,.0375X5555Ya552,.9789X5656Ya562,.9160X5757Ya572,.8496X5858Ya582,.7902X5959Ya592,.7403X6060Ya602,.7024X6161Ya612,.6789X6262Ya622,.6727X6363Ya632,.6868X6464Ya642,.7242X6565Ya652,.7887X6666Ya662,.8841X6767Ya673,.0150X6868Ya683,.1867X6969Ya693,.4054X7070Ya703,.6785X7171Ya71 4.0150X7272Ya72 4.4263X7373Ya73 4.9268X7474Ya74 5.5741X7575Ya75 6.6965Xq75.7Yq 9.2210 ； O-R曲线XoOYbo OXI1Ybl -ο. 337 X22Yb2 -0.0 96 X33Yb3 0. 1236 X44Yb4 0. 3231 X55Yb5 0. 5052 X66Yb6 0.6717 X77Yb7 0.8243 X88Yb8 0.9643 X99Yb9 1.0932 XlO10YblO 1.2121XII11Ybll 1.3219 X1212Ybl2 1.4229 X1313Ybl3 1.5159 X1414Ybl4 1.6013 X1515Ybl5 1.6796 X1616Ybl6 1.7512 X1717Ybl7 1.8162 X1818Ybl8 1.8749 X1919Ybl9 1.9276 X2020Yb20 1.9745 X2121Yb21 2.0159 X2222Yb22 2.0518 X2323Yb23 2.0824 X2424Yb24 2.1080 X2525Yb25 2.1287 X2626Yb26 2.1446 X2727Yb27 2.1560 X2828Yb28 2.1628 X2929Yb29 2.1654 X3030Yb30 2.1637 X3131Yb31 2.1579X3232Yb322.1482X3333Yb332.1346X34 34Yb342.1174X3535Yb352.0964X3636Yb362.0719X3737Yb372.0440X3838Yb382.0127X3939Yb391.9781X4040Yb401.9403X4141Yb411.8994X4242Yb421.8555X4343Yb431.8086X44 44Yb441.7588X4545Yb451.7063X4646Yb461.6510X4747Yb471.5931X4848Yb481.5327X4949Yb491.4698X5050Yb501.4045X5151Yb511.3369X5252Yb521.2670 X5353Yb531.1949X54 54Yb541.1208X5555Yb551.0446X5656Yb560.9636X5757Yb570.8758X5858Yb580. 7833X5959Yb590.6886X6060Yb600.5948X6161Yb610.5022X6262Yb620.4111X6363Yb630.3219X64 64Yb640.2347X6565Yb650.1501X6666Yb660.0683X6767Yb67-0.01X6868Yb68-0.0860X6969Yb69-0.1570X7070Yb70-0.2240X7171Yb71-0.2870X7272Yb72-0.3460X7373Yb73-0.3990X7474Yb74-0.4470X7575Yb75-0.4900X7676Yb76-0. 5270X7777Yb77-0.5580X7878Yb78-0.5820X7979Yb79-0.5990X8080Yb80-0.6100X8181Yb81-0.6120X8282Yb82-0.6070X8383Yb83-0. 5920X8484Yb84-0. 5690X8585Yb85-0. 5360X8686Yb86-0.4930X8787Yb87-0.4 400X8888Yb88-0.3770X8989Yb89-0.3020X9090Yb90-0.2160X9191Yb91-0.1160X9292Yb92-0.0023X9393Yb930.1307X9494Yb940.2872X9595Yb950.4719X9696Yb960.6922X9797Yb970.9385X9898Yb981.2517X9999Yb991.7502Xr100Yr 3.5176 ； P-Q曲线Xp57.5Ycp18.9571X5858Yc5818.4603X5959Yc5918.4641X6060Yc6018.4205X6161Yc6118.3248X6262Yc6218.1776X6363Yc6317.9818X6464Yc6417.7528X6565Yc6517.4908X6666Yc6617.1927X6767Yc6716.8549X6868Yc6816.4728X6969Yc6916.0407X7070Yc7015.5518X7171Yc7114.9969X7272Yc7214.3643X7373Yc7313.6378X7474Yc7412.7947X7575Yc7511.6926Xq757Yq9.221 ； P-R曲线Xp57.5Ydp18.9571X5858Yd5819.4555X5959Yd5919.4836X6060Yd6019.5035X6161Yd6119.515X6262Yd6219.5178X6363Yd6319.5119X6464Yd6419.4968X6565Yd6519.4724X6666Yd6619.4383X6767Yd6719.3942X6868Yd6819.3396X6969Yd6919.2743X7070Yd7019.1978X7171Yd7119.1096X7272Yd7219.0092X7373Yd7318.8962X7474Yd7418.7700X7575Yd7518.6300X7676Yd7618.4755X7777Yd7718.3060X7878Yd7818.1207X7979Yd7917.9188 X8080Yd8017.6994X8181Yd8117.4613X8282Yd8217.2037X83 83 Yd83 16.9251 X84 84 Yd84 16.6243 X85 85 Yd85 16.2995 X86 86 Yd86 15.9492 X87 87 Yd87 15.5711 X88 88 Yd88 15.1624 X89 89 Yd89 14.7200 X90 90 Yd90 14.2402 X91 91 Yd91 13.7183 X92 92 Yd92 13.1485 X93 93 Yd93 12.5238 X94 94 Yd94 11.8355 X95 95 Yd95 11.0676 X96 96 Yd96 10.1992 X97 97 Yd97 9.1976 X98 98 Yd98 7.9982 X99 99 Yd99 6.4736 Xr 100 Yr 3.5176 ；将上述各曲线坐标点用曲线连接起来，即得到叶片截形轮廓。
2.根据权利要求1所述的具有较高风能利用效率的垂直轴风力发电机，其特征在于 所述横撑杆(2)的截面形状与叶片(3)的截面形状相同，所述横撑杆钩状端朝上设 置。
3.根据权利要求1或2所述的具有较高风能利用效率的垂直轴风力发电机，其特征在 于所述叶片数目≥2。
全文摘要
一种具有较高风能利用效率的垂直轴风力发电机，构成中包括中心柱、叶片和横撑杆，各叶片垂直设置，它们相对中心柱轴线均匀分布，叶片由横撑杆连接中心柱,改进后,所述各叶片的截形轮廓由O-Q、O-R、P-Q、P-R四条曲线组成，所述叶片截形的一侧为钩状端，钩状端朝外设置。本发明通过对叶片及横撑杆截形的优化设计，可明显增大风阻力，提高风阻力差，尤其是风机在较低风速下的发电能力可大幅度提高。对比试验表明，与同类垂直轴风力发电机相比，本发明低风速时发电机发电电压提高近10倍，高风速时发电电压提高50%以上。
文档编号F03D3/06GK102022258SQ201010563778
公开日2011年4月20日 申请日期2010年11月29日 优先权日2010年11月29日
发明者张远林 申请人:张远林