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    • 2. 发明申请
    • DUAL PURPOSE SLAT-SPOILER FOR WIND TURBINE BLADE
    • 用于风力涡轮叶片的双用途SLAT-SPOILER
    • WO2015113011A1
    • 2015-07-30
    • PCT/US2015/012979
    • 2015-01-27
    • SIEMENS AKTIENGESELLSCHAFTSIEMENS ENERGY, INC.
    • DIXON, Kristian R.MAYDA, Edward A.
    • F03D7/02
    • F03D7/0232F03D7/022F03D7/0256Y02E10/723
    • An aerodynamic slat (30) mounted over a forward suction side (40) of a wind turbine blade (22) and a mechanism (51A-F) that closes or reduces a gap (31) between slat and blade. The slat may pivot to reduce the gap, or the gap may be reduced by a device such as an extendable gate (58), or butterfly plate (59), or damper plate (60). Control logic (64) activates an actuator (70) of the mechanism to close or reduce the gap when wind conditions meet or exceed a predetermined criterion such as a rated wind condition. This reduces wind loading on the blade by separating airflow (53) over the suction side of the blade downstream of the slat. The blades can then maintain a higher angle of attack during rated wind conditions than in the prior art, allowing them to stall in gusts sooner to limit peak aerodynamic loads.
    • 安装在风力涡轮机叶片(22)的前吸力侧(40)上的气动板条(30)和闭合或减小板条和叶片之间的间隙(31)的机构(51A-F)。 板条可以枢转以减小间隙,或者可以通过诸如可延伸门(58)或蝶板(59)或阻尼板(60)的装置来减小间隙。 当风力条件达到或超过诸如额定风况的预定标准时,控制逻辑(64)启动机构的致动器(70)以关闭或减小间隙。 通过在叶片下游的叶片的吸力侧分离气流(53)来减少叶片上的风载荷。 然后,叶片在额定风条件下可以比现有技术中保持较高的迎角,从而允许它们更早地停止阵风以限制空气动力学上的高峰负荷。
    • 3. 发明申请
    • METHOD FOR RETROFITTING VORTEX GENERATORS ON A WIND TURBINE BLADE
    • 在风力涡轮叶片上改造VORTEX发生器的方法
    • WO2013014080A3
    • 2013-09-26
    • PCT/EP2012064298
    • 2012-07-20
    • LM WP PATENT HOLDING ASMADSEN JESPER
    • MADSEN JESPER
    • B64C23/06F01D5/14F03D1/06F03D7/02F03D7/04
    • F03D1/0658F03D1/0608F03D1/0633F03D7/0244F03D7/0256F03D7/04F03D17/00F03D80/50F05B2240/122Y02E10/721Y02E10/723Y10T29/49318
    • A method of retrofitting vortex generators (40) on a wind turbine blade (10) is disclosed, the wind turbine blade (10) being mounted on a wind turbine hub (8) and extending in a longitudinal direction and having a tip end (14) and a root end (16), the wind turbine blade (10) further comprising a profiled contour including a pressure side (52) and a suction side (54), as well as a leading edge (56) and a trailing edge (58) with a chord (60) having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The method comprises identifying a separation line (38) on the suction side (54) of the wind turbine blade (10), and mounting one or more vortex panels (36) including a first vortex panel comprising at least one vortex generator (40) on the suction side (54) of the wind turbine blade (10) between the separation line (38) and the leading edge (18) of the wind turbine blade.
    • 公开了一种在风力涡轮机叶片(10)上改装涡流发生器(40)的方法,所述风力涡轮机叶片(10)安装在风力涡轮机毂(8)上并沿纵向方向延伸并且具有尖端(14 )和根端(16),所述风力涡轮机叶片(10)还包括轮廓轮廓,所述轮廓包括压力侧(52)和吸力侧(54),以及前缘(56)和后缘 58)具有弦杆(60),弦杆长度在其之间延伸,异型轮廓在被入射气流冲击时产生升力。 该方法包括识别风力涡轮机叶片(10)的吸入侧(54)上的分离线(38),以及安装包括至少一个涡流发生器(40)的第一涡流板的一个或多个涡流板(36) 在分离管线(38)和风力涡轮机叶片的前缘(18)之间的风力涡轮机叶片(10)的吸力侧(54)上。
    • 9. 发明申请
    • WIND ROTOR BLADE AND WIND TURBINE COMPRISING SUCH BLADE
    • 风力转子叶片和包含这种叶片的风力涡轮机
    • WO2008052677A3
    • 2008-09-18
    • PCT/EP2007009147
    • 2007-10-22
    • LIGNUM VITAE LTDWAREK MICHAEL B
    • WAREK MICHAEL B
    • F03D1/06F03D3/06F03D7/02F03D11/02
    • F03D7/0224F03D1/0641F03D1/0675F03D3/062F03D7/0204F03D7/0256F03D15/05F03D80/30F05B2240/30F05B2240/311Y02E10/721Y02E10/74
    • The present invention relates to a wind rotor blade (1) for a wind turbine which is attachable to a hub (2) of the wind turbine at a preliminary adjusted blade pitch such that when a load is applied to the blade by the wind, the blade translates the load into thrust and torque that apply a rotational force to the hub about a rotational axis of the hub, the blade comprising a proximal end (3) configured to be attached to the hub, a distal end (5) opposite the proximal end, a windward side that extends from the proximal end to the distal end and faces a direction from which the load is applied and comprising at least one section of a leading edge fairing (7), a leeward side that extends from the proximal end to the distal end and which is opposite from the windward side and comprising at least one section of a trailing edge fairing (9), a central load bearing part or spar (11) extending essentially from the proximal end to the distal end of the blade and being capable to twist around a central axis of the spar, said at least one leading edge fairing and said at least one trailing edge fairing being attached to the central spar, wherein the blade responds to increases of the load applied by flexing to continuously change the blade pitch of said at least one leading and trailing edge fairing from the proximal end to the distal end of the blade, wherein the blade pitch is subject to a change from a positive lift to a negative lift along the blade from the proximal to the distal end thereof, so that the negative lift counteracts some of the positive lift in order to reduce the thrust and torque experienced by the blade as a result of the load.
    • 本发明涉及一种用于风力涡轮机的风力转子叶片(1),其可以预先调节的叶片桨距附接到风力涡轮机的轮毂(2),使得当通过风向叶片施加负载时, 叶片将负载平移到推力和扭矩中,所述推力和扭矩围绕毂的旋转轴线向轮毂施加旋转力,所述叶片包括构造成附接到轮毂的近端(3),与所述轮毂相对的远端(5) 末端,从近端延伸到远端并且面向施加负载的方向的迎风侧,并且包括前缘整流罩(7)的至少一个部分,从近端延伸到背部的背风侧 所述远端与所述迎风侧相对并且包括后缘整流罩(9),基本上从所述叶片的近端延伸到远端延伸的中心承载部件或翼梁(11)的至少一个部分,以及 能够扭转交流 所述翼梁的中心轴线,所述至少一个前缘整流罩和所述至少一个后缘整流罩附接到所述中心翼梁,其中所述叶片响应于通过弯曲施加的负载的增加,以连续地改变所述至少一个 从叶片的近端到远端的一个前缘和后缘整流罩,其中叶片间距从沿着叶片的近端到远端的正升力到负升力的变化,使得 负升力抵消了一些正升力,以减少叶片由于载荷而产生的推力和扭矩。