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    • 21. 发明授权
    • Squirrel-cage rotor for induction motor
    • 感应电动机用鼠笼式转子
    • US5572080A
    • 1996-11-05
    • US318885
    • 1995-01-06
    • Kosei NakamuraYoshiyuki HayashiHisashi Maeda
    • Kosei NakamuraYoshiyuki HayashiHisashi Maeda
    • H02K17/16H02K7/16
    • H02K17/165
    • A squirrel-cage rotor 10 includes a plurality of slots 16 for accommodating secondary conductors 18 along the outer circumferential surface of a laminated core 14 fixed to a rotor shaft 12. Each slot 16 is defined by a wall having a generally elliptical profile in which a maximum circumferential distance D is larger than a maximum radial distance d in a given section orthogonal to an axis and axially penetrates near the outer circumferential surface of the laminated core 14. The radial inner profile of the slot 16 has a shape in which the tangents on given two points adjacent to the radial innermost portion of each slot wall do not cross at an acute angle in a section orthogonal to the axis, in order to prevent a stress concentration.
    • PCT No.PCT / JP94 / 00301 Sec。 371 1995年1月6日第 102(e)日期1995年1月6日PCT 1994年2月24日PCT公布。 WO94 / 19858 PCT公开号 日期1994年9月1日鼠笼式转子10包括多个狭槽16,用于沿着固定到转子轴12的层叠铁心14的外圆周表面容纳次级导体18.每个槽16由具有一般 其中最大周向距离D大于垂直于轴线的给定截面中的最大径向距离d,并且在层叠铁心14的外圆周表面附近轴向穿透。椭圆形轮廓的槽16的径向内轮廓具有形状 其中相邻于每个槽壁的径向最内部分的给定两点上的切线在与轴正交的截面中不以锐角交叉,以便防止应力集中。
    • 22. 发明授权
    • Rotor for a high speed induction type AC motor having a press fit
stacked core
    • 用于具有压配合堆芯的高速感应式交流电动机的转子
    • US5389847A
    • 1995-02-14
    • US974588
    • 1993-02-25
    • Kosei NakamuraYoshiyuki HayashiKazuhisa Numai
    • Kosei NakamuraYoshiyuki HayashiKazuhisa Numai
    • H02K1/30H02K17/16H02K1/00
    • H02K17/165
    • A rotor 14 for a high speed induction type ac motor having a construction such that the rotor is provided with an iron core 20 provided, at the periphery thereof, with a plurality of through-bores 22 in which electro-conductive rods 24 made of aluminum rod members are forcibly inserted in a press-fitting manner so as to form opposite projections from the axial opposite ends of the iron core 20, electro-conductive end rings 26 connected to the projections of the electro-conductive rods 24, and slitted pins 30 press-fit in small blind bores 32 formed in the projections of the electro-conductive rods 24 to thereby fixedly attach the electro-conductive rings 26 to the opposite end faces of the iron core 20.
    • PCT No.PCT / JP92 / 00814 Sec。 371日期:1993年2月25日 102(e)日期1993年2月25日PCT提交1992年6月26日PCT公布。 公开号WO93 / 00735 日本1993年1月7日。一种用于高速感应式交流电动机的转子14,其具有使得转子设置有铁芯20的结构,在其周边处设置有多个通孔22,其中电 由铝棒构件制成的导电杆24以压配合的方式强制插入,从而与铁芯20的轴向相对的端部形成相对的突出部,连接到导电的突起的导电端环26 杆24,并且切割销30压配合在形成在导电杆24的突起中的小盲孔32中,从而将导电环26固定地附接到铁芯20的相对端面。
    • 29. 发明授权
    • Blade-pitch-angle control device and wind power generator
    • 叶片桨距角控制装置和风力发电机
    • US07452185B2
    • 2008-11-18
    • US10567971
    • 2004-09-09
    • Kazunari IdeYoshiyuki HayashiMasaaki Shibata
    • Kazunari IdeYoshiyuki HayashiMasaaki Shibata
    • F03D7/04
    • F03D7/043F03D7/0224F03D7/024F05B2270/32F05B2270/326F05B2270/331F05B2270/335Y02E10/723
    • A blade-pitch-angle control device includes a memory unit in which predetermined parameters that affect the load fluctuation of blades, azimuth angles, and pitch-angle command values are stored in association with each other; an azimuth-angle detecting unit that detects the azimuth angle of each of the blades; a parameter-detecting unit that detects the predetermined parameters; a command-value receiving unit that receives pitch-angle command values for each of the blades from the memory unit, the pitch-angle command values being selected on the basis of the azimuth angle of each blade detected by the azimuth-angle detecting unit and the predetermined parameters detected by the parameter-detecting unit; and a pitch-angle-control command-value generating unit that generates pitch-angle-control command values for individually controlling the pitch-angle of each blade on the basis of the pitch-angle command values and a common-pitch-angle command value.
    • 叶片桨距角控制装置包括存储单元,其中影响叶片的负载波动的预定参数,方位角和俯仰角指令值彼此相关联地存储; 方位角检测单元,其检测各叶片的方位角; 检测预定参数的参数检测单元; 命令值接收单元,从存储单元接收每个叶片的俯仰角指令值,基于由方位角检测单元检测的每个叶片的方位角选择俯仰角指令值,以及 由参数检测单元检测的预定参数; 以及俯仰角控制指令值生成单元,其基于俯仰角指令值和公共俯仰角指令值,生成用于单独控制各叶片的俯仰角的俯仰角控制指令值 。
    • 30. 发明申请
    • Wind Turbine Generator, Active Damping Method Thereof, and Windmill Tower
    • 风力发电机,主动阻尼方法和风车塔
    • US20080206051A1
    • 2008-08-28
    • US10590328
    • 2004-11-12
    • Tsuyoshi WakasaKazunari IdeYoshiyuki HayashiMasaaki Shibata
    • Tsuyoshi WakasaKazunari IdeYoshiyuki HayashiMasaaki Shibata
    • F03D7/04F01D7/02G05D15/00
    • F03D7/0224F03D7/0296F03D7/043F03D9/25F05B2260/71F05B2260/74F05B2260/821F05B2260/96F05B2270/1021F05B2270/309F05B2270/334F05B2270/404F05B2270/807Y02B10/30Y02E10/723
    • A wind turbine generator, an active damping method thereof, and a windmill tower in which vibrations of the wind turbine generator itself or the windmill tower can be reduced at low cost are provided. The acceleration due to vibrations of a nacelle (13) is detected with an accelerometer (17) attached to the nacelle (13). In an active damping unit (20), a pitch angle of windmill blades (12) for generating a thrust on the windmill blades (12) so as to cancel out the vibrations of the nacelle (13) is calculated on the basis of the acceleration, and the pitch angle is output as a blade-pitch-angle command δθ* for damping. On the other hand, in a pitch-angle control unit (30), a pitch angle of the windmill blades (12) for controlling the output to be a predetermined value is calculated, and the pitch angle is output as a blade-pitch-angle command θ* for output control. The blade-pitch-angle command δθ* for damping is combined with the blade-pitch-angle command θ* for output control using a subtracter (40). The pitch angle of the windmill blades is controlled on the basis of the resulting blade-pitch-angle command after combining.
    • 提供了一种风力发电机,其主动阻尼方法和风车塔,其中可以以低成本降低风力涡轮发电机本身或风车塔的振动。 由于机舱(13)的振动引起的加速度是用安装在机舱(13)上的加速度计(17)来检测的。 在主动阻尼单元(20)中,基于加速度来计算用于在风车叶片(12)上产生推力以抵消机舱(13)的振动的风车叶片(12)的俯仰角, 并且作为用于阻尼的叶片间距角指令deltatheta输出俯仰角。 另一方面,在俯仰角控制单元(30)中,计算用于将输出控制为规定值的风车叶片(12)的俯仰角,作为叶片间距输出, 角度指令θ*用于输出控制。 使用减法器(40)将用于阻尼的叶片 - 俯仰角度指令deltatheta *与用于输出控制的叶片 - 俯仰角度指令θ*组合。 在组合之后,基于所得到的叶片间距角命令来控制风车叶片的俯仰角。