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    • 14. 发明专利
    • Wind power generator, and method of estimating wind direction thereof
    • 风力发电机及其风向估算方法
    • JP2010156317A
    • 2010-07-15
    • JP2009000398
    • 2009-01-05
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • HASHIMOTO MASAYUKIWAKASA TSUYOSHIMATSUSHITA TAKATOSHI
    • F03D7/04
    • F03D7/0204F03D7/042F05B2200/221F05B2260/821F05B2270/321F05B2270/335Y02E10/723
    • PROBLEM TO BE SOLVED: To azimuth-control a nacelle to be directed to a front face with respect to an actual main wind direction. SOLUTION: This wind power generator detects the main wind direction by an anemoscope (wind direction detecting means) 11, assumes an actual wind direction, by assuming a wind direction offset value that is a deviation between a main wind direction in a prescribed wind speed and a practical wind direction of the actual wind direction, by a wind direction assuming part (wind direction assuming means) 25, calculates an average electric power output in a prescribed time in the assumed actual wind direction, by an average electric power output calculating part (average electric power output calculating meas) 26, approximates the average electric power output in the assumed wind direction offset value to a quadratic curve, by an actual wind direction estimating part (actual wind direction estimating means) 27, and estimates the actual wind direction by estimating the wind direction offset value at the time when the average electric power output in the approximated quadratic curve gets maximum, as an actual offset value. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:将方位控制相对于实际主风向指向前表面的机舱。

      解决方案:风力发电机通过风力计(风向检测装置)11检测主风向,假定为实际风向,假设风向偏移值为规定的主风向之间的偏差 通过风向假定部(风向假定装置)25的风速和实际风向的实际风向,以假定的实际风向计算规定时间内的平均电力输出,平均电力输出 计算部分(平均功率输出计算meas)26通过实际风向估计部(实际风向估计装置)27将假设的风向偏移值的平均电力输出近似为二次曲线,并且估计实际 通过估计近似二次曲线中的平均电力输出达到最大时的风向偏移值来计算风向 imum,作为实际的偏移值。 版权所有(C)2010,JPO&INPIT

    • 15. 发明专利
    • Rotational power unit for wind power generation apparatus and wind power generation apparatus
    • 用于风力发电装置和风力发电装置的旋转动力装置
    • JP2013181426A
    • 2013-09-12
    • JP2012044502
    • 2012-02-29
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MORI SHINICHIROWAKASA TSUYOSHIMATSUSHITA TAKATOSHI
    • F03D9/00
    • Y02E10/72
    • PROBLEM TO BE SOLVED: To provide a rotational power unit for a wind power generation apparatus capable of generating rotational power used by in-hub equipment in a hub without using a power source, and to provide the wind power generation apparatus.SOLUTION: A rotational power unit 10 is applied to a wind power generation apparatus having a nacelle 3, a hub 4 which is rotatably supported by the nacelle 3, and blades mounted to the hub 4. The rotation power unit includes a ring gear 21 rotating together with the hub 4, a planetary gear 23 rotatably supported to the planetary gear 24 and engaged with the ring gear 21, and a sun gear 22 engaged with the planetary gear 23 and outputting rotation power, and also comprise a planetary gear part 20 arranged in the hub 4, and a wight 14 connected to the planetary pin 24. An absolute position of the planetary pin 24 is fixed irrespective of the rotation of the hub 4 by the fact that the weight 14 has a gravity center in a position apart from an axial core of the sun gear 22.
    • 要解决的问题:提供一种用于能够在不使用电源的情况下产生轮毂内设备在轮毂内使用的旋转动力的风力发电装置的旋转动力单元,并且提供风力发电装置。解决方案:旋转 动力单元10被施加到具有机舱3的风力发电装置,由机舱3可旋转地支撑的轮毂4和安装到轮毂4的叶片。旋转动力单元包括与轮毂一起旋转的环形齿轮21 如图4所示,行星齿轮23可旋转地支撑在行星齿轮24上并与齿圈21啮合,以及与行星齿轮23啮合并输出旋转动力的太阳齿轮22,还包括设置在轮毂4中的行星齿轮部20 以及连接到行星销24的视线14.行星销24的绝对位置通过轮毂4的旋转而被固定,因为重物14具有与重心14不同的位置的重心 太阳齿轮22的轴心。
    • 17. 发明专利
    • Piston controller, wind turbine generator, and piston control method
    • 活塞控制器,风力发电机和活塞控制方法
    • JP2013155694A
    • 2013-08-15
    • JP2012018007
    • 2012-01-31
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IWASAKI SATOSHIWAKASA TSUYOSHIICHINOSE HIDEKAZU
    • F04B1/04F03D1/06F03D9/00F04B1/047F04B1/053
    • F04B1/053F03D9/28F03D15/00F04B1/0413F04B1/0452F04B1/06F04B7/0076F04B49/065F04B49/22F05B2260/406Y02E10/721Y02P80/158
    • PROBLEM TO BE SOLVED: To suppress generation of resonance even when driving a hydraulic motor by flowing in and out hydraulic liquid by some of pistons.SOLUTION: A wind turbine generator 10 is provided with a circular cam, in which a plurality of peaks and valleys are alternately provided in the circumferential direction and which is connected to a rotor shaft 36, a hydraulic pump 32 that pumps working fluid by reciprocating motion of a plurality of pistons, which are disposed in a radiating pattern so as to be brought into abutment with the circumferential surface of the cam, caused by rotation of the shaft 36, and a hydraulic motor 34 that rotates a shaft 42 of a generator 29 by reciprocating motion of a plurality of pistons caused by the working fluid pumped from the hydraulic pump 32. When the hydraulic pump 32 is driven by some of the pistons, a hydraulic control unit 66 virtually divides positions at which the pistons are disposed into a plurality of divided regions and determines positions of the pistons to be driven for each of the divided regions such that the pistons to be driven do not have fixed intervals because the wind turbine generator 10 is operated in a partial load.
    • 要解决的问题:即使当通过一些活塞流入和流出液压液体驱动液压马达时,也抑制了共振的产生。解决方案:风力涡轮发电机10设置有圆形凸轮,其中多个峰和谷 在圆周方向上交替设置,并且连接到转子轴36上,液压泵32通过多个活塞的往复运动来泵送工作流体,这些活塞以放射状图案设置成与第一 由轴36的旋转引起的凸轮的圆周表面以及通过由从液压泵32泵送的工作流体引起的多个活塞的往复运动而使发电机29的轴42旋转的液压马达34。 液压泵32由一些活塞驱动,液压控制单元66将活塞的位置实际上划分成多个分割区域并确定 对于每个分割区域要驱动的活塞的位置,使得待驱动的活塞不具有固定的间隔,因为风力涡轮发电机10以部分负载运行。
    • 18. 发明专利
    • Arithmetic device, method, program, wind power generation equipment provided with them, and wind farm
    • 算术设备,方法,程序,风力发电设备及风力发电设备
    • JP2013142291A
    • 2013-07-22
    • JP2012001456
    • 2012-01-06
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IGAWA YOSHIKATSUYASUGI AKIRAWAKASA TSUYOSHINAKA TAKEHIRO
    • F03D7/04
    • Y02E10/723
    • PROBLEM TO BE SOLVED: To provide an arithmetic device, method and program, wind power generation equipment provided with them, and a wind farm capable of adjusting effective power without using information of wind velocity.SOLUTION: The arithmetic device has first correspondence information in which the tip speed ratio, power coefficient and pitch angle of a wind mill blade are associated with one another, and includes: an output instruction maximum value determination part 25 which determines the maximum value of output instruction value of a power generator based on a reduction instruction value which reduces the rated output of a power generator by a prescribed amount; a minimum pitch angle determination part 26 which determines a reduction pitch angle as a pitch angle corresponding to a reduction instruction value based on second correspondence information in which the reduction rate of reduction instruction value calculated based on the power coefficient of the first correspondence information and the value of pitch angle obtained by calculating the reduction rate are associated with each other; and an output instruction value determination part 27 which determines the combination of the tip speed ratio for maintaining the number of rotations of the power generator and the power coefficient based on the first correspondence information and the reduction pitch angle and determines the output instruction value based on the determined combination result.
    • 要解决的问题:提供一种运算装置,方法和程序,具有它们的风力发电设备,以及能够在不使用风速信息的情况下调节有效功率的风力发电场。解决方案:运算装置具有第一对应信息,其中 风车叶片的叶尖速度比,功率系数和俯仰角彼此相关联,并且包括:输出指令最大值确定部25,其基于减小指令确定发电机的输出指令值的最大值 将发电机的额定输出降低规定量的值; 最小桨距角确定部26,其基于第二对应信息确定作为与减速指令值对应的俯仰角的减小俯仰角,其中基于第一对应信息的功率系数计算的减速指令值的减小率,以及 通过计算减速率获得的俯仰角的值彼此相关联; 以及输出指示值确定部27,其基于第一对应信息和减小俯仰角确定用于维持发电机的转数和功率系数的前端速比的组合,并且基于 确定的组合结果。
    • 19. 发明专利
    • Control device for wind power generation device, wind power generation system, and control method for wind power generation device
    • 风力发电装置的控制装置,风力发电系统及风力发电装置的控制方法
    • JP2012140902A
    • 2012-07-26
    • JP2010294142
    • 2010-12-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • WAKASA TSUYOSHISHINODA NAONOBUHASHIMOTO MASAYUKIYAMASHITA YUKIONAKA TAKEHIROYASUGI AKIRANAKAJIMA TAKUMI
    • F03D7/04
    • H02P9/007F03D7/0284F03D9/255F05B2270/337H02P2101/15Y02E10/723
    • PROBLEM TO BE SOLVED: To prevent such a trouble that a wind power generation device cannot supply power to a power system due to an excessive increase/decrease in power generation output when a fluctuation in the frequency of the power system is recovered.SOLUTION: A wind turbine control device supplies power to the power system by a multi-blade rotor receiving the wind and rotating and by a power generator generating power by the rotation of the rotor, and controls the wind power generation device capable of varying the amount of power to be supplied to the power system according to the fluctuation in the frequency of the power system. A subtractor 62 provided in the wind turbine control device calculates a frequency variation amount, which is the difference between a frequency measurement value of the power generation output of the wind power generation device and a frequency setting value of the power generation output of the wind power generation device. On the basis of the number of rotations of the power generator, a limiting unit 66 limits the power variation amount according to the frequency variation amount calculated by the subtractor 62.
    • 要解决的问题:为了防止当电力系统的频率波动恢复时风力发电装置不能由于发电输出的过度增减而向电力系统供电, 解决方案:风力发电机控制装置通过接收风的多叶片转子和通过转子的旋转产生动力的发电机向电力系统供电,并且控制能够 根据电力系统的频率波动来改变供给电力系统的功率量。 设置在风力涡轮机控制装置中的减法器62计算作为风力发电装置的发电输出的频率测量值与风力发电输出的频率设定值之间的差的频率变化量 生成装置。 基于发电机的转数,限制单元66根据由减法器62计算的频率变化量来限制功率变化量。(C)2012年,JPO和INPIT
    • 20. 发明专利
    • Variable speed generator and control method thereof
    • 变速发电机及其控制方法
    • JP2011147311A
    • 2011-07-28
    • JP2010008177
    • 2010-01-18
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • WAKASA TSUYOSHIYASUGI AKIRAMATSUSHITA TAKATOSHINAKA TAKEHIRONAKAJIMA TAKUMI
    • H02P9/00F03D9/00H02P9/04
    • H02P9/48F03D7/0272F03D7/028F03D7/042F05B2270/1016H02J3/1892H02J3/382H02J3/386H02P9/04H02P2101/15Y02E10/723Y02E10/725Y02E10/763
    • PROBLEM TO BE SOLVED: To assure the variable speed range of a wound-rotor induction generator while supplying a reactive power according to a reactive power supply command from the power system side. SOLUTION: A variable speed generator 1 includes a prime mover which generates power by using natural energy, a generator 6 having a stator equipped with a primary winding connected with a power system 2 and a rotor equipped with a secondary winding and generating electricity based on the power generated from the prime mover, and a power converter 17 connected to the stator side and the rotor side. The power converter 17 is provided with a power converter control unit 21 which does not supply reactive power to the power system 2 and increases the reactive power supplied to the power system 2 side by operating the generator 6 at the number of revolutions set equal to or higher than the synchronous speed when the reactive power supply command for increasing the reactive power supplied to the power system 2 side is acquired from the power system 2 side. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了确保绕组转子感应发电机的可变速度范围,同时根据来自电力系统侧的无功电力指令提供无功功率。 变速发电机1包括通过使用自然能产生动力的原动机,具有定子的发电机6,该定子配备有与电力系统2连接的初级绕组和配备有次级绕组的转子并发电 基于从原动机产生的动力,以及与定子侧和转子侧连接的动力转换器17。 功率转换器17设置有电力转换器控制单元21,其不向电力系统2提供无功功率,并且通过以等于或等于或等于的转数操作发电机6来增加提供给电力系统2侧的无功功率 高于同步速度,当从电力系统2侧获取用于增加提供给电力系统2侧的无功功率的无功电力指令时。 版权所有(C)2011,JPO&INPIT