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16 条记录 (耗时 0.012 秒)

    WIND TURBINE GENERATOR, ACTIVE VIBRATION DAMPING METHOD FOR THE SAME, AND WIND TURBINE TOWER
    4.
    发明公开
    WIND TURBINE GENERATOR, ACTIVE VIBRATION DAMPING METHOD FOR THE SAME, AND WIND TURBINE TOWER 有权
    WINDTBINENGERERATOR，AKTIVESSCHWINGUNGSDÄMPFUNGSVERFAHRENDAFÜRUND WINDTBINENTURM

    公开(公告)号：EP1719910A4

    公开(公告)日：2012-02-22

    申请号：EP04821699

    申请日：2004-11-12

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： WAKASA TSUYOSHI ,  IDE KAZUNARI ,  HAYASHI Y ,  SHIBATA MASAAKI

    IPC分类号： F03D7/04

    CPC分类号： F03D9/002 ,  F03D7/0224 ,  F03D7/0296 ,  F03D7/043 ,  F03D9/25 ,  F05B2260/71 ,  F05B2260/74 ,  F05B2260/821 ,  F05B2260/96 ,  F05B2270/1021 ,  F05B2270/309 ,  F05B2270/334 ,  F05B2270/404 ,  F05B2270/807 ,  Y02B10/30 ,  Y02E10/723

    摘要： 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 ´¸* 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 ¸* for output control. The blade-pitch-angle command ´¸* for damping is combined with the blade-pitch-angle command ¸* 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.

    摘要翻译： 提供了风力发电机，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由安装在机舱（13）上的加速度计（17）检测。 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“R”输出桨距角。 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¸*用于输出控制。 使用减法器（40）将用于阻尼的叶片间距角指令“R”与叶片间距角命令¸*组合以进行输出控制。 在组合之后，基于所得到的叶片桨距角命令来控制风车叶片的桨距角。

    EXHAUST GAS RECIRCULATION DEVICE FOR INTERNAL COMBUSTION ENGINE
    8.
    发明公开
    EXHAUST GAS RECIRCULATION DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
    废气再循环装置用于内燃机

    公开(公告)号：EP2620630A4

    公开(公告)日：2014-08-06

    申请号：EP11826754

    申请日：2011-09-12

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： HIROE TAKAHARU ,  IDE KAZUNARI ,  YAMADA TOMOHIDE

    IPC分类号： F02M25/07 ,  F02D41/00 ,  F02D45/00

    CPC分类号： F02M25/077 ,  F02D41/0077 ,  F02M26/05 ,  F02M26/49 ,  Y02T10/47

    摘要： An exhaust gas recirculation device for an internal combustion engine includes: an opening command signal output unit 52 which outputs an opening command signal in relation to an EGR control valve on the basis of an operating condition of the internal combustion engine; a variation component separation unit 54 which separates the valve opening command signal from the opening command signal output unit 52 into a basic component and a variation component generated so as to be superimposed on the basic component; a variation component determination unit 56 which determines whether the EGR control valve is in a steady state or a transient state on the basis of a magnitude of the variation component separated by the variation component separation unit 54; and an EGR control valve diagnosis device 58 that performs an abnormality diagnosis on the EGR control valve when the variation component determination unit determines that the EGR control valve is in the steady state.

    WIND-POWERED ELECTRICAL GENERATOR AND BLADE PITCH CONTROL METHOD THEREFOR
    9.
    发明公开
    WIND-POWERED ELECTRICAL GENERATOR AND BLADE PITCH CONTROL METHOD THEREFOR 有权
    风力发电机和铲沥青及其控制方法

    公开(公告)号：EP2535574A4

    公开(公告)日：2013-12-18

    申请号：EP10713407

    申请日：2010-02-08

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： NAKASHIMA TAKUMI ,  BABA MITSUYA ,  HAYASHI YOSHIYUKI ,  IDE KAZUNARI

    IPC分类号： F03D7/04 ,  F03D7/02

    CPC分类号： F03D7/043 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/0264 ,  Y02E10/723

    摘要： The present invention provides a wind turbine generator and a blade pitch angle control method thereof in which an aerodynamic imbalance of a wind turbine rotor at the time of shutdown is further reduced, the maximum load of a wind turbine is further reduced, and the wind turbine generator can be reduced in weight and cost. The wind turbine generator includes a collective pitch angle controller 11 that produces a collective pitch angle demand that is common to blade pitch angles of wind turbine blades, an individual pitch angle producing unit 13 that produces an individual pitch angle demand inherent in each wind turbine blade, multipliers 21 to 23 that multiply the individual pitch angle demand by the individual pitch angle gain, a gain producing unit 14, and adder 24 to 26 that add collective pitch angle demands to the output of the multipliers 21 to 23 and supply the same to pitch actuators 31 to 33 inherent in the wind turbine blades. When shutdown is performed, the individual pitch angle gain is adjusted such that a individual pitch angle gain is reduced gradually and reaches to zero by the gain producing unit 14 after first set time.