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    Method and apparatus for antisurge control of multistage compressors with sidestreams
    1.
    发明授权
    Method and apparatus for antisurge control of multistage compressors with sidestreams 失效
    具有侧流的多级压缩机的防喘振控制方法和装置

    公开(公告)号：US5599161A

    公开(公告)日：1997-02-04

    申请号：US552788

    申请日：1995-11-03

    申请人： Brett W. Batson

    发明人： Brett W. Batson

    IPC分类号： F04D27/02 ,  F01D17/00

    CPC分类号： F04D27/02 ,  F05B2200/221 ,  Y02P30/48

    摘要： Compressors for processes, as used for refrigeration systems applied to ethylene production, are multiple stage machines; furthermore, sidestreams enter/exit between the stages. Since a flow measurement device is not available between stages, and the gas temperature entering most stages is unknown, it is difficult to calculate an accurate value for reduced flow for antisurge control purposes. A new method is described, whereby reduced flow alone is replaced by the product of the reduced flow and the equivalent speed. This allows accurate calculation of the distance of the operating point to the surge line since the inlet temperatures into the separate compression units (except the first) are not necessary. The invention described herein can be applied to multistage compression systems for a variety of processes.

    摘要翻译： 用于制冷系统应用于乙烯生产的过程压缩机是多级机器; 此外，侧线进入/离开阶段之间。 由于在阶段之间不能使用流量测量装置，并且进入大多数阶段的气体温度是未知的，因此难以计算用于防止血流控制目的的减少的流量的准确值。 描述了一种新的方法，其中减少的流量单独由减少的流量和等效速度的乘积代替。 这允许精确地计算工作点到喘振线的距离，因为进入分离的压缩单元（除了第一个）之外的入口温度是不必要的。 本文描述的发明可以应用于用于各种过程的多级压缩系统。

    WIND TURBINE GENERATOR AND METHOD OF ESTIMATING WIND DIRECTION IN WIND TURBINE GENERATOR
    2.
    发明申请
    WIND TURBINE GENERATOR AND METHOD OF ESTIMATING WIND DIRECTION IN WIND TURBINE GENERATOR 有权
    风力涡轮机发电机及风力发电机风速估算方法

    公开(公告)号：US20110101691A1

    公开(公告)日：2011-05-05

    申请号：US12999333

    申请日：2009-11-10

    申请人： Masayuki Hashimoto ,  Tsuyoshi Wakasa ,  Takatoshi Matsushita

    发明人： Masayuki Hashimoto ,  Tsuyoshi Wakasa ,  Takatoshi Matsushita

    IPC分类号： H02P9/04

    CPC分类号： F03D7/0204 ,  F03D7/042 ,  F05B2200/221 ,  F05B2260/821 ,  F05B2270/321 ,  F05B2270/335 ,  Y02E10/723

    摘要： Yaw control is performed such that a nacelle faces into an actual main wind direction. The actual wind direction is estimated by detecting the main wind direction with an anemoscope (wind direction detecting means), assuming the actual wind direction by assuming a wind direction offset value, which is a deviation between the main wind direction and the actual wind direction, which is a direction of wind which blows in actual use, at a predetermined wind speed with a wind direction assuming unit (wind direction assuming means), calculating an average generator output power for a predetermined period of time in the assumed actual wind direction with an average-generator-output-power calculation unit (average-generator-output-power calculation means), approximating the average generator output power with respect to the assumed wind direction offset value to a quadratic curve with an actual wind direction estimation unit (actual wind direction estimation means), and estimating the wind direction offset value at the time when the average generator output power is the maximum in the approximated quadratic curve to be an actual offset value.

    摘要翻译： 执行偏航控制，使得机舱面向实际的主风向。 通过利用风向仪（风向检测装置）检测主风向来估计实际风向，假设通过假设主风向和实际风向之间的偏差的风向偏移值来确定实际风向， 以风向假定单元（风向假定单元）为预定风速的实际使用中的风向，以假定的实际风向计算预定时间段内的平均发电机输出功率， 平均发电机输出功率计算单元（平均发电机输出功率计算单元），将实际的风向估计单元（实际风力）近似相对于假设的风向偏移值的平均发电机输出功率与二次曲线 方向估计装置），以及估计平均发电机输出功率最大时的风向偏移值 在近似二次曲线中作为实际的偏移值。

    Wind turbine generator and method of estimating wind direction in wind turbine generator
    6.
    发明授权
    Wind turbine generator and method of estimating wind direction in wind turbine generator 有权
    风力发电机风力发电机风量估算方法

    公开(公告)号：US08476780B2

    公开(公告)日：2013-07-02

    申请号：US12999333

    申请日：2009-11-10

    申请人： Masayuki Hashimoto ,  Tsuyoshi Wakasa ,  Takatoshi Matsushita

    发明人： Masayuki Hashimoto ,  Tsuyoshi Wakasa ,  Takatoshi Matsushita

    IPC分类号： F03D9/00 ,  H02P9/04 ,  F03B13/00 ,  F03B13/10

    CPC分类号： F03D7/0204 ,  F03D7/042 ,  F05B2200/221 ,  F05B2260/821 ,  F05B2270/321 ,  F05B2270/335 ,  Y02E10/723

    摘要： Yaw control is performed such that a nacelle faces into an actual main wind direction. The actual wind direction is estimated by detecting the main wind direction with an anemoscope (wind direction detecting means), assuming the actual wind direction by assuming a wind direction offset value, which is a deviation between the main wind direction and the actual wind direction, which is a direction of wind which blows in actual use, at a predetermined wind speed with a wind direction assuming unit (wind direction assuming means), calculating an average generator output power for a predetermined period of time in the assumed actual wind direction with an average-generator-output-power calculation unit (average-generator-output-power calculation means), approximating the average generator output power with respect to the assumed wind direction offset value to a quadratic curve with an actual wind direction estimation unit (actual wind direction estimation means), and estimating the wind direction offset value at the time when the average generator output power is the maximum in the approximated quadratic curve to be an actual offset value.

    摘要翻译： 执行偏航控制，使得机舱面向实际的主风向。 通过利用风向仪（风向检测装置）检测主风向来估计实际风向，假设通过假设主风向和实际风向之间的偏差的风向偏移值来确定实际风向， 以风向假定单元（风向假定单元）为预定风速的实际使用中的风向，以假定的实际风向计算预定时间段内的平均发电机输出功率， 平均发电机输出功率计算单元（平均发电机输出功率计算单元），将实际的风向估计单元（实际风力）近似相对于假设的风向偏移值的平均发电机输出功率与二次曲线 方向估计装置），以及估计平均发电机输出功率最大时的风向偏移值 在近似二次曲线中作为实际的偏移值。