Asynchronous conversion method and apparatus for use with variable speed
turbine hydroelectric generation
    3.
    发明授权
    Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation 失效
    用于变速涡轮机水力发电的异步转换方法和装置

    公开(公告)号:US5742515A

    公开(公告)日:1998-04-21

    申请号:US550940

    申请日:1995-10-31

    摘要: A hydroelectric power generation system (20) generates electrical power for an electrical utilization system (72). A controller (42) obtains a requested output electrical power level from a hydro-turbine unit (70) by using a signal indicative of water head (h.sub.meas) to control speed of an asynchronous rotary converter (50) coupled to the hydro-turbine unit and to control gate position of the hydro-turbine unit. The requested output electrical power level is applied from the hydro-turbine unit via the rotary converter to the electrical utilization system. In one embodiment, the controller (42B) accesses an updatable memory wherein Hydraulic Hill Chart information is stored. In another embodiment, the controller (42C) also includes a real-time automatic governor which uses a signal indicative of ac transmission frequency to the electrical utilization system to control the output electrical power level of the rotary converter.

    摘要翻译: 水力发电系统(20)产生电力利用系统(72)的电力。 控制器(42)通过使用表示水头(hmeas)的信号来控制与水轮机单元(70)的耦合的异步旋转转换器(50)的速度从水力涡轮机单元(70)获得请求的输出电功率水平 并控制水轮机单元的门位置。 所要求的输出功率水平从水轮机组通过旋转转换器施加到电气利用系统。 在一个实施例中,控制器(42B)访问存储液压山图信息的可更新存储器。 在另一个实施例中,控制器(42C)还包括实时自动调速器,其使用指示交流传输频率的信号到电力利用系统来控制旋转转换器的输出电功率水平。

    Rotary solar converter
    5.
    发明授权

    公开(公告)号:US10033302B2

    公开(公告)日:2018-07-24

    申请号:US14473557

    申请日:2014-08-29

    摘要: An advantageous method of converting solar energy from a photovoltaic array into alternating current for feeding into the electricity grid is described based on the use of an inventive rotary machine. The inventive rotary machine has a rotor and a set of stator coils which are excited in a first mode by a polyphase current derived from the solar array and simultaneously in a second, orthogonal mode by a polyphase voltage derived from the electricity grid.

    Dual shaft and rotating machine coupling
    8.
    发明授权
    Dual shaft and rotating machine coupling 失效
    双轴和旋转机联轴器

    公开(公告)号:US06837644B2

    公开(公告)日:2005-01-04

    申请号:US10448279

    申请日:2003-05-30

    摘要: A dual shaft and rotating machine coupling has a first rotatable shaft, a second rotatable shaft and a rotating machine rotor coupling. The first rotatable shaft has a first shaft connecting flange radially extending outwardly therefrom. The second rotatable shaft is axially aligned with the first rotatable shaft and has a second shaft connecting flange radially extending outwardly therefrom. The second shaft connecting flange is spaced from the first shaft connecting flange. The rotating machine rotor coupling has a rotor spider and a rotor connecting flange radially extending inwardly from the spider securely sandwiched between and in abutting relation with the first and second shaft connecting flanges.

    摘要翻译: 双轴和旋转机械联轴器具有第一可旋转轴,第二可旋转轴和旋转机械转子联轴器。 第一可旋转轴具有从其向外径向延伸的第一轴连接凸缘。 第二可旋转轴与第一可旋转轴轴向对齐并且具有从其向外径向延伸的第二轴连接凸缘。 第二轴连接凸缘与第一轴连接凸缘间隔开。 旋转机械转子联轴器具有转子齿轮和转子连接凸缘,该转子连接凸缘从第一和第二轴连接凸缘处于与第一和第二轴连接凸缘相对并且与第二和第二轴连接凸缘相对置的位置上从