Rotating variable frequency transformer with high voltage cables
    1.
    发明授权
    Rotating variable frequency transformer with high voltage cables 失效
    用高压电缆旋转变频变压器

    公开(公告)号:US06456021B1

    公开(公告)日:2002-09-24

    申请号:US09824904

    申请日:2001-04-04

    IPC分类号: H02P520

    摘要: A system for transferring power between a first electrical system and a second electrical system comprises a rotary transformer (105) comprising a rotor (110) having rotor windings and a stator (112) having stator windings. The windings of at least one of the rotor and the stator are high power cables utilized to obviate employment of a transformer between the one of the rotor and the stator and one of the first electrical system and the second electrical system.

    摘要翻译: 用于在第一电气系统和第二电气系统之间传递电力的系统包括旋转变压器(105),其包括具有转子绕组的转子(110)和具有定子绕组的定子(112)。 转子和定子中的至少一个的绕组是用于避免在转子和定子之一以及第一电气系统和第二电气系统中的一个之间使用变压器的大功率电缆。

    Asynchronous conversion method and apparatus for use with variable speed
turbine hydroelectric generation
    2.
    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。