公开(公告)号：US06602044B1

公开(公告)日：2003-08-05

申请号：US09697285

申请日：2000-10-27

申请人： Takao Kuwabara ,  Kei Katayama ,  Hiroto Nakagawa ,  Haruki Hagiwara

发明人： Takao Kuwabara ,  Kei Katayama ,  Hiroto Nakagawa ,  Haruki Hagiwara

IPC分类号： F04D1502

CPC分类号： F03B3/10 ,  F03B15/18 ,  Y02E10/223 ,  Y02E10/226 ,  Y02P70/525

摘要： A pump turbine includes a runner connected to a generator motor, a water discharge controller for adjusting the quantity of water passing through the runner and a governor for detecting a rotational speed of the runner and controlling the water discharge controller to get a predetermined rotational speed of the runner. Upon a load rejection which shuts off the generator motor from an electric power system, the governor is controlled to make a target speed value of the runner after a load rejection higher than a target speed value before the load rejection. The target speed value is a reference speed to be compared with actual speed so that the governor determines when or how to open or close a water discharge controller in response to a balance between the two speeds.

摘要翻译： 泵式涡轮机包括连接到发电机马达的流道，用于调节通过流道的水量的排水控制器和用于检测流道的转速的调速器，并且控制排水控制器以获得预定的转速 跑步者 在将发电机电动机从电力系统关闭的负载抑制下，调速器被控制以在负载抑制高于负载抑制之前的目标速度值之前使转轮的目标速度值成为目标速度值。 目标速度值是与实际速度进行比较的参考速度，以便调速器响应于两个速度之间的平衡来确定何时或如何打开或关闭排水控制器。