发明名称 |
Pump turbine, method of controlling thereof, and method of stopping thereof |
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.
|
申请公布号 |
US6602044(B1) |
申请公布日期 |
2003.08.05 |
申请号 |
US20000697285 |
申请日期 |
2000.10.27 |
申请人 |
KUWABARA TAKAO;KATAYAMA KEI;NAKAGAWA HIROTO;HAGIWARA HARUKI |
发明人 |
KUWABARA TAKAO;KATAYAMA KEI;NAKAGAWA HIROTO;HAGIWARA HARUKI |
分类号 |
F03B3/10;F03B15/18;(IPC1-7):F04D15/02 |
主分类号 |
F03B3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|