| 摘要 |
A wind-power plant in which the variable input speed of a variable wind turbine is converted to a substantially constant output speed of an electric generator comprises a speed holding system arranged between the output shaft (2) of the wind turbine (1) and the input shaft of the generator (26). This speed holding system includes at least one speed variator (20) connected to a signal processing device (25). The variator (20) is connected, via a variator shaft (21), to a first gear (22) of a planet gear arrangement. The first gear (22) meshes with a second gear (13) which is fixedly connected to a gear ring (11). This gear ring (11) is fixedly connected to the output shaft (2) of the turbine (1), the arrangement being such that in the event of a change in wind speed, the rotational speed of the generator input shaft is maintained constant as the blade-pitch is changed in response to said change in wind speed. |
