发明名称 |
VINDTURBINSYSTEM FOER ALSTRING AV ELEKTRISKT ENERGI. |
摘要 |
An accelerometer (1) disposed on the support tower (12) of a wind turbine electric generating system in the vicinity of the rotor (10, 16) thereof provides a signal (1) indicative of acceleration of the tower in the direction of the rotor rotational axis. The signal (2) is passed through a band-pass filter (4) for summation (9) with a torque/power controlled (100) blade pitch angle reference rate signal (98), the integral (104) of which provides a blade pitch angle reference signal (40) to control the pitch angle of the rotor blades (10) through a pitch change mechanism (38), thereby to provide additional, positive aerodynamic damping to the tower while modulating blade angle for constant torque/power in response to wind turbulence. |
申请公布号 |
FI77091(B) |
申请公布日期 |
1988.09.30 |
申请号 |
FI19830001030 |
申请日期 |
1983.03.25 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
KOS, JOSEPH MICHAEL;PATRICK, JOHN PETER;HARNER, KERMIT IVAN |
分类号 |
F03D7/04;F03D7/02;F03D13/20 |
主分类号 |
F03D7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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