Fluid reaction surfaces (i.e. – impellers) – Method of operation
Reexamination Certificate
2006-10-17
2006-10-17
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Method of operation
C416S041000
Reexamination Certificate
active
07121795
ABSTRACT:
A method for reducing at least one of loads, deflections of rotor blades, or peak rotational speed of a wind turbine includes storing recent historical pitch related data, wind related data, or both. The stored recent historical data is analyzed to determine at least one of whether rapid pitching is occurring or whether wind speed decreases are occurring. A minimum pitch, a pitch rate limit, or both are imposed on pitch angle controls of the rotor blades conditioned upon results of the analysis.
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Moroz Emilian Mieczyslaw
Pierce Kirk Gee
Armstrong Teasdale LLP
Edgar Richard A.
General Electric Company
Look Edward K.
McGinness, Esq. James E.
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