Wind power generation system and operating method thereof

Prime-mover dynamo plants – Electric control – Fluid-current motors

Reexamination Certificate

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C290S055000, C290S007000, C322S025000, C322S027000, C322S028000, C322S037000

Reexamination Certificate

active

07569944

ABSTRACT:
A wind power generation system wherein procedure for controlling the blade pitch is changed in accordance with the rate of decrease in the amplitude of the grid voltage, and when over current occurs in the grid-side power converter, the grid-side power converter is brought into the gate-blocked condition whereas the generator-side power converter continues its operation.

REFERENCES:
patent: 7342323 (2008-03-01), Avagliano et al.
patent: 7417333 (2008-08-01), Miller et al.
patent: 7425771 (2008-09-01), Rivas et al.
patent: 2006-230085 (2006-08-01), None
patent: WO 2004/067958 (2004-08-01), None
U.S. Appl. No 11/769,753, filed Jun. 28, 2007, Masaya Ichinose, et al.
U.S. Appl. 11/751,742, filed May 22, 2007, Masaya Ichinose, et al.
U.S. Appl. 11/954,453, filed Dec. 12, 2007, Masaya Ichinose, et al.

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