Variable frequency wind plant

Details Variable frequency wind plant Variable frequency wind plant

2011-05-10

2011-05-10

Fureman, Jared J (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural generators

C290S044000

Reexamination Certificate

active

07939970

ABSTRACT:
A method and system for reducing the cost of a combined offshore wind generation plant is provided by coupling the AC output of plural wind turbine generators to a single AC-DC converter prior to transmission of the DC power to an onshore DC-AC inverter site. The wind speed is monitored at selected locations within the wind plant, optionally, at selected turbine generators, and the operating frequency of the AC-DC converter is adjusted in accordance with a combine wind speed signal to permit operation of the plural wind turbines as a group. AC-DC followed by DC-AC conversions decouples the AC frequency produced by the wind turbines and allows the turbines to operate at variable frequency as a group.

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patent: 6680856 (2004-01-01), Schreiber
patent: 6858953 (2005-02-01), Stahlkopf
patent: 2003/0185665 (2003-10-01), Hansen
patent: 2006/0273595 (2006-12-01), Avagliano et al.
patent: 2008/0137382 (2008-06-01), Datta et al.
patent: 2010/0078940 (2010-04-01), Kondo et al.

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