Systems and apparatus relating to wind turbine electrical...

Details Systems and apparatus relating to wind turbine electrical... Systems and apparatus relating to wind turbine electrical...

2011-07-12

2011-07-12

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C361S054000, C290S044000

Reexamination Certificate

active

07978445

ABSTRACT:
An electrical system for connecting a wind turbine to a power grid that includes: a frequency converter that converts electric power produced by a generator of the wind turbine into electric power that is synchronized with the electric power of the power grid; a transformer that steps up the voltage for connection to the power grid, the transformer being disposed between the frequency converter and a connection to the power grid; and a grid-side crowbar circuit; wherein the grid-side crowbar circuit is configured to apply a short circuit to the electrical system upon the detection of a fault.

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patent: 6021035 (2000-02-01), Larsen et al.
patent: 6633467 (2003-10-01), Macbeth et al.
patent: 7102247 (2006-09-01), Feddersen
patent: 7394166 (2008-07-01), Teichmann et al.
patent: 7586216 (2009-09-01), Li et al.
patent: 2009/0261589 (2009-10-01), Oohara et al.
patent: 2010/0134935 (2010-06-01), Ritter et al.

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