Systems and apparatus relating to wind turbine electrical control and operation
AssigneeGeneral Electric Company
InventorAllen M. Ritter
Life of this patent
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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.
Claims20
An electrical system for connecting a wind turbine to a power grid, the electrical system comprising:
- 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.
An electrical system comprising:
- a generator that is driven by a wind turbine;
- a frequency converter that converts electric power produced by the 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;
- a grid-side crowbar circuit that is disposed between the frequency converter and the connection to the power grid;
- and
- a transformer circuit-interrupting device disposed between the transformer and the connection to the power grid;
- wherein the grid-side crowbar circuit is configured to apply a short circuit to the electrical system upon the detection of a fault.
Dependencies are inferred from the claim text.