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US 7,276,807 B2Granted
Wind turbine dump load system and method
AssigneeGeneral Electric Company
InventorsHenning Luetze, Thomas Edenfeld, Peter Gauchel
Life of this patent
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Abstract
A wind turbine braking system including: a wind turbine including turbine blades and a control system; a generator coupled to the turbine blades; a generator converter coupled to the generator and connectable to a utility power grid; at least one dump resistor coupled to the generator and generator converter, and if the utility power grid losses power, the dump resistor applying an electrical load to the generator converter.
Claims20
A wind turbine system comprising:
- a wind turbine including turbine blades and a control system;
- a generator coupled to the turbine blades;
- a generator converter coupled to the generator and connectable to a utility power grid;
- at least one dump resistor coupled to the generator and generator converter, and
- if the utility power grid losses power, the dump resistor applies an electrical load to the generator converter.
2 more elements
A wind turbine energy dissipation system comprising:
- a connector adapted to couple a wind turbine generator and a generator converter;
- a dump load resistor coupled to the connector, and
- a grid loss detector configured to command the connector to couple the dump load resistor to the generator in the event of a grid loss.
A method for a wind turbine coupled to a utility power grid, the method comprising:
- applying a dump load resistor to the wind turbine upon loss of power from the utility power grid;
- sensing a grid loss condition, and
- upon sensing the gird loss condition, dissipating power from rotational inertia of the wind turbine to the dump resistor via a generator and a generator converter.
Dependencies are inferred from the claim text.