Method and controller for controlling an electric power production unit, in particular a wind turbine
AssigneeSiemens Aktiengesellschaft
InventorsKaj Skov Nielsen, Henrik Stiesdal
Life of this patent
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Abstract
A method for controlling an electric power production unit, in particular a wind turbine, connected to a utility grid, includes obtaining information regarding an event at a point in time, wherein the event relates to at least one of electric power delivered to the utility grid and electric power extracted from the utility grid at the point in time, and automatically adapting, before the point in time, a power transfer between the power production unit and the utility grid based on the information. Further a corresponding controller and a wind park are described.
Claims12
A method for controlling an electric power production unit connected to a utility grid, the method comprising:
- obtaining information regarding an event at a point in time, wherein the event relates to at least one of electric power delivered to the utility grid and electric power extracted from the utility grid at the point in time;
- in advance of the event, ramping down power production by the electric power production unit from a nominal power level to an adapted power level;
- and
- increasing or decreasing power output of the electric power production unit relative to the adapted power level based upon a decrease or increase in grid frequency, respectively.
Controller for controlling an electric power production unit, in particular a wind turbine, connected to a utility grid, wherein the controller is configured:
- to obtain information regarding an event at a point in time, wherein the event relates to at least one of electric power delivered to the utility grid and electric power extracted from the utility grid at the point in time;
- in advance of the event, ramping down power production by the electric power production unit from a nominal power level to an adapted power level, wherein power production by the electric power production unit may be increased or decreased upon a change in grid frequency;
- and
- increasing or decreasing power output of the electric power production unit relative to the adapted power level based upon a decrease or increase in grid frequency, respectively.
Wind turbine park, comprising:
- at least one wind turbine comprising a converter;
- a controller which is in communication with the convertor of the at least one wind turbine for controlling a power production of the wind turbine, wherein the controller is configured to:
- to obtain information regarding an event at a point in time, wherein the event relates to at least one of electric power delivered from the at least one wind turbine to a utility grid and electric power extracted from the utility grid at the point in time;
- in advance of the event, ramping down power production by the electric power production unit from a nominal power level to an adapted power level, wherein power production by the electric power production unit may be increased or decreased upon a change in grid frequency;
- and
- increasing or decreasing power output of the electric power production unit relative to the adapted power level based upon a decrease or increase in grid frequency, respectively.
Dependencies are inferred from the claim text.