Frequency-responsive wind turbine output control
AssigneeSiemens Aktiengesellschaft
InventorRobert J. Nelson
Life of this patent
Estimating the term…
Abstract
A wind farm (10) may include a plurality of variable speed wind turbines (12, 14, 16). A centralized controller (50) may be configured to selectively adjust a respective electrical output power from each of the wind turbines. The controller may include a monitor (52) configured to monitor a correlation between a deviation from a grid frequency and a wind power change. The controller may be configured to adjust a response of the electrical output power based on the monitored correlation. The electrical output power response may be configured to meet a grid frequency regulation notwithstanding of random occurrences of wind power changes.
Claims26
A wind farm comprising:
- a plurality of variable speed wind turbines;
- and
- a centralized controller configured to selectively adjust a respective electrical output power from each of the wind turbines, wherein the controller includes a monitor configured to monitor over one or more periods of time a directional correlation between values corresponding to a deviation from a grid frequency and a wind power change, the controller configured to adjust a response of the electrical output power over the one or more periods of time for at least one of the wind turbines based on the monitored correlation between the values corresponding to the grid frequency deviation and the wind power change, the response of the electrical output power configured to meet a grid frequency regulation notwithstanding of random occurrences of wind power changes.
A variable speed wind turbine comprising:
- a controller configured to adjust an electrical output power from the wind turbine, wherein the controller includes a monitor configured to monitor over one or more periods of time a directional correlation between values corresponding to a deviation from a grid frequency and a wind power change, the controller configured to adjust a response of the electrical output power over the one or more periods of time based on the monitored directional correlation between the values corresponding to the deviation from the grid frequency and the wind power change, the response of the electrical output power configured to meet a grid frequency regulation notwithstanding of random occurrences of wind power changes.
A method for controlling a variable speed wind turbine comprising:
- adjusting an electrical output power from the wind turbine;
- monitoring over one or more periods of time a directional correlation between values corresponding to a deviation from a grid frequency and a wind power change;
- and
- adjusting a response of the electrical output power over the one or more periods of time based on the monitored directional correlation between the values corresponding to the deviation from the grid frequency and the wind power change, wherein the response of the electrical output power is configured to meet a grid frequency regulation notwithstanding of random occurrences of wind power changes.
Dependencies are inferred from the claim text.