IP Library › Granted Patent US 10,598,157
Granted Patent B2
US 10,598,157 · App. 15/426,524 · Granted Mar 24, 2020

Reducing curtailment of wind power generation

Inventors: Varun Badrinath Krishna (Urbana, IL); Younghun Kim (White Plains, NY); Tarun Kumar (Mohegan Lake, NY); Wander S. Wadman (New York, NY); Kevin W. Warren (Hopewell Junction, NY)
Assignee: International Business Machines Corporation
F03D17/00F03D7/028F03D7/046G06N3/04G06N3/084G06N10/00F05B2260/821F05B2260/84F05B2270/32F05B2270/335Y02A30/12Y02E10/723
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Quick Facts
Patent No.
US 10,598,157
App. No.
15/426,524
Granted
Mar 24, 2020
Kind
B2
Abstract

Historical electrical power output measurements of a wind turbine for a time period immediately preceding a specified past time are received. Historical wind speed micro-forecasts for the geographic location of the wind turbine, for a time period immediately preceding the specified past time and for a time period immediately following the specified past time are received. Based on the historical electrical power output measurements and the historical wind speed micro-forecasts, a trained machine learning model for predicting wind power output of the wind turbine is generated. Real-time electrical power output measurements of the wind turbine and real-time wind speed micro-forecasts for the geographic location of the wind turbine are received. Using the trained machine learning model with the real-time electrical power output measurements of the wind turbine and the real-time wind speed micro-forecasts, a wind power output forecast for the wind turbine at a future time is outputted.

Claims (49)

1. A method comprising:

receiving, by a computer, historical electrical power output measurements of a wind turbine for a time period immediately preceding a specified past time;

receiving, by the computer, historical wind speed micro-forecasts for the geographic location of the wind turbine, for a time period immediately preceding the specified past time and for a time period immediately following the specified past time;

generating, by the computer, based on the historical electrical power output measurements and the historical wind speed micro-forecasts, a trained machine learning model for predicting wind power output of the wind turbine;

receiving real-time electrical power output measurements of the wind turbine and real-time wind speed micro-forecasts for the geographic location of the wind turbine; and

outputting, by the computer, using the trained machine learning model with the real-time electrical power output measurements of the wind turbine and the real-time wind speed micro-forecasts, a wind power output forecast for the wind turbine at a future time;

determining, by the computer, that an oversupply of wind power would be generated, based in part on the predicted wind power output of the wind turbine; and

curtailing, by the computer, wind power output of the wind turbine.

2. The method of claim 1 ,

wherein the historical electrical power output measurements of the wind turbine for a time period immediately preceding a specified past time comprise a predefined number of measurements at equal time intervals, ending at the specified past time, and

wherein the historical wind speed micro-forecasts for the geographic location of the wind turbine for a time period immediately preceding the specified past time and for a time period immediately following the specified past time comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the specified past time, and a predefined number of wind speed micro-forecasts at equal time intervals beginning with the specified past time, respectively.

3. The method of claim 1 ,

wherein the real-time electrical power output measurements of the wind turbine comprise a predefined number of measurements at equal time intervals, ending at the current time, and

wherein the real-time wind speed micro-forecasts for the geographic location of the wind turbine comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the current time, and a predefined number of wind speed micro-forecasts at equal time intervals, beginning with the current time.

4. The method of claim 1 , wherein the trained machine learning model is one of: a regression neural network, a support vector regression (SVR) model, or a linear regression model.

5. The method of claim 1 , wherein the wind power output forecast of the wind turbine for a future time is a short-term forecast, corresponding to a time 0 to 6 hours in the future.

6. A method comprising:

receiving, by a computer, historical wind speed measurements at a wind turbine for a time period immediately preceding a specified past time;

receiving, by the computer, historical wind speed micro-forecasts for a geographic location of the wind turbine, for a time period immediately preceding the specified past time and for a time period immediately following the specified past time;

generating, by the computer, based on the historical wind speed measurements and the historical wind speed micro-forecasts, a trained machine learning model for predicting wind power output of the wind turbine;

receiving real-time wind speed measurements at the wind turbine and real-time wind speed micro-forecasts for the geographic location of the wind turbine;

outputting, by the computer, using the trained machine learning model with the real-time wind speed measurements at the wind turbine and the real-time wind speed micro-forecasts, a wind power output forecast of the wind turbine for a future time;

determining, by the computer, that an oversupply of wind power would be generated, based in part on the predicted wind power output of the wind turbine; and

curtailing, by the computer, wind power output of the wind turbine.

7. The method of claim 6 ,

wherein the historical wind speed measurements at a wind turbine for a time period immediately preceding a specified past time comprise a predefined number of measurements at equal time intervals, ending at the specified past time, at hub height of the wind turbine, and

wherein the historical wind speed micro-forecasts for the geographic location of the wind turbine for a time period immediately preceding the specified past time and for a time period immediately following the specified past time comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the specified past time, and a predefined number of wind speed micro-forecasts at equal time intervals, beginning with the specified past time, respectively.

8. The method of claim 6 ,

wherein the real-time wind speed measurements at the wind turbine comprise a predefined number of measurements at equal time intervals, ending at the current time, at hub height of the wind turbine, and

wherein the real-time wind speed micro-forecasts for the geographic location of the wind turbine comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the current time, and a predefined number of wind speed micro-forecasts at equal time intervals, beginning with the current time.

9. The method of claim 6 , wherein the machine learning model is one of: a regression neural network, a support vector regression (SVR) model, or a linear regression model.

10. The method of claim 6 , wherein the wind power output forecast of the wind turbine for a future time is a short-term forecast, corresponding to a time 0 to 6 hours in the future.

11. A system comprising:

a wind turbine;

a meter for measuring power output of the wind turbine;

a computer, a computer-readable storage medium, and program instructions stored on the computer-readable storage medium, which when executed cause the computer to perform a method comprising:

receiving, by the computer, historical electrical power output measurements of the wind turbine, measured by the meter, for a time period immediately preceding the specified past time;

receiving, by the computer, historical wind speed micro-forecasts for the geographic location of the wind turbine for a time period immediately preceding a specified past time and for a time period immediately following the specified past time;

generating, by the computer, based on the historical wind speed micro-forecasts and the historical electrical power output measurements, a trained machine learning model for predicting wind power output of the wind turbine;

receiving, by the computer, real-time electrical power output measurements of the wind turbine, measured by the meter, and real-time wind speed micro-forecasts for the geographic location of the wind turbine;

using the machine learning model with the real-time electrical power output measurements and the real-time wind speed micro-forecasts to predict wind power output of the wind turbine at a future time;

determining, by the computer, that an oversupply of wind power would be generated, based in part on the predicted wind power output of the wind turbine; and

curtailing, by the computer, wind power output of the wind turbine.

12. The system of claim 11 ,

wherein the historical electrical power output measurements of the wind turbine for a time period immediately preceding a specified past time comprise a predefined number of measurements at equal time intervals, ending at the specified past time, and

wherein the historical wind speed micro-forecasts for the geographic location of the wind turbine for a time period immediately preceding the specified past time and for a time period immediately following the specified past time comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the specified past time, and a predefined number of wind speed micro-forecasts at equal time intervals, beginning with the specified past time, respectively.

13. The system of claim 11 ,

wherein the real-time electrical power output measurements of the wind turbine comprise a predefined number of measurements at equal time intervals, ending at the current time, and

wherein the real-time wind speed micro-forecasts for the geographic location of the wind turbine comprise a predefined number of wind speed micro-forecasts at equal time intervals, ending at the current time, and a predefined number of wind speed micro-forecasts at equal time intervals, beginning with the current time.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 7, 2017
From: BADRINATH KRISHNA, VARUN; KIM, YOUNGHUN; KUMAR, TARUN; WADMAN, WANDER S.; WARREN, KEVIN W.
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 041194/0394 →
Continuity (1)
Related Publication 20180223812A1 · Aug 9, 2018