Methods and systems for generating wind turbine control schedules
First Claim
1. A method of generating a control schedule for a wind turbine, the control schedule specifying a maximum power level of the wind turbine that varies over time, the method comprising:
- determining, based on one or both of measured site data and operating data for the wind turbine, a value indicative of a current remaining fatigue lifetime of the wind turbine or of one or more components of the wind turbine;
applying an optimization function to perform an optimization to determine an optimized control schedule, the optimization comprising;
varying an initial control schedule to produce a varied control schedule, wherein varying the initial control schedule comprises varying a plurality of parameters comprising a target lifetime of the wind turbine and a number of component replacements for the one or more components;
estimating, based on the current remaining fatigue lifetime, a future fatigue lifetime to be consumed by the wind turbine or the one or more components over the duration of the varied control schedule; and
constraining the optimization according to one or more input constraints;
andproviding the optimized control schedule as an input to a wind turbine controller or to a wind power plant controller, wherein the wind turbine controller or the wind power plant controller is configured to generate one or more control signals to control a power output of the wind turbine according to the optimized control schedule,wherein the optimized control schedule reflects a selected combination of the number of component replacements and the target lifetime of the wind turbine, andwherein, for the selected combination, the future fatigue lifetime at least meets the target lifetime.
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Accused Products
Abstract
Aspects described herein include a method of generating a control schedule for a wind turbine. The control schedule specifies a maximum power level that varies over time. The method comprises determining a value indicative of a current remaining fatigue lifetime of the wind turbine or of one or more components. The method further comprises applying an optimization function to perform an optimization to determine an optimized control schedule. The optimization comprises varying a plurality of parameters of an initial control schedule to produce a varied control schedule, estimating a future fatigue lifetime to be consumed by the wind turbine or the one or more components over the duration of the varied control schedule, and constraining the optimization according to one or more input constraints.
7 Citations
31 Claims
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1. A method of generating a control schedule for a wind turbine, the control schedule specifying a maximum power level of the wind turbine that varies over time, the method comprising:
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determining, based on one or both of measured site data and operating data for the wind turbine, a value indicative of a current remaining fatigue lifetime of the wind turbine or of one or more components of the wind turbine; applying an optimization function to perform an optimization to determine an optimized control schedule, the optimization comprising; varying an initial control schedule to produce a varied control schedule, wherein varying the initial control schedule comprises varying a plurality of parameters comprising a target lifetime of the wind turbine and a number of component replacements for the one or more components; estimating, based on the current remaining fatigue lifetime, a future fatigue lifetime to be consumed by the wind turbine or the one or more components over the duration of the varied control schedule; and constraining the optimization according to one or more input constraints; and providing the optimized control schedule as an input to a wind turbine controller or to a wind power plant controller, wherein the wind turbine controller or the wind power plant controller is configured to generate one or more control signals to control a power output of the wind turbine according to the optimized control schedule, wherein the optimized control schedule reflects a selected combination of the number of component replacements and the target lifetime of the wind turbine, and wherein, for the selected combination, the future fatigue lifetime at least meets the target lifetime. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer program product comprising:
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a non-transitory computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code executable by one or more processors to perform an operation for generating a control schedule for a wind turbine, the control schedule specifying a maximum power level of a wind turbine that varies over time, the operation comprising; receiving initial values for a set of variables, the set of variables comprising operating variables of the wind turbine, an initial control schedule, one or more constraints, and data indicative of a current remaining fatigue lifetime of the wind turbine or of one or more components of the wind turbine; optimizing the initial control schedule by minimizing or maximizing an operation parameter that is dependent upon the set of variables, wherein optimizing the initial control schedule comprises varying a plurality of variables of the set of variables from the initial values in accordance with the current remaining fatigue lifetime and the one or more constraints, wherein the plurality of variables comprise a target lifetime of the wind turbine and a number of component replacements for the one or more components; and providing the optimized control schedule as an input to a wind turbine controller or to a wind power plant controller, wherein the wind turbine controller or the wind power plant controller is configured to generate one or more control signals to control a power output of the wind turbine according to the optimized control schedule, wherein the optimized control schedule reflects a selected combination of the number of component replacements and the target lifetime of the wind turbine. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method of generating a control schedule for a wind power plant comprising a plurality of wind turbines, the control schedule indicating, for each wind turbine, how a maximum power level of the wind turbine varies over time, the method comprising:
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determining, based on one or both of measured site data and operating data for the plurality of wind turbines, a value indicative of a current remaining fatigue lifetime of each wind turbine of the plurality of wind turbines or of one or more components of each wind turbine; applying an optimization function to perform an optimization to determine an optimized control schedule, the optimization comprising; varying an initial control schedule to produce a varied control schedule, wherein varying the initial control schedule comprises varying a plurality of parameters for each wind turbine, the plurality of parameters comprising a target lifetime of the wind turbine and a number of component replacements for the one or more components; estimating a future fatigue lifetime to be consumed by the plurality of wind turbines or the one or more components of each wind turbine over the duration of the varied control schedule based on the current remaining fatigue lifetime of each wind turbine, wherein estimating the future fatigue lifetime is performed using a site check program that determines loads acting on the one or more components of each wind turbine based upon;
data obtained from wind power plant sensors, parameters relating to the wind power plant, design of the plurality of wind turbines, and interactions between different turbines of the wind power plant; andconstraining the optimization according to one or more input constraints; and providing the optimized control schedule as an input to a wind power plant controller, wherein the wind power plant controller is configured to generate one or more control signals to control a power output of each of the plurality of wind turbines according to the optimized control schedule, wherein the optimized control schedule reflects a selected combination of the number of component replacements and the target lifetime of the wind turbine, and wherein, for the selected combination, the future fatigue lifetime at least meets the target lifetime. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification