Estimating an upgraded power curve

Patent metadata

Field	Value
Publication number	US-2024254971-A1
Application number	US-202218565986-A
Country	US
Kind code	A1
Filing date	May 25, 2022
Priority date	Jun 9, 2021
Publication date	Aug 1, 2024
Grant date	—

Abstract

A method of estimating a second power curve of a wind turbine regarding a second operational configuration includes: receiving power output data pertaining to a first operational configuration, in particular reference operational configuration; receiving power data relating to power output pertaining to the second operational configuration; deriving the second power curve using the power output data pertaining to the first operational configuration, the power output data pertaining to the second operational configuration and a first power curve of the first operational configuration.

First claim

1 . A method of estimating a second power curve of a wind turbine regarding a second operational configuration, the method comprising:
receiving power output data pertaining to a first operational configuration; receiving power data relating to power output pertaining to the second operational configuration; deriving the second power curve using the power output data pertaining to the first operational configuration, the power output data pertaining to the second operational configuration and a first power curve of the first operational configuration, wherein receiving power data relating to a power output pertaining to the second operational configuration comprises: receiving power data relating to a power output of at least one first wind turbine operated according to the second operational configuration in a first time interval; receiving power output data pertaining to the first operational configuration comprises: receiving power data relating to a power output of at least one second wind turbine operated according to the first operational configuration in the first time interval, the method further comprising: receiving power data relating to a power output of the first wind turbine operated according to the first operational configuration in a second time interval, receiving power data relating to a power output of the second wind turbine operated according to the second operational configuration in the second time interval; wherein deriving the second power curve is based on: the power data relating to a power output of the first wind turbine operated according to the second operational configuration in the first time interval; the power data relating to a power output of the second wind turbine operated according to the first operational configuration in the first time interval, the power data relating to a power output of the first wind turbine operated according to the first operational configuration in the second time interval; the power data relating to a power output of the second wind turbine operated according to the second operational configuration in the second time interval; and the first power curve,
wherein the first wind turbine and the second wind turbine are operated at the same time interval always in different operational configurations,
wherein deriving the second power curve comprises:
deriving a first estimate of the second power curve employing a calculation scheme,
the calculation scheme having as a first input the power data relating to power output of the first wind turbine operated according to the second operational configuration in the first time interval;
the calculation scheme having as a second input the power data relating to power output of the second wind turbine operated according to the first operational configuration in the first time interval,
wherein the calculation scheme further uses the first power curve, to derive the first estimate of the second power curve,
wherein the second power curve is derived further based on the first estimate of the second power curve,

wherein the calculation scheme derives a difference between data supplied to the first input and data supplied to the second input.

2 . The method according to claim 1 , wherein deriving the second power curve further comprises:
deriving a second estimate of the second power curve employing the calculation scheme, the calculation scheme having as the fourth input the power data relating to power output of the second wind turbine operated according to the second operational configuration in the second time interval; the calculation scheme having as the third input the power data relating to power output of the first wind turbine operated according to the first operational configuration in the second time interval, wherein the calculation scheme further uses the first power curve, to derive the second estimate of the second power curve, wherein the second power curve is derived further based on the second estimate of the second power curve.

3 . The method according to claim 2 , wherein deriving the second power curve comprises:
deriving the second power curve as a mean, in particular weighted mean, of the first estimate of the second power curve and the second estimate of the second power curve.

4 . The method according to claim 2 , wherein deriving the second power curve comprises:
deriving a third estimate of the second power curve employing the calculation scheme, the calculation scheme having as the first input the power data relating to power output of the first wind turbine operated according to the first operational configuration in the first time interval; the calculation scheme having as the second input the power data relating to power output of the second wind turbine operated according to the second operational configuration in the first time interval, wherein the calculation scheme further uses the first power curve, to derive the third estimate of the second power curve, wherein the second power curve is derived further based on the third estimate of the second power curve, and/or
wherein deriving the second power curve comprises:
deriving a fourth estimate of the second power curve employing the calculation scheme:
the calculation scheme having as the third input the power data relating to power output of the first wind turbine operated according to the second operational configuration in the second time interval;
the calculation scheme having as the fourth input the power data relating to power output of the second wind turbine operated according to the first operational configuration in the second time interval,
wherein the calculation scheme further uses the first power curve, to derive the fourth estimate of the second power curve,
wherein the second power curve is derived further based on the fourth estimate of the second power curve.

5 . A method according to claim 4 , wherein deriving the second power curve comprises:
deriving the second power curve as a mean, in particular weighted mean, of the first estimate of the second power curve, the second estimate of the second power curve, the third estimate of the second power curve and a fourth estimate derived curve derived from the fourth estimate of the second power curve and the first power curve, the fourth estimate derived curve in particular being obtained by mirroring the fourth estimate at the first power curve.

6 . The method according to claim 1 ,
wherein the first time interval and/or the second time interval ranges between 30 seconds and one minute, or between 1 h and 36 h or between one day and one year, wherein an intermediate time interval between the first time interval and the second time interval ranges between 0.05 h and 0.5 h, and/or wherein at any time when power data are acquired and used for the calculation of the second power curve, the first wind turbine and the second wind turbine are operated in different ones of the first operational configuration and the second operational configuration, and/or wherein the first operational configuration represents a non-upgraded or reference configuration and the second operational configuration represents an upgraded operational configuration.

7 . The method according to claim 1 , further comprising:
receiving power data relating to power output of the first wind turbine operated according to the second operational configuration in plural further first time intervals; receiving power data relating to power output of the second wind turbine operated according to the first operational configuration in the plural further first time intervals, receiving power data relating to power output of the first wind turbine operated according to the first operational c

Assignees

• Siemens Gamesa Renewable Energy Innovation & Technology SL

Inventors

• Fernandez Romero Ignacio
• Meinicke Alexander
• Santos Pablo Desco

Classifications

• G01R21/06

  by measuring current and voltage (G01R21/08 - G01R21/133 take precedence) · CPC title

• F05B2270/335

  Output power or torque · CPC title

• F05B2270/327

  Rotor or generator speeds · CPC title

• F05B2270/32

  Wind speeds · CPC title

• F05B2270/1033

  Power (if explicitly mentioned) · CPC title