-
公开(公告)号：US20170051723A1
公开(公告)日：2017-02-23
申请号：US15118795
申请日：2015-01-27
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg KJÆR , Lars Finn Sloth LARSEN
CPC classification number: F03D7/0284 , F03D7/0224 , F03D7/048 , F03D9/257 , F05B2270/1033 , F05B2270/328 , F05B2270/337 , G05B15/02 , G05B2219/2619 , Y02E10/723 , Y02E10/725 , Y02E10/726
Abstract: The present invention relates to a method for operating a wind power plant in a wake situation, said wind power plant being connected to a power grid, the method comprising the steps of operating the wind power plant in a predetermined power mode of operation, terminating said predetermined power mode of operation, and increasing power generation of the wind power plant to a power level that exceeds an optimized wake power level of the wind power plant, and injecting the increased amount of power into the power grid as a power boost. Thus, the present invention is capable of generating a power boost to an associated power grid, said power boost exceeding the power level normally being available in a wake situation. The present invention further relates to a system for carrying out the method.
Abstract translation: 本发明涉及一种用于在尾流情况下操作风力发电设备的方法，所述风力发电设备连接到电网，所述方法包括以预定功率运行模式操作风力发电设备的步骤，将所述风力发电设备停止所述 预定功率运行模式，并且将风力发电厂的发电量增加到超过风力发电厂的优化尾流功率水平的功率水平，以及将增加的功率量作为功率提升注入到电网中。 因此，本发明能够产生对相关电网的功率提升，所述功率提升超过通常在唤醒情况下可用的功率水平。 本发明还涉及一种用于执行该方法的系统。
-
公开(公告)号：US20170314533A1
公开(公告)日：2017-11-02
申请号：US15528441
申请日：2015-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin ATZLER , Thomas SCHEEL , Lars Finn Sloth LARSEN , Thomas KRÜGER
IPC: F03D7/02 , G05B19/402 , F03D17/00 , G01P5/00
CPC classification number: F03D7/0224 , F03D7/022 , F03D7/0276 , F03D7/046 , F03D17/00 , F05B2270/304 , F05B2270/32 , F05B2270/327 , F05B2270/328 , F05B2270/708 , G01P5/00 , G05B19/402 , G05B2219/2619 , Y02E10/723
Abstract: A method for iteratively estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A minimum tip speed ratio, λmin, is derived, based on an obtained pitch angle, θ. The minimum tip speed ratio, λmin, defines a limit between a stable and an unstable control region. An initial tip speed ratio, λinit>λmin, is selected, and an initial estimated wind speed, vinit, is derived based on the initial tip speed ratio, λint, and an obtained rotational speed, ω, of the rotor. An estimated wind speed, vest, is iteratively derived, based on the obtained rotational speed, ω, and the obtained pitch angle, ω, and using the derived initial estimated wind speed, vinit, as a starting point. The iterative process converges fast and reliably.
-
3.发明申请公开(公告)号：US20170321660A1
公开(公告)日：2017-11-09
申请号：US15528450
申请日：2015-11-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin ATZLER , Thomas SCHEEL , Lars Finn Sloth LARSEN
Abstract: A method for estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A blade torsion contribution, representing torsion introduced in the wind turbine blades, is derived, based on an obtained rotational speed, ω, of the rotor, and an obtaining a pitch angle, θ, of the wind turbine blades. An adjusted pitch angle, θ′, is calculated as a sum of the obtained pitch angle, θ, and the derived blade torsion contribution, and a wind speed, vest, is estimated, based on the obtained rotational speed, ω, and the calculated adjusted pitch angle, θ′. An accurate and reliable estimate for the wind speed is thereby obtained. The wind turbine may be controlled in accordance with the estimated wind speed, vest.
-
-
Search Results
3
records
(took 0.013 seconds)
