System and method for operating a wind farm during low wind speeds

    公开(公告)号:US10767630B1

    公开(公告)日:2020-09-08

    申请号:US16423599

    申请日:2019-05-28

    摘要: A method for operating a wind farm connected to a power grid that demands a reactive power requirement that varies with active power includes monitoring a wind speed at each of the plurality of wind turbines in the wind farm. When the wind speed is within a cut-in wind speed range, the method includes determining a reactive power margin of the wind farm based on the reactive power requirement at an active power output corresponding to the wind speed and a reactive power availability of each of the plurality of wind turbines at the wind speed. The method also includes determining a lowest possible cut-in rotor speed for each of the plurality of wind turbines that satisfies the reactive power margin. Further, the method includes commanding each of the plurality of wind turbines to cut-in and begin to produce power at the lowest possible cut-in rotor speed that satisfies the reactive power margin.

    Method for operating a wind farm
    3.
    发明授权
    Method for operating a wind farm 有权
    运行风电场的方法

    公开(公告)号:US09453497B2

    公开(公告)日:2016-09-27

    申请号:US14218137

    申请日:2014-03-18

    摘要: The method includes: dividing the wind farm into a first group of wind turbines to be operated in a non-curtailed mode and a second group of wind turbines to be operated in a curtailed mode for providing a power reserve for the wind farm; determining an actual power production of the first group of wind turbines; estimating a possible maximum power production of the second group at a given environmental condition; estimating a possible maximum power output of the wind farm using the actual power production of the first group and the possible maximum power production of the second group; estimating the power reserve using the possible maximum power output; and updating a power setpoint for at least one wind turbine of the second group so that an expected power production of the second group of wind turbines substantially matches a difference between the possible maximum power production and the power reserve Furthermore, a wind farm is provided.

    摘要翻译: 该方法包括:将风力发电场划分为第一组风力涡轮机,以非限制模式运行,第二组风力涡轮机以缩减模式运行,以提供风力发电场的动力储备; 确定第一组风力涡轮机的实际发电量; 估计在给定环境条件下第二组的可能的最大功率产生; 使用第一组的实际功率产生和第二组的可能的最大功率产生来估计风电场的可能的最大功率输出; 使用可能的最大功率输出估计功率储备; 以及更新所述第二组的至少一个风力涡轮机的功率设定点,使得所述第二组风力涡轮机的预期功率产生量基本上与所述可能的最大功率产量和所述功率储备之间的差异相匹配。此外,提供风电场。

    METHOD FOR OPERATING A WIND FARM AND WIND FARM
    4.
    发明申请
    METHOD FOR OPERATING A WIND FARM AND WIND FARM 有权
    风力农业和风力农业操作方法

    公开(公告)号:US20150267683A1

    公开(公告)日:2015-09-24

    申请号:US14218137

    申请日:2014-03-18

    IPC分类号: F03D7/00 F03D9/00

    摘要: The method includes: dividing the wind farm into a first group of wind turbines to be operated in a non-curtailed mode and a second group of wind turbines to be operated in a curtailed mode for providing a power reserve for the wind farm; determining an actual power production of the first group of wind turbines; estimating a possible maximum power production of the second group at a given environmental condition; estimating a possible maximum power output of the wind farm using the actual power production of the first group and the possible maximum power production of the second group; estimating the power reserve using the possible maximum power output; and updating a power setpoint for at least one wind turbine of the second group so that an expected power production of the second group of wind turbines substantially matches a difference between the possible maximum power production and the power reserve Furthermore, a wind farm is provided.

    摘要翻译: 该方法包括:将风力发电场划分为第一组风力涡轮机,以非限制模式运行,第二组风力涡轮机以缩减模式运行,以提供风力发电场的动力储备; 确定第一组风力涡轮机的实际发电量; 估计在给定环境条件下第二组的可能的最大功率产生; 使用第一组的实际功率产生和第二组的可能的最大功率产生来估计风电场的可能的最大功率输出; 使用可能的最大功率输出估计功率储备; 以及更新所述第二组的至少一个风力涡轮机的功率设定点,使得所述第二组风力涡轮机的预期功率产生量基本上与所述可能的最大功率产量和所述功率储备之间的差异相匹配。此外,提供风电场。

    SYSTEM AND METHOD FOR CONTROLLING A WIND FARM

    公开(公告)号:US20210148332A1

    公开(公告)日:2021-05-20

    申请号:US16684771

    申请日:2019-11-15

    IPC分类号: F03D7/02 F03D9/25 H02J3/38

    摘要: A system and method are provided for controlling a wind farm. Accordingly, a demand signal is received from the electrical grid. The farm-level controller also receives a plurality of capability metrics from each wind turbines, which include, at least, a steady-state power availability, a transient power availability and a responsive capability of each wind turbine. The farm-level controller determines a power production capability profile for each wind turbine and determines the availability of each wind turbine to meet at least a portion of the demand signal based on the power production capability profiles. The farm-level controller also determines which portion of the demand signal to be satisfied by each wind turbine based on the availability and the power production capability for each wind turbine.

    System and Method for Controlling a Hybrid Energy Facility Having Multiple Power Sources

    公开(公告)号:US20200271098A1

    公开(公告)日:2020-08-27

    申请号:US16287065

    申请日:2019-02-27

    IPC分类号: F03D9/25 H02J3/38 H02J3/16

    摘要: A method for automatically controlling a renewable energy facility having a plurality of power sources includes operating, via a farm-level controller, the hybrid renewable energy facility at a first farm-level power set point. The method also includes modifying, via the farm-level controller, the first power set point to a second farm-level power set point. In response to modifying the first power set point to the second farm-level power set point, the method includes generating one or more power change requests for individual controllers of the plurality of power sources. Further, the method includes generating a power output via the plurality of power sources so as to transfer power generation from one of the plurality of power sources to another while minimizing the impact on farm-level production.

    Systems and methods for dynamic management of wind turbines providing reactive power

    公开(公告)号:US10804707B2

    公开(公告)日:2020-10-13

    申请号:US16163854

    申请日:2018-10-18

    摘要: Systems and methods for controlling wind turbines providing reactive power are provided. In particular, a method for controlling a power system that includes a controller and one or more wind turbines electrically connected to a power grid through a point of interconnection can be provided. The method can include receiving signals from a sensor associated with the wind turbines. The method can also include determining wind turbines that are operating in low wind or no wind operating conditions based, at least in part, on the one or more of the sensor signals. The method can also include determining a reactive power capability of the wind turbines operating in low wind or no wind conditions and generating control signals based, at least in part, on the reactive power capability of the wind turbines. The method can also include controlling an operational state of the wind turbines based on the control signals.

    Method for operating a wind farm and wind farm

    公开(公告)号:US09822766B2

    公开(公告)日:2017-11-21

    申请号:US14170678

    申请日:2014-02-03

    摘要: A method for operating a wind farm is provided. The wind farm includes at least two groups of wind turbines, each of the at least two groups of wind turbines includes at least one wind turbine of the wind farm, each of the wind turbines of the wind farm belonging to one of the at least two groups of wind turbines. The method includes determining a power setpoint for the wind farm, determining a group curtailment setpoint for each of at least two groups of wind turbines, determining a power production value of each of the at least two groups of wind turbines, determining for each of the at least two groups of wind turbines a power reference value using the respective group curtailment setpoint and the respective power production value, determine for each of the at least two groups of wind turbines a group power setpoint which is proportional to the respective power reference values, and operating the at least two groups of wind turbines in accordance with the respective group power setpoint. Furthermore, a wind farm is provided.