A METHOD FOR IMPROVED POWER RAMPING IN A HYBRID POWER PLANT

    公开(公告)号:US20230411966A1

    公开(公告)日:2023-12-21

    申请号:US17914704

    申请日:2021-03-05

    CPC classification number: H02J3/46 H02J3/381 H02J2300/28

    Abstract: The invention relates to a method for providing power ramp rate (RR) control of a hybrid power plant (100) with a plurality of energy assets (EA1, EA2, EA3) including wind turbine generators (WTG1, WTG2, WTG3) and possibly solar power units (PV1, PV2, PV3, 102), and an energy storage unit (ESU), Each energy asset has a ramp rate capability (RRC_i) defined as the highest possible ramp rate at a given time, and the method includes receiving from each energy asset the corresponding ramp rate capability, and taking into account the plurality of ramp rate capabilities from the energy assets when calculating the power setpoint (Pset_i) to each energy asset, so as to improve the power ramp rate (RR) control of the hybrid power plant (100).

    A WIND POWER PLANT WITH REDUCED LOSSES

    公开(公告)号:US20170234299A1

    公开(公告)日:2017-08-17

    申请号:US15314558

    申请日:2015-05-19

    Abstract: The present invention relates to a method for controlling a wind power plant, the wind power plant comprising a plurality of wind turbine generators, each wind turbine generator comprising at least one power converter for providing active power and/or reactive power to an electrical grid, wherein the method is determining a required amount of reactive power provided by the plurality of wind turbine generators, and grouping the plurality of wind turbine generators into a first set of wind turbine generators and a second set of wind turbine generators based on a demand for reactive power; and supplying reactive power to the grid (20) from the first set of wind turbine generators and disconnecting the second set of wind turbine generators from the electrical grid (20) in response to a control demand, in order to minimize active power losses. The present invention also relates to a wind power plant arranged to perform the method.

    Controlling a power plant comprising wind turbines during grid frequency deviation

    公开(公告)号:US12166356B2

    公开(公告)日:2024-12-10

    申请号:US18252874

    申请日:2021-10-19

    Abstract: The invention relates to a method for controlling a power plant during an event which requires a change of the power produced by the power plant, wherein the power plant comprises a plurality of power generating units including at least one wind turbine generator, the method comprises determining the power reference dependent on an available power, changing the power reference to a modified power reference by a power variation in response to detecting a first event, memorizing a power level relating to the actual power production at a time occurrence of the first event, setting a maximum power limit to the memorized power level, limiting the modified power reference to the maximum power limit, and controlling the power produced by the wind turbines in accordance with the limited modified power reference.

    Hybrid power plant and a method for controlling a hybrid power plant

    公开(公告)号:US11626739B2

    公开(公告)日:2023-04-11

    申请号:US17417097

    申请日:2019-11-28

    Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, and an energy storage unit, preferably a battery energy storage system. The hybrid power plant has a power plant controller arranged to communicate with the plurality of energy assets, and, when an under-frequency event occurs, the energy storage unit provides frequency support during the under-frequency event by providing additional power as a function of a state of charge of the energy storage unit at the time when the under-frequency event occurs. Thus, during an under-frequency event, it is possible to obtain a more stable power output from the hybrid power plant.

    Method for improved power ramping in a hybrid power plant

    公开(公告)号:US12155220B2

    公开(公告)日:2024-11-26

    申请号:US17914704

    申请日:2021-03-05

    Abstract: The invention relates to a method for providing power ramp rate control of a hybrid power plant with a plurality of energy assets including wind turbine generators and possibly solar power units, and an energy storage unit. Each energy asset has a ramp rate capability defined as the highest possible ramp rate at a given time, and the method includes receiving from each energy asset the corresponding ramp rate capability, and taking into account the ramp rate capabilities from the energy assets when calculating the power setpoint to each energy asset, so as to improve the power ramp rate control of the hybrid power plant.

    Hybrid power plant and a method for controlling a hybrid power plant

    公开(公告)号:US11936188B2

    公开(公告)日:2024-03-19

    申请号:US17278128

    申请日:2019-09-10

    CPC classification number: H02J3/381 H02J3/46 H02J2300/24 H02J2300/28

    Abstract: The invention relates to a hybrid power plant for producing power to the electrical grid, the hybrid power plant comprising a plurality of energy assets; a first renewable power generating unit, such as wind turbine generators, a second renewable power generating unit, such as a plurality of solar power units, and an energy storage unit, such as a battery energy storage system. A power plant controller is arranged to perform a first comparison of an active power reference with an available power from the first and the second renewable power generating units and performing a second comparison of available charging, or discharging, capability of the energy storage unit with said first comparison. In response to this first comparison, set points are distributed to the first and the second renewable power generating units so as to deliver power from the hybrid power plant in accordance with the received active power reference.

    Relating to reactive power support in wind power plants

    公开(公告)号:US11025064B2

    公开(公告)日:2021-06-01

    申请号:US16468251

    申请日:2017-11-24

    Abstract: A wind power plant system comprising: a plurality of wind turbine generators each having a corresponding generator controller, and a power plant controller for controlling the power generated by the wind power plant system; wherein at least some of the plurality of generator controllers are each configured to: generate a model that indicates the thermal capacity of one or more components of the wind turbine generator, determine power capacity data from the model, said data relating to: at least one reactive power supply level and a corresponding time limit for which that reactive power supply level may be maintained, and transmit to the power plant controller the determined power capacity data, wherein the power plant controller is operable to receive the power capacity data from the plurality of generator controllers and to transmit respective power references to the plurality of generator controllers to control the power generated by the wind power plant system.

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