公开(公告)号：US20220060025A1

公开(公告)日：2022-02-24

申请号：US17417097

申请日：2019-11-28

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mads Rajczyk SKJELMOSE ,  Henrik MØLLER

IPC: H02J3/38 ,  H02J3/32 ,  H02J3/46

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.

公开(公告)号：US20240421602A1

公开(公告)日：2024-12-19

申请号：US18718374

申请日：2022-10-31

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan WU ,  Mads Rajczyk SKJELMOSE ,  Kouroush NAYEBI

IPC: H02J3/46 ,  H02J3/00

Abstract: The invention relates to a power plant connected to an electrical grid and a method for controlling the power plant. The power plant comprises one or more power generators and at least one synchronous condenser. The power generators may be wind turbine generators, solar photovoltaic elements or other kinds of renewable power generators. During a deviation in frequency on the electrical grid, the synchronous condenser counteracts the frequency deviation, but it may also unintentional supply active power during the frequency event. The control method is controlling the active power supply from the power generators during the frequency events based only on the active power output from the power generators.

公开(公告)号：US20220307471A1

公开(公告)日：2022-09-29

申请号：US17616116

申请日：2020-05-04

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mads Rajczyk SKJELMOSE ,  Steve JESSEN

IPC: F03D7/02 ,  H02J3/38 ,  H02J3/46 ,  G05B19/042 ,  F03D7/04

Abstract: The invention relates to a method for controlling power generation from a power plant which comprises power generating units such as wind turbine generators. The power generating units are controllable to produce power dependent on individual power set-points. The method comprises steps of obtaining desired target power set-points for one or more prioritized power generating units, determining final target power set-points for the one or more prioritized power generating units based on the target power set-points and an available power adjustment margin of the power plant which is available for adjustment of the power set-points of the one or more prioritized power generating units, and dispatching the final target power set-points to the prioritized power generating units.

公开(公告)号：US20190338756A1

公开(公告)日：2019-11-07

申请号：US16312655

申请日：2017-07-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steve JESSEN ,  Søren KAPPELGAARD ,  Jacob Barsøe KJÆRGAARD ,  Kouroush NAYEBI ,  Mads Rajczyk SKJELMOSE ,  Mu WEI

IPC: F03D7/04 ,  F03D7/02

Abstract: A wind power plant which supplies power to a utility grid in accordance with an active power reference, where the wind power plant comprises a plurality of wind turbine generators and a power plant controller arranged to send an active power set point to the wind turbine controller of each of the plurality of wind turbine generators.

公开(公告)号：US20190162166A1

公开(公告)日：2019-05-30

申请号：US16312541

申请日：2017-07-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Steve JESSEN ,  Søren KAPPELGAARD ,  Jacob Barsøe KJÆRGAARD ,  Kouroush NAYEBI ,  Mads Rajczyk SKJELMOSE ,  Mu WEI

IPC: F03D7/02 ,  F03D7/04 ,  H02J3/38 ,  H02J3/48 ,  H02J13/00

CPC classification number: F03D7/0284 ,  F03D7/028 ,  F03D7/048 ,  F05B2270/335 ,  F05B2270/337 ,  H02J3/386 ,  H02J3/48 ,  H02J13/0006 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/72 ,  Y04S10/123

Abstract: A wind power plant has a plurality of wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators. Each wind turbine generator has a controller arranged to control an active power output in its respective wind turbine generator according to an active power set point received from the wind power plant controller. A change in the active power reference changes the active power set point for each wind turbine generator by a weighting factor.

公开(公告)号：US20220385065A1

公开(公告)日：2022-12-01

申请号：US17787527

申请日：2020-12-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mu WEI ,  Mads Rajczyk SKJELMOSE

IPC: H02J3/00 ,  H02J3/38

Abstract: The invention relates to a method for controlling power generation from a power plant which comprises a plurality of power generating units. The method involves setting a maximal allowed power production for each power generating unit in a selection of one or more power generating units of second priority to a non-zero value, where the maximal allowed power production is determined dependent on whether a first power production gap is greater or less than zero and dependent on a comparison of the first power production gap with a second available power production capability of the selection of the one or more power generating units of the second priority.

公开(公告)号：US20220224118A1

公开(公告)日：2022-07-14

申请号：US17638718

申请日：2020-08-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Mads Rajczyk SKJELMOSE ,  Kouroush NAYEBI ,  Henrik MØLLER

IPC: H02J3/24 ,  H02J3/00 ,  H02J7/00 ,  H02J3/32 ,  H02J7/04

Abstract: The invention relates to a method for controlling a power plant for providing frequency support to a power grid. The power plant comprises an electrical storage unit and a power generating system comprising one or more power generating units including at least one wind turbine generator. The method comprises setting a frequency control period, wherein the electrical storage unit is scheduled to charge or discharge according to a first power set-point and at the start of the frequency control period, charging or discharging the electrical storage unit according to the power set-point. In case of a frequency deviation, a power change of the power from the electrical storage unit is determined based on the frequency deviation. Frequency support is provided by controlling the electrical storage unit to charge or discharge according to a second power set-point determined from the power change.

公开(公告)号：US20210336443A1

公开(公告)日：2021-10-28

申请号：US17278128

申请日：2019-09-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Henrik MØLLER ,  Mads Rajczyk SKJELMOSE

IPC: H02J3/38 ,  H02J3/46

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, there are distributed set points 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.