公开(公告)号：US20240014663A1

公开(公告)日：2024-01-11

申请号：US18252874

申请日：2021-10-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan WU ,  Rubin PANNI ,  Henrik MØLLER

IPC: H02J3/38 ,  F03D7/02 ,  F03D7/04 ,  H02J3/24

CPC classification number: H02J3/381 ,  F03D7/0284 ,  F03D7/048 ,  H02J3/241 ,  F05B2270/1033 ,  F05B2270/107 ,  F05B2270/337 ,  H02J2300/24 ,  H02J2300/28 ,  H02J2300/40

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.

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：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.

公开(公告)号：US20200076193A1

公开(公告)日：2020-03-05

申请号：US16468251

申请日：2017-11-24

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ciprian BIRIS ,  Manoj GUPTA ,  Henrik MØLLER ,  Kouroush NAYEBI ,  Janakiraman SIVASANKARAN ,  Mu WEI ,  Hans Kristian BJØRN

IPC: H02J3/18 ,  H02J3/38 ,  F03D9/25

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.

公开(公告)号：US20170321655A1

公开(公告)日：2017-11-09

申请号：US15528421

申请日：2015-11-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Henrik MØLLER

IPC: F03D7/04 ,  F03D9/25 ,  F03D7/02 ,  G05B19/042

CPC classification number: F03D7/048 ,  F03D7/0264 ,  F03D9/257 ,  G05B19/042 ,  G05B2219/2619 ,  Y02E10/723 ,  Y02E10/725

Abstract: The invention relates to a method for operating a group of wind turbines in a wind power plant coupled to a utility grid, comprising the steps of determining that a wind turbine should be deactivated in response to receiving a power curtailment command from the grid, and retrieving data from each wind turbine in the group of wind turbines. Further, the method no comprises ranking all the wind turbines according to a set of ranking criteria and based on the retrieved data, and selecting a wind turbine to be deactivated based on the ranking. Further, the steps of data retrieval and ranking of all the wind turbines including any deactivated wind turbines in the group are repeated at time intervals, and the wind turbine to be deactivated is re-selected based on this updated ranking. The data may include a down time for any presently deactivated wind turbine in the group of wind turbines, reflecting for how long time the wind turbine has been presently deactivated, and the set of ranking criteria may then comprise a pause criterion taking into account the down time.

公开(公告)号：US20240097486A1

公开(公告)日：2024-03-21

申请号：US18262057

申请日：2022-01-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Rubin PANNI ,  Henrik MØLLER

IPC: H02J13/00 ,  H02J3/00

CPC classification number: H02J13/00002 ,  H02J3/004 ,  H02J2203/20

Abstract: Aspects of the present invention relate to a method for controlling active power output of a renewable energy power plant comprising one or more renewable energy generators. Aspects of the invention may be used to control the active power output of a wind energy power plant and to determine accurate estimates of the available active power when the frequency level of the connected power network is outside of the frequency deadband.

公开(公告)号：US20230059875A1

公开(公告)日：2023-02-23

申请号：US17794546

申请日：2021-01-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Arne BARON ,  Mu WEI ,  Nils PELZER ,  Ulf CLAUSEN ,  Henrik MØLLER ,  Kasper ZINCK ,  Kent TANGE ,  Martin Møller SØRENSEN ,  Rui WU

IPC: H02J3/16 ,  H02J3/14

Abstract: Aspects of the present invention relate to a method of controlling a renewable power plant comprising a plurality of renewable power generators electrically connected by a local network and configured to supply active power to a main network. The method comprises: in response to receiving a signal requesting substantially zero active power supply to the main network: categorizing a generator as power-supplying, and the remaining generators as power-consuming; operating the power-consuming generators to generate no active power and to have their auxiliary systems draw power from the local network; and operating the power-supplying generator to supply active power to the local network such that the plant supplies substantially zero active power to the main network.

公开(公告)号：US20210098992A1

公开(公告)日：2021-04-01

申请号：US16603709

申请日：2018-04-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Rodrigo GARCIA ,  Naveen Kumar BOGGARPU ,  Jorge Martinez GARCIA ,  Kouroush NAYEBI ,  Mu WEI ,  Dumitru-Mihai VALCAN ,  Henrik MØLLER ,  Jacob Barsøe KJÆRGAARD

IPC: H02J3/38 ,  F03D7/02 ,  F03D7/04

Abstract: The present invention relates to a state machine for controlling a wind power plant (WPP), comprising at least one wind turbine connected to an electrical grid, the state machine is adapted to, receive a plant power reference (P_total) according to at least one electrical value of the electrical grid, manage a plurality of control modes and output signals, in relation to the plurality of control modes, select within the control modes, according to controller inputs and contingency at that moment in time, transfer the corresponding control values to a power controller, and dispatch a power reference to each of the at least one wind turbines according to the selected control mode. The invention also relates to a control system arranged to control power output of a wind power plant (WPP), comprising at least one wind turbine connected to an electrical grid, and the control system having a state machine.

公开(公告)号：US20170292498A1

公开(公告)日：2017-10-12

申请号：US15039390

申请日：2014-11-07

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Jorge Martinez GARCIA ,  Rasmus LÆRKE ,  Henrik MØLLER ,  Kouroush NAYEBI ,  Rubin PANNI ,  Chun Meng HENG

IPC: F03D7/02 ,  H02J13/00 ,  H02J3/18 ,  F03D7/04 ,  H02J3/38

CPC classification number: F03D7/0284 ,  F03D7/042 ,  F03D7/047 ,  F03D7/048 ,  F05B2270/1033 ,  F05B2270/337 ,  G05B23/0286 ,  G05B2219/2619 ,  H02J3/16 ,  H02J3/18 ,  H02J3/38 ,  H02J3/386 ,  H02J13/0093 ,  H02J2003/001 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34 ,  Y02P70/523

Abstract: The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.