公开(公告)号：US11306701B2

公开(公告)日：2022-04-19

申请号：US16954084

申请日：2018-11-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Julio Xavier Vianna Neto ,  Germán Claudio Tarnowski ,  Mads Blumensaat ,  Torben Petersen ,  Søren Dalsgaard

IPC: F03D9/00 ,  H02P9/04 ,  F03D7/02 ,  F03D9/11 ,  H02J3/32 ,  H02J3/38

Abstract: A method for controlling a wind turbine is disclosed. During full load operation, a power reference value, Pref, representing a power level to be supplied to the power grid by the wind turbine, is received, and the wind turbine is controlled in order to produce an output power which is at or near the power reference value, Pref, while maintaining a constant torque on the generator. In the case that the produced output power of the wind turbine exceeds the power reference value, Pref, excess produced energy is stored in the energy storage system, and in the case that the produced output power of the wind turbine is below the power reference value, Pref, stored energy is retrieved from the energy storage system. A power level being equal to the power reference value, Pref, is supplied to the power grid.

公开(公告)号：US10193481B2

公开(公告)日：2019-01-29

申请号：US14509633

申请日：2014-10-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: F03D9/00 ,  H02P9/04 ,  H02P9/10 ,  F03D7/02 ,  F03D7/04 ,  F03D9/25 ,  F03D15/10 ,  F03D80/80

Abstract: A variable speed wind turbine is arranged to provide additional electrical power to counteract non-periodic disturbances in an electrical grid. A controller monitors events indicating a need to increase the electrical output power from the wind turbine to the electrical grid. The controller is arranged to control the wind turbine as follows: after an indicating event has been detected, the wind turbine enters an overproduction period in which the electrical output power is increased, wherein the additional electrical output power is taken from kinetic energy stored in the rotor and without changing the operation of the wind turbine to a more efficient working point. When the rotational speed of the rotor reaches a minimum value, the wind turbine enters a recovery period to re-accelerate the rotor to the nominal rotational speed while further contributing to the stability of the electrical grid by outputting at least a predetermined minimum electrical power.

公开(公告)号：US09915244B2

公开(公告)日：2018-03-13

申请号：US14400524

申请日：2013-05-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: F03D9/00 ,  H02J3/38 ,  F03D7/02 ,  F03D9/25

CPC classification number: F03D7/048 ,  F03D7/0272 ,  F03D7/0284 ,  F03D9/255 ,  F03D9/257 ,  F05B2270/337 ,  H02J3/38 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763

Abstract: A method of operating a wind power plant, with at least one wind turbine generator connected to an electrical grid is provided. The method includes monitoring a frequency parameter and comparing it with a frequency set point, as to select a low or high frequency event and determining a power reference to the a least one wind turbine generator, based on the frequency parameter. In case a high frequency event is detected, the power reference is determined as a minimum of a selection of at least a first and a second minimum power reference. And in case a low frequency event is detected, the power reference is determined as a maximum of a selection of at least a first and a second maximum power reference, dispatching the power reference to the at least one wind turbine generator.

公开(公告)号：US11799290B2

公开(公告)日：2023-10-24

申请号：US17434952

申请日：2020-02-06

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Federico Rueda Londono ,  Germán Claudio Tarnowski

IPC: H02J3/24 ,  H02J3/38 ,  H02J3/48

CPC classification number: H02J3/241 ,  H02J3/381 ,  H02J3/48 ,  H02J2300/24 ,  H02J2300/28

Abstract: The present invention relates to a method for operating a power plant comprising a plurality of power producing units, the power plant being operatively connected to an associated power grid having a nominal grid frequency, the method comprising the steps of determining grid frequency variations of the associated power grid, and providing, in response to the determined grid frequency variations, an active power set-point to each of the plurality of power producing units, said active power set-point causing each of the plurality of power producing units to produce active power in response to said active power set-point, said produced active power comprising, in a frequency domain, one or more active power frequency components being different from one or more undesired frequency modes. The present invention also relates to a power plant controller for performing the method.

公开(公告)号：US11415103B2

公开(公告)日：2022-08-16

申请号：US16443195

申请日：2019-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: F03D7/02 ,  F03D9/25 ,  F03D7/04

Abstract: The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plurality of wind turbines generators. The present invention also relates to method accordingly.

公开(公告)号：US20150120070A1

公开(公告)日：2015-04-30

申请号：US14399259

申请日：2013-05-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: F03D7/00 ,  G05F1/67 ,  G05B15/02

CPC classification number: F03D7/028 ,  F03D7/00 ,  F03D7/0284 ,  G05B15/02 ,  G05F1/66 ,  H02J3/38 ,  H02J3/386 ,  Y02E10/763

Abstract: The present invention relates to a method for operating an electrical power system, comprising at least one wind turbine generator and at least one other power source, the method comprises the steps of, setting a set of technical requirements and limits for the electrical power system, including a total power reserve and at least one of: maximum electrical frequency deviation and allowable wind power electrical frequency fluctuations, distributing the total power reserve between the at least one other power source and a total wind power capacity available from the at least one wind turbine generator, and calculating in response thereto an amount of power reserve from the at least one wind turbine generator, and providing settings for a wind power controller, the settings comprising the set of technical requirements and the amount of power reserve from the at least one wind turbine generator. The invention also relates to a power plant operating according to the method.

Abstract translation: 本发明涉及一种用于操作电力系统的方法，包括至少一个风力涡轮发电机和至少一个其它电源，所述方法包括以下步骤：为电力系统设定一组技术要求和限制， 包括总功率储备和以下中的至少一个：最大电气频率偏差和允许的风力发电电频率波动，将所述至少一个其它电源之间的总功率储备分配到可从所述至少一个风力涡轮机 并且响应于此计算来自所述至少一个风力涡轮发电机的动力储备量，并且为风力控制器提供设置，所述设置包括所述一组技术要求和来自所述至少一个风力的动力储备量 涡轮发电机。 本发明还涉及根据该方法操作的发电厂。

公开(公告)号：US20150084338A1

公开(公告)日：2015-03-26

申请号：US14509633

申请日：2014-10-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: H02P9/10

CPC classification number: H02P9/107 ,  F03D7/0276 ,  F03D7/0284 ,  F03D7/042 ,  F03D9/255 ,  F03D15/10 ,  F03D80/80 ,  F05B2270/101 ,  F05B2270/1033 ,  F05B2270/1041 ,  F05B2270/327 ,  F05B2270/337 ,  Y02E10/723 ,  Y02E10/725

Abstract: A variable speed wind turbine is arranged to provide additional electrical power to counteract non-periodic disturbances in an electrical grid. A controller monitors events indicating a need to increase the electrical output power from the wind turbine to the electrical grid. The controller is arranged to control the wind turbine as follows: after an indicating event has been detected, the wind turbine enters an overproduction period in which the electrical output power is increased, wherein the additional electrical output power is taken from kinetic energy stored in the rotor and without changing the operation of the wind turbine to a more efficient working point. When the rotational speed of the rotor reaches a minimum value, the wind turbine enters a recovery period to re-accelerate the rotor to the nominal rotational speed while further contributing to the stability of the electrical grid by outputting at least a predetermined minimum electrical power.

Abstract translation: 变速风力涡轮机被布置成提供额外的电功率以抵消电网中的非周期性干扰。 控制器监视事件，指示需要增加从风力涡轮机到电网的电力输出功率。 控制器被布置成如下控制风力涡轮机：在已经检测到指示事件之后，风力涡轮机进入电力输出功率增加的过度生产周期，其中附加电力输出功率取自存储在 转子，而不会将风力发电机的运行改变为更有效的工作点。 当转子的转速达到最小值时，风力涡轮机进入恢复周期以将转子重新加速到标称转速，同时通过输出至少预定的最小电功率来进一步有助于电网的稳定性。

公开(公告)号：US12116985B2

公开(公告)日：2024-10-15

申请号：US17922413

申请日：2021-04-22

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Torsten Lund ,  John Godsk Nielsen ,  Gert Karmisholt Andersen ,  Kouroush Nayebi ,  Poul Brandt Christensen ,  Germán Claudio Tarnowski ,  Esmaeil Ebrahimzadehveshareh

IPC: F03D9/00 ,  F03D9/11 ,  F03D9/25 ,  H02P9/10 ,  H02J3/32 ,  H02J7/00 ,  H02P101/15 ,  H02P103/20

CPC classification number: F03D9/11 ,  F03D9/255 ,  H02P9/105 ,  F05B2270/1033 ,  H02J3/32 ,  H02J7/00712 ,  H02J2207/20 ,  H02J2207/50 ,  H02J2300/28 ,  H02P2101/15 ,  H02P2103/20

Abstract: The invention relates to a method for controlling power generation of a VSM wind turbine. The wind turbine comprises a machine side converter, a line side converter, a DC link, and an electric storage device electrically connected to the DC link. The method comprises determining a first power control signal to the machine side converter, determining a second power control signal for controlling a desired output power of the line side converter based on a storage device voltage error, and a power production reference, and determining a charging current reference for controlling charging and discharging of the electric storage device based on a DC-link voltage error.

公开(公告)号：US11990755B2

公开(公告)日：2024-05-21

申请号：US18305055

申请日：2023-04-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Per Hagen Nielsen ,  Lennart Petersen ,  Germán Claudio Tarnowski

IPC: H02J3/24 ,  G01R19/04 ,  G01R19/10

CPC classification number: H02J3/241 ,  G01R19/04 ,  G01R19/10

Abstract: A method for detecting power oscillation in an electric power grid, wherein the method comprises: integrating a filtered signal on a first interval, the filtered signal being associated with the electric power grid; based on the integration of the filtered signal on the first interval, determining a positive half-period area of the filtered signal and a negative half-period area of the filtered signal, one of the positive half-period area and negative half-period area being immediately subsequent to the other one; and determining that a power oscillation in the electric power grid is detected if the following two conditions are met:



a sum of the positive half-period area of the filtered signal and the negative half-period area of the filtered signal is below a first threshold; and
the absolute value of one of the positive half-period area and negative half-period area is above a second threshold.

公开(公告)号：US11448187B2

公开(公告)日：2022-09-20

申请号：US16443195

申请日：2019-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Germán Claudio Tarnowski

IPC: F03D7/02 ,  F03D9/25 ,  F03D7/04

Abstract: The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plurality of wind turbines generators. The present invention also relates to method accordingly.