公开(公告)号：WO2022167048A1

公开(公告)日：2022-08-11

申请号：PCT/DK2022/050011

申请日：2022-01-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： YIN, Bo ,  LUND, Torsten ,  ANDERSEN, Gert Karmisholt ,  NAYEBI, Kouroush ,  GUPTA, Manoj

IPC: H02J3/18

Abstract: The invention relates to wind turbines, particularly to controlling reactive power exchange between a power grid and a wind power plant. The wind power plant has a plurality of wind turbine generators each having a corresponding power converter with a converter controller. Further, the wind power plant has a power plant transformer with an on load tap changer coupled between the wind power plant and the power grid. The power plant controller is regulating the on load tap changer and is generating reactive component setpoints for the wind turbine generators, when determining a need for production of short-term reactive power due to a sudden change in reactive power measured at the point of common coupling.

公开(公告)号：WO2017000946A1

公开(公告)日：2017-01-05

申请号：PCT/DK2016/050188

申请日：2016-06-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ZHOU, Yu ,  ANDERSEN, Gert Karmisholt ,  GUPTA, Manoj ,  GANEPOLA, Vajira Suminda ,  BIRIS, Ciprian ,  COVA ACOSTA, Miguel Angel

IPC: H02H3/46 ,  H02H7/06 ,  H02J7/14 ,  G01R19/25 ,  G01R23/02 ,  F03D7/02

CPC classification number: H02H3/46 ,  F03D7/0264 ,  F05B2270/107 ,  G01R19/2513 ,  G01R23/02 ,  H02H7/067

Abstract: A method is provided of protecting a wind turbine with a doubly-fed induction generator (DFIG) against a sub-synchronous resonance (SSR) event acting on the wind turbine. A plurality of power-output values or current-output values is measured over a given period of time that corresponds to a measurement cycle. It is determined whether power-output values or current-output-values measured in the at-least-one measurement cycle are indicative of an SSR-event critical for further operation of the wind turbine. The wind turbine is shut down if the measured power-output values or current-output values are indeed indicative of an SSR- event critical for operation of the wind turbine.

Abstract translation: 提供了一种利用双馈感应发电机（DFIG）来保护风力涡轮机以抵抗作用在风力涡轮机上的次同步共振（SSR）事件的方法。 在对应于测量周期的给定时间段内测量多个功率输出值或电流 - 输出值。 确定在至少一个测量周期中测量的功率输出值或电流 - 输出值是否表示对风力涡轮机的进一步操作至关重要的SSR事件。 如果测量的功率输出值或电流 - 输出值确实表示对于风力涡轮机的操作至关重要的SSR事件，则风力涡轮机关闭。

公开(公告)号：WO2020001716A1

公开(公告)日：2020-01-02

申请号：PCT/DK2019/050173

申请日：2019-06-03

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GUPTA, Manoj ,  KUMAR, Ravi

IPC: H02J3/38 ,  H02J3/24 ,  H02J7/34 ,  H02J3/00

Abstract: A method for operating a renewable energy power plant comprising a plurality of renewable energy generators, a plurality of power dissipation systems and a battery storage system is provided. The method comprises steps of: monitoring the statuses of the power dissipation systems; performing a ramped active power recovery operation following a voltage deviation, and controlling the battery storage system during the ramped active power recovery operation to absorb power generated by the renewable energy generators in dependence on the monitored statuses of the power dissipation systems.

公开(公告)号：WO2017000945A1

公开(公告)日：2017-01-05

申请号：PCT/DK2016/050172

申请日：2016-06-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ANDERSEN, Gert Karmisholt ,  BIRIS, Ciprian ,  ZHOU, Yi ,  GUPTA, Manoj ,  GANEPOLA, Vajira Suminda ,  MERRILD, Uffe C.

IPC: H02P9/10 ,  H02P9/00

CPC classification number: H02P9/007 ,  H02P9/006 ,  H02P9/102

Abstract: A method is provided of controlling a doubly fed induction generator- (DFIG) wind turbine converter system if a sub-synchronous resonance event acts on the wind turbine. According to the method a sub-synchronous resonance event is detected. Thereupon, a switch from a non- SSR-control mode to a SSR-control mode is performed. At least one of the following activities is performed in the SSR-control mode, namely: (i) freezing rotor AC voltages in magnitude and phase, (ii) altering at least one rotor-current-controller gain (iii) altering at least one rotor-current-controller time constant, to dampen the effect of the SSR-event on the wind turbine.

Abstract translation: 如果副同步共振事件作用在风力涡轮机上，则提供一种控制双馈感应发电机（DFIG）风力涡轮机转换器系统的方法。 根据该方法，检测到副同步共振事件。 因此，执行从非SSR控制模式切换到SSR控制模式的切换。 在SSR控制模式中执行以下活动中的至少一个，即：（i）在大小和相位上冷冻转子AC电压，（ii）改变至少一个转子 - 电流 - 控制器增益（iii）改变至少一个 转子 - 电流 - 控制器时间常数，以减轻风力发电机组上的SSR事件的影响。

公开(公告)号：WO2013097862A2

公开(公告)日：2013-07-04

申请号：PCT/DK2012/050493

申请日：2012-12-20

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GUPTA, Amit Kumar ,  GUPTA, Manoj

CPC classification number: F03D7/00 ,  F03D9/255 ,  F03D9/257 ,  H02J3/386 ,  H02M5/458 ,  H02P2101/15 ,  Y02E10/763

Abstract: A wind turbine generator is disclosed herein. In a described embodiment, the wind turbine generator comprises an electrical generator 101 configured to generate AC signals, a plurality of power converters 110,112,111 operated by a gating signal with each power converter configured to convert the AC signals from the electrical generator 101 into fixed frequency AC signals. The wind turbine generator further comprises a controller configured to enter a fault mode when a grid voltage falls outside an acceptable threshold, and during the fault mode the controller is configured to provide a reactive current reference dependant on a grid voltage distant from the wind turbine generator.A method of controlling a wind turbine generator is also disclosed.

Abstract translation: 本文公开了一种风力涡轮发电机。 在所描述的实施例中，风力涡轮发电机包括被配置为产生AC信号的发电机101，由选通信号操作的多个功率转换器110,112,111，每个功率转换器被配置为将来自发电机101的AC信号转换成固定频率AC 信号。 风力涡轮发电机还包括控制器，其配置为当电网电压落在可接受的阈值之外时进入故障模式，并且在故障模式期间，控制器被配置为提供取决于远离风力涡轮发电机的电网电压的无功电流参考 还公开了一种控制风力涡轮发电机的方法。

公开(公告)号：WO2017215719A1

公开(公告)日：2017-12-21

申请号：PCT/DK2017/050181

申请日：2017-05-31

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GANEPOLA, Vajira Suminda ,  GUPTA, Manoj ,  KUMAR, Ravi ,  NAYEBI, Kouroush

IPC: H02J3/38

Abstract: A power plant control system for a first renewable energy power plant comprising one or more renewable energy generators. The power plant control system comprises receiving means for receiving a power delivery demand from a transmission grid operator; control means configured to control the one or more renewable energy generators of the first renewable energy power plant so as to supply power that targets the received power delivery demand; and communication means configured to transmit a request to one or more further renewable energy power plant control systems to request operation of one or more power compensation units associated with respective ones of the further renewable energy power plants. The embodiments of the invention are beneficial in that the power plant control system of the first renewable energy power plant has the functionality to manage the power delivery across multiple power plants, and therefore acts as an energy management system, able to active assets of other power plants so as to react quickly to any grid instabilities that may be detected. This provides a robust response to grid instabilities. The invention has particular utility to wind power plants, but also applies to other types of renewable energy power plants, for example photo-voltaic power plants, hydro-electric power plants and the like.

Abstract translation: 用于包括一个或多个可再生能源发电机的第一可再生能源发电厂的发电厂控制系统。 该发电厂控制系统包括：接收装置，用于从传输电网运营商接收电力输送需求; 控制装置，其被配置为控制所述第一可再生能源发电厂的所述一个或多个可再生能源发电机，以提供以所述所接收的能源输送需求为目标的能源; 以及通信装置，其被配置为向一个或多个另外的可再生能源发电站控制系统发送请求以请求与所述另外的可再生能源发电厂中的相应一个相关联的一个或多个功率补偿单元的操作。 本发明的实施例的益处在于，第一可再生能源发电站的发电站控制系统具有管理跨多个发电站的功率输送的功能，并且因此充当能量管理系统，能够激活其他功率的资产 以便对可能检测到的任何电网不稳定性作出快速反应。 这为电网不稳定性提供了强有力的响应。 本发明对风力发电厂具有特殊的用途，但也适用于其他类型的可再生能源发电厂，例如光伏发电厂，水力发电厂等。

公开(公告)号：WO2017174085A1

公开(公告)日：2017-10-12

申请号：PCT/DK2017/050088

申请日：2017-03-27

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GUPTA, Amit ,  PRATAMA, Ryan Arya ,  SHIVARAMAN, Arun Kumar ,  GUPTA, Manoj

IPC: H02J3/16 ,  H02J3/38 ,  F03D7/00 ,  H02J3/18

Abstract: A method of controlling a wind turbine generator (1) comprising an electrical generator (20) and a power converter (22), the power converter (22) being configured to process electrical power produced by the electrical generator (20) to supply output power to an electrical grid (44) through a transmission line (46), the method comprising: determining a transmission line impedance value; calculating a reactive power reference based on the transmission line impedance value and an active power reference; and controlling the wind turbine generator (1) to adjust the output power based on the calculated reactive power reference.

Abstract translation: 控制包括发电机（20）和功率转换器（22）的风力涡轮发电机（1）的方法，所述功率转换器（22）被配置为处理由所述电气 发电机（20）通过传输线（46）向电网（44）提供输出功率，所述方法包括：确定传输线阻抗值; 基于传输线阻抗值和有功功率参考来计算无功功率参考; 并且控制风力涡轮发电机（1）基于所计算的无功功率参考来调整输出功率。

公开(公告)号：WO2015086022A1

公开(公告)日：2015-06-18

申请号：PCT/DK2014/050401

申请日：2014-11-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： SABOOR, Abdul ,  GUPTA, Manoj

IPC: H02J3/38 ,  F03D7/04

CPC classification number: H02J3/16 ,  F03D7/0284 ,  F03D7/048 ,  F05B2270/337 ,  H02J3/381 ,  H02J3/386 ,  H02J3/50 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34

Abstract: In various embodiments of the present disclosure, there is provided a method for controlling a reactive current injection in a wind power plant during a grid fault. According to an embodiment, the method includes measuring an amount of reactive current to be provided by the wind power plant to the grid during the grid fault. The method further includes determining a difference between a given required reactive current contribution from the wind power plant and the amount of reactive current to be provided by the wind power plant to the grid during the grid fault. According to an embodiment, the method includes controlling a plurality of wind turbine generators in the wind power plant to generate additional reactive current according to a reactive current reference generated based on the difference. A corresponding wind power plant is further provided.

Abstract translation: 在本公开的各种实施例中，提供了一种用于在电网故障期间控制风力发电厂中的无功电流注入的方法。 根据实施例，该方法包括在电网故障期间测量由风力发电站提供给电网的无功电流的量。 该方法还包括确定风力发电厂给定的所需无功电流贡献与在电网故障期间由风力发电厂提供给电网的无功电流量之间的差异。 根据实施例，该方法包括控制风力发电厂中的多个风力涡轮发电机，以根据基于该差产生的无功电流参考来产生额外的无功电流。 进一步提供相应的风力发电厂。

公开(公告)号：WO2015086021A1

公开(公告)日：2015-06-18

申请号：PCT/DK2014/050400

申请日：2014-11-25

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GUPTA, Manoj ,  SABOOR, Abdul

IPC: H02J3/38 ,  F03D7/04

CPC classification number: H02J3/386 ,  F03D7/0284 ,  F03D7/042 ,  F03D7/048 ,  F03D9/257 ,  F05B2270/1033 ,  F05B2270/335 ,  F05B2270/337 ,  H02J3/16 ,  H02K7/183 ,  H02P9/102 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34

Abstract: In various embodiments of the present disclosure, there is provided a method for increasing the reactive power capability of a wind power plant, in controlling a wind power plant. According to an embodiment, the method includes receiving a reactive power requirement from an electrical grid. The method further includes determining an active power generated by the wind power plant. According to an embodiment, the method includes checking if the reactive power requirement is satisfied by the wind power plant based on the active power generated by the wind power plant. The method further includes controlling the wind power plant to curtail the active power generated by the wind power plant by a curtailment amount when the reactive power requirement is not satisfied, and in response to a grid event.A corresponding wind power plant is further provided.

Abstract translation: 在本公开的各种实施例中，提供了一种用于在控制风力发电厂中增加风力发电厂的无功功率能力的方法。 根据实施例，该方法包括从电网接收无功功率需求。 该方法还包括确定由风力发电厂产生的有功功率。 根据实施例，该方法包括基于风力发电厂产生的有功功率来检查风力发电厂是否满足无功功率需求。 该方法还包括控制风力发电厂，以在不满足无功功率需求时，以及响应于电网事件，来限制由风力发电厂产生的有功功率的削减量。进一步提供相应的风力发电厂。

公开(公告)号：WO2014124644A1

公开(公告)日：2014-08-21

申请号：PCT/DK2013/050039

申请日：2013-02-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GUPTA, Manoj ,  GURU, Dilip, Kumar ,  GUPTA, Amit, Kumar

IPC: H02J3/16 ,  H02J3/38

CPC classification number: F03D7/048 ,  F03D7/0272 ,  F03D9/257 ,  G05B23/0235 ,  H01H71/10 ,  H01H81/00 ,  H02H3/006 ,  H02H3/025 ,  H02H3/08 ,  H02H7/093 ,  H02H7/30 ,  H02J3/16 ,  H02J3/18 ,  H02J3/38 ,  H02J3/381 ,  H02J3/382 ,  H02J3/386 ,  H02P9/006 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/34

Abstract: A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution.

Abstract translation: 提供了一种操作风力涡轮机设备的方法。 这种风力涡轮机设备包括至少一个包括多个风力涡轮发电机的传输分支，并且通过包括断路能力的至少一个断路器在公共耦合点处耦合到电网。 该方法包括监测低压故障事件的电网; 并且如果检测到低电压故障事件：计算电网短路强度，如果电网短路强度需要超过断路器通过电路的分断能力的初始故障电流贡献，则确定短路电流限制 断路器，基于短路电流限制确定最大故障电流贡献，并操作风力涡轮发电机以向电网提供最大故障电流贡献。