公开(公告)号：WO2012146250A3

公开(公告)日：2012-11-01

申请号：PCT/DK2012/050131

申请日：2012-04-19

Applicant: VESTAS WIND SYSTEMS A/S ,  GUPTA, Amit Kumar ,  ANDERSEN, Gert Karmisholt ,  FONN, Swee Yee ,  LI, Bing

Inventor： GUPTA, Amit Kumar ,  ANDERSEN, Gert Karmisholt ,  FONN, Swee Yee ,  LI, Bing

IPC: H02P9/00 ,  H02P9/10 ,  F03D9/00 ,  H02P3/22 ,  F03D7/02

Abstract: A variable speed wind turbine is provided. The variable speed wind turbine comprises a generator, a power converter for converting at least a portion of electrical power generated by the generator, the power converter comprising a generator-side converter, a grid-side converter and a DC (direct current) link therebetween, a power dissipating unit operatively coupled to the DC-link, and a controller. The controller is adapted to receive a request to reduce power output from the wind turbine, determine a feed forward power signal based on a reference generator power and a desired turbine power, and operate the power dissipating unit based on the feed forward power signal.

公开(公告)号：WO2012083963A1

公开(公告)日：2012-06-28

申请号：PCT/DK2011/050502

申请日：2011-12-20

Applicant: VESTAS WIND SYSTEMS A/S ,  GUPTA, Amit Kumar ,  TRIPATHI, Anshuman

Inventor： GUPTA, Amit Kumar ,  TRIPATHI, Anshuman

IPC: F03D1/00 ,  H02M5/458 ,  H02M7/06 ,  H02M1/32

CPC classification number: F03D9/255 ,  H02J3/386 ,  Y02E10/763

Abstract: According to a method of the present invention, a method of operating a wind turbine comprising a power generator, a generator side converter connected to the power generator, a line side converter connected to a power grid through power components, and a DC-link connected between the generator side converter and the line side converter is provided, the method comprising: monitoring the grid voltages on the power grid for overvoltage events; if an overvoltage event is detected, operating the line side converter in an overmodulation range for at least a part of the duration of the overvoltage event.

Abstract translation: 根据本发明的方法，一种运行风力涡轮机的方法，包括发电机，连接到发电机的发电机侧转换器，通过功率部件连接到电网的线路侧转换器，以及连接到 提供发电机侧转换器和线路侧转换器之间的方法，该方法包括：监视电网上的电网电压以用于过电压事件; 如果检测到过电压事件，则在过电压事件的持续时间的至少一部分时间内将线路侧转换器工作在过调制范围内。

公开(公告)号：WO2012022353A2

公开(公告)日：2012-02-23

申请号：PCT/DK2011/050310

申请日：2011-08-16

Applicant: VESTAS WIND SYSTEMS A/S ,  GUPTA, Amit Kumar ,  ANSHUMAN, Tripathi ,  CAO, Shu Yu

Inventor： GUPTA, Amit Kumar ,  ANSHUMAN, Tripathi ,  CAO, Shu Yu

IPC: H02J3/00

CPC classification number: H02M7/539 ,  H02J3/386 ,  H02M7/483 ,  H02M7/53875 ,  H02P9/00 ,  H02P2101/15 ,  Y02E10/763

Abstract: According to an embodiment of the present invention, a method of controlling a grid side converter of a wind turbine is provided, wherein an output of the grid side converter is connected or connectable via a power line to an input of a grid transformer, the method comprising: determining a converter volt-sec occurring at the output of the grid side converter based on a converter voltage occurring at the output of the grid side converter; determining a volt-sec error between the determined converter volt-sec and a converter volt-sec reference, wherein the converter volt-sec reference is determined based on active power reference, reactive power reference, line current and a line voltage occurring at the input of the grid transformer (or at wind turbine terminals); and controlling, based on the determined volt-sec error, the grid side converter such that the volt-sec error is partly or fully compensated. The method is capable of supporting the demanded power quality even during abnormal voltage conditions, and is easy to realize. The method can seamlessly transit from linear to non-linear region of converter operation.

Abstract translation: 根据本发明的一个实施例，提供了一种控制风力涡轮机的电网侧转换器的方法，其中电网侧转换器的输出通过电力线连接或连接到电网变压器的输入端，该方法 包括：基于在所述电网侧转换器的输出处出现的转换器电压，确定在所述电网侧转换器的输出处出现的转换器电压 - 秒; 确定所确定的转换器伏特和转换器伏秒参考之间的伏特 - 秒误差，其中转换器伏特参考基于有功功率参考，无功功率参考，线电流和在输入端产生的线电压来确定 的电网变压器（或风力涡轮机端子）; 以及基于所确定的伏特 - 秒误差来控制所述电网侧转换器，使得所述伏秒误差被部分地或完全地补偿。 该方法即使在异常电压条件下也能够支持要求的电力质量，并且容易实现。 该方法可以从转换器工作的线性到非线性区域无缝转换。

公开(公告)号：WO2011019321A3

公开(公告)日：2011-02-17

申请号：PCT/SG2010/000294

申请日：2010-08-10

Applicant: VESTAS WIND SYSTEMS A/S ,  GUPTA, Amit Kumar ,  OPINA, Gil Jr Lampong ,  TRIPATHI, Anshuman ,  KARUPPANAN, Yugarajan ,  TUMABCAO, Michael Casem

Inventor： GUPTA, Amit Kumar ,  OPINA, Gil Jr Lampong ,  TRIPATHI, Anshuman ,  KARUPPANAN, Yugarajan ,  TUMABCAO, Michael Casem

IPC: F03D7/00 ,  F03D9/02

Abstract: A variable speed wind turbine is provided. The wind turbine comprises a generator, a power converter for converting at least a portion of electrical power generated by the generator, an energy management arrangement coupled to the power converter, the energy management arrangement comprises an energy storage unit, and a controller. The controller is adapted to detect a power imbalance event and to transfer at least a portion of excess electrical energy generated by the generator to the energy storage unit to be stored therein when the power imbalance event is detected.

公开(公告)号：EP3061170B1

公开(公告)日：2020-09-16

申请号：EP14780751.5

申请日：2014-09-26

Applicant: Vestas Wind Systems A/S

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

IPC: H02H7/30 ,  F03D7/02 ,  F03D7/04 ,  F03D9/00 ,  H02J3/00 ,  H02J3/16 ,  H02J3/24 ,  H02J3/38 ,  H02P9/00

公开(公告)号：EP2655871A1

公开(公告)日：2013-10-30

申请号：EP11804948.5

申请日：2011-12-20

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  TRIPATHI, Anshuman

IPC: F03D1/00 ,  H02M5/458 ,  H02M7/06 ,  H02M1/32

CPC classification number: F03D9/255 ,  H02J3/386 ,  Y02E10/763

Abstract: According to a method of the present invention, a method of operating a wind turbine comprising a power generator, a generator side converter connected to the power generator, a line side converter connected to a power grid through power components, and a DC-link connected between the generator side converter and the line side converter is provided, the method comprising: monitoring the grid voltages on the power grid for overvoltage events; if an overvoltage event is detected, operating the line side converter in an overmodulation range for at least a part of the duration of the overvoltage event.

Abstract translation: 根据本发明的方法，一种运行风力涡轮机的方法，包括发电机，连接到发电机的发电机侧转换器，通过功率部件连接到电力网的线路侧转换器，以及连接有直流链路 提供发电机侧转换器和线路侧转换器之间的方法，该方法包括：监视电网上的电网电压以实现过电压事件; 如果检测到过电压事件，则在过电压事件的持续时间的至少一部分时间内将线路侧转换器工作在过调制范围内。

公开(公告)号：EP2638282B1

公开(公告)日：2020-09-09

申请号：EP11791195.8

申请日：2011-11-08

Applicant: Vestas Wind Systems A/S

Inventor： TEODORESCU, Remus ,  RODRIGUEZ, Pedro ,  ALLOZA, Alvaro Luna ,  GUPTA, Amit Kumar

IPC: H02J3/26 ,  F03D7/02 ,  F03D7/04 ,  F03D9/25 ,  H02J3/38

公开(公告)号：EP2638283B1

公开(公告)日：2019-10-09

申请号：EP11794009.8

申请日：2011-11-10

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  NIELSEN, John Godsk ,  YANG, Liang

IPC: H02J3/26 ,  F03D7/02 ,  F03D7/04 ,  H02J3/38 ,  F03D9/25

公开(公告)号：EP2875238B1

公开(公告)日：2019-02-20

申请号：EP13739350.0

申请日：2013-07-12

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  PRATAMA, Ryan Arya

IPC: F03D7/02 ,  F03D9/25

公开(公告)号：EP2875238A1

公开(公告)日：2015-05-27

申请号：EP13739350.0

申请日：2013-07-12

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  PRATAMA, Ryan Arya

IPC: F03D7/02 ,  F03D9/00

CPC classification number: H02P9/102 ,  F03D7/0224 ,  F03D7/0284 ,  F03D9/255 ,  F05B2270/107 ,  F05B2270/337 ,  H02P2101/15 ,  Y02E10/723

Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least one blade having a variable pitch angle, a power generator, and a power converter connected to the power generator via a first circuit breaker and to a power grid via a second circuit breaker. According to the method, overvoltage events at the power grid are monitored. If an overvoltage event is detected, the method comprises opening the first circuit breaker and the second circuit breaker, disabling active operation of the power converter, connecting a power dissipating unit to the power generator to dissipate power output from the power generator, and moving the pitch angle of the at least one blade towards a feathered position.

Abstract translation: 提供了一种操作风力涡轮机的方法。 该风力涡轮机包括具有至少一个具有可变桨距角的叶片的涡轮机转子，发电机和经由第一断路器连接到发电机并经由第二断路器连接到电网的电力转换器。 根据该方法，监测电网的过电压事件。 如果检测到过电压事件，则该方法包括断开第一断路器和第二断路器，禁用功率变换器的有效操作，将功率消耗单元连接到功率发生器以耗散从功率发生器输出的功率， 该至少一个叶片朝向顺桨位置的倾斜角。