公开(公告)号：EP2798718A2

公开(公告)日：2014-11-05

申请号：EP12810059.1

申请日：2012-12-20

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  GUPTA, Manoj

IPC: H02J3/38 ,  H02M5/458

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: 这里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。 该风力涡轮发电机还包括控制器，该控制器被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：EP2464860A2

公开(公告)日：2012-06-20

申请号：EP10805664.9

申请日：2010-08-10

Applicant: Vestas Wind Systems A/S

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

IPC: F03D7/00 ,  F03D9/02

CPC classification number: F03D7/028 ,  F03D7/0272 ,  F03D9/10 ,  F03D9/11 ,  F03D9/12 ,  F03D9/19 ,  F03D9/255 ,  F05B2270/1016 ,  F05B2270/1071 ,  F05B2270/322 ,  Y02E10/723

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：EP3011666A1

公开(公告)日：2016-04-27

申请号：EP13731670.9

申请日：2013-06-18

Applicant: Vestas Wind Systems A/S

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

IPC: H02M1/12 ,  H02J3/01

CPC classification number: H02J3/01 ,  G01R19/0092 ,  G01R27/02 ,  H02J3/1842 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  H02M1/12 ,  H02M7/44 ,  Y02E10/763 ,  Y02E40/22

Abstract: The invention relates to a control system for compensating undesired electrical harmonics on an electrical grid. Part of the control system referred to as a harmonic compensator is operatively connected with a power inverter of a power producing unit supplying power to the grid. Another part of the control system, referred to as an impedance detector, is operatively connected to a point of coupling to which point one or more power producing units are connected. The impedance detector is configured to scan impedances as a function of frequency to identify frequencies of impedance peaks which peaks are indicative of resonance frequencies. The determined resonance frequencies are supplied to one or more the harmonic compensators. A compensator determines control signals to the inverter which causes the inverter to inject compensation currents to the grid which currents will damp currents oscillating at or close to the determined resonance frequency.

公开(公告)号：EP2649306B1

公开(公告)日：2016-03-23

申请号：EP11799348.5

申请日：2011-12-07

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  TRIPATHI, Anshuman ,  STYHM, Ove ,  HELLE, Lars ,  KARUPPANAN, Yugarajan ,  OPINA, Gil Jr Lampong

IPC: F03D9/00 ,  H02J3/38

CPC classification number: F03D7/0264 ,  F03D9/255 ,  H02J3/386 ,  Y02E10/72 ,  Y02E10/763

Abstract: A method of operating a wind turbine is disclosed, the wind turbine comprising a power generator, a machine-side converter connected to the power generator, a line-side converter connected to a power grid through associated power components, and a DC-link connected between the machine-side converter and the line-side converter. The method includes monitoring the power grid for overvoltage events, and upon detecting an overvoltage event: (1) disabling active operation of the machine-side converter and the line-side converter, (2) enabling an AC load dump connected between the machine side converter and the power generator in order to dissipate power output from the power generator, (3) waiting for a waiting period, and (4) enabling active operation of the line-side converter and the machine converter when the overvoltage event ends within the waiting period.

公开(公告)号：EP2702684B1

公开(公告)日：2015-08-26

申请号：EP12718587.4

申请日：2012-04-19

Applicant: Vestas Wind Systems A/S

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

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

CPC classification number: F03D7/0284 ,  F03D7/00 ,  F03D7/0264 ,  F03D7/028 ,  F03D9/255 ,  F05B2270/1033 ,  H02J3/386 ,  H02P3/22 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763

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：EP2798201A2

公开(公告)日：2014-11-05

申请号：EP12810064.1

申请日：2012-12-21

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  THIA, Hock Heng ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt

IPC: F03D7/02 ,  F03D7/04 ,  H02P9/08 ,  H02J3/38

Abstract: A 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 dissipating unit and a controller. The power converter comprises a generator-side converter, a grid-side converter and a DC (direct current) link there between. The energy dissipating unit is operatively coupled to the DC-link. The controller is adapted to activate the energy dissipating unit to dissipate energy from the DC-link in response to a shutdown request.

Abstract translation: 提供风力涡轮机。 风力涡轮机包括发电机，用于转换由发电机产生的电力的至少一部分的功率转换器，能量消散单元和控制器。 电力转换器包括发电机侧转换器，电网侧转换器和其间的DC（直流）连接。 能量消耗单元可操作地耦合到DC链路。 控制器适于激活能量消耗单元以响应于关闭请求而从DC链路消散能量。

公开(公告)号：EP2737622A2

公开(公告)日：2014-06-04

申请号：EP12740886.2

申请日：2012-07-24

Applicant: Vestas Wind Systems A/S

Inventor： STYHM, Ove ,  TRIPATHI, Anshuman ,  GUPTA, Amit Kumar

IPC: H02P3/22 ,  H02P9/00

CPC classification number: H02P9/00 ,  F03D7/04 ,  F03D9/255 ,  H02H7/067 ,  H02P3/22 ,  H02P9/006 ,  H02P2101/15 ,  Y02E10/72

Abstract: A power dissipating arrangement for dissipating power from a generator in a wind turbine is provided. The generator comprises a plurality of output terminals corresponding to a multi-phase output. The power dissipating arrangement comprises a plurality of dissipating units, a plurality of semiconductor switches, a trigger circuit for switching the semiconductor switches and a control unit for controlling the operation of the trigger circuit, thereby controlling the switching of the semiconductor switches. Each dissipating unit includes a first terminal and a second terminal. The first terminal of each dissipating unit is coupled to each output terminal of the generator. Each semiconductor switch includes a first terminal anode, a second terminal and a gate terminal. The first terminal of each semiconductor switch is coupled to the second terminal of each dissipating unit and the second terminal of the semiconductor switch is coupled to the second terminal of another dissipating unit, such that the second terminal of each dissipating unit is coupled to the first terminal of one semiconductor switch and the second terminal of another semiconductor switch. The trigger circuit is coupled to the gate terminal of the plurality of the semiconductor switches for switching the semiconductor switches.

Abstract translation: 提供了用于从风力涡轮机中的发电机消散功率的功率耗散装置。 发生器包括对应于多相输出的多个输出端子。 功率消耗装置包括多个散热单元，多个半导体开关，用于切换半导体开关的触发电路和用于控制触发电路的操作的控制单元，从而控制半导体开关的切换。 每个散热单元包括第一端子和第二端子。 每个耗散单元的第一端连接到发电机的每个输出端。 每个半导体开关包括第一端子阳极，第二端子和栅极端子。 每个半导体开关的第一端子耦合到每个耗散单元的第二端子，并且半导体开关的第二端子耦合到另一个耗散单元的第二端子，使得每个耗散单元的第二端子耦合到第一 一个半导体开关的端子和另一个半导体开关的第二端子。 触发电路耦合到多个半导体开关的栅极端子，用于切换半导体开关。

公开(公告)号：EP2798718B1

公开(公告)日：2020-04-15

申请号：EP12810059.1

申请日：2012-12-20

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Amit Kumar ,  GUPTA, Manoj

IPC: H02J3/38 ,  H02M5/458

公开(公告)号：EP2737622B1

公开(公告)日：2019-06-26

申请号：EP12740886.2

申请日：2012-07-24

Applicant: Vestas Wind Systems A/S

Inventor： STYHM, Ove ,  TRIPATHI, Anshuman ,  GUPTA, Amit Kumar

IPC: H02P3/22 ,  H02P9/00

公开(公告)号：EP2702684A2

公开(公告)日：2014-03-05

申请号：EP12718587.4

申请日：2012-04-19

Applicant: Vestas Wind Systems A/S

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

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

CPC classification number: F03D7/0284 ,  F03D7/00 ,  F03D7/0264 ,  F03D7/028 ,  F03D9/255 ,  F05B2270/1033 ,  H02J3/386 ,  H02P3/22 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763

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.

Abstract translation: 提供了一种可变速风力涡轮机。 变速风力涡轮机包括发电机，用于至少由所述发电机产生的电功率的一部分转换的功率转换器，功率转换器，包括一个发电机侧转换器，电网侧转换器和DC（直流）链路存在之间 中，功率消耗单元可操作地耦合到DC链路，以及控制器。 所述控制器angepasst接收来减少功率输出从所述风力涡轮机基于参考发电机功率和期望涡轮机功率的，确定性的矿前馈功率信号，并操作基于所述前馈功率信号的功率消耗单元的请求。