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1.发明授权公开(公告)号：US09496813B2
公开(公告)日：2016-11-15
申请号：US14407592
申请日：2013-07-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Ryan Arya Pratama
IPC: F03D9/00 , H02P9/10 , F03D7/02 , H02P101/15
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。 风力涡轮机包括具有至少一个具有可变俯仰角的叶片的涡轮转子，发电机和经由第一断路器连接到发电机的功率转换器，以及经由第二断路器连接到电网的电力转换器。 根据该方法，监测电网过电压事件。 如果检测到过电压事件，则该方法包括打开第一断路器和第二断路器，禁用功率转换器的主动操作，将功率消耗单元连接到功率发生器，以耗散从发电机输出的功率，并移动 所述至少一个叶片的俯仰角朝向羽状位置。
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公开(公告)号：US09438155B2
公开(公告)日：2016-09-06
申请号：US13729705
申请日：2012-12-28
Applicant: Vestas Wind Systems A/S
Inventor： Shu Yu Cao , Anshuman Tripathi , Swee Yee Fonn , Ramasamy Anbarasu , Amit Kumar Gupta
CPC classification number: H02P9/02 , H02P21/12 , H02P21/141 , H02P25/024 , H02P25/28 , H02P25/30 , H02P27/02
Abstract: Parameters of PM machines, especially for IPM machine, are known to vary by significant amounts. This affects the controllability of such machines, which may lead to reduced power loading capability and increased losses. The present invention relates to a method for PM machine inductance profile identification based on voltage mode stator flux observation which could be easily integrated to the generator start-up process in wind turbine application for both stator flux vector feedback control system and current vector feedback control system.
Abstract translation: 已知PM机器，特别是IPM机器的参数变化很大。 这会影响这种机器的可控性，这可能导致功率负载能力下降和损失增加。 本发明涉及一种基于电压模式定子磁链观测的PM机电感轮廓识别方法，可以容易地集成到定子通量矢量反馈控制系统和电流矢量反馈控制系统的风力发电机应用中的发电机启动过程 。
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公开(公告)号：US09347434B2
公开(公告)日：2016-05-24
申请号：US14362052
申请日：2012-12-21
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Hock Heng Thia , Duy Duc Doan , Gert Karmisholt Andersen
CPC classification number: F03D7/0264 , F03D9/255 , H02J3/386 , H02P9/08 , H02P29/024 , H02P29/0241 , Y02E10/723 , Y02E10/763
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。 功率转换器包括发生器侧转换器，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。 控制器适于响应于关闭请求而激活能量消散单元以从DC链路消散能量。
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4.发明申请公开(公告)号：US20150155809A1
公开(公告)日：2015-06-04
申请号：US14407592
申请日：2013-07-12
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Ryan Arya Pratama
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。 风力涡轮机包括具有至少一个具有可变俯仰角的叶片的涡轮转子，发电机和经由第一断路器连接到发电机的功率转换器，以及经由第二断路器连接到电网的电力转换器。 根据该方法，监测电网过电压事件。 如果检测到过电压事件，则该方法包括打开第一断路器和第二断路器，禁用功率转换器的主动操作，将功率消耗单元连接到功率发生器，以耗散从发电机输出的功率，并移动 所述至少一个叶片的俯仰角朝向羽状位置。
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公开(公告)号：US09556853B2
公开(公告)日：2017-01-31
申请号：US14765938
申请日：2013-02-15
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Manoj Gupta , Dilip Kumar Guru , Amit Kumar Gupta
IPC: F03D9/00 , H02H3/00 , H02H7/093 , H02H3/02 , H02J3/38 , H02H3/08 , H01H71/10 , G05B23/02 , H01H81/00 , H02J3/16 , F03D7/02 , H02J3/18 , H02P9/00 , H02H7/30
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。
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Patent Agency Ranking
公开(公告)号：US20140312622A1
公开(公告)日：2014-10-23
申请号：US14362052
申请日：2012-12-21
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Hock Heng Thia , Duy Duc Doan , Gert Karmisholt Andersen
IPC: F03D9/00
CPC classification number: F03D7/0264 , F03D9/255 , H02J3/386 , H02P9/08 , H02P29/024 , H02P29/0241 , Y02E10/723 , Y02E10/763
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。 功率转换器包括发生器侧转换器，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从DC链路消散能量。
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公开(公告)号：US10158230B2
公开(公告)日：2018-12-18
申请号：US14899694
申请日：2013-06-18
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Manoj Gupta , Dilip Kumar Guru
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.
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公开(公告)号：US09593667B2
公开(公告)日：2017-03-14
申请号：US14366837
申请日：2012-12-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Manoj Gupta
IPC: F03D7/00 , F03D9/00 , H02J3/38 , H02M5/458 , H02P101/15
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，由门控信号操作的多个电力转换器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。
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公开(公告)号：US20140339830A1
公开(公告)日：2014-11-20
申请号：US14366837
申请日：2012-12-20
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , Manoj Gupta
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。
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公开(公告)号：US10598701B2
公开(公告)日：2020-03-24
申请号：US15645729
申请日：2017-07-10
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Amit Kumar Gupta , John Godsk Nielsen , Liang Yang
IPC: F03D9/00 , H02P9/04 , G01R19/165 , F03D9/25 , F03D7/02 , F03D7/04 , H02J3/26 , H02J3/38 , F03D7/00 , G01R19/10 , H02K7/18 , H02J3/00
Abstract: A method for operating a power generation system coupled to a power grid during a grid unbalance event, a method for determining an injection current to be supplied into a power grid by a power generation system, and a method for addressing an asymmetric grid fault in a power grid connected to a power generation system are provided. The methods may be carried out based on a reactive or an active power/current priority.
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