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1. 发明申请

WO2012146250A3 A VARIABLE WIND TURBINE HAVING A POWER DISSIPATING UNIT; A METHOD OF OPERATING A POWER DISSIPATING UNIT IN A WIND TURBINE 审中-公开
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
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , ANDERSEN, Gert Karmisholt , FONN, Swee Yee , LI, Bing
发明人： GUPTA, Amit Kumar , ANDERSEN, Gert Karmisholt , FONN, Swee Yee , LI, Bing
IPC分类号： H02P9/00 , H02P9/10 , F03D9/00 , H02P3/22 , F03D7/02
摘要： 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.

2. 发明申请

WO2012062327A2 METHOD FOR OPERATING A POWER GENERATION SYSTEM 审中-公开
标题翻译：一种发电系统的运行方法
公开(公告)号：WO2012062327A2
公开(公告)日：2012-05-18
申请号：PCT/DK2011/050425
申请日：2011-11-10
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , NIELSEN, John Godsk , YANG, Liang
发明人： GUPTA, Amit Kumar , NIELSEN, John Godsk , YANG, Liang
IPC分类号： F03D9/00
CPC分类号： G01R19/16533 , F03D7/00 , F03D7/0284 , F03D7/042 , F03D9/255 , F03D9/257 , F05B2270/337 , G01R19/10 , H02J3/26 , H02J3/386 , H02J2003/001 , H02K7/183 , H02P9/04 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/50
摘要： 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. For reactive power/current priority, a positive sequence reactive current and a negative sequence reactive current may be first determined. The positive sequence reactive current and the negative sequence reactive current may be adjusted, and a positive sequence active current and a negative sequence active current may be determined such that a maximum current limit, a maximum allowed active power ripple and a maximum grid side converter voltage are not exceeded. For active power/current priority, a positive sequence active current and a negative sequence active current may be first determined. A positive sequence reactive current and a negative sequence reactive current may then be determined based on the positive sequence active current and the negative sequence active current. The positive sequence active current, the negative sequence active current, the positive sequence reactive current and the negative sequence reactive current may be determined such that a maximum current limit, a maximum allowed active power ripple and a maximum grid side converter voltage are not exceeded.
摘要翻译：一种用于在电网不平衡事件期间操作耦合到电网的发电系统的方法，用于确定由发电系统供应到电网中的注入电流的方法，以及用于解决电力系统中不对称电网故障的方法提供连接到发电系统的电网。这些方法可以基于无功或有功功率/电流优先级进行。对于无功功率/电流优先级，可以首先确定正序无功电流和负序无功电流。可以调整正序无功电流和负序无功电流，并且可以确定正序有功电流和负序有功电流，使得最大电流限制，最大允许有功功率纹波和最大电网侧转换器电压不超过对于有功功率/电流优先级，可以首先确定正序有功电流和负序有功电流。然后可以基于正序有功电流和负序有功电流来确定正序无功电流和负序无功电流。可以确定正序有功电流，负序有功电流，正序无功电流和负序无功电流，使得不超过最大电流限制，最大允许有功功率纹波和最大电网侧转换器电压。

3. 发明申请

WO2013044918A2 A HARMONIC FILTER ARRANGEMENT 审中-公开
标题翻译：谐波滤波器安排
公开(公告)号：WO2013044918A2
公开(公告)日：2013-04-04
申请号：PCT/DK2012/050316
申请日：2012-08-29
申请人： VESTAS WIND SYSTEMS A/S , POPESCU, Nicolae , TRIPATHI, Anshuman , GUPTA, Amit Kumar
发明人： POPESCU, Nicolae , TRIPATHI, Anshuman , GUPTA, Amit Kumar
CPC分类号： H02J3/01 , H02J3/386 , H02M1/126 , Y02E10/763 , Y02E40/40
摘要： A harmonic filter arrangement suitable for use in a wind turbine is provided. The harmonic filter arrangement comprises a first filter arrangement, and a second filter arrangement. The first filter arrangement comprises at least an inductor, and the second filter arrangement comprises at least an inductor and a capacitor. The inductor of the first filter arrangement comprises a first winding around a magnetic core, and the inductor of the second filter arrangement comprises a second winding around the first winding.
摘要翻译：提供了适用于风力涡轮机的谐波滤波器装置。谐波滤波器装置包括第一滤波器装置和第二滤波器装置。第一滤波器装置至少包括电感器，第二滤波器装置至少包括电感器和电容器。第一滤波器装置的电感器包括围绕磁芯的第一绕组，并且第二滤波器装置的电感器包括围绕第一绕组的第二绕组。

4. 发明申请

WO2012062323A2 METHOD AND SYSTEM FOR OPERATING A WIND TURBINE 审中-公开
标题翻译：用于运行风力涡轮机的方法和系统
公开(公告)号：WO2012062323A2
公开(公告)日：2012-05-18
申请号：PCT/DK2011/050421
申请日：2011-11-08
申请人： VESTAS WIND SYSTEMS A/S , TEODORESCU, Remus , RODRIGUEZ, Pedro , ALLOZA, Alvaro Luna , GUPTA, Amit Kumar
发明人： TEODORESCU, Remus , RODRIGUEZ, Pedro , ALLOZA, Alvaro Luna , GUPTA, Amit Kumar
IPC分类号： F03D9/00
CPC分类号： G01R19/16533 , F03D7/00 , F03D7/0284 , F03D7/042 , F03D9/255 , F03D9/257 , F05B2270/337 , G01R19/10 , H02J3/26 , H02J3/386 , H02J2003/001 , H02K7/183 , H02P9/04 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/50
摘要： A method for operating a wind turbine and a system for operating a wind turbine are provided. The wind turbine includes a grid side converter and the grid side converter is coupled to a grid via a power line. The method includes determining a wind turbine operation strategy; determining a first active power reference and a first reactive power reference indicating a requested amount of active power and reactive power, respectively, depending on at least the wind turbine operation strategy; measuring a grid voltage of the grid; determining a positive sequence component and a negative sequence component of the grid voltage i.e. a positive sequence voltage and a negative sequence voltage; determining a second active power reference and a second reactive power reference indicating an actual amount of active power and reactive power to be supplied by the grid side converter to the grid, respectively, depending on at least the first active power reference, the first reactive power reference, and the wind turbine operation strategy; generating, based on at least the wind turbine operation strategy, a first parameter and a second parameter which define a proportion of positive sequence current component and negative sequence current component to be injected by the grid side converter in order to supply active power and reactive power in accordance with the second active power reference and the second reactive power reference; generating a current reference based on at least the second active power reference, the second reactive power reference, the positive sequence voltage, the negative sequence voltage, the first parameter, and the 77 second parameter; and supplying, with the grid side converter, active and reactive power to the power line based on the current reference.
摘要翻译：提供了一种用于操作风力涡轮机的方法和一种用于操作风力涡轮机的系统。风力涡轮机包括电网侧转换器并且电网侧转换器经由电力线耦合到电网。该方法包括确定风力涡轮机操作策略; 至少取决于风力涡轮机操作策略，确定分别指示所请求的有功功率和无功功率量的第一有功功率基准和第一无功功率基准; 测量电网的电网电压; 确定电网电压的正序分量和负序分量，即正序电压和负序电压; 根据至少第一有功功率参考值，确定第二有功功率参考值和第二无功功率参考值，所述第二无功功率参考值指示要由电网侧转换器分别向电网供应的有功功率和无功功率的实际量，参考，以及风机运行策略; 至少基于风力涡轮机操作策略生成第一参数和第二参数，该第一参数和第二参数定义由电网侧变流器注入的正序电流分量和负序电流分量的比例，以便提供有功功率和无功功率根据所述第二有功功率基准和所述第二无功功率基准; 至少基于所述第二有功功率参考，所述第二无功功率参考，所述正序电压，所述负序电压，所述第一参数以及所述第七参数来生成电流参考; 并且利用电网侧转换器基于电流基准向电力线提供有功功率和无功功率。

5. 发明申请

WO2012083963A1 A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE 审中-公开
标题翻译：一种风力涡轮机的操作方法，作为其中适合的系统
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
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , TRIPATHI, Anshuman
发明人： GUPTA, Amit Kumar , TRIPATHI, Anshuman
IPC分类号： F03D1/00 , H02M5/458 , H02M7/06 , H02M1/32
CPC分类号： F03D9/255 , H02J3/386 , Y02E10/763
摘要： 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.
摘要翻译：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。

6. 发明申请

WO2012022353A2 METHOD OF CONTROLLING A GRID SIDE CONVERTER OF A WIND TURBINE AND SYSTEM SUITABLE THEREFORE 审中-公开
标题翻译：控制风力发电机组的三轮转换器及其适用的系统的方法
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
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , ANSHUMAN, Tripathi , CAO, Shu Yu
发明人： GUPTA, Amit Kumar , ANSHUMAN, Tripathi , CAO, Shu Yu
IPC分类号： H02J3/00
CPC分类号： H02M7/539 , H02J3/386 , H02M7/483 , H02M7/53875 , H02P9/00 , H02P2101/15 , Y02E10/763
摘要： 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.
摘要翻译：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。

7. 发明申请

WO2011019321A3 A VARIABLE SPEED WIND TURBINE, AND A METHOD FOR OPERATING THE VARIABLE SPEED WIND TURBINE DURING A POWER IMBALANCE EVENT 审中-公开
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
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , OPINA, Gil Jr Lampong , TRIPATHI, Anshuman , KARUPPANAN, Yugarajan , TUMABCAO, Michael Casem
发明人： GUPTA, Amit Kumar , OPINA, Gil Jr Lampong , TRIPATHI, Anshuman , KARUPPANAN, Yugarajan , TUMABCAO, Michael Casem
IPC分类号： F03D7/00 , F03D9/02
摘要： 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.

8. 发明申请

WO2013013678A3 A POWER DISSIPATING ARRANGEMENT IN A WIND TURBINE 审中-公开
公开(公告)号：WO2013013678A3
公开(公告)日：2013-01-31
申请号：PCT/DK2012/050278
申请日：2012-07-24
申请人： VESTAS WIND SYSTEMS A/S , STYHM, Ove , TRIPATHI, Anshuman , GUPTA, Amit Kumar
发明人： STYHM, Ove , TRIPATHI, Anshuman , GUPTA, Amit Kumar
IPC分类号： H02P3/22 , H02P9/00
摘要： 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.

9. 发明申请

WO2012076015A2 A METHOD OF OPERATING A WIND TURBINE AS WELL AS A SYSTEM SUITABLE THEREFORE 审中-公开
标题翻译：一种风力涡轮机的运行方法，作为适用于此的系统
公开(公告)号：WO2012076015A2
公开(公告)日：2012-06-14
申请号：PCT/DK2011/050465
申请日：2011-12-07
申请人： VESTAS WIND SYSTEMS A/S , GUPTA, Amit Kumar , TRIPATHI, Anshuman , STYHM, Ove , HELLE, Lars , KARUPPANAN, Yugarajan , OPINA, Gil Jr Lampong
发明人： GUPTA, Amit Kumar , TRIPATHI, Anshuman , STYHM, Ove , HELLE, Lars , KARUPPANAN, Yugarajan , OPINA, Gil Jr Lampong
IPC分类号： F03D1/00
CPC分类号： F03D7/0264 , F03D9/255 , H02J3/386 , Y02E10/72 , Y02E10/763
摘要： According to an embodiment of the present invention, a method of operating a wind turbine including a power generator, a generator/machine side converter connected to the power generator, a grid/line side converter connected to a power grid through power components, and a DC-link connected between the machine side converter and the line side converter, comprises: Monitoring the power grid for overvoltage events; if an overvoltage event is detected disabling active operation of the machine side converter and of the line side converter, enabling an AC- load dump connected between the machine side converter and the power generator in order to dissipate active power output by the power generator into the AC-load dump, waiting for a waiting period, and enabling active operation of the line side converter and the machine side converter if the overvoltage ends within the waiting period.
摘要翻译：根据本发明的实施例，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/机器侧转换器，通过功率部件连接到电网的电网/线路侧转换器，以及连接在机器侧转换器和线路侧转换器之间的直流母线包括：监控电网的过压事件; 如果检测到过电压事件禁止机器侧转换器和线路侧转换器的主动操作，则能够连接在机器侧转换器和发电机之间的AC负载转储器，以将发电机的有功功率输出消耗到交流负载突降，等待等待期，如果过电压在等待期结束，则启用线路侧转换器和机侧转换器的有效工作。

10. 发明申请

WO2013097867A2 A WIND TURBINE AND A METHOD OF OPERATING THEREOF 审中-公开
标题翻译：风力涡轮机及其运行方法
公开(公告)号：WO2013097867A2
公开(公告)日：2013-07-04
申请号：PCT/DK2012/050503
申请日：2012-12-21
申请人： VESTAS WIND SYSTEMS A/S
发明人： GUPTA, Amit Kumar , THIA, Hock Heng , DOAN, Duy Duc , ANDERSEN, Gert Karmisholt
CPC分类号： F03D7/0264 , F03D9/255 , H02J3/386 , H02P9/08 , H02P29/024 , H02P29/0241 , Y02E10/723 , Y02E10/763
摘要： 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.
摘要翻译：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。

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