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1. 发明申请

US20150022007A1 WIND TURBINE GENERATOR CONTROLLER RESPONSIVE TO GRID FREQUENCY CHANGE 有权
标题翻译：风力发电机控制器响应变频器频率变化
公开(公告)号：US20150022007A1
公开(公告)日：2015-01-22
申请号：US13942972
申请日：2013-07-16
申请人： Hongtao Ma , Robert J. Nelson , Najlae M. Yazghi , William F. Clark
发明人： Hongtao Ma , Robert J. Nelson , Najlae M. Yazghi , William F. Clark
IPC分类号： H02J3/40
CPC分类号： H02J3/386 , H02J3/24 , Y02E10/763 , Y10T307/718
摘要： A wind turbine generator park (1) for supplying power to a power system (37), the park having an assigned first droop response characteristic for use in responding to an under-frequency occurrence on the power system (37). The park comprises a first comparator (108) for generating a first signal when the park is operating according to a curtailed condition, a second comparator (100) for indicating that a change in a frequency of a voltage or current on the power system (37) is greater than a first threshold value, and a controller (114) responsive to the first and second signals for controlling the park according to a second response characteristic causing the park (1) to supply an amount of power to the power system (37) greater than the power supplied according to the first droop response characteristic.
摘要翻译： 1.一种用于向电力系统（37）供电的风力发电机组（1），所述公园具有分配的第一下降响应特性，用于响应电力系统（37）上的频率不足情况。公园包括第一比较器（108），用于当停车场根据限制条件操作时产生第一信号;第二比较器（100），用于指示电力系统（37）上的电压或电流频率的变化）大于第一阈值，以及响应于第一和第二信号的控制器（114），用于根据第二响应特性来控制驻车，从而使停车场（1）向电力系统（37）提供一定的功率）大于根据第一下垂响应特性提供的功率。

2. 发明授权

US08823193B1 Method and system for limitation of power output variation in variable generation renewable facilities 有权
标题翻译：可变发电再生设备功率输出变化的限制方法和系统
公开(公告)号：US08823193B1
公开(公告)日：2014-09-02
申请号：US13903305
申请日：2013-05-28
申请人： Najlae M Yazghi , Robert J. Nelson , Hongtao Ma , William F. Clark
发明人： Najlae M Yazghi , Robert J. Nelson , Hongtao Ma , William F. Clark
IPC分类号： F03D9/00
CPC分类号： H02J3/386 , F03D7/028 , F03D7/048 , F05B2270/309 , F05B2270/335 , H02J3/48 , H02P9/00 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y10T307/50
摘要： A method and system for controlling the output power from a renewable energy installation (10) to a utility grid (56) having a predetermined bound for a variation in output power per unit of time is provided. The method and system includes constraining an output signal of a controller (76) to an upper and/or lower limit via a limiter (78), wherein the upper and/or lower limit comprises a predetermined upper and/or lower bound for a variation in output power per unit of time. The constrained output signal is then applied to the plurality of electricity generators (12, 14, 16) to limit the variation in output power per unit of time according to the predetermined bound.
摘要翻译：提供了一种用于控制从可再生能源设施（10）到具有每单位时间的输出功率变化的预定界限的公用电网（56）的输出功率的方法和系统。该方法和系统包括通过限制器（78）将控制器（76）的输出信号约束到上限和/或下限，其中上限和/或下限包括用于变化的预定上限和/或下限在每单位时间的输出功率。然后，约束的输出信号被施加到多个发电机（12,14,16），以根据预定界限来限制每单位时间的输出功率的变化。

3. 发明申请

US20150159627A1 CONTROLLING WIND POWER PLANT WITH NEGATIVE POWER CAPABILITY TO RESPOND TO GRID FREQUENCY INSTABILITY 有权
标题翻译：控制具有负面能力的风力发电厂，以应对电网频率不稳定性
公开(公告)号：US20150159627A1
公开(公告)日：2015-06-11
申请号：US14100112
申请日：2013-12-09
申请人： Kaj Skov Nielsen , Robert J. Nelson , Hongtao Ma
发明人： Kaj Skov Nielsen , Robert J. Nelson , Hongtao Ma
IPC分类号： F03D7/06
CPC分类号： F03D7/0284 , F03D7/042 , F03D7/048 , F03D7/06 , F03D9/10 , F03D9/255 , F03D80/60 , F05B2270/1033 , F05B2270/335 , F05B2270/337 , H02J3/24 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766
摘要： A method of controlling a wind power plant, the wind power plant having a plurality of wind turbines and being connected to a power grid is provided. The method includes (a) detecting a grid frequency instability, (b) selecting a subset of wind turbines, (c) modifying a power reference for each wind turbine in the selected subset of wind turbines to respond to the grid frequency instability, and (d) applying the modified power references to the corresponding wind turbines in the selected subset of wind turbines. A wind power plant controller, a wind power plant, a computer program, and a computer program product are also provided.
摘要翻译：提供了一种控制风力发电厂的方法，具有多个风力涡轮机并连接到电网的风力发电厂。该方法包括（a）检测电网频率不稳定性，（b）选择风力涡轮机的子集，（c）修改所选择的风力涡轮机子集中的每个风力涡轮机的功率参考以响应电网频率不稳定性，以及（ d）将经修改的功率参考应用于所选择的风力涡轮机的子集中的对应的风力涡轮机。还提供了风力发电厂控制器，风力发电厂，计算机程序和计算机程序产品。

4. 发明申请

US20140021720A1 METHOD AND APPARATUS FOR ADAPTIVELY CONTROLLING WIND PARK TURBINES 有权
标题翻译：用于适应风电公园涡轮机的方法和装置
公开(公告)号：US20140021720A1
公开(公告)日：2014-01-23
申请号：US13550699
申请日：2012-07-17
申请人： Robert J. Nelson , Hongtao Ma
发明人： Robert J. Nelson , Hongtao Ma
IPC分类号： H02P9/04
CPC分类号： H02J3/16 , G06F19/00 , H02J3/38 , H02J3/386 , H02P9/007 , H03H1/00 , Y02E10/763 , Y02E40/34
摘要： A wind turbine park (242) connected to a transmission system (234). The wind turbine park includes a component (230) for determining a short circuit ratio and based thereon for determining a parameter adjustment recipe, and a controller (238) for controlling an output of the wind turbine park, the controller (238) executing a control algorithm using a determined parameter adjustment recipe, the determined parameter adjustment recipe responsive to the short circuit ratio and determined within the component (230) or within the controller (238).
摘要翻译：连接到传动系统（234）的风力涡轮机园区（242）。风力涡轮机园区包括用于确定短路比的部件（230），并且用于确定参数调整配方，以及用于控制风力涡轮机停机输出的控制器（238），控制器（238）执行控制算法，使用确定的参数调整配方，所确定的参数调整配方响应于短路比并且在组件（230）内或控制器（238）内确定。

5. 发明申请

US20120019007A1 METHOD AND APPARATUS FOR MINIMIZING HARMONIC CURRENTS IN A WIND TURBINE PARK 审中-公开
标题翻译：用于最小化风力涡轮公园中的谐波电流的方法和装置
公开(公告)号：US20120019007A1
公开(公告)日：2012-01-26
申请号：US12840398
申请日：2010-07-21
申请人： Robert J. Nelson , Hongtao Ma
发明人： Robert J. Nelson , Hongtao Ma
IPC分类号： H02P9/04 , H02J3/00
CPC分类号： H02J3/386 , H02J3/01 , H02M2003/1586 , Y02E10/763 , Y02E40/40 , Y10T307/713
摘要： A collector system (49) for supplying electrical energy to a grid (50). The collector system (49) comprises a plurality of voltage sources (46/48/66/68) each producing a fundamental frequency current and a plurality of harmonic frequency currents related to the fundamental frequency, wherein one or more of the plurality of fundamental frequency currents have a time displacement relative to a current on the collector system (49), each one of the plurality of voltage sources (46/48/66/68) connected to the collector system (49) through a transformer (51/52/70), certain ones of the transformers (51/52/70) imparting a phase angle shift to compensate for the time displacement of the fundamental frequency current produced by each voltage source (46/48/66/68), and wherein the time displacement and the phase angle shifts are selected to reduce harmonic currents on the collector system (49).
摘要翻译：一种用于向电网（50）提供电能的收集器系统（49）。收集器系统（49）包括多个电压源（46/48/66/68），每个电压源产生基频电流和与基频相关的多个谐波频率电流，其中多个基频中的一个或多个电流相对于集电器系统（49）上的电流具有时间位移，多个电压源（46/48/66/68）中的每一个通过变压器（51/52/66/68）连接到集电器系统（49） 70），变压器（51/52/70）中的某些变压器（51/52/70）赋予相位角偏移以补偿由每个电压源（46/48/66/68）产生的基频电流的时间位移，并且其中时间选择位移并且选择相位偏移以减少收集器系统（49）上的谐波电流。

6. 发明申请

US20110012352A1 Bang-Bang Controller and Control Method For Variable Speed Wind Turbines During Abnormal Frequency Conditions 有权
标题翻译： Bang-Bang控制器和异常频率条件下变速风力发电机的控制方法
公开(公告)号：US20110012352A1
公开(公告)日：2011-01-20
申请号：US12502295
申请日：2009-07-14
申请人： Robert J. Nelson , John D. Amos , Hongtao Ma
发明人： Robert J. Nelson , John D. Amos , Hongtao Ma
IPC分类号： H02P9/00
CPC分类号： F03D7/043 , F03D7/0272 , F03D7/0284 , F03D7/048 , F05B2270/337 , Y02E10/723 , Y02E10/725
摘要： A wind farm (10) may include a plurality of variable speed wind turbines (12, 14, 16). A centralized controller (50) may be configured to selectively adjust a respective electrical output power from each of the wind turbines at least during an underfrequency condition. The controller may include a monitor (52) configured to monitor a grid frequency value relative to at least a first threshold value. A deviation of the grid frequency value beyond the first threshold value is indicative of the underfrequency condition. The controller further includes a control unit (54) configured to effect a step response to the electrical output power of the wind turbine in a direction selected to counteract the underfrequency condition.
摘要翻译：风力发电场（10）可以包括多个变速风力涡轮机（12,14,16）。集中控制器（50）可以被配置为至少在低频条件期间选择性地调整来自每个风力涡轮机的相应的电力输出功率。控制器可以包括被配置为相对于至少第一阈值监视电网频率值的监视器（52）。电网频率值超过第一阈值的偏差表示低频条件。该控制器还包括一个控制单元（54），该控制单元（54）被配置为在被选择为抵消低频条件的方向上对风力涡轮机的电力输出功率产生阶跃响应。

7. 发明授权

US09458828B2 Controlling wind power plant with negative power capability to respond to grid frequency instability 有权
标题翻译：控制具有负电力能力的风力发电厂，以应对电网频率不稳定
公开(公告)号：US09458828B2
公开(公告)日：2016-10-04
申请号：US14100112
申请日：2013-12-09
申请人： Kaj Skov Nielsen , Robert J. Nelson , Hongtao Ma
发明人： Kaj Skov Nielsen , Robert J. Nelson , Hongtao Ma
IPC分类号： F03D7/02 , F03D7/06 , F03D7/04 , H02J3/24 , H02J3/38
CPC分类号： F03D7/0284 , F03D7/042 , F03D7/048 , F03D7/06 , F03D9/10 , F03D9/255 , F03D80/60 , F05B2270/1033 , F05B2270/335 , F05B2270/337 , H02J3/24 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766
摘要： A method of controlling a wind power plant, the wind power plant having a plurality of wind turbines and being connected to a power grid is provided. The method includes (a) detecting a grid frequency instability, (b) selecting a subset of wind turbines, (c) modifying a power reference for each wind turbine in the selected subset of wind turbines to respond to the grid frequency instability, and (d) applying the modified power references to the corresponding wind turbines in the selected subset of wind turbines. A wind power plant controller, a wind power plant, a computer program, and a computer program product are also provided.
摘要翻译：提供了一种控制风力发电厂的方法，具有多个风力涡轮机并连接到电网的风力发电厂。该方法包括（a）检测电网频率不稳定性，（b）选择风力涡轮机的子集，（c）修改所选择的风力涡轮机子集中的每个风力涡轮机的功率参考以响应电网频率不稳定性，以及（ d）将经修改的功率参考应用于所选择的风力涡轮机的子集中的对应的风力涡轮机。还提供了风力发电厂控制器，风力发电厂，计算机程序和计算机程序产品。

8. 发明授权

US09190845B2 Method and apparatus for adaptively controlling wind park turbines 有权
标题翻译：自适应控制风电场风力发电机的方法和装置
公开(公告)号：US09190845B2
公开(公告)日：2015-11-17
申请号：US13550699
申请日：2012-07-17
申请人： Robert J. Nelson , Hongtao Ma
发明人： Robert J. Nelson , Hongtao Ma
IPC分类号： H02J1/00 , H02J3/00 , H02J3/16 , H02J3/38 , H03H1/00 , G06F19/00
CPC分类号： H02J3/16 , G06F19/00 , H02J3/38 , H02J3/386 , H02P9/007 , H03H1/00 , Y02E10/763 , Y02E40/34
摘要： A wind turbine park (242) connected to a transmission system (234). The wind turbine park includes a component (230) for determining a short circuit ratio and based thereon for determining a parameter adjustment recipe, and a controller (238) for controlling an output of the wind turbine park, the controller (238) executing a control algorithm using a determined parameter adjustment recipe, the determined parameter adjustment recipe responsive to the short circuit ratio and determined within the component (230) or within the controller (238).
摘要翻译：连接到传动系统（234）的风力涡轮机园区（242）。风力涡轮机园区包括用于确定短路比的部件（230），并且用于确定参数调整配方，以及用于控制风力涡轮机停机输出的控制器（238），控制器（238）执行控制算法，使用确定的参数调整配方，所确定的参数调整配方响应于短路比并且在组件（230）内或控制器（238）内确定。

9. 发明申请

US20150042092A1 ISOCHRONOUS WIND TURBINE GENERATOR CAPABLE OF STAND-ALONE OPERATION 有权
标题翻译：独立的风力发电机可独立运行
公开(公告)号：US20150042092A1
公开(公告)日：2015-02-12
申请号：US13960875
申请日：2013-08-07
申请人： Robert J. Nelson , Jesper Hammelsvang , Hongtao Ma , Jakob Skjoeth
发明人： Robert J. Nelson , Jesper Hammelsvang , Hongtao Ma , Jakob Skjoeth
IPC分类号： F03D9/00 , F03D7/04
CPC分类号： F03D9/257 , F03D7/048 , H02J3/386 , H02J3/40 , H02M1/12 , H02M5/42 , H02M5/45 , H02M7/44 , Y02E10/723 , Y02E10/763
摘要： A power generating device (2, 3) for supplying power to a power system (37). The power generating device includes a first component (87) for generating a first signal representing a frequency of a voltage on the power system, a power converter (90) for generating an output voltage, a second component (82) responsive to the first signal and to a second signal representing the output voltage, the second component producing an error signal representing a phase angle difference between the first and second signals, and the error signal being an input to the power converter for controlling the power converter to maintain the phase angle difference between the output voltage and the first signal.
摘要翻译：一种用于向电力系统（37）供电的发电装置（2,3）。发电装置包括用于产生表示电力系统上的电压的频率的第一信号的第一组件（87），用于产生输出电压的功率转换器（90），响应于第一信号的第二组件（82）以及表示所述输出电压的第二信号，所述第二分量产生表示所述第一和第二信号之间的相位角差的误差信号，所述误差信号是所述功率转换器的输入，用于控制所述功率转换器以保持所述相位角输出电压与第一个信号之间的差值。

10. 发明申请

US20130027994A1 Method and system for damping subsynchronous resonant oscillations in a power system using a wind turbine 审中-公开
标题翻译：用于减轻使用风力涡轮机的电力系统中的次同步谐振振荡的方法和系统
公开(公告)号：US20130027994A1
公开(公告)日：2013-01-31
申请号：US13577672
申请日：2011-03-08
申请人： Robert J. Nelson , Hongtao Ma
发明人： Robert J. Nelson , Hongtao Ma
IPC分类号： H02M1/12
CPC分类号： H02P9/105 , H02J3/24 , H02P2101/15
摘要： A wind turbine controlled to damp subsynchronous resonance oscillations on a grid is provided. The wind turbine includes rotor blades for turning by the wind, an electric generator rotatably coupled to the rotor blades, a power converter responsive to electricity generated by the electric generator, the power converter for converting the generated electricity to a frequency and voltage suitable for supply to the power grid, and the power converter for regulating voltage on the grid for damping the subsynchronous oscillations. Additionally, in one embodiment voltage regulation is supplemented by modulating real power to damp the subsynchronous oscillations.
摘要翻译：提供了控制以减轻电网上次同步谐振的风力涡轮机。风力涡轮机包括用于转动风力的转子叶片，可旋转地联接到转子叶片的发电机，响应于由发电机产生的电力的功率转换器，用于将发电转换成适于供给的频率和电压的功率转换器到电网，以及用于调节电网电压的功率转换器，用于阻尼次同步振荡。此外，在一个实施例中，通过调制实际功率来补偿次同步振荡来补充电压调节。

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