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1. 发明申请

US20060004531A1 METHOD AND APPARATUS FOR ANTI-ISLANDING PROTECTION OF DISTRIBUTED GENERATIONS 有权
标题翻译：用于分布式生成的防止岛屿保护的方法和装置
公开(公告)号：US20060004531A1
公开(公告)日：2006-01-05
申请号：US10677559
申请日：2003-10-01
申请人： Zhihong Ye , Vinod John , Changyong Wang , Luis Garces , Rui Zhou , Lei Li , Reigh Walling , William Premerlani , Peter Sanza , Yan Liu , Mark Dame
发明人： Zhihong Ye , Vinod John , Changyong Wang , Luis Garces , Rui Zhou , Lei Li , Reigh Walling , William Premerlani , Peter Sanza , Yan Liu , Mark Dame
IPC分类号： G01R21/00
CPC分类号： G01R19/2513 , H02J3/383 , H02J2003/388 , Y02E10/563 , Y10T307/398 , Y10T307/511
摘要： An apparatus for anti-islanding protection of a distributed generation with respect to a feeder connected to an electrical grid is disclosed. The apparatus includes a sensor adapted to generate a voltage signal representative of an output voltage and/or a current signal representative of an output current at the distributed generation, and a controller responsive to the signals from the sensor. The controller is productive of a control signal directed to the distributed generation to drive an operating characteristic of the distributed generation out of a nominal range in response to the electrical grid being disconnected from the feeder.
摘要翻译：公开了一种用于相对于连接到电网的馈线的分布式发电的防孤岛保护的装置。该装置包括适于产生代表输出电压的电压信号和/或表示分布式发电时的输出电流的电流信号的传感器，以及响应于来自传感器的信号的控制器。所述控制器响应于所述电网与所述馈线断开而产生指向所述分布式发电的控制信号以驱动所述分布式发电的工作特性在标称范围之外。

2. 发明申请

US20060082936A1 Anti-islanding protection systems for synchronous machine based distributed generators 失效
标题翻译：基于同步机的分布式发电机防孤岛保护系统
公开(公告)号：US20060082936A1
公开(公告)日：2006-04-20
申请号：US10966665
申请日：2004-10-15
申请人： Zhihong Ye , Pengwei Du , John Nelson , Nicholas Miller , Reigh Walling
发明人： Zhihong Ye , Pengwei Du , John Nelson , Nicholas Miller , Reigh Walling
IPC分类号： H02H7/04
CPC分类号： H02J3/38 , H02J2003/388 , Y10T307/406 , Y10T307/414
摘要： A system for providing anti-islanding protection of a synchronous machine based distributed generator includes a frequency sensor configured to generate a generator frequency signal, a bandpass filter configured for filtering the generator frequency signal, a governor controller configured for using the filtered frequency signal to generate a power feedback signal, and a governor summation element configured for summing the filtered frequency signal, the power feedback signal, and a reference power to provide an electrical torque signal. Another system includes a voltage sensor configured to generate a generator terminal voltage signal, a feedback power calculator configured for generating a reactive feedback power signal, a bandpass filter configured for filtering the terminal voltage signal, and a PI controller summation element configured for summing the filtered terminal voltage signal, the reactive power feedback signal, and a reference reactive power to provide an error signal.
摘要翻译：一种用于提供基于同步电机的分布式发电机的防孤岛保护的系统，包括配置成产生发电机频率信号的频率传感器，被配置用于滤波发生器频率信号的带通滤波器;配置成使用滤波后的频率信号产生功率反馈信号和调节器求和元件，其被配置用于对滤波的频率信号，功率反馈信号和参考功率求和，以提供电力转矩信号。另一系统包括被配置为产生发电机端电压信号的电压传感器，被配置为产生无功反馈功率信号的反馈功率计算器，被配置用于滤波端电压信号的带通滤波器，和被配置为对滤波后的滤波器进行求和的PI控制器求和元件端子电压信号，无功功率反馈信号和参考无功功率以提供误差信号。

3. 发明申请

US20070126428A1 ANTI-ISLANDING PROTECTION SYSTEMS FOR SYNCHRONOUS MACHINE BASED DISTRIBUTED GENERATORS 失效
标题翻译：基于同步机的分布式发电机防空保护系统
公开(公告)号：US20070126428A1
公开(公告)日：2007-06-07
申请号：US11670067
申请日：2007-02-01
申请人： Zhihong Ye , Pengwei Du , John Nelson , Nicholas Miller , Reigh Walling
发明人： Zhihong Ye , Pengwei Du , John Nelson , Nicholas Miller , Reigh Walling
IPC分类号： G01R31/08
CPC分类号： H02J3/38 , H02J2003/388 , Y10T307/406 , Y10T307/414
摘要： A system for providing anti-islanding protection of a synchronous machine based distributed generator includes a frequency sensor configured to generate a generator frequency signal, a bandpass filter configured for filtering the generator frequency signal, a governor controller configured for using the filtered frequency signal to generate a power feedback signal, and a governor summation element configured for summing the filtered frequency signal, the power feedback signal, and a reference power to provide an electrical torque signal. Another system includes a voltage sensor configured to generate a generator terminal voltage signal, a feedback power calculator configured for generating a reactive feedback power signal, a bandpass filter configured for filtering the terminal voltage signal, and a PI controller summation element configured for summing the filtered terminal voltage signal, the reactive power feedback signal, and a reference reactive power to provide an error signal.
摘要翻译：一种用于提供基于同步电机的分布式发电机的防孤岛保护的系统，包括配置成产生发电机频率信号的频率传感器，被配置用于滤波发生器频率信号的带通滤波器;配置成使用滤波后的频率信号产生功率反馈信号和调节器求和元件，其被配置用于对滤波的频率信号，功率反馈信号和参考功率求和，以提供电力转矩信号。另一系统包括被配置为产生发电机端电压信号的电压传感器，被配置为产生无功反馈功率信号的反馈功率计算器，被配置用于滤波端电压信号的带通滤波器，和被配置为对滤波后的滤波器进行求和的PI控制器求和元件端子电压信号，无功功率反馈信号和参考无功功率以提供误差信号。

4. 发明申请

US20070290506A1 METHODS AND APPARATUS FOR SUPPLYING AND/OR ABSORBING REACTIVE POWER 有权
标题翻译：供应和/或吸收反应动力的方法和装置
公开(公告)号：US20070290506A1
公开(公告)日：2007-12-20
申请号：US11424989
申请日：2006-06-19
申请人： Reigh Walling
发明人： Reigh Walling
IPC分类号： F03D9/00 , H02P9/04
CPC分类号： H02J3/16 , H02J3/386 , H02J3/50 , Y02E10/763 , Y02E40/34
摘要： A wind turbine includes a rotor having a hub, at least one rotor blade coupled to the hub, and a rotor shaft coupled to said hub for rotation therewith. The wind turbine also includes an electrical generator coupled to the rotor shaft, and a generator-side frequency converter electrically coupled to the electrical generator for converting variable frequency AC received from the electrical generator into DC. The generator-side frequency converter is electrically coupled to an electrical load and is configured to at least one of supply reactive power to the electrical load and absorb reactive power from the electrical load. The wind turbine also includes a grid-side frequency converter electrically coupled to the generator-side frequency converter for converting DC received from the generator-side frequency converter into fixed frequency AC. The grid-side frequency converter is electrically coupled to the electrical load and is configured to at least one of supply reactive power to the electrical load or absorb reactive power from the electrical load.
摘要翻译：风力涡轮机包括具有轮毂的转子，连接到轮毂的至少一个转子叶片以及联接到所述轮毂上以与其一起旋转的转子轴。风力涡轮机还包括耦合到转子轴的发电机和电耦合到发电机的发电机侧变频器，用于将从发电机接收的可变频率AC转换成DC。发电机侧变频器电耦合到电负载并且被配置为向电负载提供无功功率和吸收来自电负载的无功功率中的至少一个。风力涡轮机还包括电耦合到发电机侧变频器的电网侧变频器，用于将从发电机侧变频器接收的DC转换成固定频率AC。电网侧变频器电耦合到电负载并且被配置为向电负载提供无功功率或吸收来自电负载的无功功率中的至少一个。

5. 发明授权

US06327162B1 Static series voltage regulator 失效
标题翻译：静态串联稳压器
公开(公告)号：US06327162B1
公开(公告)日：2001-12-04
申请号：US08619104
申请日：1996-03-21
申请人： Einar V. Larsen , Kara Clark , Reigh Walling
发明人： Einar V. Larsen , Kara Clark , Reigh Walling
IPC分类号： H02H700
CPC分类号： H02J3/1814 , Y02E40/18 , Y10T307/615
摘要： A static series voltage regulator (SSVR) for an electric power distribution system protects a load on a feeder branch from voltage dips by boosting voltage under certain conditions. The SSVR contains a 3-phase voltage source inverter and a source bridge, fed from a source, supplying the dc side of the inverter. A series transformer is connected between the power source and a load coupling the inverter output to appear between the power source and the load. A surge filter connected in parallel with the series transformer protects the load from fast front voltage pulses produced by the inverter, and isolation and bypass switches isolate the inverter and series transformer from the power source and load. The inverter is controlled so that during normal operation it acts as a short on the series transformer, and, during a fault that causes a dip in the source voltage, it injects voltage in series with the source voltage to provide a boost action to maintain load voltage at a desired magnitude and balance. The SSVR senses the incoming voltage from the utility and load current and constructs what the load voltage would be in the absence of boost action. This information is processed through a minimum detector to obtain a signal VLOXFL which rapidly responds to a voltage dip but remembers a dip happened for a few cycles. When VLOXFL falls below some threshold then boosting begins to bring load voltage to a desired level. Boosting is halted after VLOXFL exceeds the threshold, or when the load voltage exceeds a high voltage threshold.
摘要翻译：用于配电系统的静态串联电压调节器（SSVR）通过在特定条件下提升电压来保护馈线支路上的负载不受电压骤降。 SSVR包含一个三相电压源逆变器和一个源极，源极供电，为逆变器的直流侧供电。一个串联变压器连接在电源和耦合变频器输出的负载之间，出现在电源和负载之间。与串联变压器并联连接的浪涌滤波器保护负载免受逆变器产生的快速前置电压脉冲的影响，隔离和旁路开关将变频器和串联变压器与电源和负载隔离。逆变器被控制，使得在正常工作期间，它充当串联变压器的短路，并且在导致源电压下降的故障期间，它将与源电压串联注入电压以提供升压动作以维持负载电压达到所需的幅度和平衡。 SSVR检测来自公用事业的输入电压和负载电流，并构建在没有升压动作的情况下负载电压将是什么。该信息通过最小检测器处理以获得快速响应于电压下降的信号VLOXFL，但是记住在几个周期内发生的下降。当VLOXFL低于某个阈值时，升压开始使负载电压达到所需的电平。 VLOXFL超过阈值后，或当负载电压超过高电压阈值时，升压停止。

6. 发明申请

US20080093855A1 METHODS AND APPARATUS FOR SUPPLYING AND/OR ABSORBING REACTIVE POWER 有权
标题翻译：供应和/或吸收反应动力的方法和装置
公开(公告)号：US20080093855A1
公开(公告)日：2008-04-24
申请号：US11957954
申请日：2007-12-17
申请人： Reigh Walling
发明人： Reigh Walling
IPC分类号： H02J3/18 , F03D9/00 , H02P9/04 , H02P9/42
CPC分类号： H02J3/16 , H02J3/386 , H02J3/50 , Y02E10/763 , Y02E40/34
摘要： A wind turbine includes a rotor having a hub, at least one rotor blade coupled to the hub, and a rotor shaft coupled to said hub for rotation therewith. The wind turbine also includes an electrical generator coupled to the rotor shaft, and a generator-side frequency converter electrically coupled to the electrical generator for converting variable frequency AC received from the electrical generator into DC. The generator-side frequency converter is electrically coupled to an electrical load and is configured to at least one of supply reactive power to the electrical load and absorb reactive power from the electrical load. The wind turbine also includes a grid-side frequency converter electrically coupled to the generator-side frequency converter for converting DC received from the generator-side frequency converter into fixed frequency AC. The grid-side frequency converter is electrically coupled to the electrical load and is configured to at least one of supply reactive power to the electrical load or absorb reactive power from the electrical load.
摘要翻译：风力涡轮机包括具有轮毂的转子，连接到轮毂的至少一个转子叶片以及联接到所述轮毂上以与其一起旋转的转子轴。风力涡轮机还包括耦合到转子轴的发电机和电耦合到发电机的发电机侧变频器，用于将从发电机接收的可变频率AC转换成DC。发电机侧变频器电耦合到电负载并且被配置为向电负载提供无功功率和吸收来自电负载的无功功率中的至少一个。风力涡轮机还包括电耦合到发电机侧变频器的电网侧变频器，用于将从发电机侧变频器接收的DC转换成固定频率AC。电网侧变频器电耦合到电负载并且被配置为向电负载提供无功功率或吸收来自电负载的无功功率中的至少一个。

7. 发明申请

US20070093978A1 Detection of islanding in power grids 有权
标题翻译：检测电网孤岛
公开(公告)号：US20070093978A1
公开(公告)日：2007-04-26
申请号：US11259673
申请日：2005-10-26
申请人： Reigh Walling , Andre Langel
发明人： Reigh Walling , Andre Langel
IPC分类号： G06F19/00
CPC分类号： H02J3/38 , H02J2003/388 , H02P9/105 , H02P2101/15
摘要： A method for detecting islanding conditions in an electrical grid having a power line voltage includes monitoring a detectable signal different from the power line voltage at a generating station, superimposing the detectable signal onto the power line voltage at a grid point outside the generating station, and switching the generating station from a grid-connected mode of operation to an islanded mode of operation when the signal to which the detector is responsive is determined to be absent.
摘要翻译：用于检测具有电力线电压的电网中的孤岛状况的方法包括监测与发电站处的电力线电压不同的可检测信号，将可检测信号叠加在发电站外的电网线电压处，以及当发现检测器响应的信号被确定为不存在时，将发电站从并网运行模式切换到孤岛运行模式。

8. 发明授权

US07397143B2 Methods and apparatus for supplying and/or absorbing reactive power 有权
标题翻译：用于供应和/或吸收无功功率的方法和装置
公开(公告)号：US07397143B2
公开(公告)日：2008-07-08
申请号：US11957954
申请日：2007-12-17
申请人： Reigh Walling
发明人： Reigh Walling
IPC分类号： H02P9/00 , F03D7/00
CPC分类号： H02J3/16 , H02J3/386 , H02J3/50 , Y02E10/763 , Y02E40/34
摘要： A wind turbine includes a rotor having a hub, at least one rotor blade coupled to the hub, and a rotor shaft coupled to said hub for rotation therewith. The wind turbine also includes an electrical generator coupled to the rotor shaft, and a generator-side frequency converter electrically coupled to the electrical generator for converting variable frequency AC received from the electrical generator into DC. The generator-side frequency converter is electrically coupled to an electrical load and is configured to at least one of supply reactive power to the electrical load and absorb reactive power from the electrical load. The wind turbine also includes a grid-side frequency converter electrically coupled to the generator-side frequency converter for converting DC received from the generator-side frequency converter into fixed frequency AC. The grid-side frequency converter is electrically coupled to the electrical load and is configured to at least one of supply reactive power to the electrical load or absorb reactive power from the electrical load.
摘要翻译：风力涡轮机包括具有轮毂的转子，连接到轮毂的至少一个转子叶片以及联接到所述轮毂上以与其一起旋转的转子轴。风力涡轮机还包括耦合到转子轴的发电机和电耦合到发电机的发电机侧变频器，用于将从发电机接收的可变频率AC转换成DC。发电机侧变频器电耦合到电负载并且被配置为向电负载提供无功功率和吸收来自电负载的无功功率中的至少一个。风力涡轮机还包括电耦合到发电机侧变频器的电网侧变频器，用于将从发电机侧变频器接收的DC转换成固定频率AC。电网侧变频器电耦合到电负载并且被配置为向电负载提供无功功率或吸收来自电负载的无功功率中的至少一个。

9. 发明授权

US07312537B1 Methods and apparatus for supplying and/or absorbing reactive power 有权
标题翻译：用于供应和/或吸收无功功率的方法和装置
公开(公告)号：US07312537B1
公开(公告)日：2007-12-25
申请号：US11424989
申请日：2006-06-19
申请人： Reigh Walling
发明人： Reigh Walling
IPC分类号： H02P9/00 , F03D7/00
CPC分类号： H02J3/16 , H02J3/386 , H02J3/50 , Y02E10/763 , Y02E40/34
摘要： A wind turbine includes a rotor having a hub, at least one rotor blade coupled to the hub, and a rotor shaft coupled to said hub for rotation therewith. The wind turbine also includes an electrical generator coupled to the rotor shaft, and a generator-side frequency converter electrically coupled to the electrical generator for converting variable frequency AC received from the electrical generator into DC. The generator-side frequency converter is electrically coupled to an electrical load and is configured to at least one of supply reactive power to the electrical load and absorb reactive power from the electrical load. The wind turbine also includes a grid-side frequency converter electrically coupled to the generator-side frequency converter for converting DC received from the generator-side frequency converter into fixed frequency AC. The grid-side frequency converter is electrically coupled to the electrical load and is configured to at least one of supply reactive power to the electrical load or absorb reactive power from the electrical load.
摘要翻译：风力涡轮机包括具有轮毂的转子，连接到轮毂的至少一个转子叶片以及联接到所述轮毂上以与其一起旋转的转子轴。风力涡轮机还包括耦合到转子轴的发电机和电耦合到发电机的发电机侧变频器，用于将从发电机接收的可变频率AC转换成DC。发电机侧变频器电耦合到电负载并且被配置为向电负载提供无功功率和吸收来自电负载的无功功率中的至少一个。风力涡轮机还包括电耦合到发电机侧变频器的电网侧变频器，用于将从发电机侧变频器接收的DC转换成固定频率AC。电网侧变频器电耦合到电负载并且被配置为向电负载提供无功功率或吸收来自电负载的无功功率中的至少一个。

10. 发明申请

US20050040655A1 Continuous reactive power support for wind turbine generators 有权
公开(公告)号：US20050040655A1
公开(公告)日：2005-02-24
申请号：US10643297
申请日：2003-08-18
申请人： Thomas Wilkins , Nagwa Elkachouty , Reigh Walling , James Lyons , Robert Delmerico , Sumit Bose , Nicholas Miller
发明人： Thomas Wilkins , Nagwa Elkachouty , Reigh Walling , James Lyons , Robert Delmerico , Sumit Bose , Nicholas Miller
IPC分类号： F03D7/02 , H02J3/18 , H02P9/00 , F03D9/00 , H02P9/04
CPC分类号： H02P9/007 , F03D7/02 , F03D7/0272 , F03D9/255 , F03D9/257 , F05B2260/96 , F05B2270/337 , H02J3/16 , H02J3/1842 , H02J3/386 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/22 , Y02E40/34
摘要： Real and reactive power control for wind turbine generator systems. The technique described herein provides the potential to utilize the total capacity of a wind turbine generator system (e.g., a wind farm) to provide dynamic VAR (reactive power support). The VAR support provided by individual wind turbine generators in a system can be dynamically varied to suit application parameters.

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