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公开(公告)号：US20100138061A1
公开(公告)日：2010-06-03
申请号：US12582353
申请日：2009-10-20
IPC分类号： G06F1/32
CPC分类号： H02J3/50 , H02J3/16 , H02J3/383 , Y02E10/563 , Y02E40/34 , Y10S323/906
摘要： A solar farm system is provided that is configured for reducing electrical loss. The solar farm system includes a plurality of PV arrays coupled to inverters and a collector system including a conductor or network of conductors. The collector system also includes a plurality of transformers with one or more transformers connected between the inverters and the conductors. The solar farm also includes a substation transformer connecting the solar farm collector system to the electrical grid. The solar farm includes a control system configured to determine at least one operating parameter for the solar farm system to reduce electrical loss and to regulate the collector system and the plurality of inverters based at least in part on the at least one operating parameter.
摘要翻译： 提供了一种用于减少电力损失的太阳能农场系统。 太阳能农场系统包括耦合到逆变器的多个PV阵列和包括导体或导体网络的收集器系统。 收集器系统还包括多个变压器，其中一个或多个变压器连接在逆变器和导体之间。 太阳能农场还包括将太阳能集热器系统连接到电网的变电站变压器。 太阳能农场包括控制系统，其被配置为至少部分地基于至少一个操作参数来确定太阳能农场系统的至少一个操作参数以减少电损耗并且调节收集器系统和多个逆变器。
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2.发明授权Anti-islanding protection systems for synchronous machine based distributed generators 失效基于同步机的分布式发电机防孤岛保护系统公开(公告)号：US07202638B2
公开(公告)日：2007-04-10
申请号：US10966665
申请日：2004-10-15
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，被配置为滤波端电压信号的带通滤波器，和被配置用于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。
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公开(公告)号：US08600573B2
公开(公告)日：2013-12-03
申请号：US12972226
申请日：2010-12-17
申请人： Jason Wayne Black , Harjeet Johal , Devon Leigh Manz , Reigh Allen Walling , William Jerome Burke
发明人： Jason Wayne Black , Harjeet Johal , Devon Leigh Manz , Reigh Allen Walling , William Jerome Burke
IPC分类号： G05D17/00
CPC分类号： H02J3/14 , Y02B70/3225 , Y04S20/222
摘要： A system and method for simultaneously restoring power to loads in a distribution network that experienced an outage. The pickup load on the feeder in the distribution network is estimated and the load limit on the feeder is determined. The load on the feeder is divided into groups based on the load limit. A restoration load control process is determined, and power is restored to each of the groups simultaneously based on the power restoration control process.
摘要翻译： 一种系统和方法，用于同时恢复经受中断的配电网络中负载的电力。 估计配电网中进料器上的拾取负载，并确定进料器的负载限制。 馈线上的负载根据负载极限分为几组。 确定恢复负载控制处理，并且基于功率恢复控制处理同时对每个组恢复功率。
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公开(公告)号：US07990743B2
公开(公告)日：2011-08-02
申请号：US12582353
申请日：2009-10-20
IPC分类号： H02M7/48
CPC分类号： H02J3/50 , H02J3/16 , H02J3/383 , Y02E10/563 , Y02E40/34 , Y10S323/906
摘要： A solar farm system is provided that is configured for reducing electrical loss. The solar farm system includes a plurality of PV arrays coupled to inverters and a collector system including a conductor or network of conductors. The collector system also includes a plurality of transformers with one or more transformers connected between the inverters and the conductors. The solar farm also includes a substation transformer connecting the solar farm collector system to the electrical grid. The solar farm includes a control system configured to determine at least one operating parameter for the solar farm system to reduce electrical loss and to regulate the collector system and the plurality of inverters based at least in part on the at least one operating parameter.
摘要翻译： 提供了一种用于减少电力损失的太阳能农场系统。 太阳能农场系统包括耦合到逆变器的多个PV阵列和包括导体或导体网络的收集器系统。 收集器系统还包括多个变压器，其中一个或多个变压器连接在逆变器和导体之间。 太阳能农场还包括将太阳能集热器系统连接到电网的变电站变压器。 太阳能农场包括控制系统，其被配置为至少部分地基于至少一个操作参数来确定太阳能农场系统的至少一个操作参数以减少电损耗并且调节收集器系统和多个逆变器。
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公开(公告)号：US20130320770A1
公开(公告)日：2013-12-05
申请号：US13483677
申请日：2012-05-30
IPC分类号： G05F1/70
CPC分类号： G05F1/70 , Y10T307/707
摘要： A reactive power control system is provided. The reactive power control system computes a required value for a reactive power based on a state observer method for at least one electrical element in an electrical system. The reactive power control system also generates a reactive power command based on the required value of the reactive power. The reactive power control system further transmits the reactive power command to the electrical element in the electrical system for generating the required value of reactive power to compensate for a voltage change induced by the respective electrical element in the electrical system
摘要翻译： 提供无功功率控制系统。 无功功率控制系统基于用于电气系统中的至少一个电气元件的状态观察器方法来计算无功功率的所需值。 无功功率控制系统还基于无功功率的所需值产生无功功率指令。 无功功率控制系统还将无功功率命令发送到电气系统中的电气元件，以产生无功功率的所需值，以补偿由电气系统中的相应电气元件引起的电压变化
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6.发明申请METHOD AND APPARATUS FOR CONTROL OF FAULT-INDUCED DELAYED VOLTAGE RECOVERY (FIDVR) WITH PHOTOVOLTAIC AND OTHER INVERTER-BASED DEVICES 有权用于控制具有光伏和其他基于逆变器的器件的故障诱导延迟电压恢复（FIDVR）的方法和装置公开(公告)号：US20120049629A1
公开(公告)日：2012-03-01
申请号：US12970350
申请日：2010-12-16
CPC分类号： H02J3/383 , H02J3/1821 , Y02B10/12 , Y02B10/14 , Y02E10/563 , Y02E40/30 , Y10T29/4902 , Y10T307/615 , Y10T307/735
摘要： A method of assembling a motor stall correction system includes coupling an inverter-based electric power generation device to an electric power inverter assembly. The method also includes coupling the electric power inverter assembly to at least one induction motor. The method further includes operatively coupling at least one controller to the electric power inverter assembly. The controller is programmed to transmit electric current from the inverter-based electric power generation device to the electric power inverter assembly. The controller is also programmed to transmit real current and reactive current from the electric power inverter assembly to the induction motor. The controller is further programmed to modulate the real current and the reactive current as a function of at least one of an electric power grid frequency and an electric power grid voltage.
摘要翻译： 一种组装电动机失速校正系统的方法包括将基于逆变器的发电装置耦合到电力逆变器组件。 该方法还包括将电力逆变器组件耦合到至少一个感应电动机。 该方法还包括将至少一个控制器可操作地耦合到电力逆变器组件。 控制器被编程为将电流从基于逆变器的发电装置传送到电力逆变器组件。 控制器还被编程为将电力和电流电流从电力逆变器组件传输到感应电动机。 控制器进一步被编程为根据电力电网频率和电力电网电压中的至少一个来调制实际电流和无功电流。
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公开(公告)号：US07376491B2
公开(公告)日：2008-05-20
申请号：US11259673
申请日：2005-10-26
申请人： Reigh Allen Walling , Andre Langel
发明人： Reigh Allen Walling , Andre Langel
IPC分类号： G05D11/00
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。
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8.发明授权公开(公告)号：US07016793B2
公开(公告)日：2006-03-21
申请号：US10677559
申请日：2003-10-01
申请人： Zhihong Ye , Vinod John , Changyong Wang , Luis Jose Garces , Rui Zhou , Lei Li , Reigh Allen Walling , William James Premerlani , Peter Claudius Sanza , Yan Liu , Mark Edward Dame
发明人： Zhihong Ye , Vinod John , Changyong Wang , Luis Jose Garces , Rui Zhou , Lei Li , Reigh Allen Walling , William James Premerlani , Peter Claudius Sanza , Yan Liu , Mark Edward Dame
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。
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公开(公告)号：US09389631B2
公开(公告)日：2016-07-12
申请号：US13483677
申请日：2012-05-30
CPC分类号： G05F1/70 , Y10T307/707
摘要： A reactive power control system is provided. The reactive power control system computes a required value for a reactive power based on a state observer method for at least one electrical element in an electrical system. The reactive power control system also generates a reactive power command based on the required value of the reactive power. The reactive power control system further transmits the reactive power command to the electrical element in the electrical system for generating the required value of reactive power to compensate for a voltage change induced by the respective electrical element in the electrical system.
摘要翻译： 提供无功功率控制系统。 无功功率控制系统基于用于电气系统中的至少一个电气元件的状态观察器方法来计算无功功率的所需值。 无功功率控制系统还基于无功功率的所需值产生无功功率指令。 无功功率控制系统还将无功功率命令发送到电气系统中的电气元件，以产生无功功率的所需值，以补偿由电气系统中的相应电气元件引起的电压变化。
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公开(公告)号：US09178350B2
公开(公告)日：2015-11-03
申请号：US13307740
申请日：2011-11-30
申请人： Pan Yan , Reigh Allen Walling , Amol Rajaram Kolwalkar , Michael Lewis Reichard , Wei Ren , Swakshar Ray
发明人： Pan Yan , Reigh Allen Walling , Amol Rajaram Kolwalkar , Michael Lewis Reichard , Wei Ren , Swakshar Ray
CPC分类号： H02H7/261 , G01R31/086 , H02H3/305 , Y04S10/522
摘要： A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.
摘要翻译： 用于将电流分配到多个负载的系统包括耦合到保护区的输入的第一传感器，用于测量进入保护区的第一电流，其中保护区包括配电馈线的至少一部分。 该系统还包括耦合到保护区的输出的第二传感器，用于测量离开保护区的第二电流，以及耦合到第一传感器和第二传感器的处理器。 处理器被编程为接收表示第一电流和第二电流的测量值，并且基于第一电流和第二电流来计算保护区的无功电流差。 处理器也被编程为将无功电流差异与故障阈值进行比较，如果无功电流差大于故障阈值，则产生错误通知。
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