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1. 发明授权

US08498832B2 Method and device for assessing and monitoring voltage security in a power system 有权
标题翻译：评估和监测电力系统电压安全的方法和装置
公开(公告)号：US08498832B2
公开(公告)日：2013-07-30
申请号：US12239637
申请日：2008-09-26
申请人： Vaithianathan Venkatasubramanian
发明人： Vaithianathan Venkatasubramanian
IPC分类号： G01R27/00 , G01R21/00
CPC分类号： G05F1/70
摘要： Provided is a method and device for assessing and monitoring voltage security in a power system. More specifically, a method and device for assessing and monitoring the value of reactive power load when changes in reactive power outputs of at least some of the generators in the electrical power system cause all of the generators in the system to reach the combined operating limit of their reactive power output. In response thereto, the method and device are further adapted to initiate suitable control measures such as switching of transformer banks and/or capacitor/reactor banks, as well as shedding loads whenever necessary to mitigate an impending voltage stability problem.
摘要翻译：提供了用于评估和监测电力系统中的电压安全性的方法和装置。更具体地说，一种用于在电力系统中的至少一些发电机的无功功率输出变化时评估和监视无功功率负载的值的方法和装置使得系统中的所有发电机都达到组合运行极限其无功功率输出。响应于此，该方法和装置进一步适于启动适当的控制措施，例如变压器组和/或电容器/电抗器组的切换，以及在需要时减少负载以减轻即将发生的电压稳定性问题。

2. 发明授权

US07987059B2 Real-time power system oscillation detection using modal analysis 有权
标题翻译：使用模态分析实时电力系统振荡检测
公开(公告)号：US07987059B2
公开(公告)日：2011-07-26
申请号：US12247746
申请日：2008-10-08
申请人： Yanfeng Gong , Armando Guzman-Casillas
发明人： Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： H02J3/24 , H02J3/00 , G06F19/00 , G06F17/40
CPC分类号： H02J3/24 , G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A power system oscillation detection device is provided for use in an electric power system. A plurality of sample signals are acquired from the electrical power system via a plurality of intelligent electronic devices (IEDs) in communication with the power system. The power system oscillation detection device includes a real-time modal analysis module, a real-time mode identification module, and real-time decision and control logic. The real-time modal analysis module calculates modes of at least one of the signals, each mode including mode information. The real-time mode identification module together with the real-time decision and control logic determines, from the mode information, whether there is an undesirable oscillation in the electric power system and activates a remedial action.
摘要翻译：提供一种用于电力系统的电力系统振荡检测装置。通过与电力系统通信的多个智能电子设备（IED）从电力系统获取多个采样信号。电力系统振荡检测装置包括实时模态分析模块，实时模式识别模块和实时决策与控制逻辑。实时模态分析模块计算至少一个信号的模式，每个模式包括模式信息。实时模式识别模块与实时决策和控制逻辑一起根据模式信息确定电力系统中是否存在不期望的振荡并且启动补救动作。

3. 发明授权

US09709054B2 Test and monitoring system for a pump installation 有权
公开(公告)号：US09709054B2
公开(公告)日：2017-07-18
申请号：US15349859
申请日：2016-11-11
申请人： Beacon Technical Systems, LLC
发明人： Eugene M. Cummings
IPC分类号： F04B51/00 , F04D13/08 , F04D13/14 , F04B49/22 , F04D15/00 , F04D13/12 , F04D15/02 , F04B23/02
CPC分类号： F04B51/00 , F04B23/021 , F04B49/22 , F04D13/086 , F04D13/12 , F04D13/14 , F04D15/0005 , F04D15/0088 , F04D15/0227
摘要： A test and monitoring system for a pump installation that initiates a cycle, admits liquid to the pump installation by an electrically-actuated valve, detects a predetermined event, stops admittance of the liquid to the pump installation by the electrically-actuated valve, and indicates results of the test cycle. The predetermined event may be a passage of a predetermined amount of time, an input from a liquid level sensor, or an input from a current sensor. The current sensor may be in electrical communication with a pump of the pump installation. The pump installation may be a sump pump installation.

4. 发明授权

US08351433B2 Intelligent electronic device with segregated real-time ethernet 有权
标题翻译：具有隔离实时以太网的智能电子设备
公开(公告)号：US08351433B2
公开(公告)日：2013-01-08
申请号：US12797419
申请日：2010-06-09
申请人： Robert E. Morris , Tony J. Lee , Andrew A. Miller , Lisa Gayle Nelms , Benjamin S. Day
发明人： Robert E. Morris , Tony J. Lee , Andrew A. Miller , Lisa Gayle Nelms , Benjamin S. Day
IPC分类号： H04L12/56
CPC分类号： H04L47/6275 , H04L47/527 , H04L47/6295
摘要： A system and method for optimizing the handling of data on a priority basis within an intelligent electronic device is disclosed. A FIFO receives messages and the messages are each associated with a subscription identifier. The messages are then routed to and stored in buffers, each associated with a subscription identifier.
摘要翻译：公开了一种用于在智能电子设备内优化基于优先级的数据处理的系统和方法。 FIFO接收消息，并且消息各自与订阅标识符相关联。然后将消息路由到并存储在缓冲器中，每个与订阅标识符相关联。

5. 发明授权

US08569915B1 High speed contact capable of detecting, indicating and preventing maloperation due to internal failure 有权
标题翻译：高速接触能够检测，指示和防止内部故障引起的误操作
公开(公告)号：US08569915B1
公开(公告)日：2013-10-29
申请号：US13622873
申请日：2012-09-19
申请人： Schweitzer Engineering Laboratories, Inc.
发明人： Edmund O. Schweitzer, III , Tony J. Lee
IPC分类号： H01H3/00
CPC分类号： H01H9/547 , Y10T307/937
摘要： A hybrid contact comprising a metallic contact in parallel with a pair of power transistors detects a failure in the ON state, corrects the failure if possible, and notifies a user via an alarm of the failure.
摘要翻译：包括与一对功率晶体管并联的金属触点的混合触点检测到ON状态下的故障，如果可能则校正故障，并且通过警报告知用户故障。

6. 发明授权

US08494795B2 Apparatus and method for estimating synchronized phasors at predetermined times referenced to a common time standard in an electrical system 有权
标题翻译：用于在电气系统中参考公共时间标准的预定时间估计同步相量的装置和方法
公开(公告)号：US08494795B2
公开(公告)日：2013-07-23
申请号：US12963331
申请日：2010-12-08
申请人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
发明人： Gregary C. Zweigle , Armando Guzman-Casillas , Luther S. Anderson
IPC分类号： G01R27/00 , G06F19/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to a common time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the common time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to a common time standard to form the plurality of synchronized phasors.
摘要翻译：一种装置和方法在电力系统中以公共时间标准参考的预定时间估计多个同步相量。该方法包括获取和确定电力系统信号的频率，基于电力系统信号的频率以采样间隔速率对功率系统信号进行采样以形成信号采样，以及基于发生时产生多个采集时间值在相应的多个不同时间以参考公共时间标准的每个信号样本。该方法还包括基于相应选择的采集时间值和参考公共时间标准的预定时间之间的时间差来调整每个信号样本的相量，以形成多个同步相量。

7. 外观设计

USD587628S1 Sanding nozzle 有权
公开(公告)号：USD587628S1
公开(公告)日：2009-03-03
申请号：US29318080
申请日：2008-05-13
申请人： Emma L. Biddings
设计人： Emma L. Biddings

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