System and Method for Synchronized Measurements
    1.
    发明申请
    System and Method for Synchronized Measurements 审中-公开
    用于同步测量的系统和方法

    公开(公告)号:US20090292485A1

    公开(公告)日:2009-11-26

    申请号:US12126606

    申请日:2008-05-23

    IPC分类号: G01R29/00

    摘要: A system and method of synchronizing measurements between a master monitor (130 and/or 132) and a slave monitor (154 and/or 164). A system controller (110) receives master samples representing a signal characteristic from the master monitor (130 and/or 132) and slave samples representing the signal characteristic from the slave monitor (154 and/or 164). The master samples and slave samples are aligned using correlation analysis to obtain the identification of a slave sample that aligns with a predetermined master sample. This identification is transmitted to the slave monitor and used to synchronize a master measurement with a slave measurement.

    摘要翻译: 一种在主监视器(130和/或132)与从属监视器(154和/或164)之间同步测量的系统和方法。 系统控制器(110)从主监视器(130和/或132)接收表示信号特征的主样本,并从从属监视器(154和/或164)接收代表信号特征的从属样本。 使用相关分析来对准主样本和从样本,以获得与预定主样本对准的从样本的标识。 该标识被传送到从监视器,用于使主测量与从测量同步。

    Method of detecting instability in islanded electrical systems
    2.
    发明授权
    Method of detecting instability in islanded electrical systems 有权
    检测孤岛电气系统不稳定性的方法

    公开(公告)号:US09077208B2

    公开(公告)日:2015-07-07

    申请号:US13341166

    申请日:2011-12-30

    申请人: Jon A. Bickel

    发明人: Jon A. Bickel

    IPC分类号: G01R31/40 H02J3/46 H02J3/24

    CPC分类号: H02J3/46 H02J3/24

    摘要: Systems and methods for evaluating the stability of an islanded electrical system (off-grid) using high-speed frequency measurements of the electrical signal supplied by an alternate power source in the islanded electrical system. Additional inputs may include status signals from an automatic transfer switch, a generator, and loads within the islanded electrical system. The high-speed frequency measurements have a resolution sufficient to enable analysis of any combination of the frequency magnitude (e.g., sudden increase), frequency slew rate (e.g., frequency rate of change), frequency rate of recovery (e.g., frequency recovery time), or frequency oscillations (e.g., frequency ringing around the nominal value before settling) to indicate the presence of an actual or impending instability of the islanded electrical system. The frequency referred to herein corresponds to the frequency at which an alternating current supplied by the alternate power source is cycling.

    摘要翻译: 使用由岛式电气系统中的备用电源提供的电信号的高速频率测量来评估孤岛电气系统(离网)的稳定性的系统和方法。 附加输入可以包括来自自动转换开关,发电机的状态信号和孤岛电气系统内的负载。 高速频率测量具有足够的分辨率,能够分析频率幅度(例如突然增加),频率转换速率(例如,频率变化率),频率恢复频率(例如频率恢复时间)的任何组合, 或频率振荡(例如,在稳定之前围绕标称值振铃的频率),以指示孤岛电气系统的实际或即将发生的不稳定性的存在。 本文所述的频率对应于由交替电源供应的交流电循环的频率。

    Methods and systems for automatic conversion of a utility monitoring system layout into a storage format
    3.
    发明授权
    Methods and systems for automatic conversion of a utility monitoring system layout into a storage format 有权
    将实用监控系统布局自动转换为存储格式的方法和系统

    公开(公告)号:US08326892B2

    公开(公告)日:2012-12-04

    申请号:US12156173

    申请日:2008-05-30

    IPC分类号: G06F7/00 G06F17/30

    摘要: A method and system of converting numerical infrastructure data relating to a utility monitoring system having elements arranged in a hierarchy to a graphic compatible storage data format. Numerical infrastructure data relating to the elements of the utility monitoring system is obtained. The numerical infrastructure data relating to the elements of the utility monitoring system is converted to the graphic compatible storage data format. The graphic compatible storage data format may be System Specification Description (SSD). The converted data is stored in a storage file. A user interface may access the storage file to generate a graphic display showing the elements of the utility monitoring system arranged in the hierarchy.

    摘要翻译: 将与具有以层次结构排列的元件的效用监视系统相关的数字基础设施数据转换为图形兼容的存储数据格式的方法和系统。 获得了与实用监控系统相关的数值基础设施数据。 与公用事业监控系统的元件相关的数值基础设施数据转换为图形兼容的存储数据格式。 图形兼容的存储数据格式可以是系统规格说明(SSD)。 转换的数据存储在存储文件中。 用户界面可以访问存储文件以生成显示布置在层次结构中的效用监视系统的元素的图形显示。

    Automatic identification of multiple power grids using data synchronization
    4.
    发明授权
    Automatic identification of multiple power grids using data synchronization 有权
    使用数据同步自动识别多个电网

    公开(公告)号:US08260579B2

    公开(公告)日:2012-09-04

    申请号:US12496301

    申请日:2009-07-01

    IPC分类号: G06F11/00

    摘要: A method of automatically identifying whether intelligent electronic devices (IEDs) in a power monitoring system are in multiple electrical grids. A controller sends an instruction to each IED in a predetermined time sequence such that each IED receives the instruction at a different time, commanding each IED to begin logging frequency variation data in a current/voltage signal monitored by the IED and to send the data to the controller and an associated cycle count. The controller receives the variation data and associated cycle count and determines a peak correlation using a data alignment algorithm on IED pair combinations. If the IEDs are on the same electrical grid, the peak correlations should occur at cycle count offsets that match the order that the IEDs received the instruction. Any discrepancies in the expected order of peak correlations are flagged, and the corresponding IEDs are determined to be on different grids.

    摘要翻译: 一种自动识别电力监控系统中的智能电子设备(IED)是否在多个电网中的方法。 控制器以预定的时间顺序向每个IED发送指令,使得每个IED在不同的时间接收指令,命令每个IED开始记录由IED监视的当前/电压信号中的频率变化数据,并将数据发送到 控制器和相关的循环计数。 控制器接收变化数据和相关的循环计数,并使用IED对组合上的数据对齐算法确定峰值相关性。 如果IED位于相同的电网上,峰值相关应发生在符合IED接收到指令的顺序的周期计数偏移。 标记峰值相关性的预期顺序的任何差异,并将相应的IED确定为不同的网格。

    Method and apparatus for synchronizing data in utility system
    5.
    发明授权
    Method and apparatus for synchronizing data in utility system 有权
    用于在公用事业系统中同步数据的方法和装置

    公开(公告)号:US08081726B2

    公开(公告)日:2011-12-20

    申请号:US11801503

    申请日:2007-05-10

    IPC分类号: H04L7/00

    摘要: A time synchronization device (TSD) that produces a synchronization signal and couples it onto energized power conductors in a power monitoring system. Monitoring devices coupled to the TSD include frequency detection algorithms, such as a Goertzel filter, for detecting the synchronization signal and interpreting the information encoded in the signal. The frequency of the synchronization signal may correspond to the fourth or tenth harmonic component of the fundamental frequency of the voltage on the power conductors. The magnitude of the signal is selected to be above the expected or established noise floor of the power monitoring system plus a predetermined threshold. The duration of the signal can be varied, such as lasting a full cycle of the fundamental frequency. Multiple TSD signals received in a predetermined sequence may be converted into digital words that convey time, configuration, reset, control, or other information to the monitoring device.

    摘要翻译: 时间同步装置(TSD),其产生同步信号并将其耦合到功率监测系统中的通电电力导体上。 耦合到TSD的监控设备包括诸如Goertzel滤波器的频率检测算法,用于检测同步信号并解释在信号中编码的信息。 同步信号的频率可以对应于电力导体上的电压的基频的第四或第十谐波分量。 信号的幅度被选择为高于功率监视系统的预期或建立的噪声底限加上预定的阈值。 可以改变信号的持续时间,例如持续基频的整个周期。 以预定顺序接收的多个TSD信号可以被转换成将时间,配置,复位,控制或其他信息传送到监视设备的数字字。

    Methods and systems for automatic conversion of a utility monitoring system layout into a storage format
    6.
    发明申请
    Methods and systems for automatic conversion of a utility monitoring system layout into a storage format 有权
    将实用监控系统布局自动转换为存储格式的方法和系统

    公开(公告)号:US20090300034A1

    公开(公告)日:2009-12-03

    申请号:US12156173

    申请日:2008-05-30

    IPC分类号: G06F17/30

    摘要: A method and system of converting numerical infrastructure data relating to a utility monitoring system having elements arranged in a hierarchy to a graphic compatible storage data format. Numerical infrastructure data relating to the elements of the utility monitoring system is obtained. The numerical infrastructure data relating to the elements of the utility monitoring system is converted to the graphic compatible storage data format. The graphic compatible storage data format may be System Specification Description (SSD). The converted data is stored in a storage file. A user interface may access the storage file to generate a graphic display showing the elements of the utility monitoring system arranged in the hierarchy.

    摘要翻译: 将与具有以层次结构排列的元件的效用监视系统相关的数字基础设施数据转换为图形兼容的存储数据格式的方法和系统。 获得了与实用监控系统相关的数值基础设施数据。 与公用事业监控系统的元件相关的数值基础设施数据转换为图形兼容的存储数据格式。 图形兼容的存储数据格式可以是系统规格说明(SSD)。 转换的数据存储在存储文件中。 用户界面可以访问存储文件以生成显示布置在层次结构中的效用监视系统的元素的图形显示。

    Automated hierarchical classification for utility systems with multiple sources
    7.
    发明申请
    Automated hierarchical classification for utility systems with multiple sources 有权
    具有多个来源的公用事业系统的自动分级分类

    公开(公告)号:US20090281742A1

    公开(公告)日:2009-11-12

    申请号:US12151309

    申请日:2008-05-06

    IPC分类号: G06F17/00

    摘要: A method for automatically determining how monitoring devices in an electrical system having a main source of energy and at least one alternative source of energy (e.g., another utility source, a generator, or UPS system) are connected together to form a hierarchy. The end-user inputs identification information about the monitoring device(s) monitoring the alternative source of energy. The method receives time-series data from the monitoring devices and determines a model type of the electrical system by analyzing the monitoring device's time-series data. Once the model type is known, the method builds the complete monitoring system hierarchy in which the monitoring devices that are monitoring the main and alternative sources are placed properly. The method can also validate polarity nomenclature of the time-series data to account for end-user's varying polarity configurations.

    摘要翻译: 一种用于自动确定具有主要能量源的电气系统中的监测装置和至少一个替代能量源(例如,另一个公用事业源,发电机或UPS系统)如何连接在一起以形成层级的方法。 最终用户输入关于监视替代能源的监视设备的识别信息。 该方法从监控设备接收时间序列数据,并通过分析监控设备的时间序列数据来确定电气系统的型号类型。 一旦模型类型已知,该方法构建完整的监控系统层次结构,监控主源和替代源的监控设备正确放置在其中。 该方法还可以验证时间序列数据的极性命名,以说明最终用户的极性配置变化。

    Method and apparatus to evaluate transient characteristics in an electrical power system
    8.
    发明授权
    Method and apparatus to evaluate transient characteristics in an electrical power system 有权
    评估电力系统瞬态特性的方法和装置

    公开(公告)号:US07526391B2

    公开(公告)日:2009-04-28

    申请号:US11638820

    申请日:2006-12-14

    申请人: Jon A. Bickel

    发明人: Jon A. Bickel

    IPC分类号: G01R15/00 G06F11/00

    CPC分类号: G01R31/088 G01R31/12

    摘要: A system and method to evaluate characteristics of transient events in an electrical power system to determine the location of a transient source type, the source type of a transient event, and suggested mitigation measures that might reduce or eliminate the effects of the transient. The electrical power system has a plurality of monitoring devices that each may detect the occurrence of a transient event incident upon the power system. A controller is coupled to the monitoring devices. The monitoring devices measure signal parameter values associated with the transient event, and the location of the transient event is automatically determined by evaluating transient characteristics from each of the recording monitoring devices. Other measurements of signal parameters may be made to determine transient characteristics. The transient characteristics may be used to determine the source of the transient event, the type of transient event, mitigation measures, and the effects or predictive effects of mitigation measures.

    摘要翻译: 一种用于评估电力系统中瞬态事件特性的系统和方法,以确定瞬态源类型的位置,瞬态事件的源类型以及可能减少或消除瞬态影响的建议缓解措施。 电力系统具有多个监视装置,每个监视装置可以检测发生在电力系统上的瞬时事件。 控制器耦合到监控设备。 监视装置测量与瞬态事件相关联的信号参数值,并且通过评估每个记录监视装置的瞬态特性来自动确定瞬态事件的位置。 可以进行信号参数的其他测量以确定瞬态特性。 瞬态特征可用于确定瞬态事件的来源,瞬态事件的类型,缓解措施以及缓解措施的影响或预测效果。

    Method for power quality summary and trending
    9.
    发明授权
    Method for power quality summary and trending 有权
    电能质量总结和趋势的方法

    公开(公告)号:US07050916B2

    公开(公告)日:2006-05-23

    申请号:US10702146

    申请日:2003-11-05

    IPC分类号: G01N37/00 G06F19/00

    CPC分类号: G01R19/2513

    摘要: A system for accumulating and evaluating electromagnetic phenomena of at least one power quality category of a power distribution system, using a circuit monitor or processing system that summarizes and trends electromagnetic phenomena. The system provides for expressing the power quality index as a single number for each power quality category present and for combining multiple power quality indices into a single overall power quality index.

    摘要翻译: 一种用于累积和评估配电系统的至少一个电能质量类别的电磁现象的系统,其使用总结和趋向电磁现象的电路监视器或处理系统。 该系统提供将电力质量指数表示为存在的每个电力质量类别的单个数字,并将多个电力质量指数组合成单个总体电力质量指数。

    Monitoring method for induction motor

    公开(公告)号:US10718813B2

    公开(公告)日:2020-07-21

    申请号:US14405702

    申请日:2012-06-08

    申请人: Jon A. Bickel

    发明人: Jon A. Bickel

    IPC分类号: G01R31/34

    摘要: A method of automatically identifying an anomalous condition of an induction motor by normalizing the voltage measured across its terminals relative to the power flow to the motor or the motor's impedance. The starting and/or run current and associated voltage of the motor is measured, and a voltage variation between the measured voltage and the motor's rated voltage is determined. The power flow or impedance at the voltage variation is calculated to determine an expected power flow or impedance at the measured voltage variation. The actual power flow or impedance is compared against a nominal or expected power flow or impedance or a statistical comparison is carried out on a historical set of power flow or impedance values within an expected range at the voltage variation. When the measured values deviate from the expected ones, an alarm is triggered to indicate a potential anomaly with the motor or external thereto.