公开(公告)号：US08050806B2

公开(公告)日：2011-11-01

申请号：US11938052

申请日：2007-11-09

申请人： Randy J. Fuller ,  Zhenning Z. Liu ,  Milind Ghanekar

发明人： Randy J. Fuller ,  Zhenning Z. Liu ,  Milind Ghanekar

IPC分类号： G05B19/18 ,  G05B19/02 ,  G05D17/001

CPC分类号： H02H3/34 ,  H02H1/0007 ,  H02H1/0092 ,  H02H3/027 ,  H02H3/165

摘要： A ground fault interruption (GFI) system is incorporated onto a DSP based LRM of an aerospace vehicle. The GFI system operates with digital controls and, unlike the prior art, the system does not employ current transformers. Synchronization pulses are employed to coordinate instantaneous current measurement samplings in each phase of a multi-phase power system. Coordinated sampling may reduce phase angle current differential errors and improve operational precision of the GFI system.

摘要翻译： 接地故障中断（GFI）系统被并入到基于DSP的航空航天车辆的LRM上。 GFI系统采用数字控制，与现有技术不同，系统不采用电流互感器。 同步脉冲用于协调多相电力系统各相的瞬时电流测量采样。 协调采样可以减少相角电流差分误差，提高GFI系统的运行精度。

公开(公告)号：US20110208449A1

公开(公告)日：2011-08-25

申请号：US13126139

申请日：2009-10-26

申请人： Xinzhou Dong ,  Tao Cui

发明人： Xinzhou Dong ,  Tao Cui

IPC分类号： G01R31/02 ,  G06F19/00

CPC分类号： G01R31/025 ,  H02H1/0092 ,  H02H3/32

摘要： The method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which collecting and calculating the phase differences of third harmonic waves relative to the fundamental wave of the residual current in the feeder line, and judging if the phase differences of the residual current in the feeder line is into a threshold range, and judging if there is a suspected grounding fault, and confirming the fault event by judging the duration and the generated times of the suspected grounding fault. Another method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which the residual current of neutral point is used.

摘要翻译： 提供了基于剩余电流谐波分量检测单相接地故障的方法，其中收集并计算相对于馈线中剩余电流基波的三次谐波的相位差，并判断是否 馈线中的剩余电流的相位差成为阈值范围，判断是否有可疑的接地故障，并通过判断可疑接地故障的持续时间和产生时间来确认故障事件。 提供了基于剩余电流谐波分量检测单相接地故障的另一种方法，其中使用了中性点的剩余电流。

公开(公告)号：US20110080177A1

公开(公告)日：2011-04-07

申请号：US12572870

申请日：2009-10-02

申请人： Riley D. Beck ,  Kent D. Layton ,  Matthew A. Tyler ,  Scott R. Grange

发明人： Riley D. Beck ,  Kent D. Layton ,  Matthew A. Tyler ,  Scott R. Grange

IPC分类号： G01R31/14 ,  G01R27/00 ,  G01R19/00

CPC分类号： G01R27/18 ,  G01R15/18 ,  G01R27/16 ,  H02H1/0092 ,  H02H1/04 ,  H02H3/33

摘要： A method and circuit for determining a circuit element parameter in a ground fault circuit interrupter circuit. An electrical signal provided to a first node is used to generate another electrical signal at a second node. The electrical signal at the second node is multiplexed with a modulation signal to generate a modulated signal that is then filtered and converted into a digital representation of a portion of the circuit element parameter. The electrical signal at the second node is multiplexed with the modulation signal after it has been phase shifted to produce a modulated signal that is filter and converted into a digital representation of another portion of the circuit element parameter. In another aspect, a slope based solenoid self-test method is used for self-testing in a GFCI circuit. Alternatively, a method for determining a wiring fault is provided using a digital filter.

摘要翻译： 一种用于确定接地故障电路断续器电路中的电路元件参数的方法和电路。 提供给第一节点的电信号用于在第二节点产生另一电信号。 第二节点处的电信号与调制信号多路复用，以产生经过滤波的调制信号，并将其转换为电路元件参数的一部分的数字表示。 第二节点上的电信号在相移之后与调制信号多路复用，以产生被滤波的调制信号并转换成电路元件参数的另一部分的数字表示。 另一方面，在GFCI电路中使用基于斜率的电磁自检方法进行自检。 或者，使用数字滤波器提供用于确定布线故障的方法。

公开(公告)号：US07813818B2

公开(公告)日：2010-10-12

申请号：US10876663

申请日：2004-06-28

申请人： Carlo Gemme ,  Paolo Gritti ,  Alessandro Colombo ,  Christian Reuber ,  Pentti Mahonen ,  Marty Trivette

发明人： Carlo Gemme ,  Paolo Gritti ,  Alessandro Colombo ,  Christian Reuber ,  Pentti Mahonen ,  Marty Trivette

IPC分类号： G05B11/01 ,  G01R19/00 ,  H02B1/24

CPC分类号： H02H1/0092 ,  H02H3/00 ,  Y10T307/74

摘要： An electric power distribution switchboard (1) in which one or more functional units are equipped with a switching device compartment (3) that integrates primary and secondary functions. Within the switching device compartment (3) are included, together with the switching device (37), the current and voltage sensors (36), the position sensors for interlocking, a human machine interface (HMI) and an Intelligent Electronic Device (IED) (4) and the related local configuration point (32) to configure the IED (4). The IED (4) realizes functional unit supervision, control, protection, communication and monitoring and acts as a concentrating point of functional unit information and decisions. The switchboard (1) of the invention further comprises power supply section, an I/O section and a communication system.

摘要翻译： 一种配电配电板（1），其中一个或多个功能单元配备有集成了主功能和次功能的开关装置隔间（3）。 包括开关装置隔间（3）和开关装置（37），电流和电压传感器（36），用于互锁的位置传感器，人机界面（HMI）和智能电子装置（IED） （4）和相关的本地配置点（32）配置IED（4）。 IED（4）实现功能单元监控，控制，保护，通信和监控，作为功能单元信息和决策的重点。 本发明的交换机（1）还包括电源部分，I / O部分和通信系统。

公开(公告)号：US20100165521A1

公开(公告)日：2010-07-01

申请号：US12344772

申请日：2008-12-29

申请人： Sriram CHANGALI ,  John Kenneth Hooker ,  Konstantin V. Grigoryan ,  Scott Jeffrey Hall

发明人： Sriram CHANGALI ,  John Kenneth Hooker ,  Konstantin V. Grigoryan ,  Scott Jeffrey Hall

IPC分类号： H02H3/08

CPC分类号： H02H1/0015 ,  H02H1/0092 ,  H02H3/08

摘要： An apparatus to perform parallel arc fault current interruption (AFCI). The apparatus includes a current sensing device disposed in the electrical circuit to sense an electrical load, the current sensing device configured to produce an output signal representative of a load current passing therethrough, a detection unit, in signal communication with the current sensing device and configured to receive the output signal produced by the current sensing device, the detection unit being configured and disposed to output a secondary signal based on the output signal, and a microcontroller coupled to the detection unit, being responsive to computer executable instructions which, when executed by the microcontroller, cause the microcontroller to receive and to decompose the secondary signal via discrete wavelet transforms to thereby obtain discrete wavelet coefficients, and to compute a sum of the discrete wavelet coefficients, and to compare the sum of the discrete wavelet coefficients to a predetermined threshold, and to generate a trip signal when the sensed load current is above a predetermined threshold and the sum of the discrete wavelet coefficients cooperatively indicate that predetermined threshold conditions for trip signal generation are satisfied

摘要翻译： 一种执行并联电弧故障电流中断（AFCI）的设备。 该装置包括设置在电路中以感测电负载的电流感测装置，电流感测装置被配置为产生表示通过其中的负载电流的输出信号，检测单元，与电流感测装置进行信号通信并配置 为了接收由电流感测装置产生的输出信号，检测单元被配置和布置为基于输出信号输出辅助信号，以及耦合到检测单元的微控制器响应于计算机可执行指令，当被执行时 微控制器使得微控制器通过离散小波变换接收和分解辅助信号，从而获得离散小波系数，并计算离散小波系数的和，并将离散小波系数的和与预定阈值进行比较 并且当感测到的l产生跳闸信号 oad电流高于预定阈值，并且离散小波系数的和协同地指示满足用于跳闸信号产生的预定阈值条件

公开(公告)号：US20100157486A1

公开(公告)日：2010-06-24

申请号：US12339516

申请日：2008-12-19

申请人： Kevin L. Parker ,  Theodore J. Miller

发明人： Kevin L. Parker ,  Theodore J. Miller

IPC分类号： H02H7/00

CPC分类号： H02H1/0015 ,  H02H1/0092

摘要： An arc fault circuit interrupter includes separable contacts, an operating mechanism and an arc fault detector structured to detect an arc fault condition operatively associated with the contacts. The arc fault detector includes a tuned current sensor structured to sense broadband noise of a current flowing through the contacts, a compression circuit including an input of the sensed broadband noise and an output. The compression circuit compresses the dynamic range of the sensed broadband noise. A minimum detector includes an input of the compression circuit output and an output of the minimum value of the minimum detector input. A processor includes a number of inputs and an output. One of the inputs is the output of the minimum value of the minimum detector. A trip mechanism cooperates with the output of the processor and the operating mechanism to trip open the contacts responsive to the detected arc fault condition.

摘要翻译： 电弧故障电路断路器包括可分离触点，操作机构和电弧故障检测器，其被构造为检测与触点可操作地相关联的电弧故障状况。 电弧故障检测器包括调谐电流传感器，其被构造为感测流过触点的电流的宽带噪声，压缩电路包括感测到的宽带噪声的输入和输出。 压缩电路压缩感测到的宽带噪声的动态范围。 最小检测器包括压缩电路输出的输入和最小检测器输入的最小值的输出。 处理器包括多个输入和输出。 其中一个输入是最小检测器的最小值的输出。 跳闸机构与处理器的输出和操作机构配合，以响应于检测到的电弧故障状况而跳闸打开触点。

公开(公告)号：US20090198459A1

公开(公告)日：2009-08-06

申请号：US12405340

申请日：2009-03-17

申请人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

发明人： Mario Bilac ,  Carlos Restrepo ,  Hugh T. Kinsel ,  Amit Nayak

IPC分类号： G01R31/00

CPC分类号： H02H1/0015 ,  G01R31/3277 ,  H02H1/0092 ,  H02H3/33

摘要： An electrical fault detection device for use in a branch of a power circuit that utilizes signals from an AC line current sensor coupled to an electrical distribution line having a primary and neutral lines, a line high-frequency sensor coupled to the electrical distribution line, a differential current sensor coupled to the primary and neutral lines, and a ground fault current sensor coupled to the primary and neutral lines. A signal conditioner receives the signals outputted by AC current line current sensor, the line high frequency sensor, the differential current sensor and the ground fault current sensor and generates a signal indicative of the load current associated with a branch of the power circuit. Output of the signal conditioner is sampled and processed by a processing resource. The processing resource has stored therein data representing a plurality of time-versus-current curves that define a plurality of regions in which tripping may or may not occur. One region has time data and current data that define a time-duration for a particular current magnitude for which no tripping will occur. Another region has time data and current data that define a time-duration of a particular current magnitude for which tripping will occur. Processing resource processes sampled signal to determine the region to which the processed time data and current data correspond, and generates a signal to initiate tripping if the sampled signal yields a time duration for a particular current magnitude that corresponds to a region for which tripping must occur.

摘要翻译： 一种电力故障检测装置，用于利用耦合到具有初级和中性线的配电线路的交流线路电流传感器的信号的电力电路的分支，耦合到配电线路的线路高频传感器， 耦合到主线路和中性线路的差动电流传感器以及耦合到主线路和中性线路的接地故障电流传感器。 信号调节器接收由交流电流线路电流传感器，线路高频传感器，差分电流传感器和接地故障电流传感器输出的信号，并产生指示与电力电路的分支相关联的负载电流的信号。 信号调节器的输出由处理资源进行采样和处理。 处理资源中存储了表示多个时间 - 电流曲线的数据，该曲线定义了可能发生或可能不发生跳闸的多个区域。 一个区域具有定义不发生跳闸的特定电流幅度的时间长度的时间数据和当前数据。 另一个区域具有时间数据和当前数据，其定义了将发生跳闸的特定电流幅度的持续时间。 处理资源处理采样信号以确定处理时间数据和当前数据对应的区域，并且如果采样信号产生对应于必须发生跳闸的区域的特定电流幅度的持续时间，则产生信号以启动跳闸 。

公开(公告)号：US07454432B2

公开(公告)日：2008-11-18

申请号：US11037756

申请日：2005-01-18

申请人： Mitsuhiro Akiyama

发明人： Mitsuhiro Akiyama

IPC分类号： G06F7/06 ,  G06F7/10 ,  G06F17/30 ,  G06F11/26

CPC分类号： G06F17/30958 ,  H02H1/0092 ,  H02H3/063 ,  H02H7/261 ,  H02H7/28 ,  Y10S707/99933 ,  Y10S707/99934 ,  Y10S707/99942 ,  Y10S707/99943

摘要： A system and a method are provided for specifying arbitrary nodes and identifying a section between them on a system diagram of a distribution system. It comprises a system diagram information management portion for managing information on each of nodes and spans constituting the system diagram and ID information given to each of the nodes, an input portion for receiving an input specifying the nodes, a search portion for creating a search condition using the ID information based on the node specification and searching the span between the specified nodes so as to identify the section constituted by the searched span, and an output portion for display-outputting the system diagram visually indicating the section identified by the search portion.

摘要翻译： 提供了一种用于指定任意节点并在分配系统的系统图上识别它们之间的部分的系统和方法。 它包括一个系统图信息管理部分，用于管理构成系统图的每个节点和跨度的信息以及给予每个节点的ID信息，用于接收指定节点的输入的输入部分，用于创建搜索条件的搜索部分 使用基于节点规范的ID信息，并搜索指定节点之间的跨度，以便识别由搜索到的跨度构成的部分，以及输出部分，用于以目视方式显示输出系统图，指示由搜索部分标识的部分。

公开(公告)号：US20080042683A1

公开(公告)日：2008-02-21

申请号：US11831366

申请日：2007-07-31

申请人： Bogdan Kasztenny ,  Dale Finney ,  Michael McClure

发明人： Bogdan Kasztenny ,  Dale Finney ,  Michael McClure

IPC分类号： G01R31/34 ,  H02H7/06

CPC分类号： H02H7/06 ,  H02H1/0092

摘要： A method for detecting stator ground faults in a generator is described. The method includes receiving a neutral voltage signal from a neutral point of a stator, receiving a plurality of terminal voltage and current signals from the stator, deriving a magnitude of a harmonic component from the neutral voltage signal, deriving a total complex power from the terminal voltage and current signals, calculating an expected value of a harmonic based on the complex power at a first time and a plurality of values of the complex power, where the values of the complex power are measured at times before the first time, and comparing the expected value and a measured value of the harmonic.

摘要翻译： 描述了一种用于检测发电机中定子接地故障的方法。 该方法包括从定子的中性点接收中性电压信号，从定子接收多个端子电压和电流信号，从中性电压信号导出谐波分量的幅度，从终端导出总复合功率 电压和电流信号，基于第一时间的复数功率计算谐波的期望值，以及复数功率的多个值，其中复数功率的值在第一时间之前被测量，并将 预期值和谐波的测量值。

公开(公告)号：US20070276567A1

公开(公告)日：2007-11-29

申请号：US10591357

申请日：2005-03-02

申请人： Markus Schlesiger ,  Sven Baumann

发明人： Markus Schlesiger ,  Sven Baumann

IPC分类号： G06F7/00

CPC分类号： H02H7/0851 ,  H02H1/0092

摘要： A method for monitoring the adjustment movement of a component, in particular a window pane or a sunroof in motor vehicles, which is driven by a drive device and can be adjusted in a translatory or rotary fashion. A plurality of input signals which can be derived from the drive device and which represent a deceleration of the adjustment movement of the drive device are input at input neurons of an input layer of a neural network with at least one hidden layer having hidden neurons. Said network outputting, at least one output neuron of an output layer, an output value which corresponds to the adjusting force or to a trapped state or nontrapped state.

摘要翻译： 一种用于监测由驱动装置驱动并可以以平移或旋转方式调节的部件，特别是机动车辆中的窗玻璃或天窗的调节运动的方法。 可以从驱动装置导出并且表示驱动装置的调节运动的减速度的多个输入信号在具有隐藏的神经元的至少一个隐藏层的神经网络的输入层的输入神经元处被输入。 所述网络输出输出层的至少一个输出神经元，对应于调节力或被捕获状态或未捕获状态的输出值。