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公开(公告)号：US20140330531A1
公开(公告)日：2014-11-06
申请号：US14334243
申请日：2014-07-17
发明人： Keiichi Kaneda , Minoru Okuda , Tomonori Nishida
IPC分类号： G01R31/08
CPC分类号： G01R31/088 , H02J13/00 , H04L43/0876 , H04L43/16 , H04L67/125 , H04L69/40 , Y04S40/168 , Y04S40/18
摘要： A network monitoring apparatus includes: a monitor unit monitoring data transmitted in a network monitoring and controlling an electric power system of a transformer substation; a system fault determination database representing a correspondence between a fault in the electric power system and a type of data transmitted in the network; a calculation unit calculating a data amount monitored by the monitor unit; a first determination unit determining whether or not the data amount is greater than a threshold value; a second determination unit determining, when the monitored transmission amount is greater than the threshold value, a presence/absence of an occurrence of system fault based on the system fault determination database and a type of the monitored data; and a stop control unit stopping, when the second determination unit determines that the system fault occurs, the determination carried out in the first determination unit.
摘要翻译： 网络监视装置包括：监视单元，监视在变电站的电力系统监视和控制的网络中发送的数据; 系统故障确定数据库，其表示电力系统中的故障与在网络中发送的数据的类型之间的对应关系; 计算单元，计算由所述监视单元监视的数据量; 确定数据量是否大于阈值的第一确定单元; 第二确定单元，当所监视的传输量大于所述阈值时，基于所述系统故障确定数据库和所述监视数据的类型确定是否存在系统故障的发生; 以及停止控制单元，当所述第二确定单元确定发生所述系统故障时，停止在所述第一确定单元中执行的确定。
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公开(公告)号：US09871365B2
公开(公告)日：2018-01-16
申请号：US14653148
申请日：2013-12-16
摘要： A protective relay system includes plural protective relay devices protecting a power system based on electrical quantity data from the power system, and a communication between the protective power devices is performed via a network. The protective relay device includes a clock unit periodically clocking a timing at which sampling is performed on an electrical quantity of the power system, a relay computing unit performing a relay computation based on the electrical quantity data having undergone the sampling and electrical quantity data received via the network, a random-number creating unit creating a random number, and a synchronization-frame processing unit setting a timing of sending a synchronization frame to another protective relay device via the network based on the random number created by the random-number creating unit.
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3.发明授权公开(公告)号：US09013852B2
公开(公告)日：2015-04-21
申请号：US13857083
申请日：2013-04-04
CPC分类号： H02H3/265 , H01H9/54 , H01H9/56 , H01H33/59 , H01H33/593 , H02H1/0061 , H02H3/021 , H02H7/263
摘要： According to one embodiment, there is provided a breaker-phase-control switching system including a merging unit, a superordinate unit, and a circuit-breaker control unit. The circuit-breaker control unit includes a waveform-zero-point-calculation processing unit configured to calculate a current phase, based on absolute time kept by an internal clock and waveform data, and a predicted-breaker-operating-time-calculation processing unit configured to predict a predicted operating time. Further, a command-output-timing-determination processing unit is included which determines a timing for electrically conducting a coil from the absolute time, a preset target phase, a current phase, and a predicted operating time.
摘要翻译： 根据一个实施例，提供一种包括合并单元，上级单元和断路器控制单元的断路器相位控制切换系统。 断路器控制单元包括：波形零点计算处理单元，被配置为基于由内部时钟和波形数据保持的绝对时间来计算当前相位;以及预测断路器 - 运行时间计算处理单元 被配置为预测预测的操作时间。 此外，包括从绝对时间，预设目标相位，当前相位和预测操作时间确定线圈导通定时的指令输出定时确定处理单元。
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公开(公告)号：US20140355159A1
公开(公告)日：2014-12-04
申请号：US14461574
申请日：2014-08-18
CPC分类号： H02H1/0007 , H02H1/0061 , H02H3/027 , H02H3/05 , H02H7/263
摘要： According to one embodiment, there is provided an integration unit for protecting a power system from a failure includes an A/D converter configured to convert a quantity of electricity of a power system into digital data. The integration unit includes a communication interface unit configured to transmit the digital data to a process bus connected to a protection unit configured to protect the power system. The integration unit includes a relay calculation unit configured to execute a relay calculation operation to detect an abnormality of the power system based on the digital data and to output, based on the calculation operation result, a circuit breaking signal to trip and drive a circuit breaker inserted in the power system.
摘要翻译： 根据一个实施例，提供了一种用于保护电力系统免受故障的集成单元，包括被配置为将电力系统的电量转换为数字数据的A / D转换器。 集成单元包括通信接口单元，其被配置为将数字数据发送到连接到被配置为保护电力系统的保护单元的过程总线。 集成单元包括继电器计算单元，其被配置为执行继电器计算操作以基于数字数据检测电力系统的异常，并且基于计算操作结果输出断路信号以跳闸并驱动断路器 插入电源系统。
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