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    • 1. 发明专利
    • Data preparation device for hi software and data preparation method for hi software
    • 用于HI软件的数据准备设备和用于HI软件的数据准备方法
    • JP2012175888A
    • 2012-09-10
    • JP2011038644
    • 2011-02-24
    • Hitachi Ltd株式会社日立製作所
    • TSUBOI OSAMUYOSHIOKA HIDEYUKI
    • H02H3/02G06F17/50H02H3/04
    • PROBLEM TO BE SOLVED: To provide a data preparation device for human interface (HI) software capable of easily preparing a data table for the HI software by extracting definition data for the HI software from CAD data of an expanded connection diagram of a digital protection device, and putting the definition data together.SOLUTION: A first data table 104 for HI software is automatically prepared by extracting definition data associated with an HI function from CAD data 102 of an expanded connection diagram, and a repetitive check on the definition data as to set values as input to a plurality of logic figures is made in the table preparation process to determine that they have the same set value from a signal name. Repetitive set values are aggregated as one set value and output to a second data table 107 for HI software, and added to prepare a repetitive data list 106, which is displayed on a display part.
    • 要解决的问题:提供一种用于人机界面(HI)软件的数据准备装置,其能够通过从扩展连接图的CAD数据中提取HI软件的定义数据来容易地准备HI软件的数据表 数字保护装置,并将定义数据放在一起。 解决方案:用于HI软件的第一数据表104通过从扩展连接图的CAD数据102中提取与HI功能相关联的定义数据来自动准备,并且对定义数据进行重复检查,以将值设置为输入 在表格准备过程中作出多个逻辑图,以确定它们具有与信号名称相同的设定值。 将重复设定值聚合为一个设定值,并将其输出到HI软件的第二数据表107,并添加以准备显示在显示部分上的重复数据列表106。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Protective relay device and current differential protective relay device
    • 保护继电器和电流差动保护继电器
    • JP2011188572A
    • 2011-09-22
    • JP2010048677
    • 2010-03-05
    • Hitachi Ltd株式会社日立製作所
    • KIDO MITSUYASUKOMATSU SHINJIYOSHIDA MASASHITAKAMI KAZUHISAITO EIJITSUBOI OSAMU
    • H02H3/28
    • PROBLEM TO BE SOLVED: To provide a protective relay device and a current differential protective relay device adaptable to the future development (migration) of a communication infrastructure.
      SOLUTION: The protective relay device includes an input unit that is input with the current of a power transmission line and converts it into a digital quantity; a timing control unit that determines sampling timing at the input unit; a computation unit that carries out protective computation using a digital quantity from the input unit; an output unit that supplies a control signal for a circuit breaker provided in the power transmission line, according to the result of computation by the computation unit; an internal communication unit that carries out data transmission to transmit a digital quantity at the input unit by cyclic packet forwarding and receives data transmitted by cyclic packet forwarding and supplies it to the computation unit; and a selection unit that is input with a first sampling pulse for sampling synchronization control at the internal communication unit, and a second sampling pulse for sampling synchronization control from an external communication unit and selects either sampling pulse to supply it to the timing control unit.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供适用于通信基础设施的未来发展(迁移)的保护继电器装置和电流差动保护继电器装置。 解决方案:保护继电器包括输入单元,输入电力线的电流并将其转换为数字量; 定时控制单元,确定所述输入单元的采样定时; 计算单元,其使用来自所述输入单元的数字量进行保护计算; 输出单元,其根据计算单元的计算结果,提供设置在电力传输线路中的断路器的控制信号; 内部通信单元,其通过循环分组转发进行数据传输以在输入单元发送数字量,并接收通过循环分组转发发送的数据,并将其提供给计算单元; 以及选择单元,其输入有用于在内部通信单元处对同步控制进行采样的第一采样脉冲,以及第二采样脉冲,用于从外部通信单元对同步控制进行采样,并选择采样脉冲以将其提供给定时控制单元。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Protection relay
    • 保护继电器
    • JP2011234467A
    • 2011-11-17
    • JP2010101601
    • 2010-04-27
    • Hitachi Ltd株式会社日立製作所
    • KOMATSU SHINJIKIDO MITSUYASUITO EIJITSUBOI OSAMUYOSHIOKA HIDEYUKI
    • H02H3/02
    • PROBLEM TO BE SOLVED: To provide a protection relay that is adaptive to change of specifications without lowering reliability actualized by standardization or modifying a software program.SOLUTION: The protection relay comprises an input circuit, a protection logic circuit 4 which executes sequence processing, an output circuit 5 for relay driving, and an output terminal of the output circuit 5. The protection relay comprises a settlement memory which is provided between a protection logic circuit 4 and output circuit 5, the settlement memory including an editing circuit 1 for performing logic circuit, an allocation change flag 2_E indicative of whether allocation of a signal to the output terminal is changed, and a reference address 2_A indicative of an address of the signal after change of the allocation. When the allocation change flag 2_E indicates that the allocation is to be changed, the editing circuit 1 reads out the signal that the reference address 2_A indicates and, performs the logic processing so as to change the signal allocation of the output terminal using the read-out signal, the allocation change flag 2_E, and an output signal, and outputs the result of the logic processing to the output circuit 5.
    • 要解决的问题:提供适应于规格变化的保护继电器,而不降低通过标准化或修改软件程序实现的可靠性。 解决方案:保护继电器包括输入电路,执行顺序处理的保护逻辑电路4,继电器驱动的输出电路5和输出电路5的输出端。保护继电器包括一个结算存储器 设置在保护逻辑电路4和输出电路5之间,结算存储器包括用于执行逻辑电路的编辑电路1,指示对输出端子的信号分配是否改变的分配改变标志2_E以及指示的参考地址2_A 更改分配后的信号地址。 当分配改变标志2_E指示分配被改变时,编辑电路1读取参考地址2_A指示的信号,并且执行逻辑处理,以便使用读取的标签来改变输出端子的信号分配, 输出信号,分配改变标志2_E和输出信号,并将逻辑处理的结果输出到输出电路5.版权所有:(C)2012,JPO&INPIT
    • 5. 发明专利
    • Protection relay system and protective relay device
    • 保护继电器系统和保护继电器
    • JP2011200100A
    • 2011-10-06
    • JP2010242953
    • 2010-10-29
    • Hitachi Ltd株式会社日立製作所
    • YOSHIDA MASASHIKIDO MITSUYASUTAKAMI KAZUHISATSUBOI OSAMUITO EIJI
    • H02H3/28H02H3/02
    • PROBLEM TO BE SOLVED: To provide a protective relay system and protective relay device, capable of attaining high-accuracy sampling synchronization without obstacle, such as, packet crash by controlling synchronization timing, when utilizing for combination of a IEEE1588 technique with a protective relay technique.SOLUTION: In the protective relay system includes a unit for sampling system current information from a power system for each predetermined electrical angle, at each terminal of the power system, and performs relay calculation for detecting an accident of the power system from the system current information transmitted between units, the plurality of units are divided into a plurality of slots for each data with a period of the predetermined electrical angle as a transmission subject; and the plurality of slots include at least a first slot for transmitting the system current information between the plurality of units and a second slot for transmitting a synchronization signal of sampling time.
    • 要解决的问题:提供一种保护继电器系统和保护继电器装置,当利用IEEE1588技术与保护继电器技术的组合时,能够通过控制同步定时获得无障碍物的诸如分组碰撞的高精度采样同步 该保护继电器系统包括一个单元,用于在电力系统的每个端子处对每个预定电角度的电力系统的系统电流信息进行采样,并且从系统电流执行用于检测电力系统事故的继电器计算 在单元之间传输的信息,多个单元被划分为具有预定电角度的周期的每个数据的多个时隙作为传输对象; 并且所述多个时隙包括用于在所述多个单元之间发送所述系统当前信息的第一时隙和用于发送采样时间的同步信号的第二时隙。
    • 6. 发明专利
    • Digital protection control unit and method of detecting abnormality thereof
    • 数字保护控制单元及其异常检测方法
    • JP2011160497A
    • 2011-08-18
    • JP2010017596
    • 2010-01-29
    • Hitachi Ltd株式会社日立製作所
    • KIDO MITSUYASUKOMATSU SHINJIYOSHIDA MASASHITAKAMI KAZUHISAITO EIJITSUBOI OSAMU
    • H02H3/05G01R31/00H03M1/10
    • PROBLEM TO BE SOLVED: To provide a digital protection control unit for monitoring trouble with a simple configuration while achieving high-speed sampling. SOLUTION: The digital protection control unit includes a harmonic generator for generating a harmonic signal, a plurality of analog filters for superposing and taking in a quantity of analog AC electricity of a power system and the harmonic signal for filtering, a plurality of A/D converters for converting an output of the analog filter to a digital quantity of electricity, a Fourier transform means of calculating an amplitude value and a phase value of the superposed harmonic signal from the output of the A/D converter, and a monitoring means of obtaining a phase deviation and an amplitude deviation from the phase value and the amplitude value calculated by the Fourier transform means, detecting abnormality in the A/D converter when the phase deviation is not larger than a fixed value, and detects abnormality of the analog filter when the phase deviation is larger than the fixed value. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于在实现高速采样的同时以简单的配置来监视故障的数字保护控制单元。 解决方案:数字保护控制单元包括用于产生谐波信号的谐波发生器,用于叠加和占用电力系统的模拟AC电量的多个模拟滤波器和用于滤波的谐波信号,多个 用于将模拟滤波器的输出转换为数字量的A / D转换器,从A / D转换器的输出计算叠加谐波信号的振幅值和相位值的傅里叶变换装置,以及监视 从所述相位值和由所述傅里叶变换装置计算出的振幅值获得相位偏差和幅度偏差的装置,当所述相位偏差不大于固定值时,检测所述A / D转换器中的异常,并检测所述A / D转换器的异常 模拟滤波器当相位偏差大于固定值时。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Signal name setting method and system
    • 信号名称设置方法和系统
    • JP2012014474A
    • 2012-01-19
    • JP2010150685
    • 2010-07-01
    • Hitachi Ltd株式会社日立製作所
    • TSUBOI OSAMUYOSHIOKA HIDEYUKI
    • G06F17/50
    • PROBLEM TO BE SOLVED: To provide a signal name setting method and its system which add a signal name which is not repeated, and surely and easily perform a signal name additional operation in a logic processing design.SOLUTION: The signal name setting method includes: a step which divides series of sequence logic into suitable sheet units; a step which in the signal name setting method for uniquely determining an input name and an output name for each sheet, assigns local signal names that are unique in the sheet to input and output of the sheet; a step which assigns a function name to the sheet which relates to a function of the sheet; a step which determines an output actual signal name that the local signal name is added after the function name, for the output of each sheet; a step which extracts the signal name and the function name of each sheet by associating these names; a step which determines the input of the other sheets that receive the output of the sheet by comparing input signal related information and output signal related information; and a step which replaces the determined input signal name with the output actual signal name of the sheet on a transmission side.
    • 要解决的问题:提供一种信号名称设置方法及其系统,其添加不重复的信号名称,并且可靠和容易地在逻辑处理设计中执行信号名称附加操作。 信号名称设置方法包括:将一系列序列逻辑分成合适的片单元的步骤; 在用于唯一地确定每个纸张的输入名称和输出名称的信号名称设置方法中,将在纸张中唯一的本地信号名称分配给纸张的输入和输出的步骤; 向纸张分配与纸张的功能相关的功能名称的步骤; 确定在功能名称之后添加本地信号名称的输出实际信号名称的步骤,用于每张纸张的输出; 通过关联这些名称来提取每张表的信号名称和功能名称的步骤; 通过比较输入信号相关信息和输出信号相关信息来确定接收片材输出的其它片材的输入的步骤; 以及用发送侧的纸张的输出实际信号名称替换所确定的输入信号名称的步骤。 版权所有(C)2012,JPO&INPIT