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41. 发明专利

JP2004357376A Measuring device for switchgear 审中-公开
标题翻译：用于开关的测量装置
公开(公告)号：JP2004357376A
公开(公告)日：2004-12-16
申请号：JP2003150174
申请日：2003-05-28
申请人： Hitachi Ltd , Japan Ae Power Systems Corp , 株式会社日本Aeパワーシステムズ , 株式会社日立製作所
发明人： ROKUNOHE TOSHIAKI , ENDO FUMIMASA , KIDO MITSUYASU , KIDA JUNZO
IPC分类号： G01R15/06 , G01R19/15 , G01R19/155 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To offer a measuring device for a switchgear, which reduces the addition of excessive surge voltage accompanying the opening and closing of a disconnecting switch to an electronic circuit and also is so arranged as to be hardly affected by an external electromagnetic field. SOLUTION: A detecting electrode 3 is counterposed to a high-voltage conductor 1 within a metallic container 2, and the detection signal by the detecting electrode 3 is taken out by a sealing terminal 4 which has sealed the opening of the metallic container 2, and a multiple container 9 is directly attached to the periphery of the metallic container 2 so as to surround the sealing terminal 4, and electronic parts such as a capacitor C2 on low voltage side, an inductance 7, an A/D converter 27, etc. are arranged within this multiple container 9, and the digital signal output of the A/D converter 27 is transmitted from a lead terminal 5. The multiple container 9 is of triple structure, and it is composed of an aluminum container 9a small in specific resistance, an iron container 9b being a magnetic substance, and a copper container 9c smaller in specific resistance. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于开关设备的测量装置，其减少了随着断开开关到电子电路的断开和闭合而引起的浪涌电压的增加，并且被布置成几乎不受外部电磁场。解决方案：检测电极3与金属容器2内的高电压导体1相对，检测电极3的检测信号由密封端子4取出，密封端子4密封金属容器的开口如图2所示，多容器9直接附接到金属容器2的周围，以包围密封端子4，并且电子部件如低压侧的电容器C2，电感7，A / D转换器27 等设置在该多个容器9内，并且A / D转换器27的数字信号输出从引线端子5传输。多个容器9具有三重结构，并且由铝容器9a 具有电阻率的铁容器9b和磁性物质的铁容器9b以及比电阻较小的铜容器9c。版权所有（C）2005，JPO＆NCIPI

42. 发明专利

JP2004274835A Digital protection/control device 审中-公开
公开(公告)号：JP2004274835A
公开(公告)日：2004-09-30
申请号：JP2003059695
申请日：2003-03-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOBAYASHI TAKASHI , KIDO MITSUYASU
IPC分类号： H02H3/05
摘要： PROBLEM TO BE SOLVED: To provide a digital protection/control device for neither outputting of inappropriate operation command nor stopping of protection/control function even if a single failure occurs. SOLUTION: Protection/control calculation parts 1a, 1b, 1c, three series in all, are provided in parallel where protection/control calculation is performed according to a prescribed protection/control calculation algorithm based on an analogue input signal from a power system 101, a digital signal from a high-order computer 103, and the information of an external equipment 102, for outputting digital protection/control data. A majority vote circuit 1d selects by majority vote an operation command output among those of the protection/control calculation parts 1a, 1b, and 1c. Even if a single failure occurs at any of the digital protection/control calculation parts 1a, 1b, and 1c, an appropriate operation command is outputted to a power grid 101, for continuous operation, with no interruption of a function. COPYRIGHT: (C)2004,JPO&NCIPI

43. 发明专利

JP2014064396A Protection controller, and current differential protective relay device 有权
标题翻译：保护控制器和电流差动保护继电器
公开(公告)号：JP2014064396A
公开(公告)日：2014-04-10
申请号：JP2012208222
申请日：2012-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAMI KAZUHISA , KIDO MITSUYASU , YOSHIDA MASASHI
IPC分类号： H02H3/28 , H02H3/02
摘要： PROBLEM TO BE SOLVED: To provide a protection controller and a current differential protective relay device in combination of a dedicated power communication network with a LAN communication.SOLUTION: A protection controller 100 includes AI (Analog Input) means 1, A/D conversion means 2, TIM (Timing) control means 3, calculation means 4, output means 5, synchronization correction controller 6, LAN communication means 7, and transmission controller 10. The transmission controller 10 cyclically exchanges data through a dedicated line communication network to synchronize sampling synchronous timing with an opposite end. The LAN communication means 7 exchanges data by cyclically transferring packets through an internet protocol communication network to synchronize sampling synchronous timing with the opposite end. The synchronization correction controller 6 corrects sampling synchronization to synchronize the sampling synchronous timing of the transmission controller 10 with the sampling synchronous timing of the LAN communication means 7.
摘要翻译：要解决的问题：提供保护控制器和电流差动保护继电器组合在一起的专用电力通信网络与LAN通信。解决方案：保护控制器100包括AI（模拟输入）装置1，A / D转换装置 2，TIM（定时）控制装置3，计算装置4，输出装置5，同步校正控制器6，LAN通信装置7和传输控制器10.传输控制器10通过专用线路通信网络循环地交换数据以同步采样同步时间与另一端。 LAN通信装置7通过互联网协议通信网络周期性地传送分组来交换数据，以将采样同步定时与相对端同步。同步校正控制器6校正采样同步，使发送控制器10的采样同步定时与LAN通信装置7的采样同步定时同步。

44. 发明专利

JP2011234467A Protection relay 有权
标题翻译：保护继电器
公开(公告)号：JP2011234467A
公开(公告)日：2011-11-17
申请号：JP2010101601
申请日：2010-04-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMATSU SHINJI , KIDO MITSUYASU , ITO EIJI , TSUBOI OSAMU , YOSHIOKA HIDEYUKI
IPC分类号： H02H3/02
摘要： 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.
摘要翻译：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

45. 发明专利

JP2011200100A Protection relay system and protective relay device 有权
标题翻译：保护继电器系统和保护继电器
公开(公告)号：JP2011200100A
公开(公告)日：2011-10-06
申请号：JP2010242953
申请日：2010-10-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA MASASHI , KIDO MITSUYASU , TAKAMI KAZUHISA , TSUBOI OSAMU , ITO EIJI
IPC分类号： H02H3/28 , H02H3/02
摘要： 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.
摘要翻译：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。

46. 发明专利

JP2011160497A Digital protection control unit and method of detecting abnormality thereof 有权
标题翻译：数字保护控制单元及其异常检测方法
公开(公告)号：JP2011160497A
公开(公告)日：2011-08-18
申请号：JP2010017596
申请日：2010-01-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIDO MITSUYASU , KOMATSU SHINJI , YOSHIDA MASASHI , TAKAMI KAZUHISA , ITO EIJI , TSUBOI OSAMU
IPC分类号： H02H3/05 , G01R31/00 , H03M1/10
摘要： 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
摘要翻译：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

47. 发明专利

JP2011155728A Protective relay device 有权
标题翻译：保护继电器
公开(公告)号：JP2011155728A
公开(公告)日：2011-08-11
申请号：JP2010013995
申请日：2010-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMATSU SHINJI , ITO EIJI , KIDO MITSUYASU
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To provide a protective relay device wherein it is possible to prevent human errors, achieve user interface that enhances the efficiency of setting acknowledgement work by a manager, and maintain reliability and excellent maintainability. SOLUTION: The protective relay device includes multiple protective relays that determine the magnitude of the electrical quantity of a power system, compare it with a set value stored in a setting memory, and give output for operating a circuit breaker in the power system. The protective relay device further includes: a management memory for changing the set value; a setting applicant program for performing setting application processing on a protective relay setting element by a setting applicant and storing setting elements, new set values, and flags indicating the states of application processing in the management memory and managing them; and a setting acknowledger program for performing setting acknowledgement processing on a protective relay setting element by a setting acknowledger and transferring an acknowledged new set value stored in the management memory to a setting memory. When each program is executed, the qualification of the setting applicant or the setting acknowledger is confirmed and the setting applicant and the setting acknowledger must not be an identical person. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以防止人为错误的保护性中继装置，实现提高管理者确认工作的效率的用户界面，并且保持可靠性和优异的可维护性。
解决方案：保护继电器装置包括多个保护继电器，用于确定电力系统的电量的大小，将其与存储在设定存储器中的设定值进行比较，并给出用于在电力系统中操作断路器的输出。保护性中继装置还包括：管理存储器，用于改变设定值; 设置申请人程序，用于通过设置申请人对保护性中继设置单元执行设置应用处理，并将设置元素，新设置值和指示应用处理状态的标志存储在管理存储器中并进行管理; 以及设置确认程序，用于通过设置确认器对保护性中继设置单元执行设置确认处理，并将存储在管理存储器中的确认的新设置值传送到设置存储器。当执行每个程序时，确认设置申请人或设置确认者的资格，并且设置申请人和设置确认者不能是相同的人。版权所有（C）2011，JPO＆INPIT

48. 发明专利

JP2011155158A Hybrid wound cord, and hybrid current transformer 有权
标题翻译：混合绕组和混合电流互感器
公开(公告)号：JP2011155158A
公开(公告)日：2011-08-11
申请号：JP2010016113
申请日：2010-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAMIKATA KIYONORI , MORI SHIGERU , KIDO MITSUYASU
IPC分类号： H01F27/24 , H01F27/25 , H01F38/20
摘要： PROBLEM TO BE SOLVED: To improve accuracy in the vicinity of the detectable level in a small-current input range by reducing distortion of secondary output waveform of the current transformer due to D.C. biased magnetization while reducing the size and weight of a current transformer and those of a core (wound core) used therefor. SOLUTION: This hybrid wound core includes a first core formed by providing a measures to reduce residual magnetic flux to a wound core of a directional silicon steel plate, and a second core formed of a high permeability material, and has a structure with the first core and the second core integrated with each other. In this hybrid current transformer, the hybrid wound core is used as a core of the current transformer. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了通过减小电流互感器由于DC偏置磁化而引起的二次输出波形的失真，从而在减小电流的大小和重量的同时，在小电流输入范围内提高可检测电平附近的精度变压器和用于其的芯（卷芯）的变压器。解决方案：该混合卷绕芯包括通过提供减小对定向硅钢板的卷绕芯的剩余磁通量的措施形成的第一芯和由高磁导率材料形成的第二芯，并且具有第一核心和第二核心相互融合。在这种混合电流互感器中，混合绕组磁芯用作电流互感器的核心。版权所有（C）2011，JPO＆INPIT

49. 发明专利

JP2010104148A Digital protection control device, and power supply ripple monitoring substrate and power supply ripple monitoring method for the same 审中-公开
标题翻译：数字保护控制装置和电源纹波监测基板及其电源纹波监测方法
公开(公告)号：JP2010104148A
公开(公告)日：2010-05-06
申请号：JP2008273286
申请日：2008-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIDO MITSUYASU , OMORI YASUKIMI , YOSHIDA MASASHI , SATO MITSUO , NAGAYAMA KAZUYUKI
IPC分类号： H02H3/05 , G01R31/00
摘要： PROBLEM TO BE SOLVED: To calculate a ripple of a power supply 1g, which deteriorates with time, of a digital protection control device 100, indicate the current state of deterioration and the time to a failure, thereby improving maintainability. SOLUTION: A power supply ripple monitoring substrate 1h is installed in an available region of the digital protection control device 100 having an available mount region. The power supply ripple monitoring substrate 1h is provided with a peak hold means for holding a peak of a power supply voltage, and an indicator part 1i for indicating information in accordance with the output of the power supply ripple monitoring substrate. The output of the power supply ripple monitoring substrate can be also transmitted to the outside via a network 1k. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了计算数字保护控制装置100的随着时间劣化的电源1g的纹波，指示恶化的当前状态和故障时间，从而提高可维护性。解决方案：电源纹波监测基板1h安装在具有可用安装区域的数字保护控制装置100的可用区域中。电源纹波监视基板1h具有用于保持电源电压的峰值的峰值保持装置和用于根据电源纹波监视基板的输出来指示信息的指示器部分1i。电源纹波监视基板的输出也可以经由网络1k发送到外部。版权所有（C）2010，JPO＆INPIT

50. 发明专利

JP2009268162A Protective relay 审中-公开
标题翻译：保护继电器
公开(公告)号：JP2009268162A
公开(公告)日：2009-11-12
申请号：JP2008110860
申请日：2008-04-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIDO MITSUYASU , YOSHIDA MASASHI , SATO MITSUO , NAGAYAMA KAZUYUKI
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To eliminate software installation by digitalization using a microcomputer to render a protective relay programless, construct all the computation units of dedicated hardware to visualize their configuration and operation, improve characteristic degradation in protective performance due to initial value variation and secular variation in analog circuit elements, and improve the respect that failure in a single part leads to malfunction of a protective relay.
SOLUTION: A circuit required for each protective relay is achieved by a digital circuit, typified by adder circuit, multiplier circuit, and memory circuit, without installing a microcomputer. It is achieved by FPGA (Field Programmable Gate Array) that makes it possible to optionally install a logic circuit. High-density mounting is implemented by combining and connecting these circuits in parallel or series. Prior to installation, their functions are verified by hardware simulation.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了通过数字化使用微型计算机消除软件安装，使无保护继电器无编程，构建专用硬件的所有计算单元以显示其配置和操作，从而改善由于初始值变化而引起的保护性能的特性劣化和模拟电路元件的长期变化，并且改善了单个部件中的故障导致保护继电器故障的方面。
解决方案：每个保护继电器所需的电路是通过加法器电路，乘法器电路和存储器电路代表的数字电路实现的，而无需安装微型计算机。它通过FPGA（现场可编程门阵列）实现，可以选择安装逻辑电路。通过并联或串联组合和连接这些电路来实现高密度安装。在安装之前，通过硬件仿真验证其功能。版权所有（C）2010，JPO＆INPIT

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