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11. 发明专利

JP2005300206A Cable status monitoring device 审中-公开
标题翻译：电缆状态监测装置
公开(公告)号：JP2005300206A
公开(公告)日：2005-10-27
申请号：JP2004113044
申请日：2004-04-07
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日立製作所
发明人： KATO TATSURO , TATEMI MASARU , ONO YASUNORI , SHIMAMURA HIDEHIKO , ENDO YOSHITO , WADA YUICHI , KASASHIMA TAKASHI
IPC分类号： G01R31/02
摘要： PROBLEM TO BE SOLVED: To monitor the cable status with a high confidence while suppressing the malfunction and incorrect determination in the cable status monitoring.
SOLUTION: The direction of the measured signal is determined by measuring the zero phase voltage and the zero phase current at each detection point for deterioration diagnosis of a cable under operation. For measuring the current pulse, a current sensor having ≥50 kHz frequency response characteristics is used and the sampling frequency for sufficiently detecting the oscillation wave form is made ≥50 kHz.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在抑制故障和电缆状态监视中的错误确定的同时，以高置信度监视电缆状态。
解决方案：测量信号的方向通过测量每个检测点处的零相电压和零相电流来确定，用于在运行中的电缆的劣化诊断。为了测量电流脉冲，使用具有≥50kHz频率响应特性的电流传感器，并且用于充分检测振荡波形的采样频率为≥50kHz。版权所有（C）2006，JPO＆NCIPI

12. 发明专利

JP2004274812A Method for supporting to maintain power quality in distribution system and system 审中-公开
公开(公告)号：JP2004274812A
公开(公告)日：2004-09-30
申请号：JP2003058448
申请日：2003-03-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UCHIYAMA TOMOYUKI , ONO YASUNORI , WATANABE SHIGERU , SAITO KATSUAKI , KASHIWAKURA JUN , SHIMAMURA HIDEHIKO , TANIGUCHI YOICHIRO
IPC分类号： H02J3/38 , H02J3/46
摘要： PROBLEM TO BE SOLVED: To maintain the power quality in a distribution system in which many distributed power sources are linked. SOLUTION: A quality control center 1 delivers and receives the information to and from a distribution and transformer station control system 3 and each customer via communication lines 41, 42. The quality control center 1 monitors the system state of the customers' power source operation data and distribution system on line. As a result, if a voltage control value is deviated, the quality control center 1 selects the corresponding system control device and the customer's distributed power source, cooperates them, calculates their control values, and transmits the control values to the customer (for example, A) and the distribution and transformer station control system 3. COPYRIGHT: (C)2004,JPO&NCIPI

13. 发明专利

JP2004254369A Power line short circuit protection relay system 有权
公开(公告)号：JP2004254369A
公开(公告)日：2004-09-09
申请号：JP2003039812
申请日：2003-02-18
申请人： Hitachi Ltd , Tohoku Electric Power Co Inc , 東北電力株式会社 , 株式会社日立製作所
发明人： NISHIJIMA KAZUO , SHIMAMURA HIDEHIKO , NAGAOKA KAZUTOSHI , WADA MASARU
IPC分类号： H02H7/26
摘要： PROBLEM TO BE SOLVED: To eliminate complications in consideration and reviewing affairs of a power line short circuit protection relay system, including an operation control, that follows the modification of an operation mode of a power distribution grid, and to provide a power line short circuit protection relay system which is optimum for the power distribution grid.
SOLUTION: Overcurrent detecting elements OCR, HOC and OCF output a cut-off signal (FCB trip signal) for isolating the shorted power line based on a power line current from the power line grid to each power line tap breaker CB, when short circuit occurs in the power line grid in which either a tree-like operation that distributes power to customers through a tree-like power distribution line that branches by a plurality of numbers from a power line bus bar, or a loop operation where the tree-like power distribution lines are combined is selected. This short circuit protection relay system comprises an overcurrent-detecting element OCR1 having anti time limit characteristics in the tree-like operation of a power line, an overcurrent-detecting element OCR2 having strong anti time limit characteristics in the loop operation of the power line, and loop operation information capturing means A to D for selectively switching outputs of the overcurrent-detecting elements OCR1 and OCR2 according to the state of the loop operation.
COPYRIGHT: (C)2004,JPO&NCIPI

14. 发明专利

JP2012005277A Reactive power compensation device having power current calculation function, and system and method thereof 有权
标题翻译：具有功率电流计算功能的反应电力补偿装置及其系统及方法
公开(公告)号：JP2012005277A
公开(公告)日：2012-01-05
申请号：JP2010138930
申请日：2010-06-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATABE HIDEYUKI , OMORI TAKAHIRO , SHIMAMURA HIDEHIKO
IPC分类号： H02J3/16
CPC分类号： Y02E40/34
摘要： PROBLEM TO BE SOLVED: To provide a reactive power compensation device in which an entire distribution system holds a voltage within a constant proper range.SOLUTION: A reactive power compensation device 31 stabilizes a voltage of a distribution system by controlling a reactive power that is injected into the distribution system, based on a voltage command reference value 14 and measurement information of the distribution system. The reactive power compensation device 31 further includes a voltage command correction circuit 21 which has a power current calculation function that uses a distribution line model of the distribution system. The measurement information of the distribution system at a point different from the installation point of the reactive power compensation device 31 is inputted into the voltage command correction circuit 21. The power current calculation is made based on the measurement information of the distribution system. In order that the voltage of the entire power system comes to be within a constant range, the voltage command reference value 14 is corrected with the output of a voltage command correction amount of the voltage command correction circuit 21.
摘要翻译：要解决的问题：提供一种无功补偿装置，其中整个分配系统将电压保持在恒定的适当范围内。解决方案：无功补偿装置31基于电压指令基准值14和分配系统的测量信息，通过控制注入分配系统的无功功率来稳定配电系统的电压。无功补偿装置31还包括电压指令校正电路21，该电压指令校正电路21具有使用分配系统的分配线模型的功率电流计算功能。在与无功补偿装置31的安装点不同的点处的分配系统的测量信息被输入到电压指令校正电路21中。根据分配系统的测量信息进行功率电流计算。为了使整个电力系统的电压达到恒定范围内，电压指令校正电路21的电压指令校正量的输出校正电压指令基准值14.＆lt; COPYRIGHT：（C ）2012，JPO＆INPIT

15. 发明专利

JP2011250580A Distribution system disconnection detecting device, distribution system disconnection detecting system, inspection device, repeating device, control device and distribution system disconnection detecting method 有权
标题翻译：分配系统断开检测装置，分配系统断开检测系统，检查装置，重复装置，控制装置和分配系统断开检测方法
公开(公告)号：JP2011250580A
公开(公告)日：2011-12-08
申请号：JP2010121118
申请日：2010-05-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE MASAHIRO , MATSUZAKI TAKAO , SHIMAMURA HIDEHIKO , TAKAHASHI HIROTAKA , ADACHI MASAHIRO , ONISHI TSUKASA
IPC分类号： H02H7/26 , H02J13/00
CPC分类号： Y02E60/725 , Y04S10/20
摘要： PROBLEM TO BE SOLVED: To detect a disconnection of a distribution system with high accuracy using the information of an electricity meter.SOLUTION: An alarm information is sent from an inspection device 50 to an aggregation center 41 when an electrical energy of the inspection device 50 installed in a house which demands low-voltage distribution system or a measured value of voltage becomes within the scope which has the possibility of disconnection. At an aggregation center 4, a terminal group 37 to which the inspection device 50 related to the alarm information belongs and a pole transformer 32 are specified. The above information is checked with a disconnection part database to specify a disconnection occurrence section in a high-voltage distribution system.
摘要翻译：要解决的问题：使用电表的信息来高精度地检测配电系统的断开。
解决方案：当安装在需要低压配电系统的房屋中的检查装置50的电能或电压的测量值在范围内时，从检查装置50向聚集中心41发送报警信息这有可能断开连接。在聚集中心4处，指定与报警信息相关的检查装置50所属的终端组37和极变压器32。用断开部分数据库检查上述信息以指定高压分配系统中的断开发生部分。版权所有（C）2012，JPO＆INPIT

16. 发明专利

JP2010187293A Demodulating device for power-line carrier communication 审中-公开
标题翻译：用于电力线载波通信的解调装置
公开(公告)号：JP2010187293A
公开(公告)日：2010-08-26
申请号：JP2009031241
申请日：2009-02-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMAMURA HIDEHIKO
IPC分类号： H04B3/54
摘要： PROBLEM TO BE SOLVED: To demodulate a signal while adapting to changes in time constant of a zero-phase circuit in a demodulating device for power-line carrier communication that executes communication by utilizing a zero-phase of a three-phase power line.
SOLUTION: A demodulating device 10 of a receiving system 1 for power-line carrier communication (refer to Fig.1) includes a level setting part 21 that calculates a time constant, varying according to a ground impedance, of a zero-phase circuit so as to calculate a detection level for determining the magnitude of amplitude of a signal waveform received on the basis of the time constant. The demodulating device 10 also includes a reference-clock generating part 27 that calculates a time delay of a transmission code varying according to the time constant of the zero-phase circuit so as to generate a demodulation clock on the basis of the time delay.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了解调信号，同时适应用于通过利用三相电源的零相执行通信的电力线载波通信的解调装置中的零相电路的时间常数的变化线。解决方案：用于电力线载波通信的接收系统1的解调装置10（参照图1）包括：电平设定部分21，其根据接地阻抗计算零点位置的时间常数，以便根据时间常数来计算用于确定接收到的信号波形的振幅幅度的检测电平。解调装置10还包括基准时钟生成部27，其计算根据零相电路的时间常数而变化的发送码的时间延迟，以便根据时间延迟来生成解调时钟。版权所有（C）2010，JPO＆INPIT

17. 发明专利

JP2005341666A Device for preventing single-operation 有权
标题翻译：防止单一操作的装置
公开(公告)号：JP2005341666A
公开(公告)日：2005-12-08
申请号：JP2004154476
申请日：2004-05-25
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日立製作所
发明人： KIMURA YASUTAKA , OGAWA KENJI , SHIMAMURA HIDEHIKO , KAWASE MINORU , YOSHINAGA ATSUSHI , TAKI YOSHIHARU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To prevent single operation by surely stopping a dispersed power source where two or more units are interconnected to a low-voltage system at the accident of a high-voltage distribution system. SOLUTION: At the time of an accident of a high-voltage distribution line 140, this single operation preventing device stops the dispersed power source without fail, by opening a switch 20 by means of a switch controller 32 and closing a switch 51 so that it is not single operation, thereby making the demand and supply imbalanced. For this reason, this is equipped with a voltage computer 31, which calculates the effective values of the zero-phase voltage and the line voltage of a high-voltage system, an accident-detecting arithmetic unit 41 which detects grounding or a short-circuit accident in an accident; a switch controller 32 which controls the switch 20 in a low-voltage distribution line 150 and the switch 51 in a resisting short-circuit 50; and the resisting short-circuit 50, which short-circuits the two phases of the low-voltage distribution line 150. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在高压配电系统发生事故时将两个或多个单元互连到低压系统的分散电源的可靠停止的单次操作。解决方案：在高压配电线路140发生事故时，该单个操作防止装置通过利用开关控制器32打开开关20并闭合开关51来停止分散的电源。使其不单一运作，从而使供需不平衡。因此，配备有电压计算机31，其计算高压系统的零相电压和线电压的有效值，检测接地或短路的事故检测运算单元41 发生意外事故开关控制器32，其在低压配线150中控制开关20，开关51在耐电短路50中控制; 和抗电路短路50，这使低压配电线路150的两相短路。（C）2006年，JPO＆NCIPI

18. 发明专利

JP2003319558A Distribution system and zero-phase circuit regulating device for distribution system 审中-公开
标题翻译：分配系统和分布式系统的零相电路调节装置
公开(公告)号：JP2003319558A
公开(公告)日：2003-11-07
申请号：JP2002116933
申请日：2002-04-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIJIMA KAZUO , SHIMAMURA HIDEHIKO , SHIBATA EKIZO
IPC分类号： H02H7/26 , H02J3/18
CPC分类号： Y02E40/30
摘要： PROBLEM TO BE SOLVED: To provide a distribution line protection system capable of attaining a stable operation of a protective relay in the event that the distribution line has some accident. SOLUTION: This system regulates various types of electric variables of the zero-phase circuit by intensively or dispersively mounting an impedance component adjusting function necessary for directly changing the zero-phase circuit constant in the distribution equipment or the distribution line mounted on the distribution system. To solve the above issue, capacitor capacitance is previously assembled in between the grounds of each of phase in the distribution equipment installed on the distribution line, and ground electrostatic capacity is adjusted. In particular, this system provides ground fault current which the protective relay mounted on a distribution line outlet in the event of an accident such as the distribution line ground fault, becomes a stable operation area, by intensively or dispersively mounting the distribution equipment with the ground electrostatic capacity on the distribution line. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够在分配线发生事故的情况下能够实现保护继电器的稳定运行的配电线路保护系统。
解决方案：该系统通过集中或分散地安装在直接改变配电设备中的零相电路常数所需的阻抗分量调节功能或安装在线路上的配电线路来调节零相电路的各种类型的电变量分发系统。为了解决上述问题，电容器电容预先组装在安装在配电线路上的配电设备中的每个相的接地之间，并且调整地电静电容量。特别地，该系统提供接地故障电流，在配电线路接地故障等事故发生时，安装在配电线路出口的保护继电器成为稳定运行区域，通过集中或分散地将配电设备与地面相连配电线路上的静电容量。版权所有（C）2004，JPO

19. 发明专利

JPS62295180A METHOD FOR SUPPORTING PATTERN GENERATION 失效
公开(公告)号：JPS62295180A
公开(公告)日：1987-12-22
申请号：JP13809686
申请日：1986-06-16
申请人： HITACHI LTD
发明人： SHIMAMURA HIDEHIKO
IPC分类号： G06F17/50
摘要： PURPOSE:To improve the efficiency of pattern generation and maintenance by independently separating picture information from a display function, adding a function for reading the picture information to a program having the display function and selectively executing a display command corresponding to the picture information. CONSTITUTION:The picture information, i.e., character or graphic information or the like to be displayed, is previously stored in an external memory 110 and a program having a function for displaying the picture information as a concrete picture and a function reading necessary picture information is stored in an external memory 110. In case of displaying the formed picture on a display device 30, the storing position of the picture information to be displayed is instructed and the program stored in the memory 120 is executed. The executed program reads out the picture information from the instructed storing position and displays a picture corresponding to the picture information on the display device 30.

20. 发明专利

JPS6162109A Control panel inspection instrument 失效
标题翻译：控制面板检查仪器
公开(公告)号：JPS6162109A
公开(公告)日：1986-03-31
申请号：JP18263284
申请日：1984-09-03
申请人： Hitachi Ltd
发明人： SASAKI RYOICHI , SHINTANI SADANORI , DOMOTO SHOZO , NISHIMOTO KOICHI , SHIMAMURA HIDEHIKO
IPC分类号： G01R31/28 , G05B23/02
CPC分类号： G05B23/02 , F24F11/30
摘要： PURPOSE:To substantially reduce the number of elements selectively operated and to reduce the simulation time by automatically setting initial condition only for the element group which relates to the element of which output results are required. CONSTITUTION:A control panel monitoring device 20 is composed of design results a monitoring device 100 and a products monitoring device 200 and also an M/T 300 which connects these two devices. Also a pattern input system 50 of the device 100 consists of a mainframe computer 51, an input device 52, and a graphic display 53. Since it is possible to automatically set the initial condition only for the element group which relates to the element whose output results are required to be monitored, the object of simulation can be limited. Namely, operation at each time is necessary while establishment of initial value is only one time, therefore processing time will be reduced by limiting the object of operation. Thus, the number of elements to be selectively processed will be reduced and simulation time will be substantially shortened.
摘要翻译：目的：大大减少选择性操作的元件数量，并通过自动设置初始条件来减少模拟时间，只对与需要输出结果的元件有关的元件组进行设置。构成：控制面板监视装置20由设计结果构成监视装置100和产品监视装置200以及连接这两个装置的M / T 300。装置100的图案输入系统50也由主机计算机51，输入装置52和图形显示器53组成。由于可以仅针对与输出元件相关的元件组自动设定初始条件需要监控结果，可以限制模拟对象。即，在初始值的设定仅为一次的情况下，需要每次操作，因此通过限制操作对象来减少处理时间。因此，要选择处理的元件的数量将减少，并且模拟时间将显着缩短。

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