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1. 发明申请

US20090174976A1 CURRENT DIFFERENTIAL RELAY DEVICE, SIGNAL PROCESSING METHOD THEREOF AND POWER TRANSMISSION LINE PROTECTION SYSTEM 有权
标题翻译：电流差动继电器，信号处理方法及电力传输线路保护系统
公开(公告)号：US20090174976A1
公开(公告)日：2009-07-09
申请号：US12280494
申请日：2007-02-28
申请人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
发明人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
IPC分类号： H02H3/28
CPC分类号： H02H3/28
摘要： Two current differential relay devices 1 are installed at each terminal 3 of a two-terminal power transmission line 2, and connected to each other via two transmission paths 5 and 6, and perform current differential operations by transmitting and receiving the quantity data of electricity to each other. In the current differential relay device 1, two transmission means 14 normally each perform communications with the current differential relay device 1 of the other end of the power transmission line in parallel through the two transmission paths 5 and 6. Two current differential operation means 14 are connected to the two transmission means 14 respectively and perform independently two-series of current differential operations independently for each series associated with each of the transmission paths 5 and 6. The signal generation means 20 obtains the logical disjunction of the two-series of current differential operation results by means of the logical disjunction means 21 and uses the logical disjunction to generate a trip signal by means of the sequence operation means 15. The present invention provides a highly reliable current differential relay device of a high operating ratio which is capable of continuing the power transmission line protection function without any discontinuation even when one of the duplexed transmission paths has a transmission defect, as well as providing a signal processing method for the current differential relay device and a power transmission line protection system.
摘要翻译：两个电流差动继电器装置1安装在两端电力传输线2的每个端子3处，并且经由两个传输路径5和6彼此连接，并通过发送和接收电量数据来执行电流差分操作彼此。在电流差动继电器装置1中，两个发送装置14通常通过两个传输路径5和6并行地与电力传输线的另一端的电流差动中继装置1进行通信。两个电流差动装置14是分别连接到两个传输装置14，并且独立地对与每个传输路径5和6相关联的每个系列独立地执行两系列电流差分操作。信号产生装置20获得两系列电流差动的逻辑分离通过逻辑分离装置21进行操作结果，并使用逻辑分离通过顺序操作装置15产生跳闸信号。本发明提供了一种高可靠性的高动作比的电流差动继电器装置，其能够继续输电线路保护功能无任何停电即使其中一个双工传输路径具有传输缺陷，以及为电流差动中继装置和输电线路保护系统提供信号处理方法。

2. 发明授权

US08218278B2 Current differential relay device, signal processing method thereof and power transmission line protection system 有权
标题翻译：电流差动继电器，信号处理方法及输电线路保护系统
公开(公告)号：US08218278B2
公开(公告)日：2012-07-10
申请号：US12280494
申请日：2007-02-28
申请人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
发明人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
IPC分类号： H02H3/00 , H02H7/26
CPC分类号： H02H3/28
摘要： A current differential relay device is described. The device has two transmission parts provided in parallel and communicating with an other end of a power transmission line through two transmission paths and transmitting and receiving a quantity data of electricity of each of the terminals to and from an other end in the form of the digital data obtained through analog/digital conversion. Two current differential operation parts are connected to each of the two transmission parts and perform a current differential operation independently for each of the transmission paths by using the digital data of the quantity data of electricity of the one end of the power transmission line and of the other end of the power transmission line. A signal generation part generates a trip signal from the current differential operation result of the two current differential operation parts.
摘要翻译：描述电流差动继电器装置。该装置具有并联设置的两个传输部分，并且通过两条传输路径与电力传输线的另一端通信，并且以数字形式向另一端发送和接收每个终端的电量的数量通过模拟/数字转换获得的数据。两个电流差分操作部分连接到两个传输部分中的每一个，并且通过使用电力传输线的一端的电力的数量数据的数字数据和输电线路另一端。信号生成部根据两个电流差动运转部的电流差运算结果生成跳闸信号。

3. 发明授权

US06714148B1 Digital protective relay 有权
标题翻译：数字保护继电器
公开(公告)号：US06714148B1
公开(公告)日：2004-03-30
申请号：US09628305
申请日：2000-07-28
申请人： Masamichi Saga , Itsuo Shuto
发明人： Masamichi Saga , Itsuo Shuto
IPC分类号： H03M100
CPC分类号： H02H3/006
摘要： A digital protective relay comprises a protective relay arithmetic processing unit for judging, based on a relay judgement quantity obtained by converting a system electric quantity into a digital value, whether in an operating state or in a non-operating state, and a time synchronizing unit for inputting a time reference signal from outside and synchronizing an internal timer of the digital protective relay with an external reference time. The time synchronizing unit includes an A/D converting unit for A/D converting the time reference signal inputted from outside with a resolution of at least 2 bits, and a decoding unit for decoding a time code signal by making a judgement as to a magnitude of the time reference signal with respect to a digital value obtained by the A/D converting unit.
摘要翻译：数字保护继电器包括保护继电器算术处理单元，用于基于通过将系统电量转换为数字值而获得的继电器判断量，判断是处于工作状态还是非工作状态，以及时间同步单元用于从外部输入时间参考信号并使数字保护继电器的内部定时器与外部参考时间同步。时间同步单元包括A / D转换单元，用于以至少2比特的分辨率对从外部输入的时间参考信号进行A / D转换;以及解码单元，用于通过对幅度进行判断来解码时间码信号的时间参考信号相对于由A / D转换单元获得的数字值。

4. 发明授权

US06678134B2 Digital protective relay system 有权
标题翻译：数字保护继电器系统
公开(公告)号：US06678134B2
公开(公告)日：2004-01-13
申请号：US09971060
申请日：2001-10-05
申请人： Hideaki Sugiura , Itsuo Shuto , Hachidai Ito , Masamichi Saga
发明人： Hideaki Sugiura , Itsuo Shuto , Hachidai Ito , Masamichi Saga
IPC分类号： H02H300
CPC分类号： H02H7/261 , H02H1/0061 , H02H3/28
摘要： A digital protective relay system is capable of making sampling timing the same among plural protective relay device which operate independent from each other by using a signal from a GPS satellite. The sampling timing is made the same regardless of the time lag from which it is sent downstream with the concomitant transmission delay time in the case of data communications, or regardless of the time lag from which it is sent upstream.
摘要翻译：数字式保护继电器系统能够通过使用来自GPS卫星的信号使彼此独立工作的多个保护用继电器中的采样定时相同。无论在数据通信的情况下伴随的传输延迟时间，或者不管从哪里发送到上游的时间滞后，采样定时都是相同的，无论其在下游发送的时间滞后。

5. 发明申请

US20120229946A1 PROTECTION RELAY 有权
标题翻译：保护继电器
公开(公告)号：US20120229946A1
公开(公告)日：2012-09-13
申请号：US13476419
申请日：2012-05-21
申请人： Hiroyuki SHIRAKAWA , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
发明人： Hiroyuki SHIRAKAWA , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
IPC分类号： H02H3/20
CPC分类号： H02H3/02 , H02H1/0007 , H02H3/20 , H03K17/7955
摘要： According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
摘要翻译：根据一个实施例，提供了一种保护继电器。保护继电器包括根据外部输入电压是否大于预设阈值电压来检测外部设备的状态的输入电路。输入电路包括通过在外部输入电压高于或等于阈值电压时将外部输入电压分压的分压电阻获得的分压使导通的开关单元和由常数操作的光电耦合器提供恒定电流的恒流输出电路的电流，并且当切换单元导通时，将操作信号输出到操作单元。

6. 发明授权

US09275793B2 Current input converter 有权
标题翻译：电流输入转换器
公开(公告)号：US09275793B2
公开(公告)日：2016-03-01
申请号：US13476588
申请日：2012-05-21
申请人： Yusuke Yanagihashi , Hiroyuki Shirakawa , Toshio Tanaka , Hiroyuki Maehara , Noriyoshi Suga , Itsuo Shuto
发明人： Yusuke Yanagihashi , Hiroyuki Shirakawa , Toshio Tanaka , Hiroyuki Maehara , Noriyoshi Suga , Itsuo Shuto
IPC分类号： G01R19/25 , H01F38/30
CPC分类号： H01F38/30 , H01F27/2852 , H01F2027/065
摘要： According to one embodiment, a current input converter includes a first metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one end of a primary-side coil of the transformer, and connects the terminal table and the one end of the primary-side coil of the transformer to each other, and a second metal plate having a solid shape, which has one end attached to the terminal table and one other end attached to one other end of the primary-side coil of the transformer, and connects the terminal table and the other end of the primary-side coil of the transformer to each other.
摘要翻译：根据一个实施例，电流输入转换器包括具有固体形状的第一金属板，其一端连接到端子台，另一端附接到变压器的初级侧线圈的一端，并将端子所述变压器的所述一次侧线圈的一端彼此相对，并且具有固体形状的第二金属板，所述第二金属板的一端附接到所述端子台，并且另一端附接到所述初级侧线圈的另一端，并且将端子台与变压器的一次侧线圈的另一端相互连接。

7. 发明授权

US08861163B2 Protection relay 有权
标题翻译：保护继电器
公开(公告)号：US08861163B2
公开(公告)日：2014-10-14
申请号：US13476419
申请日：2012-05-21
申请人： Hiroyuki Shirakawa , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
发明人： Hiroyuki Shirakawa , Yusuke Yanagihashi , Hiroyuki Maehara , Toshio Tanaka , Noriyoshi Suga , Itsuo Shuto
IPC分类号： H02H3/20 , H02H3/02 , H03K17/795
CPC分类号： H02H3/02 , H02H1/0007 , H02H3/20 , H03K17/7955
摘要： According to one embodiment, there is provided a protection relay. The protection relay includes an input circuit that detects a state of an external device according to whether or not an external input voltage is larger than a preset threshold voltage. The input circuit includes switching unit that is made conductive by a divided voltage obtained by voltage-dividing resistors that divide the external input voltage when the external input voltage is higher than or equal to the threshold voltage, and a photocoupler that is operated by a constant current of a constant current output circuit supplying a constant current and outputs an operation signal to the operation unit when the switching unit is made conductive.
摘要翻译：根据一个实施例，提供了一种保护继电器。保护继电器包括根据外部输入电压是否大于预设阈值电压来检测外部设备的状态的输入电路。输入电路包括通过在外部输入电压高于或等于阈值电压时将外部输入电压分压的分压电阻获得的分压使导通的开关单元和由常数操作的光电耦合器提供恒定电流的恒流输出电路的电流，并且当切换单元导通时，将操作信号输出到操作单元。

8. 发明授权

US06847691B2 Time synchronizing system 失效
标题翻译：时间同步系统
公开(公告)号：US06847691B2
公开(公告)日：2005-01-25
申请号：US09782153
申请日：2001-02-14
申请人： Hideki Torikoshi , Shigekazu Morita , Koichi Hamamatsu , Itsuo Shuto
发明人： Hideki Torikoshi , Shigekazu Morita , Koichi Hamamatsu , Itsuo Shuto
IPC分类号： G04G5/00 , G01S19/05 , G01S19/09 , G01S19/11 , G01S19/14 , G01S19/46 , G04G7/00 , G04R20/00 , G04R20/02 , G04R20/26 , G04R40/06 , H04B7/155 , H04L7/00
CPC分类号： G04R40/06 , G04R20/02
摘要： A time synchronization system comprises a GPS (Global Positioning System) receiver for receiving a time signal from a Global Positioning System (GPS), and outputting a UTC (Universal Time Coordinated) synchronization reference signal synchronizing with UTC and a UTC synchronization absolute time signal, and a time signal distributor for generating a reference time signal synchronizing with UTC from the synchronization reference signal and the absolute time signal, and transmits this reference time signal in distribution to a plurality of distributed control oriented terminal devices. The time synchronization between the plurality of distributed control oriented terminal devices can be thereby taken.
摘要翻译：时间同步系统包括用于从全球定位系统（GPS）接收时间信号并输出与UTC和UTC同步绝对时间信号同步的UTC（世界时间协调）同步参考信号的GPS（全球定位系统）接收机，以及时间信号分配器，用于从同步参考信号和绝对时间信号产生与UTC同步的参考时间信号，并将该参考时间信号发送到多个分布式控制定向终端装置。由此可以实现多个分布式控制终端装置之间的时间同步。

9. 发明授权

US06731655B1 Current differential relay device 有权
标题翻译：电流差动继电器
公开(公告)号：US06731655B1
公开(公告)日：2004-05-04
申请号：US09588200
申请日：2000-06-06
申请人： Itsuo Shuto , Hajime Kurihara
发明人： Itsuo Shuto , Hajime Kurihara
IPC分类号： H04L1210
CPC分类号： H02H7/263
摘要： In transmitting signals to an opposing terminal by introducing a system current from a terminal of this side, a dummy bit interpolator (105) is provided for inserting dummy bits among the fixed frame lengths of the transmission signals to adjust the length of the transmission data by using dummy bits in order to maintain synchronism in the sampling timings even when there does not hold a multiple relationship between the sampling frequency and the rate of transmission.
摘要翻译：在通过从该侧的终端引入系统电流来向相对终端发送信号的情况下，提供虚拟位内插器（105），用于在传输信号的固定帧长度之间插入虚拟位，以通过以下方式调整发送数据的长度：即使在采样频率和传输速率之间不存在多重关系时，也使用虚拟位来保持采样定时的同步。

10. 发明授权

US07199989B2 Digital protection relay with time sync function 有权
标题翻译：具有时间同步功能的数字保护继电器
公开(公告)号：US07199989B2
公开(公告)日：2007-04-03
申请号：US10669704
申请日：2003-09-25
申请人： Daiju Itagaki , Hiroaki Ayakawa , Itsuo Shuto
发明人： Daiju Itagaki , Hiroaki Ayakawa , Itsuo Shuto
IPC分类号： H02H3/00
CPC分类号： H02H7/261 , H02H1/0092
摘要： In a digital protection relay with a time sync function, the sampling timing of which is specified based on a reference timing transmitted from a time signal generator to a time sync unit, with a determination value. The time sync unit includes a reception circuit that receives a discrimination code and time data transmitted from the time signal generator, a code discrimination circuit that discriminates the reference timing on condition that the received discrimination code coincides with a desired code, a time calculation circuit that calculates the sampling timing on the basis of the discriminated reference timing and the time data, and a sampling sync circuit that specifies the sampling timing of a digital quantity of electricity on the basis of the calculated sampling timing.
摘要翻译：在具有时间同步功能的数字保护继电器中，其采样定时基于从时间信号发生器发送到时间同步单元的参考定时被指定，具有确定值。时间同步单元包括接收鉴别码和从时间信号发生器发送的时间数据的接收电路，在接收到的鉴别码与期望码一致的条件下鉴别基准定时的码鉴别电路，时间计算电路基于所识别的基准定时和时间数据来计算采样定时，以及采样同步电路，其基于所计算的采样定时来指定数字量的采样定时。

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