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1. 发明专利

JP2011199928A Method of controlling distribution system 有权
标题翻译：控制分配系统的方法
公开(公告)号：JP2011199928A
公开(公告)日：2011-10-06
申请号：JP2010060712
申请日：2010-03-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MASUDA NAOKI , NOMURA TOSHIO , MAEDA KOJI
IPC分类号： H02J3/04 , H02H7/26 , H02J3/00 , H02J13/00
CPC分类号： Y02E60/725 , Y04S10/20
摘要： PROBLEM TO BE SOLVED: To obtain a method of controlling a distribution system for increasing an opportunity of forming a loop of a distribution system by a simple method.SOLUTION: By the method of controlling a distribution system, a distribution system is controlled. The distribution system includes a first distribution line where power is supplied from a first system power supply and a plurality of normally closed switches that divide a zone and are closed normally are connected in series, a second distribution line where power is supplied from a second system power supply and a plurality of normally closed switches that divide a zone and are closed normally are connected in series, and a plurality of interconnected switches that are provided between the first distribution line and the second distribution line so that they are connected in order from a side of the first system power supply and a side of the second system power supply and are open normally. By the method, before closing one interconnected switch in the plurality of interconnected switches, control is performed to close the interconnected switches connected at the side closer to the system power supply than the one interconnected switch.
摘要翻译：要解决的问题：通过简单的方法获得控制分配系统的方法，以增加形成分配系统的循环的机会。解决方案：通过控制分配系统的方法，控制分配系统。分配系统包括：第一分配线，其中从第一系统电源供电的功率和分割区域并且正常闭合的多个常闭开关串联连接;第二分配线，其中从第二系统供电电源和多个正常闭合的开关，其正常地闭合并且被正常地闭合;以及多个互连开关，其设置在第一配线和第二配电线之间，使得它们从第一个系统电源的侧面和第二个系统电源的一侧，并且正常打开。通过该方法，在闭合多个互连的交换机中的一个互连的交换机之前，执行控制以关闭连接在比一个互连的交换机更靠近系统电源的一侧的互连的交换机。

2. 发明专利

JP2011015517A Protection system of distribution line 有权
标题翻译：分销线保护制度
公开(公告)号：JP2011015517A
公开(公告)日：2011-01-20
申请号：JP2009156957
申请日：2009-07-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MASUDA NAOKI , NOMURA TOSHIO , MAEDA KOJI
IPC分类号： H02H7/26 , H02H3/34
摘要： PROBLEM TO BE SOLVED: To obtain a protection system of distribution lines which avoids a restoration time from being varied depending on a position of the generation of an accident in a sound zone at the downstream side of an accident zone at the occurrence of ground faults.SOLUTION: The protection system of the distribution lines comprises the first and second distribution lines connected to a bus bar via blockers and having a plurality zone switches arranged in a vertical row and linkage switches arranged at linkage points of the first and second distribution lines, and feeds power to the sound zone by separating the accident zones by releasing the blockers or the zone switches at the occurrence of the ground faults of the distribution lines. The blockers, the zone switches and protection relays arranged at each linkage switch detect accidents of the ground faults and directions of the ground faults, transmit their own detection information to the protection relays which are arranged adjacent to each other in the directions of the ground faults, determine that the protection relays are those adjacent to the accident zones when receiving the detection information in the adjacent protection relays, release the blockers adjacent to the accident zones and the zone switches, and turn on the linkage switches.
摘要翻译：要解决的问题：获得配电线路的保护系统，其避免了在发生接地故障时在事故区下游侧的声音区域中的事故发生的位置而不同的恢复时间。解决方案：配电线路的保护系统包括通过阻塞器连接到母线的第一和第二配电线，并且具有布置在垂直排中的多个区开关和布置在第一和第二配电线的连接点处的联动开关，以及通过在发生配电线路的接地故障时释放阻塞器或区域开关来分离事故区域，向声音区域馈电。每个联动开关上设置的阻塞器，区域开关和保护继电器检测接地故障和接地故障方向的事故，将自己的检测信息发送到沿接地故障方向彼此相邻布置的保护继电器在相邻的保护继电器中接收到检测信息时，确定保护继电器是与事故区相邻的保护继电器，释放与事故区域和区域开关相邻的阻塞器，并打开联动开关。

3. 发明专利

JP2010243504A Fault locating system 有权
标题翻译：故障定位系统
公开(公告)号：JP2010243504A
公开(公告)日：2010-10-28
申请号：JP2010157739
申请日：2010-07-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TADOKORO MICHIHIRO , MAEDA KOJI
IPC分类号： G01R31/08 , H02H3/00 , H02H7/26
摘要： PROBLEM TO BE SOLVED: To accurately locate a fault in an electric power distribution line. SOLUTION: The fault locating system includes: a plurality of slave stations 6a, 6b, ... 6e, ... that are installed corresponding to particular locations on a distribution line 4 and acquire voltage information upon the occurrence of a fault of the distribution line at any of the corresponding locations; a master station 5 for collecting the voltage information of the particular locations on the distribution line from the slave stations; and a fault locating part 7 for locating a fault from a plurality of voltages having a relationship of a gradual decrease toward the fault location out of the voltage information of the particular locations on the distribution line which are collected by the master station, wherein a distribution line protective relay 300 has at least a part of functions of the fault locating system. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：精确定位配电线路中的故障。解决方案：故障定位系统包括：对应于分配线路4上的特定位置安装的多个从站6a，6b，... 6e，...，并且在故障发生时获取电压信息在任何相应位置的配电线路; 用于从从站收集分配线上的特定位置的电压信息的主站5; 以及故障定位部分7，用于从由主站收集的分配线上的特定位置的电压信息中，从具有逐渐向故障位置逐渐减小的关系的多个电压定位故障，其中分布线路保护继电器300具有故障定位系统的功能的至少一部分。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2008170381A System for locating accident point 有权
标题翻译：用于定位事故点的系统
公开(公告)号：JP2008170381A
公开(公告)日：2008-07-24
申请号：JP2007005972
申请日：2007-01-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TADOKORO MICHIHIRO , MAEDA KOJI
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To precisely orient an accident point in a distribution line for electric power, in the situation where a system impedance becomes apparently nonuniform and where an error in accident point computation gets large along with an increase of a load capacity or an electric power generator capacity connected in a midway of a distribution system, because a load, an electric power generator or the like is connected in anywhere of the distribution system, different from a power transmission system, when applying a conventional system for locating accident point onto the distribution system.
SOLUTION: This system for locating accident point is provided with: a plurality of sub-stations 6a, 6b, 6c, 6d, 6e, etc, provided corresponding to respective points of the distribution line 4, and for obtaining voltage information in an accident of the distribution line in each corresponding point; a main station 5 for collecting the pieces of voltage information in the respective points in the distribution line from the sub-stations; and an accident point orienting part 7 for orienting the accident point, based on a plurality of voltages brought into a relation reduced gradually toward the accident point, out of the pieces of voltage information in the respective points collected by the main station.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了精确地定向电力分配线中的事故点，在系统阻抗明显不均匀的情况下，事故点计算中的误差随着负载能力的增加而变大或连接在分配系统中途的发电机容量，因为在应用用于定位事故的常规系统时，负载，发电机等连接在与输电系统不同的配电系统的任何地方指向分销系统。
解决方案：用于定位事故点的系统设置有：与分配线4的各个点相对应设置的多个子站6a，6b，6c，6d，6e等，并且用于获得每个对应点的配电线路事故; 主站5，用于从分站收集分配线中的各个点中的电压信息; 以及基于从主站收集的各个点中的电压信息中的多个电压逐渐向故障点逐渐减小的事故点的定向事故点定向部7。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2006058043A Significant information transmission device and consumer information transmission device 审中-公开
标题翻译：重要信息传输设备和消费者信息传输设备
公开(公告)号：JP2006058043A
公开(公告)日：2006-03-02
申请号：JP2004237833
申请日：2004-08-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UCHIYAMA KENJIRO , MAEDA KOJI
IPC分类号： G01R21/133 , G01R11/00
摘要： PROBLEM TO BE SOLVED: To provide a small inexpensive significant information transmission device, capable of generating and transmitting significant information such as an active power, a reactive power or a voltage, by utilizing the digital signal of a voltage or a current used in the calculation of electrical energy consumption by a watt-hour meter for transmitting information on the electrical energy consumed.
SOLUTION: The digital signal A1 is subjected to FFT operation, and an FFT operation result A2 of the fundamental waves of a voltage and a current or the like is outputted to a digital filter processing part 12, and the electric energy consumption is calculated, based on the voltage and the current in the FFT operation result A2 by an electrical energy consumption calculating part 13, and a measured pulse signal A3 is transmitted. A calculation part 21 for active power or the like, as a significant information calculation means, generates information B1 of the active power or the like, such as the active power, the reactive power, the voltage or the current which is the significant information, based on the FFT operation result A2, and transmits it via a communication processing part 22 and a network terminal part 23. Since significant information is calculated, by utilizing the FFT operation result A2 from an electronic type watt-hour meter 1, this device can be made compact and at a low cost.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种小型廉价的有意义的信息传输设备，能够通过利用所使用的电压或电流的数字信号来生成和传输诸如有功功率，无功功率或电压的重要信息在计算用于传输关于所消耗的电能的信息的瓦特计的电能消耗时。解决方案：数字信号A1进行FFT运算，电压和电流等的基波的FFT运算结果A2被输出到数字滤波处理部12，电能消耗为基于电能消耗计算部13的FFT运算结果A2中的电压和电流计算出测量脉冲信号A3。作为有效信息计算装置的有功功率等的计算部21生成作为有效信息的有功功率，无功功率，电压或电流等有功功率等的信息B1，基于FFT运算结果A2，经由通信处理部22和网络终端部23进行发送。由于利用来自电子式电度表1的FFT运算结果A2，计算出有效信息，所以能够成本低廉，成本低廉。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JPH04197020A PROTECTIVE RELAY 失效
公开(公告)号：JPH04197020A
公开(公告)日：1992-07-16
申请号：JP32639890
申请日：1990-11-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOJI
IPC分类号： H02H3/02
摘要： PURPOSE:To improve the characteristic change by frequency ripple by leading out the loadage of the sampling data of currents and voltage, and controlling the input order of the sampling data so as to remove components related to the second harmonics and sampling time width. CONSTITUTION:The operation formula for system protection, which leads out judgment quantity, is sought using the current and voltage data sampling values, and the operation formula is constituted of the addition formula of the first quantity of electricity and the second quantity of electricity so as to obtain components in power direction. Furthermore, the operation formula is expressed by removing the components related to the second harmonics and the those related to the sampling time width. And the judgment quantity is output by controlling the input of the sampling data and processing it by means of arithmetic operation means, so the influence on the characteristic by frequency ripple is improved, and it becomes possible to share the sampling time width between both 50Hz and 60Hz, and also the detection time can be shortened.

7. 发明专利

JPH04185220A PROTECTIVE RELAY 失效
公开(公告)号：JPH04185220A
公开(公告)日：1992-07-02
申请号：JP31451290
申请日：1990-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOJI
IPC分类号： H02H3/02
摘要： PURPOSE:To obtain a protective relay operable on a 50Hz/60Hz common arithmetic processing circuit, by calculating the products of the cubes of sampling data of current and voltage, and so on, by controlling the sampling data so as to remove the components of the second harmonics and sampling time width, and by producing an output at a judging quantity calculating section. CONSTITUTION:Voltage and current data are stored in storing means 3, 4, 6-8. And an operation expression for system protection to be calculated by using those values is obtained. The operation expression is composed of the first and second electric quantities. A power directional component is found from a value obtained by dividing the first electric quantity consisting of a sampling conditional expression having the product of the cubed amplitude values of the current and voltage as a multiplicand, by the second electric quantity consisting of a sampling time conditional expression having a squared amplitude value of the voltage as a multiplicand. And 4-rule calculating means 9-33 calculate under conditions that the conditional expressions of the first and second electric quantities are not zero, and that the power directional component is higher than zero, and a judging quantity calculating section 100 produces an output of a judged result. And this releases the sampling time width from dependency on the system frequency.

8. 发明专利

JPH04185219A PROTECTIVE RELAY 失效
公开(公告)号：JPH04185219A
公开(公告)日：1992-07-02
申请号：JP31451490
申请日：1990-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAEDA KOJI
IPC分类号： H02H3/02
摘要： PURPOSE:To obtain a protective relay operable on a common processing circuit, without changing a sampling time width according to frequencies to deal with, by calculating the products of squares of sampling data of voltage and current, etc., and by controlling the sampling data so as to remove the components of the second harmonics and sampling time. CONSTITUTION:Voltage and current data are stored in storing chambers 3, 4, 6-8. And an operation expression for system protection to be calculated by using those values is obtained. The operation expression is composed of the first and second electric quantities. A power directional component is found from a value obtained by dividing the first electric quantity consisting of a sampling operation expression having the product of squared amplitude values of the current and voltage as a multiplicand by the second electric quantity. At that time, a judged result is outputted on conditions that the conditional expressions of the first and second electric quantities are not zero, and that the power directional component is higher than zero. And this releases the sampling time width from dependency on the system frequency.

9. 发明专利

JPH0349532A CROSS CURRENT DETECTION SENSOR 失效
公开(公告)号：JPH0349532A
公开(公告)日：1991-03-04
申请号：JP18322589
申请日：1989-07-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： EBIZAKA TOSHINOBU , ISAHAYA KEIJI , MAEDA KOJI , TSUKAMOTO JUNICHIRO , KANEDA AKIRA
IPC分类号： H02J3/00
摘要： PURPOSE:To open or close a normally open point zone switch and to energy- save by providing a cross current calculating current detecting current transformer, a cross current calculating voltage detecting transformer, a cross current value calculator, etc., installing in parallel with a normally open point zone switch, and calculating a loop cross current before a loop is operated. CONSTITUTION:A cross current calculating current detecting current transformer CT for obtaining a current value necessary when a cross current is calculated, cross current calculating voltage detecting transformers TA, TB for obtaining loop point both side voltages, a cross current value calculator for calculating a loop cross current value, etc., are provided. This cross current detection sensor LIS is installed in parallel with a normally open point zone switch LS. When the switch LS is 'open', a voltage of both sides of the normally open zone switch or a current flowing to to an impedance is measured. A function of calculating a loop cross current flowing when the switch LS is 'closed' by using the measured voltage, current, etc., is provided. Thus, a non-utility power switching can be performed only by the switching operation of the switch LS.

10. 发明专利

JPS63222287A UNDERGROUND BURIED OBJECT EXAMINATION SYSTEM 失效
公开(公告)号：JPS63222287A
公开(公告)日：1988-09-16
申请号：JP5568287
申请日：1987-03-11
申请人： MITSUBISHI ELECTRIC CORP , TOKYO ELECTRIC POWER CO
发明人： ITO MASAAKI , ODAGIRI SHIRO , MAEDA KOJI , USAMI TERUO , KAMIKUBO YASUHIRO
IPC分类号： G01V3/12 , G01S13/88 , G01S13/90 , G01V3/16 , G01V3/17
摘要： PURPOSE:To eliminate data collection work only for determining actual specific inductive capacity of soil, by a method wherein a reflected wave profile data is used and a specific inductive capacity making the data vary sequentially undergoes to a synthetic opening processing for each set value to evaluate the results. CONSTITUTION:A reflected wave profile data 11 of an underground section unit is collected at a step ST1. The reflected wave profile data is preprocessed at a step ST2, then, subjected to a synthetic opening processing at a step ST3 and moreover, a processing is performed to correct geologic features at a step ST4. At a step ST6, the reflected wave profile data preprocessed at the step ST2 is used to calculate an actual specific inductive capacity of soil where a target object is buried. At a step ST5, an output processing of an image data is performed.

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