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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

JP2010273430A Device for switching load of transformer 有权
标题翻译：用于切换变压器负载的装置
公开(公告)号：JP2010273430A
公开(公告)日：2010-12-02
申请号：JP2009122072
申请日：2009-05-20
申请人： Mitsubishi Electric Corp , Tokyo Electric Power Co Inc:The , 三菱電機株式会社 , 東京電力株式会社
发明人： MASUDA NAOKI , TSUKIMA MITSURU , MARUYAMA AKIHIKO , MAEDA KOJI , MORI KENJIRO , YOSHINAGA ATSUSHI , MOTOHASHI JUN
IPC分类号： H02J3/00 , H01H9/54
摘要： PROBLEM TO BE SOLVED: To provide a device for switching a load of a transformer in portable size and weight, capable of switching the load with complete uninterruptible power supply. SOLUTION: A load LA on the side of a bank A, which is connected to a high-voltage-side power line 1 through a transformer 3a, is switched to the side of a bank B, which is connected through a transformer 3b, without power interruption. The load switching device is provided with a bypass cable 6 which is connected between low-voltage power lines 5a and 5b of both banks and has a cable switch 7, a first switching device 10 which is connected in parallel to a low-voltage switch 4a on the side of the bank A and has an opening switch 13, and a second switching device which has a circuit where a serial body of a second non-contact switch 25 and a current limiting element 26 is connected in parallel to a first non-contact switch 23 connected in parallel to the cable switch 7 and has a control circuit 27 that on/off-controls the non-contact switches 23 and 25 and the opening switch 13 of the first switching device 10. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于切换便携式尺寸和重量的变压器的负载的装置，能够用完全不间断电源切换负载。解决方案：通过变压器3a连接到高压侧电力线1的组A侧的负载LA切换到通过变压器连接的组B的一侧 3b，无电源中断。负载开关装置设置有旁路电缆6，旁路电缆6连接在两组的低压电力线5a和5b之间，并具有电缆开关7，第一开关装置10并联连接到低压开关4a 在开关开关13的一侧，并具有第二开关装置，该第二开关装置具有第二非接触开关25和限流元件26的串联体并联连接到第一非接触开关的电路，接触开关23并联连接到电缆开关7，并且具有控制电路27，该控制电路27对第一开关装置10的非接触开关23和25以及开启开关13进行开/关控制。版权所有（C））2011，JPO＆INPIT

7. 发明专利

JP2009005565A Distribution line accident zone selecting and blocking device and distribution line accident zone selecting and blocking method 审中-公开
标题翻译：分布线事故区选择和阻塞装置和分配线事故区选择和阻塞方法
公开(公告)号：JP2009005565A
公开(公告)日：2009-01-08
申请号：JP2007166761
申请日：2007-06-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA SHUHEI , MAEDA KOJI
IPC分类号： H02H7/26 , G01R31/08
摘要： PROBLEM TO BE SOLVED: To obtain a distribution line accident zone selecting and blocking device for selectively blocking a distribution line accident zone which enables the discrimination of an earth fault accident zone and blocking only the accident zone without measuring both a zero-phase current and a zero-phase voltage in each zone of a distribution line, and accordingly for reducing measuring cost, and a distribution line accident zone selecting and blocking method.
SOLUTION: The distribution line 5 is sectioned by zone switches 4 in the number of n, while CTs (current transformers) 2 in the number of n are provided corresponding to the individual zone switches 4. A switch blocking instruction preparing part 1 receives a measured value of a phase current from each CT 2 via a communication circuit 3 and calculates a difference in the zero-phase current between the adjacent CTs 2. In the case that some of absolute values of the differences exceed a threshold value, a blocking instruction is transmitted to the zone switch 4 of the concerned zone.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够选择性地阻挡分配线事故区的分配线事故区选择和阻塞装置，其能够区分接地故障事故区并且仅阻挡事故区而不测量零相电流和零相电压，从而降低测量成本，以及配电线路事故区选择和阻断方法。解决方案：分配线路5由n个区域开关4分段，而n个数量的CT（电流互感器）2对应于各个区域开关4。开关阻断指令准备部分1 通过通信电路3从每个CT 2接收相电流的测量值，并计算相邻CT之间的零相电流差。在差异的绝对值的一些超过阈值的情况下，阻塞指令被发送到相关区域的区域交换机4。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008289338A Device for judging exchange time of transformer 审中-公开
标题翻译：用于判断变压器交换时间的设备
公开(公告)号：JP2008289338A
公开(公告)日：2008-11-27
申请号：JP2007134787
申请日：2007-05-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA SHUHEI , MAEDA KOJI
IPC分类号： H02H7/04 , G01R31/00 , H02H3/00
摘要： PROBLEM TO BE SOLVED: To provide a device for judging exchange time of a transformer capable of exactly determining whether or not the transformer installed in a power system is in the time for exchange because of problems of a deterioration degree and an improper capacitance. SOLUTION: The device is provided with a transformer primary side specific current component measuring device 2 for measuring a specific one current component flowing in a primary winding 1a of the transformer 1, a transformer secondary side specific current component measuring device 3-1 to a transformer k-th side specific current component measuring device 3-k for measuring the same specific current component as the primary side flowing in a secondary winding 1b to k-th winding 1c of the transformer 1, and a transformer capability judging apparatus 4 for comparing the difference value of the specific current component measured by the measuring devices 2, 3-1 to 3-k-th, respectively, with a predetermined setting value, and judging whether or not the deterioration of the transformer 1 is advancing to the degree for exchange, or whether or not the capacitance of the transformer 1 is improper to the degree for exchange. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于判断变压器的交换时间的装置，其能够精确地确定安装在电力系统中的变压器是否处于由于劣化程度和不适当电容的问题而交换的时间。解决方案：该装置设置有用于测量在变压器1的初级绕组1a中流动的特定一个电流分量的变压器初级侧电流分量测量装置2，变压器次级侧电流分量测量装置3-1 涉及用于测量与在变压器1的次级绕组1b至第k绕组1c中流动的初级侧相同的比电流分量的变压器k侧电流分量测量装置3-k，以及变压器能力判断装置4 用于将由测量装置2,3-1测量的比电流分量的差分值与预定的设定值进行比较，并且判断变压器1的劣化是否前进到变压器1的电容是否不适合交换的程度。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2007267517A Power distribution supervisory control system 有权
标题翻译：功率分配监控系统
公开(公告)号：JP2007267517A
公开(公告)日：2007-10-11
申请号：JP2006089973
申请日：2006-03-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MAEDA KOJI , ADACHI KAZUO , UCHIYAMA KENJIRO
IPC分类号： H02J13/00 , H04J11/00
CPC分类号： Y02E60/723 , Y04S10/16
摘要： PROBLEM TO BE SOLVED: To establish a power distribution supervisory control system in which a variety of information required for high power distribution supervisory control function are transmitted while suppressing extra cost increase by using an inexpensive communication cable of long lifetime.
SOLUTION: A slave station 6 for supervisory controlling the control object apparatus 2 such as a section switch, a transformer, and the like, are provided on the power receiving side, and a master station 5 for generally controlling the slave station 6 is provided on the power supply side. The master station 5 and the slave station 6 are interconnected through a communication cable 7 laid along a distribution line 3, and equipped with OFDM modems 52 and 62 performing modulation/demodulation between a communication signal subjected to orthogonal frequency division multiplexing (OFDM) and received via the communication cable 7 and the data signal in each station 5, 6.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：建立一种配电监控系统，其中通过使用寿命长的廉价通信电缆来抑制额外的成本增加，从而发送大功率分配监控功能所需的各种信息。解决方案：用于监视控制对象装置2的从站6，例如区段开关，变压器等，设置在电力接收侧，主站5用于通常控制从站6 设置在电源侧。主站5和从站6通过沿着分配线路3布置的通信电缆7互连，并且配备有在经过正交频分复用（OFDM）的通信信号和接收到的OFDM调制解调器52和62之间执行调制/解调的OFDM调制解调器52和62 通过通信电缆7和每个站5,6中的数据信号。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006060886A Method of controlling distributed power source 有权
标题翻译：控制分布式电源的方法
公开(公告)号：JP2006060886A
公开(公告)日：2006-03-02
申请号：JP2004238010
申请日：2004-08-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA SHUHEI , MAEDA KOJI
IPC分类号： H02J3/38
CPC分类号： Y02E40/72 , Y02E60/723 , Y04S10/12 , Y04S10/16
摘要： PROBLEM TO BE SOLVED: To surely prevent the single operation of distributed power sources at a low cost, even if the number of connected units of distributed power sources, to a distribution line which becomes a single operation by the opening action of a breaker is increased. SOLUTION: In a power distribution system, where a plurality of distributed power sources 1 (1-ng1) and 2 (1-ng2) exist in the distribution line 3 which serves single operation by the opening action of the breaker 6, the balance state between the distribution line load at the time of single system of the above distribution line 3 and the power by the plural distributed power sources is judged. In case that the balance is not lost, the power supply from a specified distributed power source among the plural distributed power sources to the distribution line is stopped to break the balance. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使分散式电源的连接单元的数量，通过a的打开动作成为单一操作的分配线，可以将成本低的分散式电源的单次操作断路器增加。解决方案：在配电系统中，在通过断路器6的打开动作进行单次操作的配电线路3中存在多个分布式电源1（1-ng1）和2（1-ng2）的配电系统中，判断上述分配线3的单个系统的分配线负载与多个分散电源的功率之间的平衡状态。在不损失平衡的情况下，停止从配电线路的多个分散电源中的规定分散电源的电力供给，从而中断平衡。版权所有（C）2006，JPO＆NCIPI

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