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1. 发明专利

JP2004074924A Protective device of feeding circuit 有权
公开(公告)号：JP2004074924A
公开(公告)日：2004-03-11
申请号：JP2002238209
申请日：2002-08-19
申请人： Kyushu Railway Co , Nissin Electric Co Ltd , Railway Technical Res Inst , 九州旅客鉄道株式会社 , 日新電機株式会社 , 財団法人鉄道総合技術研究所
发明人： HASE SHINICHI , MORIMOTO HIROMI , OKUI AKINOBU , NAKAMICHI YOSHINOBU , KITAJIMA TAKUMI , KUHARA KOKI , NISHIMURA SOJI , TOKUDA KENSHO , NATSUDA YASUKAZU , SHIKATA TOSHIHIKO
IPC分类号： G01R31/02 , B60M3/00
摘要： PROBLEM TO BE SOLVED: To provide a protective device of an AC feeding circuit for quickly transferring to protective operation by surely detecting a short circuit accident even if there is a heavy load state by an increase in the number of rolling stocks and starting or acceleration of the rolling stocks. SOLUTION: A feeder line 3 and a return line 4 of the AC feeding circuit arranged in an electric railway are formed as a pair of measuring lines, and an inter-harmonics current is superimposed and injected between the measuring lines, and at least one of voltage or an electric current of an inter-harmonics between the measuring lines is measured. An electric characteristic value of the AC feeding circuit, for example, impedance of the inter-harmonics between the measuring lines is monitored on the basis of a measuring result. The short circuit accident of the AC feeding circuit is detected when the impedance deviates from a prescribed setting value range, and a protective operation command is outputted on the basis of the detecting signal. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2007174742A Single operation detection method of distributed power supply and device 有权
标题翻译：分布式电源和设备的单操作检测方法
公开(公告)号：JP2007174742A
公开(公告)日：2007-07-05
申请号：JP2005365337
申请日：2005-12-19
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU , HANEDA GIKO
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a method that can shorten a single operation detection time while suppressing a possibility of erroneous detection by removing an influence of a system transition phenomenon, and a device. SOLUTION: In the single operation detection method, an injection current of a non-integral multiplication order of a fundamental wave of a distribution system is single-phase injected into the distribution system, and admittances of a positive phase and a negative phase of an injection order, and susceptances of the positive phase and the negative phase are calculated from a three-phase measuring voltage and a measuring current. When at least one of both the admittances is not smaller than a reference value Y st , it is determined that the distributed power supply is in a single operation state only when the degree of inconsistency between both the admittances is not larger than a determined value, even if at least one of both the susceptances is not higher than the determined value B ju . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以通过消除系统转变现象的影响而抑制错误检测的可能性而缩短单个操作检测时间的方法和装置。解决方案：在单次操作检测方法中，分配系统基波的非积分乘法顺序的注入电流单相注入分配系统，正相和负相的导纳的注射顺序，并且从三相测量电压和测量电流计算正相和负相的电纳。当两个导纳中的至少一个不小于基准值Y st 时，仅当两个导纳之间的不一致程度是不大于确定值，即使两个电纳中的至少一个不高于确定的值B 。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005304227A Single operation detecting device of distributed power supply 审中-公开
标题翻译：分析电源的单一操作检测装置
公开(公告)号：JP2005304227A
公开(公告)日：2005-10-27
申请号：JP2004119026
申请日：2004-04-14
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： G01R19/165 , H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a device which can detect with high accuracy the single operation of a distributed power supply by suppressing the deterioration of an SN ratio with respect to background noise, even if an amount of an injection current is reduced. SOLUTION: This single operation detecting device comprises a current injector 32 and a supply stop detecting device 42. The current injector 32 injects an injection current J m , which has an injection degree m at which there are repeated at constant cycles an injection period for feeding a prescribed amplitude of the injection current and a non-injection period wherein a period wherein the injection current is substantially zero continues for a certain period of time, to a lead-in wire 18. The supply stop detecting device 42 comprises: a first extraction means which extracts a voltage and a current in the injection period from a measured voltage V t and a measured current I t in the lead-in wire 18, respectively, and outputs them; a second extraction means which extracts a voltage and a current of the injection degree m, respectively; and an operation means which calculates the impedance or the admittance of the injection degree m by using a voltage and a current outputted from the second extraction means. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：即使喷射电流的量减少，也可以通过抑制SN比相对于背景噪声的劣化来提供能够高精度地检测分布式电源的单次动作的装置。解决方案：该单个操作检测装置包括电流注入器32和供给停止检测装置42.电流注入器32注入注射电流J m ，注射电流J 以恒定周期重复进行喷射电流的规定振幅的喷射周期和其中喷射电流基本上为零的时间段持续一段时间的非喷射时段到引入线18的时间。供电停止检测装置42包括：第一提取装置，其从所测量的电压V SB和T S中的测量电流I t 提取注入期间的电压和电流，导线18分别输出; 第二提取装置，分别提取喷射度m的电压和电流; 以及通过使用从第二提取装置输出的电压和电流来计算喷射度m的阻抗或导纳的操作装置。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006296143A Individual operation detector for distributed power supply 有权
标题翻译：用于分配电源的个体操作检测器
公开(公告)号：JP2006296143A
公开(公告)日：2006-10-26
申请号：JP2005116472
申请日：2005-04-14
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To miniaturize not only a current injection device but also an individual operation detector by simplifying the configuration of the current injection device for injecting an injection current having a plurality of orders. SOLUTION: The individual operation detector 30 has the current injection device 32 and a supply suspension detector 34. The current injection device 32 comprises a square-wave voltage generator for generating a square-wave voltage having an order that is a non-integer multiple of the fundamental wave of the power distribution system, and a serial resonance circuit having a resonance frequency different from odd multiple of the frequency of the square-wave voltage from the square-wave voltage generator. The device injects to a service wire 18 the injection current J m which contains the injection currents that are in a non-integer multiple order, have different orders, and have a plurality of orders as components. The supply suspension detector 34 detects that the supply of power from a host system 2 is stopped according to a change in the impedance or admittance of a distribution system in the order of injection selected from the plurality of injection orders. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了通过简化用于注入具有多个次序的注入电流的电流注入装置的结构，不仅使电流注入装置还具有单独的操作检测器。单独的操作检测器30具有电流注入装置32和电源悬架检测器34.电流注入装置32包括一个方波电压发生器，用于产生具有非线性的次序的方波电压，配电系统的基波的整数倍，以及谐振频率与来自方波电压发生器的方波电压的频率的奇数倍不等的串联谐振电路。该装置向服务线18注入包含处于非整数多次的注入电流的注入电流J m 具有不同的顺序，并且具有多个阶数作为组件。电源暂停检测器34根据从多个喷射次序中选择的喷射次序，分配系统的阻抗或导纳的变化来检测主机系统2的电力供应是否停止。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2008029065A Islanding detection system of distributed power supply 审中-公开
标题翻译：分布式电源岛屿检测系统
公开(公告)号：JP2008029065A
公开(公告)日：2008-02-07
申请号：JP2006196394
申请日：2006-07-19
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide an islanding detection system detecting the islanding of distributed power supplies at high speed of within 0.1 sec, for instance, and with high reliability. SOLUTION: This islanding detection system is provided with a current injection device 30 that injects an injection current J m of an m-th injection order into a distribution line 10, a first islanding detection device 40 that measures the admittance or susceptance of the m-th injection degree of a distribution system, detects from the change that a distributed power supply 22 is islanded, and increases the injection current J m outputted from the current injection device 30 after the detection, and second islanding detection devices 80 that, installed in each facility 16 having the distributed power supply, measures a voltage of the m-th injection order and detects from the increase that the distributed power supply 22 in the facility 16 having the distributed power supply is islanded. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种孤岛检测系统，例如在高可靠性的0.1秒内以高速检测分布式电源的孤岛。解决方案：该孤岛检测系统设置有电流注入装置30，该电流注入装置30将第m次注射顺序的注射电流J m 注入分配管线10，第一孤岛检测装置40 测量分配系统的第m次注入程度的导纳或电纳，从分布式电源22孤立的变化中检测出，并且增加从电流注入输出的注入电流J SBM 检测后的装置30以及安装在具有分散电源的各设施16中的第二孤岛检测装置80测量第m次注射顺序的电压，并从增加检测设备16中的分布式电源22 分布式电源是孤岛式的。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2006246640A Islanding phenomenon detector for distributed power source 有权
标题翻译：用于分布式电源的岛屿探测器
公开(公告)号：JP2006246640A
公开(公告)日：2006-09-14
申请号：JP2005060535
申请日：2005-03-04
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To downsize a current injector, as well as, an islanding phenomenon detector, by simplifying the constitution of the current injector which injects an injection current of two or more degrees and reducing the loss. SOLUTION: This islanding phenomenon detector 30 is equipped with a current injector 32 and a supply stop detector 34. The current injector 32 is equipped with a square wave voltage detector which generates square wave voltage of a degree non-integer multiple of the fundamental wave of a distribution system, and a series capacitor which differentiates the square wave voltage from it prior to output. It injects, into a lead-in wire 18, a pulsated injection current J m which contains, as a component, injection current of two or more degrees being non-integer multiple degrees as described above and being mutually different degrees. The supply stop detector 34 detects the power supply from a high-order system 2 having stopped, from the change of the impedance or admittance of the distribution system in the injection degree selected from among the above two or more injection degrees. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过简化注入两度以上的注入电流并减少损耗的电流注入器的结构来减小电流注入器以及孤岛现象检测器的尺寸。解决方案：该孤岛现象检测器30配备有电流注入器32和供电停止检测器34.电流注入器32配备有方波电压检测器，该检波器产生方波电压，该方波电压为配电系统的基波，以及在输出之前区分方波电压的串联电容器。它以引导线18注入脉动注入电流J SB，其中包含如上所述的两度或更多度的非整数倍的注入电流作为分量，并且是相互的不同程度供给停止检测器34从从上述两个以上的喷射度中选择的喷射度的阻抗或导纳的变化来检测已停止的高阶系统2的电力供给。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2007312566A Inverter device 有权
标题翻译：逆变器装置
公开(公告)号：JP2007312566A
公开(公告)日：2007-11-29
申请号：JP2006141404
申请日：2006-05-22
申请人： Nissin Electric Co Ltd , 日新電機株式会社
发明人： NATSUDA YASUKAZU , SAJI HIROYUKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide an inverter device adopting a lamination structure where an insulator cannot be damaged by external force easily, even if the insulator is projected from a conductor plate with some excessive length. SOLUTION: In the inverter device: first and second insulators 32, 34 and a first intermediate conductor plate 6 is projected from the left, right, and front sides of planes 2a, 4a of positive- and negative-electrode conductor plates 2, 4; and the first intermediate conductor plate 6 is projected by not less than the same distance as the first and second insulator 32, 34 substantially. Third and forth insulators 36, 38 and a second intermediate conductor plate 8 is projected from the left, right, and upper sides of elevations 2b, 4b of the positive- and negative-electrode conductor plates 2, 4. The second intermediate conductor plate 8 is projected by not less than the same distance as the third and fourth insulator 36, 38 substantially. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供采用绝缘体不容易被外力破坏的层压结构的逆变器装置，即使绝缘体从具有一定长度的导体板突出。解决方案：在逆变器装置中，第一和第二绝缘体32,34以及第一中间导体板6从正极和负极导体板2的平面2a，4a的左，右和前侧突出，4; 并且第一中间导体板6基本上突出有与第一绝缘体32和第二绝缘体34相同的距离。第三绝缘体36,38和第二中间导体板8从正极和负极导体板2,4的高度2b，4b的左，右和上侧突出。第二中间导体板8 基本上与第三和第四绝缘体36,38不小于相同的距离。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006246641A Islanding phenomenon detector for distributed power source 有权
标题翻译：用于分布式电源的岛屿探测器
公开(公告)号：JP2006246641A
公开(公告)日：2006-09-14
申请号：JP2005060536
申请日：2005-03-04
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To accurately detect an islanding phenomenon of distributed power sources by using four or more injection degrees, and eliminating the influence of series resonance phenomena in a distribution system. SOLUTION: This islanding phenomenon detector 30 is equipped with a current injector 32 and a supply stop detector 34. The current injector 32 injects, into a lead-in wire 18, an injection current J m of four or more degrees being non-integer multiple of the fundamental wave of a distribution system and being mutually different degrees. The supply stop detector 34 selects one or more injection degrees in descending order of the value of the voltage in each injection degree in the lead-in wire 18, from among the above four or more injection degrees, and detects the power supply from a high-order system 2 having stopped, from the change of the impedance or admittance of the distribution system in the selected injection degree concerned, and outputs a supply stop signal S. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使用四个或更多喷射度来精确地检测分布式电源的孤岛现象，并消除配电系统中串联谐振现象的影响。解决方案：该孤岛现象检测器30配备有电流注入器32和供给停止检测器34.电流注入器32将注入电流J m注入到引入线18中。四度或更多度是分布系统的基波的非整数倍并且是相互不同的程度。供给停止检测器34从上述四个以上的喷射度中，从引导线18中的每个喷射程度的电压值的降序中选择一个以上的喷射度，并且从高电平检测电源在所选择的喷射程度中，由于分配系统的阻抗或导纳的变化而停止，并输出供给停止信号S.（C）2006，JPO＆NCIPI

9. 发明专利

JP2006034050A Individual operation detection device for distributed power supply 有权
标题翻译：用于分配电源的个体操作检测装置
公开(公告)号：JP2006034050A
公开(公告)日：2006-02-02
申请号：JP2004211947
申请日：2004-07-20
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a device capable of accurately measuring admittance or the like of an injection degree by increasing an SN ratio to background noise of voltage and current by injection current even when the injection current is made reduced, and accurately detecting individual operation of a distributed power supply. SOLUTION: This individual operation detection device includes a current injection device 32 and a supply stop detection device 42 which injects an injection current J m of the injection degree m. The supply stop detection device 42 includes a removal device which removes at least a basic wave voltage element and a basic wave current element of a distribution system from a measured voltage V t and a measured current I t , respectively, an extraction device which extracts and outputs the voltage and the current with the injection degree m from the outputted voltage and current, respectively, and a computation device which calculates the admittance of the injection degree m using the outputted voltage and current. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够通过将注射电流降低而将SN比与注入电流的电压和电流的背景噪声相比增加而准确地测量入射程度的装置，并且准确地检测分布式电源的单独操作。解决方案：该单独的操作检测装置包括注入注入量m的注入电流J SB M m的电流注入装置32和供给停止检测装置42。供电停止检测装置42包括从测量电压V 和测量电流I 去除分配系统的至少基本波电压元件和基本波电流元件的去除装置，分别从输出电压和电流分别提取并输出具有喷射程度m的电压和电流的提取装置和计算装置，该计算装置使用输出的电流和电流计算喷射度m的导纳电压和电流。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005354877A Single operation detector of distributed power supply 有权
标题翻译：分配电源的单个操作检测器
公开(公告)号：JP2005354877A
公开(公告)日：2005-12-22
申请号：JP2004176007
申请日：2004-06-14
申请人： Kansai Electric Power Co Inc:The , Nissin Electric Co Ltd , 日新電機株式会社 , 関西電力株式会社
发明人： YAMAMOTO FUMIO , NISHIMURA SOJI , NATSUDA YASUKAZU
IPC分类号： H02H3/24 , H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a detector for detecting single operation of a distributed power supply accurately by suppressing deterioration in SN ratio for background noise even if the amount of injection current is decreased. SOLUTION: The single operation detector comprises a current injector 32, and a supply stop detector 42. The current injector 32 injects an injection current J m of injection order m repeating an injection interval for supplying an injection current of predetermined magnitude and a noninjection interval where substantially zero injection current sustains for a predetermined interval at a predetermined period into an incoming line 18. The supply stop detector 42 comprises a means for extracting and outputting the voltage and current by the injection current J m by removing background noise from voltage V t and current I t measured at the incoming line 18, and an operating means for calculating the impedance or admittance of injection order m using the output voltage and current from the extraction means. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于通过抑制背景噪声的SN比的劣化来准确地检测分布式电源的单次操作的检测器，即使注入电流的量减少。解决方案：单个操作检测器包括电流注入器32和供给停止检测器42.电流注入器32注射喷射次数m的喷射电流J SB，重复施加喷射间隔预定幅度的注入电流和基本为零的注入电流在预定时间段内以预定间隔维持在输入线18中的非注入间隔。供电停止检测器42包括用于通过注入电流J提取和输出电压和电流的装置通过从在输入线18测量的电压V SB 和电流I t 去除背景噪声，以及用于计算阻抗的操作装置使用来自提取装置的输出电压和电流导入注入订单m。版权所有（C）2006，JPO＆NCIPI

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