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1. 发明专利

JPS6393640A RELAY METHOD WITH DIFFERENT FREQUENCY MIXED CONTACT PROTECTING FOR AC FEEDER CIRCUIT 失效
公开(公告)号：JPS6393640A
公开(公告)日：1988-04-23
申请号：JP7522786
申请日：1986-03-31
申请人： RAILWAY TECHNICAL RES INST , NIPPON TETSUDO KENSETSU KODAN , TSUDA DENKI KEIKI KK
发明人： MOCHINAGA YOSHIFUMI , HISAMIZU TAIJI , SHUDO NORIO , TAKANO HIKARI , HAMADA HIRONORI , UCHIDA KYUKICHI , ARAKI HISANAO , KITAGAWA TETSUZO
IPC分类号： B60N3/04 , B60M3/04 , H02H3/50
摘要： PURPOSE:To protect an AC feeder circuit surely by sensing the power supply current in AC feeding circuit having a cable butted part by a different frequency power supply, and by shutting the own power supply when the action element (rated frequency component in the other power supply) has attained the set value. CONSTITUTION:A feeder cable 2 of an own power supply with a rated frequency of 50Hz has a breaker 3, and a butted part with a feeder cable of other power supply with a rated frequency of 60Hz is furnished on the extension of said feeder cable 2. Here a current transformer 4 is furnished to sense the current flowing in the feeder cable 2, and the sensed current is fed to a different frequency rectifier circuit 6 and a rated frequency rectifier circuit 7 via a current/ voltage converter 5. Separation is made into 60Hz component E1 and 50Hz component E2 at these rectifier circuits 6, 7, and the component E1 is used as action element while the component E2 used as suppression element E2' upon attenuation 12. The feeder cable 2 is broken by the breaker 3 when the action element has attained the set value and the difference between the action element and suppression element has exceeded the specified value.

2. 发明专利

JPH07237474A AC FEEDER CIRCUIT AND EXISTING LINE-NEW SHINKANSEN LINE SWITCHING CONSTRUCTION METHOD USING THIS AC FEEDER CIRCUIT 失效
公开(公告)号：JPH07237474A
公开(公告)日：1995-09-12
申请号：JP3041694
申请日：1994-02-28
申请人： NIPPON TETSUDO KENSETSU KODAN , RAILWAY TECHNICAL RES INST , TOSHIBA CORP
发明人： KINOSHITA SHINICHI , YAGI HIDEYUKI , MOCHINAGA YOSHIFUMI , HISAMIZU TAIJI , WADA JUNJI
IPC分类号： B60M3/02 , B60M3/04
摘要： PURPOSE:To supply stable power and further to attain smooth switching from existing line specification to new Shinkansen line specification by providing a tap, switching trolley wire voltage to the new Shinkansen line specification and to the existing line specification, in an autotransformer of 1:n system. CONSTITUTION:In the case of running an existing line electric rolling stock 6 on a rail 5 of existing line specification, power supply voltage of 55kV is supplied as the existing line specification from a substation 1 accross a trolley wire 2 and a feeder wire 3. A switching tap 7 of an autotransformer 4 is left as switched to a side of an existing line specification contact B. In the case of switching to new Shinkansen line specification, the power supply voltage of the substation 1 is switched to 63kV, and the switching tap 7 is switched to a new Shinkansen line specification contact A. Even before and after switching by the switching tap 7, since voltage between rail/feeder is fixed to switch only trolley wire voltage matched with the existing line/new Shinkansen line, changing the power supply voltage from the substation is only required by a voltage difference 8kV between the existing line specification and the new Shinkansen line specification.

3. 发明专利

JPS62225439A RAIL ELECTRIC POTENTIAL PREVENTING DEVICE FOR NON-SYNCHRONOUS AND DIFFERENT FREQUENCY SOURCE BUTT SPOT 失效
公开(公告)号：JPS62225439A
公开(公告)日：1987-10-03
申请号：JP6967386
申请日：1986-03-27
申请人： RAILWAY TECHNICAL RES INST , NIPPON TETSUDO KENSETSU KODAN , SHIZUKI ELECTRIC
发明人： MOCHINAGA YOSHIFUMI , FUJIE HIROSHI , TAKANO HIKARI , HAMADA HIRONORI , HAYASHI MASAMI , OKAZAKI YOSHIYUKI
IPC分类号： B60M5/00
摘要： PURPOSE:To prevent the generation of an abnormally high rail electric potential due to a train load, by a method wherein a discharge means, performing short- circuiting operation at a constant voltage or more, is situated between a rail and earth. CONSTITUTION:A discharger 7 is located between the portion, running between insulating parts RS1-RS2, of a rail 4 and earth 6, and the discharger, actuated at a voltage, e.g., 500-1,000V, being so high enough to prevent damage of the insulating part, is employed. In which case, when an abnormally high rail electric potential due to a train load is generated, the electric potential is discharged to the earth 6, and this discharge enables prevention of the generation of a high electric potential. Thus, the rail insulating parts RS1 and RS2 can be prevented from damage, and stable motion can be provided even in a high current region during failure in operation of a feeding circuit. As a result, stable train operation can be ensured in a non-synchronous source butt spot or a different frequency source butt spot.

4. 发明专利

JPH0670450A AC FEEDER-CIRCUIT FAILURE SELECTIVE RELAY FOR ELECTRIC RAILWAY 失效
公开(公告)号：JPH0670450A
公开(公告)日：1994-03-11
申请号：JP21524092
申请日：1992-08-12
申请人： RAILWAY TECHNICAL RES INST , TSUDA DENKI KEIKI KK
发明人： MOCHINAGA YOSHIFUMI , HISAMIZU TAIJI , UCHIDA AKIRA , KITAGAWA TETSUZO
IPC分类号： H02H3/44
摘要： PURPOSE:To provide an AC feeder-circuit failure selective relay, for an electric railway in which a failure can be detected quickly and surely even when the failure of a feeder circuit occurs during regenerative braking of a vehicle for performing AC regeneration. CONSTITUTION:A CPU15 operates data from an analog-digital conversion circuit 14 on the basis of a program stored beforehand, detects the change of the feeding current of first and second feeder circuits as vector quantity, and outputs an interruption command for interrupting the first or second feeder circuit when the absolute value of the vector quantity is higher than a predetermined value. DSP16 conducts an operation requiring time at high speed on the basis of a command from the CPU15 to assist the CPU15. A relay 17 operates, e.g. a circuit breaker for opening the first or second feeder circuit on the basis of a command from the CPU15. A display part 18 displays various set points, operating state of the relay part 17, etc., on the basis of a command from the CPU15.

5. 发明专利

JP2000147048A FAULT-DISCRIMINATING DEVICE FOR AC BT FEEDING CIRCUIT 失效
公开(公告)号：JP2000147048A
公开(公告)日：2000-05-26
申请号：JP32623598
申请日：1998-11-17
申请人： RAILWAY TECHNICAL RES INST , TSUDA DENKI KEIKI KK
发明人： MOCHINAGA YOSHIFUMI , TODA HIROYASU , HISAMIZU TAIJI , NAKATANI SHINICHI , ISHIWAKI FUMITAKE
IPC分类号： G01R31/08 , B60M3/00
摘要： PROBLEM TO BE SOLVED: To provide a fault-discriminating device for AC BT feeding circuit, etc., which can discriminate the occurrence of a short-circuiting fault in the booster transformer feeding circuit of an AC electric railway more accurately. SOLUTION: A fault discriminating device discriminates the occurrence of a short-circuiting fault in the booster transformer feeding circuit of an AC electric railway, constituted by stretching a negative feeder line NF, to one end of which AC power is supplied from a substation, and a trolley line T in parallel with rails R and installing at least one booster transformer BT along the lines NF and T, and then, connecting the lines NF and rails R to each other with booster lines at every section divided by the transformers BT. The device is provided with booster line current detecting sections 109a-109d which detect that the currents flowing through the booster lines exceed a set value at every booster line and a fault detecting section 112 which discriminates, that when it is detected that the current flowing through at least one booster line exceeds the set value, a short-circuiting fault occurs in the section where the booster line is connected and corrects the reactance values of capacitors 107a-107b for remedying voltage.

6. 发明专利

JP2007078645A Failure orienting apparatus for alternating current at feeding circuit 有权
标题翻译：用于在馈电电路上替换电流的故障指向装置
公开(公告)号：JP2007078645A
公开(公告)日：2007-03-29
申请号：JP2005270576
申请日：2005-09-16
申请人： Jr Soken Denki System:Kk , Railway Technical Res Inst , Toshiba Corp , 株式会社ジェイアール総研電気システム , 株式会社東芝 , 財団法人鉄道総合技術研究所
发明人： SATAKE NOBUHIKO , YAMAZAKI SHUJI , KAMIMURA OSAMU , ITO KENJI , HISAMIZU TAIJI , UTSUKA TETSUO , MOCHINAGA YOSHIFUMI
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To certainly determine a failure type and a failure occurrence section without being affected by a failure occurring near a section boundary or joint-disconnection of a vertical line tie switch.
SOLUTION: This failure orienting apparatus comprises a section group orientation information acquiring means 1b that receives sample amount information transmitted from sample amount measuring apparatuses arranged at both ends between a plurality of AT sections, classifies and stores the AT sections of the same power source group from the sample amount information, and selects and stores the sample amount information of the group of failure occurrence. This failure orienting apparatus also comprises a failure section information selecting means 1c for selecting and storing orientation information at both ends of the failure section required for orienting the failure point section ratio from the orientation information of the failure group selected and stored by the section group orientation information means. This apparatus also comprises a failure point section ratio orienting means 1d for calculating the failure point section ratio based on the orientation information at both ends of the failure section selected by the failure section information selecting means, and a failure point distance calculating means 1e for calculating the absolute distance from a start point of a electric overhead line to the failure point based on the failure point orientation value at the failure section distance determined by the failure point section ratio orienting means.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：确切地确定故障类型和故障发生部分，而不受在断面边界附近发生的故障或垂直连线开关的断开连接的影响。解决方案：该故障定向装置包括：段组取向信息获取装置1b，其接收从布置在多个AT部分之间的两端的样本量测量装置发送的采样量信息，对相同功率的AT部分进行分类和存储源组，并选择并存储故障发生组的采样量信息。该故障定向装置还包括故障部分信息选择装置1c，用于从根据部件组方向选择和存储的故障组的定向信息中选择并存储故障部分比率所需的故障部分的两端的方向信息信息手段。该装置还包括：故障点比例取向装置1d，用于根据由故障部分信息选择装置选择的故障部分的两端的方向信息和用于计算故障点距离计算装置1e的故障点距离计算装置基于由故障点比率定向装置确定的故障部分距离处的故障点定向值，从电架空线的起点到故障点的绝对距离。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2003260963A RAIL ELECTRIC POTENTIAL REDUCTION ALTERNATIVE CURRENT FEEDING CIRCUIT 审中-公开
公开(公告)号：JP2003260963A
公开(公告)日：2003-09-16
申请号：JP2002061722
申请日：2002-03-07
申请人： RAILWAY TECHNICAL RES INST , TOSHIBA CORP
发明人： MOCHINAGA YOSHIFUMI , HISAMIZU TAIJI , YOSHISHIKI YUKINOBU , MASUYAMA TAKAO
IPC分类号： B60M3/02
摘要： PROBLEM TO BE SOLVED: To prevent a rail electric potential from rising even if an AT territory is lengthened in an AT electric current feeding system. SOLUTION: Low resistance grounding is carried out at a CPW point where a protective line and the impedance bond neutral point are connected to each other between the point (AT point) where an automatic transformer (AT) is installed and another AT point. As a result, when an electric train reaches the center between AT points, the maximum potential itself generated in the rail at the position is reduced to approximately one fourth compared with that in the case where any measures such as CPW and grounding are not taken. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2003116201A DEVICE FOR TESTING CURRENT COLLECTION OF PANTAGRAPH 审中-公开
公开(公告)号：JP2003116201A
公开(公告)日：2003-04-18
申请号：JP2001308748
申请日：2001-10-04
申请人： RAILWAY TECHNICAL RES INST , SUMITOMO ELECTRIC INDUSTRIES , MEIDENSHA ELECTRIC MFG CO LTD
发明人： SHIMADA TAKEFUMI , OKUI AKINOBU , SATO YUSUKE , MOCHINAGA YOSHIFUMI , HIGUCHI HARUICHI , MATSUZAKI HIDEKI , KAMIMURA TADASHI
IPC分类号： H01R41/00 , B60L3/00 , B60L5/24
摘要： PROBLEM TO BE SOLVED: To solve the problems of durability, cost, weight, etc., in a conventional way where some tires of a truck are spiked and a collective current is led to a measurement instrument through a rail so as to detect the collective current of a pantagraph using the measuring instrument on a ground side. SOLUTION: An optical fiber cable 20 is wound on a drum 21; the optical fiber is veered out of the drum according to the travelling speed of the truck 3; one end of the optical fiber is optically coupled with the truck and the other end is optically coupled with the measurement instrument 9; a grounding brush which lets the collective current of the pantagraph 6 flow as a ground current at travelling of the truck is provided; the ground current by the grounding brush is converted into an optical signal by a shunt resistor and an electric-to- light converter is inputted from one end of the optical fiber; and the optical signal is led in the measurement instrument 9 so as to perform the test of current collection.

9. 发明专利

JP2002064929A DISTANCE RELAY FOR AC FEEDER CIRCUIT 失效
公开(公告)号：JP2002064929A
公开(公告)日：2002-02-28
申请号：JP2000250050
申请日：2000-08-21
申请人： RAILWAY TECHNICAL RES INST , TOSHIBA CORP
发明人： MOCHINAGA YOSHIFUMI , TODA HIROYASU , HISAMIZU TAIJI , KAMIMURA OSAMU , NAGASAKI HIROMI , MASUYAMA TAKAO
IPC分类号： H02H3/40 , H02H3/44
摘要： PROBLEM TO BE SOLVED: To provide a distance relay for an AC feeder circuit capable of restraining unwanted operation caused by the current from an electric rolling stock which regenerates AC power and controls a high power rate, and detecting malfunctions in the feeder circuit speedily and perfectly. SOLUTION: The voltages and currents of an AC feeder circuit are taken as samples at prescribed intervals. An input impedance vector Zd is computed from the current data id,..., id-n and voltage data vd,..., vd-n, and an accident determining output Zd=1 is performed. From the current data, a fundamental wave 1f component and an arbitrary low harmonic component are determined by filtering, and a harmonic component percentage content Σf% to the fundamental wave 1f component is determined. An electric rolling stock current determining output Hf=1 is performed. A current vector variation ΔIV is determined from the current data, and a current vector rapid change determining output ΔIV=1 is performed. When respective determining outputs Zd=[0, 1], Hf=[0, 1], ΔIV=[0, 1] meet predetermined logical conditions, an operation output OUT=1 for opening a feeder breaker is performed.

10. 发明专利

JP2001260718A DC POWER SUPPLY FACILITY FOR ELECTRIC RAILROAD 失效
公开(公告)号：JP2001260718A
公开(公告)日：2001-09-26
申请号：JP2000073282
申请日：2000-03-16
申请人： RAILWAY TECHNICAL RES INST , MEIDENSHA ELECTRIC MFG CO LTD
发明人： MOCHINAGA YOSHIFUMI , NAKAMICHI YOSHINOBU , HASE SHINICHI , KAMIMURA TADASHI , WATANABE HIDEO
IPC分类号： H01G9/28 , B60M3/02 , H02J7/34
摘要： PROBLEM TO BE SOLVED: To solve the problem with the use of a storage battery as an energy storage device that it cannot be quickly charged and discharged and the problem with the use of an electric double-layer capacitor that it cannot be charged and discharged by a large capacity. SOLUTION: A storage battery 11 and an electric double-layer capacitor 12 are provided as power storage devices. A controller 13 is capable of individually controlling the charge and discharge of the storage battery and the capacitor by means of switch circuits 13A and 13B and capable of paralleling them off, and controls charge and discharge between each of the storage battery and the capacitor and a feeder by means of a step-up/ step-down chopper 13C. In another embodiment, the storage battery and the capacitor are provided with respective individual controllers to individually control the charge and discharge thereof.

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