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41. 发明专利

JP2006311734A Operating method of power supply device and power supply device 有权
标题翻译：电源设备和电源设备的操作方法
公开(公告)号：JP2006311734A
公开(公告)日：2006-11-09
申请号：JP2005132716
申请日：2005-04-28
申请人： Origin Electric Co Ltd , Tokyo Electric Power Co Inc:The , オリジン電気株式会社 , 東京電力株式会社
发明人： OSHIMA MASAAKI , FUKUI JIRO , USHIKI SHUICHI
摘要： PROBLEM TO BE SOLVED: To provide a power supply device configured by connecting, in parallel, a plurality of inverters in which a cross current can be suppressed by a very simple means, and to provide its operating method. SOLUTION: When the output voltage feedback gain is α, the output current feedforward gain is β, and the inverter current gain is G, a plurality of inverters each having a DC resistance represented by (1-β×G)/(α×G) as an equivalent internal impedance are connected in parallel in the power supply device where the plurality of inverters operate at the same frequency. The equivalent internal impedance is varied by varying both or any one of the output voltage feedback gain α and the output current feedforward gain β, and cross current between the inverters is suppressed below an allowable level by regulating the output from each inverter. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种电源装置，其并联连接多个逆变器，其中可以通过非常简单的手段来抑制交叉电流，并提供其操作方法。
解决方案：当输出电压反馈增益为α时，输出电流前馈增益为β，逆变器电流增益为G，多个逆变器各自具有由（1-β×G）/（ α×G）作为等效内部阻抗并联连接在多个逆变器以相同频率工作的电源装置中。通过改变输出电压反馈增益α和输出电流前馈增益β中的任一个或任何一个来改变等效内部阻抗，并且通过调节每个逆变器的输出，将逆变器之间的交叉电流抑制在允许电平以下。版权所有（C）2007，JPO＆INPIT

42. 发明专利

JP2001016862A POWER CONVERTER 失效
公开(公告)号：JP2001016862A
公开(公告)日：2001-01-19
申请号：JP18774599
申请日：1999-07-01
申请人： MITSUBISHI ELECTRIC CORP , TOKYO ELECTRIC POWER CO
发明人： NAKAMURA FUMINORI , TAMAI SHINZO , YAMAMOTO TOUMA , MORI HARUYOSHI , OSHIMA MASAAKI
IPC分类号： H02M7/48 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To reduce waste loss by suppressing direct change between modes 1, 3 in the vicinity of zero cross of an AC output current command. SOLUTION: An AC voltage control means 15 generates an AC output current command of a self-excited voltage type AC/DC converter 6 from a deviation between an AC voltage command generated in an AC voltage command generating means 12 and an actually measured value of load voltage applied to an AC load 7 detected in a voltage detection means 13. A load voltage applied to the AC load 7 is controlled so as to conform to the AC voltage command, but a low-pass filter means is provided as a direct change suppressing means 22 between the voltage detection means 13 and a subtraction means 14, a large component of high change rate of the frequency included in the load voltage is removed. In this way, a large component of change factor included in the AC output current command of the self-excited voltage type AC/DC converter can be removed, direct change between modes 1, 3 is suppressed, the switching frequency can be set lower, consequently losses can be reduced.

43. 发明专利

JPH11341686A DISTRIBUTED POWER SYSTEM 失效
公开(公告)号：JPH11341686A
公开(公告)日：1999-12-10
申请号：JP13967198
申请日：1998-05-21
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： OSHIMA MASAAKI , MIYAZAKI SATOSHI , INAGAKI KATSUHISA , KIKUCHI HITOSHI , NIRASAWA HITOSHI
IPC分类号： H02J3/38 , H02M7/12 , H02M7/155
摘要： PROBLEM TO BE SOLVED: To obtain the cut-off performance similar to a case that a semiconductor element having a self arc-distinguishing function is used in a system linkage switch, even when one with no self-arc-distinguishing function is used. SOLUTION: In a distributed power system constituted of a power converter 4 which is connected parallelly with a load connected to a power system 1 through a system linkage switch 3 and is operated in linkage with the power system 1, and a DC power supply 5 which can be charged and discharged and is connected to the DC side of the power converter 4, the system linkage switch 3 is constituted of a semiconductor element having no self arc-distinguishing function. This distributed power system is provided with a means for controlling the current at a linkage point with the power system 1 to a desired value while the system linkage switch 3 is closed, a means for controlling the voltage of the load 2 to a desired value while the system linkage switch 3 is opened, a means for detecting an abnormality in the power system 1 and then instructing the system linkage switch 3 to open, and a means for changing the current of the power converter 4 so as to reduce a value of the current in the system linkage switch 3 when an abnormality is detected in the power system 1.

44. 发明专利

JPH1038564A AIRBORNE LASER SEPARATION-DISTANCE MEASURING SYSTEM 失效
公开(公告)号：JPH1038564A
公开(公告)日：1998-02-13
申请号：JP19175196
申请日：1996-07-22
申请人： NEC CORP , TOKYO ELECTRIC POWER CO
发明人： MURASHIMA SUSUMU , OSHIMA MASAAKI , ASHITACHI SHUICHI
IPC分类号： G01C7/02 , G01B11/00 , G01B21/00 , G01B21/22 , G01C11/02 , G01C15/00 , G01S13/02 , H02G1/02
摘要： PROBLEM TO BE SOLVED: To thoroughly measure information on position of an object located below an aircraft in its advancing direction and further to record information on the outside air temperature during measurement at the same time. SOLUTION: The laser distance measuring device 11 is provided with first to n-th lasers 21-1 to 21-n and first to n-th detectors 22-1 to 22-n provided correspondingly to the lasers 21-1 to 21-n. n sets of laser and detector are prepared, and the sets of each pair of laser and detector have various visual fields respectively to the advancing direction of aircraft, and they are fitted to entirely cover the field below the aircraft in its advancing direction. In addition, the lasers 21-1 to 21-n emit laser lights at the same time.

45. 发明专利

JPH04282573A SODIUM SULFUR BATTERY MODULE 失效
公开(公告)号：JPH04282573A
公开(公告)日：1992-10-07
申请号：JP4664591
申请日：1991-03-12
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： YASUJIMA HIROMI , KAWAKAMI MITSUO , KAWAMOTO HIROYUKI , HATOU HISAMITSU , KUSAKABE KOJI , OSHIMA MASAAKI , KOBAYASHI AKIRA
IPC分类号： H01M10/39 , H01M2/22 , H01M2/34 , H01M10/42
摘要： PURPOSE:To early and surely cut a generation part of abnormal temperature, when it is generated, by connecting between cells by a conductor fused at a specific temperature. CONSTITUTION:Many cells are arranged in a heat insulating vessel, and a battery module is constituted by connecting a negative pole 4' and a positive pole 12 in series and parallel by a connecting conductor 10. Here, the connecting conductor 12 is made by a metal material of melting temperature a little higher than normal operation temperature of the cell and further lower than a melting point of the lowest melting point material of the constitutional materials of the cell. Thus in the case such as rapidly increasing a temperature in the heat insulating vessel by contact between sodium and sulfur due to damaging an electrolyte and by short-circuiting in the module, the connecting conductor of low melting point metal is melted to enable an abnormality generation part to early and surely separate.

46. 发明专利

JPH044573A NA-S SECONDARY BATTERY 失效
公开(公告)号：JPH044573A
公开(公告)日：1992-01-09
申请号：JP10544490
申请日：1990-04-23
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： HIDA HIROSHI , NISHIMURA MAKOTO , MORI TOSHIKATSU , NISHIMURA SHIGEOKI , OSHIMA MASAAKI , KOBAYASHI AKIRA
IPC分类号： H01M10/39
摘要： PURPOSE:To have discharging and charging in good performance even in the initial period of battery operation by arranging powder or fibers, which have affinity with sodium, are electroconductive, and are dimensioned specifically, over the surface of solid electrolyte on the neg. electrode side. CONSTITUTION:Electroconductive micro-objects 3 having affinity with sodium 4 are arranged over the surface of solid electrolyte 1 on the neg. electrode 2 side, wherein the objects assume the form of either powder of particle sizes no more than 5mum or fibers of 5mum or less in the diameter. Material to the powder or fibers shall be a mixture of carbonaceous substance such as carbon black or graphite, metal such as stainless steel, one or more sorts of electroconductive ceramics such as beta''-alumina. The sodium carried by a wick of stainless steel is sent uniformly onto the surface of the solid electrolyte 1 by the capillary phenomenon of minute particles or fibers filling the surface of the solid electrolyte 1, so that the wettability is enhanced. This ensures discharging and charging in good performance even in the initial period of battery operation.

47. 发明专利

JPH03254072A SODIUM-SULFUR CELL 失效
公开(公告)号：JPH03254072A
公开(公告)日：1991-11-13
申请号：JP5125390
申请日：1990-03-02
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： HATOU HISAMITSU , KAWAMOTO HIROYUKI , KUSAKABE KOJI , YASUJIMA HIROMI , OSHIMA MASAAKI , KOBAYASHI AKIRA
IPC分类号： H01M10/39
摘要： PURPOSE:To reduce direct reaction of sodium with sulfur in the event of battery breakage and enhance the safety by furnishing a member having a lower porosity than conventional fibers at or in the neighborhood of a sodium flowout hole provided in a metal vessel. CONSTITUTION:A metal vessel 5 furnished inside of a solid electrolyte pipe 1 contains sodium 8 as a neg. electrode active substance, and the sodium flows in from the flowout hole 5A at the bottom of the vessel 5 toward the electrolyte pipe 1. The gap between the pipe 1 and vessel 5 is filled with metal fibers 6 which ffed the sodium 8 to the inside surface of the pipe 1. These fibers 6 of several micrometers in dia. shall be compressed so as to have a porosity of 93-97%. The cylindrical fiber 6 bottom 6A shall be located between the vessel 5 and a metal ring 7, which is tightened in the direction of the pipe 1 so as to give a specified porosity. The rate of Na flow from the flowout hole 5A is restricted by allowing the bottom 6A porosity to range 71-89%, and thereby enlargement of direct reaction in the event of pipe 1 breakage is suppressed.

48. 发明专利

JPH03158781A METHOD FOR ESTIMATING RESIDUAL CAPACITY OF SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH03158781A
公开(公告)日：1991-07-08
申请号：JP29668389
申请日：1989-11-15
申请人： HITACHI LTD , TOKYO ELECTRIC POWER CO
发明人： KUSAKABE KOJI , KAWAMOTO HIROYUKI , HATOU HISAMITSU , YASUJIMA HIROMI , OSHIMA MASAAKI , FUJIWARA NOBORU
IPC分类号： G01R31/36
摘要： PURPOSE:To enhance estimation accuracy by obtaining the number of defectless series units from a difference between the series-parallel units of discharge depths, adding the correction by the total number of the series unit to the energization quantity of a set battery with the discharge depth as a beginning point and calculating the respective discharge depths. CONSTITUTION:The set battery 8 is housed into a heat insulating box 10 where the series-parallel units 6 are connected in series. A voltmeter 14 measures the voltage across the units 6 and an ammeter 16 measures the current flowing in external terminals 12a, 12b. The electromotive force E of the units 6 is estimated from a change with time, of the voltage of the units 6 right after the stop of the charge and discharge and the discharge depth D of the units 6 is obtd. by collating the electromotive force E and the theoretical value. The number K of the defectless series units of the units 6 is obtd. by making comparison with depths D each other between the units 6. The charging and discharging current quantity Ah of the battery 8 is obtd. by integrating the current value measured by the ammeter 16 with time and can be referenced at all time. The residual capacity R of the battery 8 is calculated from the max. of the depth D of the units 6, the number K of the units and the number K of the units of the battery 8.

49. 发明专利

JPH0359961A MANUFACTURE OF ELECTRODE TERMINAL FOR SODIUM-SULFUR BATTERY 失效
公开(公告)号：JPH0359961A
公开(公告)日：1991-03-14
申请号：JP19414689
申请日：1989-07-28
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： NAKAMURA MASAAKI , OSHIMA MASAAKI , YOKOI KAZUAKI , KONO AKIOMI , KAWAMOTO HIROYUKI , HATOU HISAMITSU
IPC分类号： H01M2/02 , H01M2/30 , H01M10/39
摘要： PURPOSE:To eliminate fluctuation in electrical resistance for a long time in service so as to obtain stable and high charging efficiency by forming both of a positive electrode and a negative electrode of sulfur and sodium respectively, and joining the outer circumference of a metallic container containing both of said materials with a bus-bar made of Al using an Al insert. CONSTITUTION:Pure Al is used as electrode terminal member 7, wherein no increase in an oxide film at temperature in service of 330 deg.C is allowed while electrical resistance is smaller that that of materials in an iron series, which is roughly one tenth of said material in this case, so that the electrode terminal member 7 is joined with a metallic container 6 by the use of an insert member in an Al-Si series. Thus, since Al small in electrical resistance is used as the electrode terminal, and moreover, connection is sufficiently made with a positive electrode container by the use of the Al insert member, electrical resistance between joint surfaces is extremely small, and there is no sign for an increase in electrical resistance due to temperature in service held for a long time. By this constitution, the charging/discharging efficiency of a battery is enhanced, and the reliable electrode terminal can be obtained.

50. 发明专利

JP2010081797A Controller for system-interconnected power converting system 有权
标题翻译：用于系统互连电力转换系统的控制器
公开(公告)号：JP2010081797A
公开(公告)日：2010-04-08
申请号：JP2009296830
申请日：2009-12-28
申请人： Tokyo Electric Power Co Inc:The , Toshiba Mitsubishi-Electric Industrial System Corp , 東京電力株式会社 , 東芝三菱電機産業システム株式会社
发明人： OSHIMA MASAAKI , KITAHATA TAKESHI , INAGAKI KATSUHISA , NIRASAWA HITOSHI , HIROSE SHUNICHI
IPC分类号： H02J3/18 , H02J3/01 , H02J3/26 , H02J3/32 , H02M7/48 , H02M7/537
CPC分类号： Y02E40/30 , Y02E40/50
摘要： PROBLEM TO BE SOLVED: To surely suppress the bias magnetism of a transformer which is caused by abnormality in a power system. SOLUTION: In this controller for a system-interconnected power converting system, power conversion equipment 1, which has a power storage facility 7 and converts DC into AC or AC into DC, is connected in parallel with a load 8 of a power system, which has a power source 0, via a transformer 2, and the controller is equipped with a system-interconnecting switch 9, which can cut the load 8 and the power conversion equipment 1 off the power system, at a point of interconnecting with the power system. Usually, it stores power in the power storage facility 7 from the side of the power system, and discharges the power from the power storage facility 7, and in abnormal circumstances of the power system, it opens the system-interconnecting switch 9 so as to supply the load 8 with power from the power conversion equipment 1. The controller is equipped with a means which determines the output voltage of the power conversion equipment, limiting the magnitude of the output of only the axial component of either the axial component which accords with the component of the power voltage, or the axial component which crosses the axis at right angles, of a current controller on rotational coordinates which rotate synchronously with the power voltage of the power system, in the case where it is interconnected with the system, with the system-interconnecting switch ON. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：确保抑制由电力系统的异常引起的变压器的偏磁。解决方案：在用于系统互连的电力转换系统的该控制器中，具有蓄电装置7并将DC转换为AC或AC转换为DC的电力转换装置1与电力负载8并联连接系统，其具有通过变压器2的电源0，并且控制器配备有系统互连开关9，其可以将负载8和电力转换设备1从电力系统切断，在与电力系统。通常，从电力系统侧将电力存储在蓄电装置7中，并且从蓄电装置7放电，在电力系统的异常情况下，打开系统互连开关9，以便向电力转换设备1提供负载8的电力。控制器配备有确定功率转换设备的输出电压的装置，仅限制与轴向分量相符的轴向分量的轴向分量的输出的大小在与系统互连的情况下，电流控制器与电力系统的电源电压同步旋转的坐标系上的电源电压的分量或直角的轴向分量，系统互连开关ON。版权所有（C）2010，JPO＆INPIT

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