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    • 1. 发明专利
    • Power supply system
    • 电源系统
    • JP2005328656A
    • 2005-11-24
    • JP2004145255
    • 2004-05-14
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • SHIICHI HIROYASUKISHIZOE YOSHIHIKOWATANABE MINEONISHIO NAOKIMOTOHASHI JUNHIRAI TAKAO
    • H02J7/35H02J3/38H02J9/06H02M7/48
    • Y02B10/72
    • PROBLEM TO BE SOLVED: To constantly provide power to a load without the need for a complicated procedure for a system linkage, in a distributed power supply system. SOLUTION: The power supply system comprises: a power supply device 5 that outputs DC power; a converter 2 that outputs power from a commercial power system 1 by converting it to DC power; and an inverter 3 that feeds to a load 7 the DC power output from the power supply device 5 and the converter 2 by converting it to AC power having a prescribed frequency and a voltage. The power supply system further comprises a connection switching device 6 that switches a power supply source that feeds power to the load 7 on the basis of prescribed conditions, and a control circuit that controls a phase and an output voltage of the inverter 3 so that they are synchronized with the commercial power system 1. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:在分布式供电系统中,不需要复杂的系统连接程序就可以不断向负载提供电力。 电源系统包括:输出直流电力的电源装置5; 转换器2,其通过将商用电力系统1的功率转换为直流电力来输出功率; 以及逆变器3,其通过将电力转换为具有规定频率和电压的交流电力,将从电源装置5和转换器2输出的直流电力馈送到负载7。 电源系统还包括:连接切换装置6,其根据规定的条件切换向负载7供电的电源;以及控制电路,其控制逆变器3的相位和输出电压,使得它们 与商业电力系统1同步。版权所有(C)2006年,JPO&NCIPI
    • 2. 发明专利
    • Reverse-tidal-current-preventing systematically interconnecting system
    • 逆向电流预防系统互连系统
    • JP2005245136A
    • 2005-09-08
    • JP2004052524
    • 2004-02-26
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • SHIICHI HIROYASUKISHIZOE YOSHIHIKOWATANABE MINEONISHIO NAOKIMOTOHASHI JUNHIRAI TAKAO
    • H02J3/38H02M7/48
    • PROBLEM TO BE SOLVED: To prevent an adverse effect on a load by a reverse tidal current and to secure promptness in the restoring work of a power system after a power failure, in a reverse-tidal-current-preventing systematically interconnecting system. SOLUTION: This system, which is provided with a power converter 5 for converting electric power from a power supply 6 into AC having a prescribed frequency, a controlling device 8 that controls this output, and a current sensor 7 that measures electrical data near an interconnection point with a commercial power system, is configured to control the output of the power converter 5 in such a way that a forward tidal current that flows in from the commercial power system side always becomes a prescribed value or larger based on the data obtained from the current sensor 7, and to carry out the systematical interconnection protective operation judging that the power system is in a power failure when the forward tidal current stops flowing. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了防止逆潮流对负载产生不利影响,并且在断电后确保电力系统的恢复工作的及时性,在防潮流防止系统互连系统 。 解决方案:该系统具有用于将来自电源6的电力转换成具有规定频率的AC的电力转换器5,控制该输出的控制装置8以及测量电气数据的电流传感器7 在与商用电力系统的互连点附近,被配置为以这样的方式控制功率转换器5的输出,使得从商用电力系统侧流入的正向潮流总是基于数据变为规定值或更大 从电流传感器7获得,并且当正向潮流停止流动时,执行判断电力系统处于电力故障的系统互连保护操作。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Device for switching load of transformer
    • 用于切换变压器负载的装置
    • JP2010273430A
    • 2010-12-02
    • JP2009122072
    • 2009-05-20
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • MASUDA NAOKITSUKIMA MITSURUMARUYAMA AKIHIKOMAEDA KOJIMORI KENJIROYOSHINAGA ATSUSHIMOTOHASHI JUN
    • H02J3/00H01H9/54
    • 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
    • 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
    • 4. 发明专利
    • Independent operation preventing device
    • 独立操作防止设备
    • JP2007037354A
    • 2007-02-08
    • JP2005220080
    • 2005-07-29
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • OSHIDA HIDEJIKOWADA YASUYUKIWATANABE MINEOTAKANO TOMIHIROMOTOHASHI JUNTAGUCHI SEIHIRAI TAKAOOISHI KOHEI
    • H02J3/38
    • Y02E40/72Y04S10/123
    • PROBLEM TO BE SOLVED: To provide an independent operation preventing device which can surely prevent independent operation relative to all the distributed power sources linked with a system without being influenced by the balance state between the power generation amount in the system upon the occurrence of independent operation and a load amount, the magnitude of various electric amount variation nor the number of linked distributed power sources, and can satisfy a predetermined control finish target time. SOLUTION: After an initializing condition in a substation 1 is established, a central unit 14 set in the substation 1 sends a transfer intercepting signal relative to the terminal device 5 of the distributed power source 3 having the connection to a high voltage distribution line 2 recognized in advance to execute transfer interception, and then the central unit sends a forced short-circuit signal relative to an interceptor 15 for forced short-circuit set in the substation 1 to temporarily destroy the line-to-line voltage of the high voltage distribution line 2, with all the distributed power sources 7 linked with a low voltage distribution line being stopped. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种独立的防止操作的装置,其能够相对于与系统连接的所有分布式动力源可靠地防止独立操作,而不受系统发生量在发生时的发电量之间的平衡状态的影响 独立运行和负载量,各种电量变化的幅度以及连接的分布式电源的数量,并且可以满足预定的控制完成目标时间。 解决方案:在变电站1的初始化状态建立之后,设在变电站1中的中央单元14相对于具有与高电压分配连接的分布式电源3的终端设备5发送传输拦截信号 线路2预先识别出执行传输拦截,然后中央单元相对于拦截器15发送强制短路信号,用于在变电站1中强制短路设置,以暂时消除高电平的线间电压 电压分配线2与所有与低压配电线路连接的分布式电源7停止。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Distribution system and apparatus and method for deriving set point
    • 分配系统和装置以及用于传送设定点的方法
    • JP2008228428A
    • 2008-09-25
    • JP2007061986
    • 2007-03-12
    • Tokyo Electric Power Co Inc:TheUniv Of Fukui国立大学法人福井大学東京電力株式会社
    • HAYASHI YASUHIROKOBAYASHI NAOKIOISHI KOHEIMOTOHASHI JUN
    • H02J3/12
    • PROBLEM TO BE SOLVED: To derive an optimal set point with which the voltage at each point in a distribution system can be favorably prevented from getting out of a proper range. SOLUTION: The distribution system 100 includes: a distribution transformer 110; multiple high-voltage distribution lines 120; multiple sensors 130; and multiple transformers. It further includes a set point deriving device 140 and a voltage controller 150. The set point deriving device derives set points ((I MIN , V MIN ), (I MAX , V MAX )) of a setting curve, which is a function of the bank sending current I and the secondary sending voltage V at the distribution transformer using the measurement values of current or voltage of the multiple sensors. The voltage controller causes the distribution transformer to supply a sending voltage V corresponding to the bank sending current I to the high-voltage distribution line using a setting curve formed by the derived set points. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了获得可以有利地防止分配系统中每个点处的电压偏离适当范围的最佳设定点。 解决方案:分配系统100包括:配电变压器110; 多个高压配线120; 多个传感器130; 和多个变压器。 它还包括设定点导出装置140和电压控制器150.设定点导出装置导出设定点((I MIN ,V MIN ),(I SB 设定曲线的最大值> MAX ,V MAX )),其是使用电流或电流的测量值来分配发电电流I和配电变压器的次级发送电压V的函数 多个传感器的电压。 电压控制器使得配电变压器使用由导出的设定点形成的设定曲线,将与发电电流I相对应的发送电压V提供给高压配电线。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Tap switching device and on-load tap switching pole transformer
    • TAP切换装置和负载开关切换点变压器
    • JP2013175776A
    • 2013-09-05
    • JP2013097612
    • 2013-05-07
    • Toko Electric Corp東光電気株式会社Tokyo Electric Power Co Inc:The東京電力株式会社
    • MIYAZAKI TOSHIHIKOMOTOHASHI JUNITOI KAZUTOSHIENDO TOMOSHIKOBAYASHI NOBORU
    • H01F29/04
    • PROBLEM TO BE SOLVED: To provide a compact tap switching device capable of performing high-speed silent tap switching with a simple structure in which a driving mechanism is reduced, and to provide an inexpensive silent and space-saving type on-load tap switching pole transformer employing the tap switching device.SOLUTION: A tap switching device 2 includes a solenoid driving unit which performs tap-raising driving by driving main contact driving solenoids 65a, 65b, 65c, 65d, and 65e and a current-limiting resistance contact driving solenoid 66a when tap-raising control is performed from the outside, and performs tap-lowering driving by driving the main contact driving solenoids and the current-limiting resistance contact driving solenoid when tap-lowering control is performed from the outside. Further, an on-load tap switching pole transformer includes the tap switching device mounted thereon.
    • 要解决的问题:提供一种能够以简单的结构进行高速无声抽头切换的紧凑型分接开关装置,其中驱动机构减少,并且提供廉价的无噪声和节省空间的有载分接开关极 采用分接开关装置的变压器。解决方案:抽头切换装置2包括通过驱动主触点驱动螺线管65a,65b,65c,65d和65e进行分接提升驱动的螺线管驱动单元和限流电阻接触驱动螺线管 66a,并且从外部进行抽头降低控制时,通过驱动主触点驱动螺线管和限流电阻接触驱动螺线管来进行抽头降低驱动。 此外,有载分接开关极变压器包括安装在其上的抽头开关装置。
    • 7. 发明专利
    • Tap changer and on-load tap changing pole transformer
    • TAP变频器和负载变压器变压器
    • JP2010093050A
    • 2010-04-22
    • JP2008261423
    • 2008-10-08
    • Toko Electric CorpTokyo Electric Power Co Inc:The東京電力株式会社東光電気株式会社
    • MIYAZAKI TOSHIHIKOMOTOHASHI JUNITOI KAZUTOSHIENDO TOMOSHIKOBAYASHI NOBORU
    • H01F29/04H02B5/02
    • PROBLEM TO BE SOLVED: To provide a compact tap changer capable of changing taps at high speed and quietly while having a simple configuration with less driving mechanism compared with conventional ones, and to provide an inexpensive, quiet, and space-saving on-load tap changing pole transformer by employing the tap changer. SOLUTION: The tap changer includes: a tap-up driving unit for performing a tap-up driving by converting a linear motion of a plunger by a tap-up solenoid to a rotary motion so as to rotate a driving shaft; and a tap-down driving unit for performing a tap-down driving by converting a linear motion of a plunger by a tap-down solenoid to a rotary motion so as to rotate the driving shaft. An on-load tap changing pole transformer mounting the tap changer is provided. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种紧凑型分接开关,能够以较低的速度和静音方式改变水龙头,同时具有简单的结构,与常规的驱动机构相比具有较少的驱动机制,并提供廉价,安静和节省空间的 通过采用分接开关进行变压器变压器。 分接开关包括:分接驱动单元,用于通过将柱塞的直线运动通过分接螺线管转换成旋转运动来进行分接驱动,以使驱动轴旋转; 以及分接驱动单元,用于通过将抽头螺线管的柱塞的直线运动转换成旋转运动来进行抽头驱动,以使驱动轴旋转。 提供安装分接开关的有载分接变压杆变压器。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Device and method for protecting loop system
    • 用于保护环路系统的装置和方法
    • JP2007312583A
    • 2007-11-29
    • JP2006142166
    • 2006-05-22
    • Tokyo Electric Power Co Inc:TheToshiba Corp東京電力株式会社株式会社東芝
    • NISHI AKINORIKOMATA KAZUYATANAKA TOSHIOHORI MASAOFUKUDA KAZUNOBUMOTOHASHI JUNHIRAI TAKAOKOBAYASHI NAOKI
    • H02H7/26
    • PROBLEM TO BE SOLVED: To minimize the blackout region by interrupting a faulty line exactly and selectively at a loop point with no influence of fault current supply from a large user upon occurrent of a fault in a loop system and cooperating with a protector on the substation side easily.
      SOLUTION: Output from current transformers 7Ba-7Bc on each line at a loop point is input by a current input section 101 and converted by a current converting section 102. In a current calculating section 104, a current adding section 111 finds the total current of each line current, a compensation current calculating section 112 finds the compensation current of each line based on the impedance ratio of each line provided from an impedance ratio storage section 103 and the total current obtained at the current adding section 111, and a compensated current calculating section 113 finds the compensated current of each line based on the each line current converted at the current converting section 102, and the compensation current obtained at the compensation current calculating section 112. A faulty line decision section 105 decides a faulty line based on the compensated current of each line.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过在循环点处精确而有选择地中断故障线路来最小化停电区域,在循环系统中发生故障并且与保护器配合时不会对来自大用户的故障电流供应产生影响 在变电站一侧容易。 解决方案:由电流输入部分101输入一个环路点的每条线上的电流互感器7Ba-7Bc的输出,并由电流转换部分102转换。在当前计算部分104中,当前加法部分111找到 每个线路电流的总电流,补偿电流计算部分112基于从阻抗比存储部分103提供的每条线路的阻抗比和在当前相加部分111获得的总电流来求出每条线路的补偿电流,并且 补偿电流计算部113基于在当前转换部分102处转换的每个线路电流以及在补偿电流计算部分112获得的补偿电流来找出每条线路的补偿电流。故障线路决策部分105基于故障线路 对每行补偿电流。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Distribution system operation system and its method
    • 分配系统操作系统及其方法
    • JP2009159735A
    • 2009-07-16
    • JP2007335206
    • 2007-12-26
    • Tokyo Electric Power Co Inc:TheToshiba CorpToshiba Syst Technol Corp東京電力株式会社東芝システムテクノロジー株式会社株式会社東芝
    • KOBAYASHI NAOKIMOTOHASHI JUNHIRAI TAKAOKOMATA KAZUYANISHI AKINORITANAKA TOSHIOKANEKO TAKESHIHORI MASAOFUKUDA KAZUNOBU
    • H02J3/12H02J3/00H02J3/16H02J13/00
    • Y02E40/34Y02E40/74Y02E60/726Y04S10/22Y04S10/24
    • PROBLEM TO BE SOLVED: To enable a stable distribution system operation by enabling power supply to a distribution system including an unexpected large consumer in a conventional manner and by maintaining the voltage of the entire power distribution lines at appropriate values. SOLUTION: The distribution system operation system for supplying power to a distribution system including a large consumer is equipped with multiple loops configured by linking a plurality of power distribution lines 3 via a circuit breaker 8, and with a voltage monitoring controller 16 for controlling the voltage in the distribution system. The voltage monitoring controller 16 estimates the voltage of the entire power distribution line based on the measured information of the plurality of nodes in the distribution system, and when the voltage is not within an appropriate range, the voltage monitoring controller controls the voltage in the distribution system by controlling the voltage regulators 1, 9 set in the distribution system. The multiple loops include distribution lines with and without a branched load. The voltage monitoring controller 16 controls the voltage in the distribution system by enlarging the appropriate range of the voltage in the distribution line without the branched load relative to the distribution line with the branched load, from among the plurality of distribution lines constituting the multiple loops. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过以常规方式为包括意外的大型消费者的分配系统供电并且通过将整个配电线路的电压维持在适当的值来实现稳定的配电系统操作。 解决方案:用于向包括大型消费者的配电系统供电的分配系统操作系统配备有通过断路器8连接多个配电线路3和通过电压监视控制器16配置的多个回路 控制配电系统中的电压。 电压监视控制器16基于分配系统中的多个节点的测量信息来估计整个配电线路的电压,并且当电压不在适当的范围内时,电压监视控制器控制分配中的电压 系统通过控制在配电系统中设置的电压调节器1,9。 多个回路包括具有和不具有分支负载的分配线。 电压监视控制器16从构成多个回路的多个配线中通过扩大分配线中的电压的适当范围而不具有相对于具有分支负载的分配线的分支负载的适当范围来控制分配系统中的电压。 版权所有(C)2009,JPO&INPIT