High voltage switch provided with metal container filled with insulating gas
    163.
    发明专利
    High voltage switch provided with metal container filled with insulating gas 审中-公开
    带绝缘气体的金属容器提供的高压开关

    公开(公告)号:JP2008147183A

    公开(公告)日:2008-06-26

    申请号:JP2007306805

    申请日:2007-11-28

    CPC classification number: H01H33/74 H01H2033/888

    Abstract: PROBLEM TO BE SOLVED: To provide a high voltage switch with high reliability in operation by increasing insulation strength.
    SOLUTION: A quench chamber includes a housing arranged along an axis, an arcing contact device held in the housing, an exhaust gas volume of which a boundary is drawn by the housing, and an exit channel for exhaust gas 9 which passes through a wall surface of the housing. An edge 21 which passes around the axis in an annular shape, and is electrically shielded is arranged on one end surface 20 of a housing attachment 18. A flow of the exhaust gas 9 coming out from the exit channel is separated from the housing attachment 18 by the edge 21. Because the exhaust gas 9 is separated from the housing attachment 18 by the edge 21, the gas enters the metal container in a form of a gas jet 30 of which a boundary in a diameter direction is drawn on an outside.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:通过提高绝缘强度来提供高可靠性的高压开关。 解决方案:骤冷室包括沿着轴线布置的壳体,保持在壳体中的电弧接触装置,由壳体吸引边界的排气体积和通过的废气出口通道9 壳体的壁面。 围绕轴线环绕并被电屏蔽的边缘21设置在壳体附件18的一个端面20上。从出口通道出来的排气9的流动与壳体附件18分离 由于废气9通过边缘21与壳体附件18分离,所以气体以气体射流30的形式进入金属容器,气体喷射30的直径方向的边界在外侧被拉伸。 版权所有(C)2008,JPO&INPIT

    Converter circuit for switching a large number of switching voltage level

    公开(公告)号:JP2007508792A

    公开(公告)日:2007-04-05

    申请号:JP2005509402

    申请日:2003-11-20

    CPC classification number: H02M7/483 H02M2007/4835

    Abstract: 多数のスイッチング電圧レベルをスイッチングするためのコンバータ回路が規定される。 このコンバータ回路は、各相(R,Y,B)のためのn個の第一スイッチング・グループ(1.1, ..., 1.n)を有している。 ここで、第n番目の第一スイッチング・グループ(1.n)は、第一電力半導体スイッチ(2)及び第二電力半導体スイッチ(3)により構成され、第一番目の第一スイッチング・グループ(1.1)から第(n−1)番目の(第一)スイッチング・グループ(1.(n-1))までは、それぞれ、第一電力半導体スイッチ(2)及び第二電力半導体スイッチ(3)、並びに第一及び第二電力半導体スイッチ(2,3)に接続されたキャパシタ(4)により構成されている。 n個の第一スイッチング・グループ(1.1, ..., 1.n)のそれぞれは、それぞれ隣接する 第一スイッチング・グループ(1.1, ..., 1.n)に直列に接続され、第一番目の第一スイッチング・グループ(1.1)の中の第一及び第二電力半導体スイッチ(2,3)は、互いに接続されている。 前記コンバータ回路に蓄えられる電気的エネルギーの量を少なくするため、n≧1 であり、且つ、p個の第二スイッチング・グループ(5.1, ..., 5.p)及びp個の第三スイッチング・グループ(6.1, ..., 6.p)が設けられ、それらは、それぞれ、第一電力半導体スイッチ(2)及び第二電力半導体スイッチ(3)、並びに第一及び第二電力半導体スイッチ(2,3)に接続されたキャパシタ(4)により構成されている。 ここで、p≧1 であり、且つ、p個の第二スイッチング・グループ(5.1, ..., 5.p)のそれぞれは、それぞれ隣接する第二スイッチング・グループ(5.1, ..., 5.p)に対して直列に接続され、p個の第三スイッチング・グループ(6.1, ..., 6.p)のそれぞれは、それぞれ隣接する第三スイッチング・グループ(6.1, ..., 6.p)に対して直列に接続されている。 第一番目の第二スイッチング・グループ(5.1)は、第n番目の第一スイッチング・グループ(1.n)の中の第一電力半導体スイッチ(2)に接続され、第一番目の第三スイッチング・グループ(6.1)は、第n番目の第一スイッチング・グループ(1.n)の中の第二電力半導体スイッチ(3)に接続されている。 更に、第p番目の第二スイッチング・グループ(5.p)の中のキャパシタ(4)は、第p番目の第三スイッチング・グループ(6.p)の中のキャパシタ(4)に対して直列に接続されている。
    【選択図】 図1a

    Method of operating rotary electric machine
    165.
    发明专利
    Method of operating rotary electric machine 有权
    操作旋转电机的方法

    公开(公告)号:JP2006174697A

    公开(公告)日:2006-06-29

    申请号:JP2005357817

    申请日:2005-12-12

    CPC classification number: H02P23/30

    Abstract: PROBLEM TO BE SOLVED: To provide a method of operating a rotary electric machine that is adapted to prevent power semiconductor switches from rapidly deteriorating, by reducing the switching frequencies of the power semiconductors. SOLUTION: A method of operating a rotary electric machine is identified. The rotary electric machine is connected to a transducer circuit having a DC voltage circuit in phase, in order to connect at least two voltage levels, and the phase of the transducer circuit is connected to the DC voltage circuit, depending on the combination of switching states in which switching states are selected for the power semiconductor switches inside the transducer circuit. In order to reduce the switching frequencies of the power semiconductor switches, predictions are made, with regard to further behaviors of the entire system. In accordance with the predictions, selections are made, with regard to the number of transitions from preceding selected combinations of switching states to the selected combinations of the switching states, starting from selected combinations of switching states where optimum combinations of switching states precede, and with regard to respective predetermined value ranges, with respect to the torques of the rotary electric machines and stator magnetic fluxes of rotary electric machines, and potentials at sub-connections. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种通过降低功率半导体的开关频率来操作适于防止功率半导体开关快速劣化的旋转电机的方法。

    解决方案:识别旋转电机的操作方法。 旋转电机连接到具有同相的直流电压电路的换能器电路,以便连接至少两个电压电平,并且根据开关状态的组合,换能器电路的相位连接到直流电压电路 其中对于换能器电路内的功率半导体开关选择开关状态。 为了降低功率半导体开关的开关频率,关于整个系统的进一步行为,进行了预测。 根据预测,关于从先前选择的开关状态的组合到所选择的开关状态的组合的转换次数,从开关状态的最佳组合的选择的组合开始,并且与先前选择的开关状态的组合相关联 相对于旋转电机的转矩和旋转电机的定子磁通量的各个预定值范围以及子连接处的电位。 版权所有(C)2006,JPO&NCIPI

    ESTIMATION OF STATE OF POWER TRANSMISSION NETWORK

    公开(公告)号:JP2003235180A

    公开(公告)日:2003-08-22

    申请号:JP2002369924

    申请日:2002-12-20

    Abstract: PROBLEM TO BE SOLVED: To make out a method, a computer program, and a system for estimating the state of a power transmission network using less measured values. SOLUTION: In a method, a computer program, and a system for estimating the state of a power transmission network, the phasor measurement of a time stamp is performed by feather measurement instruments (1) arranged in the first set positions (11 and 12) within the network, the phasor of a plurality of voltages or currents is estimated in the second set position, the first set positions (11 and 12) and the second set positions are apart from each other, and the state of network elements (L4, L5, and 13) far away from the phasor measuring instrument is estimated from a phasor estimated value and estimated phasor. COPYRIGHT: (C)2003,JPO

    METHOD FOR MANUFACTURING BUFFER ELEMENT FOR REDUCING MECHANICAL STRESS

    公开(公告)号:JP2002141364A

    公开(公告)日:2002-05-17

    申请号:JP2001249801

    申请日:2001-08-21

    Abstract: PROBLEM TO BE SOLVED: To provide a method for more simply manufacturing a buffer element and the more stable buffer element. SOLUTION: The method for manufacturing the buffer element manufactures the self-supported buffer element having a region capable of substantially independently expanding or contracting in order to reduce a mechanical stress between two materials having different thermal expansion coefficients. The method comprises the steps of deforming a metal sheet (1) to three-dimensional structures (1', 1") so as to divide the structures (1', 1") into regions capable of substantially independently expanding and contracting, resultantly pressing the structures (1', 1"), and working to form a structure plate (P). This method can be used to manufacture the buffer element. The buffer element is simply manufactured, and particularly an application to a semiconductor technique can be stably and simply handled.

    DISCONNECTOR
    168.
    发明专利
    DISCONNECTOR 审中-公开

    公开(公告)号:JP2002133980A

    公开(公告)日:2002-05-10

    申请号:JP2001267073

    申请日:2001-09-04

    Abstract: PROBLEM TO BE SOLVED: To provide a disconnector which has a high dielectric strength, and can be simply and inexpensively manufactured in small size. SOLUTION: The disconnector provides two insulated contacts (2) disposed in a conductive capsule container (1) filled with essentially insulating gas, and an insulated finger (3) movable between the insulated contacts. An insulating coating (7) is formed in the capsule container and has a protrusion (8) protruding toward the inner. The insulating coating prevents a spark generated in the disconnector from flashing over the capsule container (1) when the disconnector is opened. Another protrusion (9) prevents the spark from propagating toward the insulated contacts (2).

    METHOD FOR CO-GENERATING ELECTRICITY AND PRODUCT FLOW CONTAINING AT LEAST ONE NORMALLY-LIQUID HYDROCARBON

    公开(公告)号:JP2001214174A

    公开(公告)日:2001-08-07

    申请号:JP2000374913

    申请日:2000-12-08

    Abstract: PROBLEM TO BE SOLVED: To provide a method for co-generating electricity and product flow containing at least one formally-liquid hydrocarbon. SOLUTION: An electric power generating system is operated by burning a first part of a composition which is gaseous under normal conditions containing methane. At least part of the electricity is used for operating a dielectric barrier discharge reactor having at least one of a first electrode device, a second electrode device, and a layer of a normally-solid dielectric material positioned between the first electrode device and the second electrode device. The second part of the composition is introduced into the reactor. The second part of the composition is subjected to dielectric barrier discharge in the presence of a normally-solid catalyst. The second part of the composition is turned to a product flow containing at least one normally-liquid hydrocarbon.

    PRESSURIZED GAS-BLAST CIRCUIT BREAKER

    公开(公告)号:JP2001076596A

    公开(公告)日:2001-03-23

    申请号:JP2000250042

    申请日:2000-08-21

    Abstract: PROBLEM TO BE SOLVED: To provide a pressurized gas-blast breaker capable of extinguishing an arc reliably and requiring no large driving energy. SOLUTION: This pressurized gas-blast circuit breaker is provided with an arc region and first and second piston chambers 7, 8 divided by a piston 6 in a piston chamber, and both piston chambers 7, 8 are communicated with the arc region via a common gas passage 11. The first piston chamber 7 has a first opening 10 for discharging the compressed arc extinguishing gas, a second opening 12 is arranged in the piston chamber communicating the second piston chamber 8 with the gas passage 11 at least sometimes, the first opening 10 and second opening 12 merge with the gas passage 11, and the gas passage 11 flows into the arc region on the gas passage side. The first opening 10 flows into the gas passage 11 on the arc region side of the second opening 12, and the second opening 12 flows into the gas passage 11 on the arc region side of the first opening 10.

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