利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.012 秒)

    Inverter arrangement and AC motor driving system
    2.
    发明公开
    Inverter arrangement and AC motor driving system 失效
    Wechselrichteranordnung und AnsteuersystemfürWechselstrommotor。

    公开(公告)号：EP0512531A2

    公开(公告)日：1992-11-11

    申请号：EP92107689.9

    申请日：1992-05-07

    申请人： HITACHI, LTD. ,  HITACHI TECHNO ENGINEERING CO., LTD.

    发明人： Matsui, Takayuki ,  Horie, Akira ,  Kawakami, Tetsuya ,  Saitoh, Syuuji ,  Toyota, Eiichi ,  Sakata,Kazuhiro ,  Tsuboi,Takashi ,  Nakamura, Kiyoshi ,  Nakata, Kiyoshi ,  Tsutsui, Yoshio ,  Tanamachi, Tokunosuke

    IPC分类号： H02M7/527 ,  B60L9/22

    CPC分类号： H02M7/487 ,  B60L3/0023 ,  B60L9/22 ,  B60L2200/26 ,  B60L2210/20 ,  H02H7/1225 ,  Y02T10/725

    摘要： In a multi series pulse width modulation inverter arrangement, an inverter arrangement which can continue the inverter operation, in particular, by preventing an overcurrent caused by an erroneous firing of a switching element therein is provided. The multi series inverter arrangement is constituted to be operative in three level mode and in two level mode. Even when an erroneous firing thereof due to noise is generated, the operation of the inverter unit (4) can be continued, the overcurrent due to the erroneous firing is eliminated, the present inverter arrangement can be used under a severe noise environment and outputs an AC output having a small amount of higher harmonics, moreover when the inverter arrangement is operating under a three level mode in a low efficiency region, the operating mode of the inverter arrangement is positively switched from the three level mode to the two level mode, thereby the operating efficiency of the inverter arrangement is enhanced.

    摘要翻译： 在多串联脉宽调制逆变器装置中，提供了一种能够继续逆变器操作的逆变器装置，特别是通过防止由其中的开关元件的错误点火引起的过电流。 多串联逆变器装置构成为在三电平模式和二电平模式下工作。 即使当由于噪声而产生其错误的点火时，逆变器单元（4）的操作也可以继续，由于消除了由于错误的点火引起的过电流，本逆变器装置可以在恶劣的环境下使用并输出 交流输出具有少量的高次谐波，而且当逆变器装置在三电平模式下工作在低效率区域时，逆变器装置的工作模式从三电平模式正向切换到二电平模式 提高了逆变器装置的运行效率。

    Inverter apparatus for electric rolling stock
    3.
    发明公开
    Inverter apparatus for electric rolling stock 失效
    维克谢里奇

    公开(公告)号：EP0590502A2

    公开(公告)日：1994-04-06

    申请号：EP93115287.0

    申请日：1993-09-22

    申请人： HITACHI, LTD.

    发明人： Saito, Shuji ,  Tsuboi, Takashi ,  Horie, Akira ,  Ando, Takeshi ,  Toyota, Eiichi ,  Matsui, Takayuki ,  Takaku, Toshihiko ,  Nakata, Kiyoshi ,  Nakamura, Kiyoshi

    IPC分类号： H02M7/537 ,  H02M7/5387 ,  H01L23/34 ,  H05K7/20

    CPC分类号： H02M7/487 ,  B60L9/22 ,  B60L2200/26 ,  B60L2260/28 ,  H01L25/18 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An inverter apparatus for electric rolling stock employs a 3-level inverter including four semiconductor switch modules (SM₁...SM₄) connected in series to DC power source terminals P and N, the node of the first and second semiconductor switch modules and the node of the third and fourth semiconductor switch modules being connected to the neutral point of the DC power source through the intermediation of clamp diodes, the node of the second and third semiconductor switch modules being connected to an AC output terminal. The loss of the first and fourth semiconductor switch modules has a peak during power running of the electric motor constituting the load, and the loss of the second and third semiconductor switch modules has a peak during braking of the electric motor constituting the load. In view of this, a pair of first and second semiconductor switch modules (SM₁,SM₂) and a pair of the third and fourth semiconductor switch modules (SM₃,SM₄), each having a disparity in terms of loss peak, are respectively attached to different heat receiving plates (31,32).

    摘要翻译： 一种用于电动车辆的逆变器装置采用三级逆变器，其包括与直流电源端子P和N串联连接的四个半导体开关模块（SM1 ... SM4），第一和第二半导体开关模块的节点和节点 第三和第四半导体开关模块通过钳位二极管连接到DC电源的中性点，第二和第三半导体开关模块的节点连接到AC输出端子。 第一和第四半导体开关模块的损耗在构成负载的电动机的电力运行期间具有峰值，并且第二和第三半导体开关模块的损耗在构成负载的电动机的制动期间具有峰值。 鉴于此，一对第一和第二半导体开关模块（SM1，SM2）和一对第三和第四半导体开关模块（SM3，SM4）各自具有损耗峰值的差异，分别附于 各对共同的不同的热接收板（31,32），冷却器（53,54）附接到热接收板，由此冷却器的热负荷量被调平，从而达到减小 冷却器。

    AC motor control apparatus and control apparatus of electric rolling stock using the same
    7.
    发明公开
    AC motor control apparatus and control apparatus of electric rolling stock using the same 失效
    控制器，用于交流电动机和控制单元，用于将同一使用电动车辆。

    公开(公告)号：EP0536569A2

    公开(公告)日：1993-04-14

    申请号：EP92115826.7

    申请日：1992-09-16

    申请人： HITACHI, LTD. ,  HITACHI MITO ENGINEERING CO., LTD.

    发明人： Matsui, Takayuki ,  Horie, Akira ,  Saito, Shuji ,  Toyota, Eiichi ,  Sakata, Kazuhiro ,  Ando, Takeshi ,  Tsuboi, Takashi ,  Kawakami, Tetsuya ,  Takaku, Toshihiko

    IPC分类号： H02P7/63 ,  H02M7/527 ,  B60L9/16

    CPC分类号： B60L15/025 ,  B60L9/16 ,  B60L9/22 ,  B60L11/1803 ,  B60L2200/26 ,  B60L2220/12 ,  H02P21/09 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7258

    摘要： There is provided a control apparatus of an AC motor (2) capable of performing stable torque control even over the entire running region of the AC motor. Structurally, a feedback control system (9, 8) for controlling the magnitude of motor primary current, a feedback control system (8, 17) for controlling the exciting component of motor primary current and a feedback control system (8, 18) for controlling the torque component of motor primary current are provided. Torque control is effected by a vector control system (4, 5, 6, 7, 8, 9) in the low speed running region and torque control is effected by a slip frequency control system (16, 10, 19, 20, 21, 22, 23) in the high speed running region, so that torque can be controlled excellently over the entire running region.

    摘要翻译： 提供了一种交流电机（2），其能够即使在AC电动机的整个区域的运行进行稳定的转矩控制的控制装置。 在结构上，一个反馈控制系统（9,8），用于控制电动机的初级电流，反馈控制系统（8,17）的大小来控制马达初级电流的励磁分量和反馈控制系统（8,18），用于控制 设置在电动机初级电流的转矩分量。 转矩控制是由一矢量控制系统（4，5，6，7，8，9）的运行区域和转矩控制是由转差频率控制系统（16，10，19，20，21实现的低速进行， 在高速行驶区域22，23），所以没有扭矩能够很好地在整个运行区域来控制。

    Control apparatus for cascaded converter circuit
    8.
    发明公开
    Control apparatus for cascaded converter circuit 失效
    StekergerätfürKaskadenumformer。

    公开(公告)号：EP0278369A2

    公开(公告)日：1988-08-17

    申请号：EP88101484.9

    申请日：1988-02-02

    申请人： HITACHI, LTD.

    发明人： Matsui, Takayuki ,  Okuyama, Toshiaki ,  Matsutake, Mitsugu ,  Takahashi, Junichi ,  Ito, Masami

    IPC分类号： H02P7/628 ,  H02M1/084 ,  H02M5/27

    CPC分类号： H02P27/06 ,  H02M7/162

    摘要： A converter circuit includes three-phase unit converters (2a, 2b) connected in cascade in two stages for supplying electric power to a load (4; 8). In a region in which the converter output voltage ratio is small, the firing phases of both converters are so set that a phase difference of 120° makes appearance there­between, while in a region in which the converter output voltage ratio is large, the firing phases are so set as to have a phase difference of 60° therebetween, whereby an angular difference of 90° to 30° is caused to occur constantly between the phases of voltage ripple compo­nents of the unit converters. Power factor of a power supply source is improved while ripple in the output voltage of the converter circuit is reduced.

    摘要翻译： A转换器电路包括三级单元转换器（2a，2b），其级联连接两级，用于向负载（4; 8）供电。 在转换器输出电压比小的区域中，两个转换器的点火相位设定为使120°的相位差出现，而在转换器输出电压比大的区域中，烧成阶段 被设定为具有60°的相位差，从而在单位转换器的电压纹波分量的相位之间恒定地发生90°至30°的角度差。 改善了电源的功率因数，同时降低了转换器电路输出电压的波动。

    Inverter apparatus for electric rolling stock
    10.
    发明公开
    Inverter apparatus for electric rolling stock 失效
    电动滚筒逆变装置

    公开(公告)号：EP0590502A3

    公开(公告)日：1995-11-29

    申请号：EP93115287.0

    申请日：1993-09-22

    申请人： HITACHI, LTD.

    发明人： Saito, Shuji ,  Tsuboi, Takashi ,  Horie, Akira ,  Ando, Takeshi ,  Toyota, Eiichi ,  Matsui, Takayuki ,  Takaku, Toshihiko ,  Nakata, Kiyoshi ,  Nakamura, Kiyoshi

    IPC分类号： H02M7/537 ,  H02M7/5387 ,  H01L23/34 ,  H05K7/20

    CPC分类号： H02M7/487 ,  B60L9/22 ,  B60L2200/26 ,  B60L2260/28 ,  H01L25/18 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An inverter apparatus for electric rolling stock employs a 3-level inverter including four semiconductor switch modules (SM₁...SM₄) connected in series to DC power source terminals P and N, the node of the first and second semiconductor switch modules and the node of the third and fourth semiconductor switch modules being connected to the neutral point of the DC power source through the intermediation of clamp diodes, the node of the second and third semiconductor switch modules being connected to an AC output terminal. The loss of the first and fourth semiconductor switch modules has a peak during power running of the electric motor constituting the load, and the loss of the second and third semiconductor switch modules has a peak during braking of the electric motor constituting the load. In view of this, a pair of first and second semiconductor switch modules (SM₁,SM₂) and a pair of the third and fourth semiconductor switch modules (SM₃,SM₄), each having a disparity in terms of loss peak, are respectively attached to different heat receiving plates (31,32).