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42 条记录 (耗时 0.019 秒)

    ROLLING STOCK SYSTEM AND CONTROL METHOD THEREOF
    2.
    发明申请
    ROLLING STOCK SYSTEM AND CONTROL METHOD THEREOF 有权
    滚动系统及其控制方法

    公开(公告)号：US20120000739A1

    公开(公告)日：2012-01-05

    申请号：US13256391

    申请日：2010-03-12

    申请人： Masayuki Nogi ,  Katsuhisa Inagaki ,  Kazuaki Yuuki ,  Yosuke Nakazawa ,  Satoshi Koizumi

    发明人： Masayuki Nogi ,  Katsuhisa Inagaki ,  Kazuaki Yuuki ,  Yosuke Nakazawa ,  Satoshi Koizumi

    IPC分类号： B60L5/00 ,  B60L3/04

    CPC分类号： B60M3/04 ,  B60L3/04 ,  B60L3/12 ,  B60L5/00 ,  B60L7/16 ,  B60L9/08 ,  B60L9/28 ,  B60L11/1801 ,  B60L2200/26 ,  B60L2220/42 ,  B60L2270/20 ,  Y02T10/646 ,  Y10T307/707 ,  Y10T307/713 ,  Y10T307/718

    摘要： A breaker 162 is opened when a pantograph 101 is lowered. The pantograph 101 is connected to an overhead wire 200. Voltage and its phase of the overhead wire are detected by a detector 161. Power is supplied from a power storage device 150c to a tertiary winding 112c via a power converter 14c such that a primary side of the main transformer 110 has the same voltage and phase as the overhead wire so as to reversely excite the main transformer 110. When the voltage of the main transformer 110 has the same phase as the voltage of the overhead wire 200, the breaker 162 is turned on and then the pantograph 101 is raised, to connect the overhead wire 200 and the main transformer 110 to each other, thereby preventing the occurrence of an excitation inrush current to the main transformer 110.

    摘要翻译： 当缩放仪101下降时，断路器162打开。 受电弓101连接到架空线200.架空线的电压及其相位由检测器161检测。电力通过功率转换器14c从功率存储装置150c提供给第三绕组112c，使得初级侧 主变压器110具有与架空线相同的电压和相位，以便反向激励主变压器110.当主变压器110的电压与架空线200的电压具有相同的相位时，断路器162为 接通，然后升降仪101将架空线200和主变压器110彼此连接，从而防止向主变压器110发出励磁浪涌电流。

    Electric train control apparatus
    3.
    发明授权
    Electric train control apparatus 有权
    电动火车控制装置

    公开(公告)号：US07904216B2

    公开(公告)日：2011-03-08

    申请号：US12852725

    申请日：2010-08-09

    申请人： Yosuke Nakazawa ,  Tetsu Tone

    发明人： Yosuke Nakazawa ,  Tetsu Tone

    IPC分类号： B60L9/18

    CPC分类号： B60L9/22 ,  B60L3/0023 ,  B60L3/10 ,  B60L15/20 ,  B60L2200/26 ,  B61C15/00 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7275

    摘要： According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state monitoring units.

    摘要翻译： 根据一个实施例，一种电动列车控制装置，具有多个电动机和多个逆变器，其被配置为分别彼此独立地控制电动机，包括轴速度计算单元，并且被配置为计算电动机的轴速度，参考 速度计算单元，被配置为从电动机的轴速度计算参考速度;加速度检测控制单元，被配置为从计算出的轴速度的速率计算转矩降低值;配置为根据轴速度之间的差异来减小转矩的滑差速度控制单元 电动机的状态监视单元，被配置为监视轴速度和输出状态信号的状态的状态监视单元;以及转换单元，被配置为根据加速度检测控制单元进行的控制和由滑差速度控制单元执行的控制来切换逆变器的控制， 状态信号 ls从国家监督机构收到。

    Motor control device
    4.
    发明授权
    Motor control device 有权

    公开(公告)号：US06580247B2

    公开(公告)日：2003-06-17

    申请号：US10097433

    申请日：2002-03-15

    申请人： Yosuke Nakazawa

    发明人： Yosuke Nakazawa

    IPC分类号： H02P146

    CPC分类号： H02P6/18 ,  H02P6/085 ,  H02P21/18 ,  H02P21/24

    摘要： A pulse synchronized with the period of PWM of inverter and depending on the inferred value of the position of the motor rotor is applied as a PWM pattern to the motor and as a result the difference of magnetic resistance of the motor rotor, which can be inferred by observing the rate of change with time of the d axis current and q axis current on the d and q axis co-ordinates of the current flowing through the motor winding is detected and the position of the motor rotor can be thereby inferred. Thus the position of the motor rotor can be ascertained with high precision by a straightforward device construction without employing a rotor position sensor and reduction in size, reduction in costs and facilitation of maintenance can be achieved.

    REACTIVE POWER COMPENSATOR
    8.
    发明申请
    REACTIVE POWER COMPENSATOR 有权
    无功补偿器

    公开(公告)号：US20140133198A1

    公开(公告)日：2014-05-15

    申请号：US14080456

    申请日：2013-11-14

    申请人： Yushi Koyama ,  Yosuke Nakazawa ,  Hiroshi Mochikawa ,  Atsuhiko Kuzumaki ,  Takeru Murao

    发明人： Yushi Koyama ,  Yosuke Nakazawa ,  Hiroshi Mochikawa ,  Atsuhiko Kuzumaki ,  Takeru Murao

    IPC分类号： H02M7/5387

    CPC分类号： H02J3/1857 ,  H02M2007/4835 ,  Y02E40/26

    摘要： A reactive power compensator according to an embodiment comprises: multilevel inverter circuits respectively constituting each of the three phases; a filter circuit for reducing harmonics connected between the output terminals of each of the multilevel inverter circuits and a power system interconnection terminal; and a control section for causing prescribed three-phase AC voltage to be output by controlling each of said multilevel inverter circuits. Each of the multilevel inverter circuits is constituted by connecting in series one or more single-phase full-bridge single-pulse inverters and is arranged to convert DC voltage to respective positive and negative single-pulse voltages once per cycle of the fundamental wave of the voltage instruction value.

    摘要翻译： 根据实施例的无功功率补偿器包括：分别构成三相中的每一个的多电平逆变器电路; 用于减少连接在所述多电平逆变器电路中的每一个的输出端子与电力系统互连端子之间的谐波的滤波电路; 以及控制部分，用于通过控制每个所述多电平逆变器电路来输出规定的三相AC电压。 每个多电平逆变器电路通过串联连接一个或多个单相全桥单脉冲逆变器构成，并且被布置成将DC电压转换成相应的正和负单脉冲电压，每个循环的基波每次 电压指令值。

    Power conversion apparatus
    9.
    发明授权
    Power conversion apparatus 有权
    电力转换装置

    公开(公告)号：US08531855B2

    公开(公告)日：2013-09-10

    申请号：US13368593

    申请日：2012-02-08

    申请人： Kyungsoo Lee ,  Yosuke Nakazawa

    发明人： Kyungsoo Lee ,  Yosuke Nakazawa

    IPC分类号： H02M7/44

    CPC分类号： H02J3/385 ,  G05F1/67 ,  H02M2001/007 ,  Y02E10/58

    摘要： According to one embodiment, an apparatus includes a controller which outputs a signal for controlling ON and OFF of a switch which changes over connection between a second input terminal and the output end of a coil. The controller includes an MPPT control unit which follows a maximum power point with a period based on a zero-cross detection signal of a system voltage based on an input signal acquired by subtracting a value obtained by multiplying a droop gain simulating drooping characteristics, a control unit which outputs a direction value in such a manner that a difference between a reference output from the MPPT control unit and the input signal becomes zero, and a PWM comparator which outputs a PWM signal based on the direction value and a triangular wave voltage.

    摘要翻译： 根据一个实施例，一种装置包括控制器，其输出用于控制开关的ON和OFF的信号，该开关改变第二输入端子和线圈的输出端之间的连接。 该控制器包括MPPT控制单元，该MPPT控制单元基于通过减去通过乘以下垂增益模拟下垂特性而获得的值而获得的输入信号，在基于系统电压的过零检测信号的周期之后跟随最大功率点，控制 单元，其输出方向值，使得来自MPPT控制单元的基准输出与输入信号之间的差为零; PWM比较器，其基于方向值和三角波电压输出PWM信号。