利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.035 秒)

    Voltage fluctuation compensating apparatus
    1.
    发明授权
    Voltage fluctuation compensating apparatus 有权
    电压波动补偿装置

    公开(公告)号：US06812592B2

    公开(公告)日：2004-11-02

    申请号：US10109045

    申请日：2002-03-29

    申请人： Akihiko Iwata ,  Akihiro Suzuki ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Toshiyuki Kikunaga ,  Mitsugu Takahashi

    发明人： Akihiko Iwata ,  Akihiro Suzuki ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Toshiyuki Kikunaga ,  Mitsugu Takahashi

    IPC分类号： H02J312

    CPC分类号： H02M1/15 ,  H02J3/1807 ,  H02M1/12 ,  H02M5/2576 ,  H02M2001/0093 ,  Y02E40/30 ,  Y10T307/516 ,  Y10T307/527

    摘要： Voltage compensating circuits are connected serially to a power system, including capacitors each having different charging voltages (in relationship of approximately 2k (K=0, 1, 2, . . . ) times the smallest charging voltage value). The voltage compensating circuits convert DC voltages in the capacitors into AC voltages and output the AC voltages, respectively. The voltages of the capacitors are detected as detected values V1 to V3. The detected values V1 to V3 are used as bit signals for a reference value to check a voltage dip amount of the power system with the reference value and to convert the voltage dip amount into a binary signal. A combination is selected from the voltage compensating circuits in accordance with the binary signal so that the sum of output voltages of the selected voltage compensating circuits compensates the voltage dip of the power system.

    摘要翻译： 电压补偿电路串联连接到电力系统，包括各自具有不同充电电压的电容（约2kK（K = 0,1,2，...）与最小充电电压值的关系）。 电压补偿电路将电容器中的直流电压转换成交流电压，分别输出交流电压。 电容器的电压被检测为检测值V1〜V3。 检测值V1〜V3用作基准值的位信号，以基准值检查电力系统的电压倾斜量，并将电压倾斜量转换为二进制信号。 根据二进制信号从电压补偿电路中选择组合，使得所选择的电压补偿电路的输出电压之和补偿电力系统的电压下降。

    Voltage fluctuation compensating apparatus
    2.
    再颁专利
    Voltage fluctuation compensating apparatus 有权
    电压波动补偿装置

    公开(公告)号：USRE40528E1

    公开(公告)日：2008-10-07

    申请号：US11590899

    申请日：2006-11-01

    申请人： Akihiko Iwata ,  Akihiro Suzuki ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Toshiyuki Kikunaga ,  Mitsugu Takahashi

    发明人： Akihiko Iwata ,  Akihiro Suzuki ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Toshiyuki Kikunaga ,  Mitsugu Takahashi

    IPC分类号： H02J3/12 ,  G05F1/70

    CPC分类号： H02M1/15 ,  H02J3/1807 ,  H02M1/12 ,  H02M5/2576 ,  H02M2001/0093 ,  Y02E40/30 ,  Y10T307/516 ,  Y10T307/527

    摘要： Voltage compensating circuits are connected serially to a power system, including capacitors each having different charging voltages (in relationship of approximately 2k (K=0, 1, 2, . . . ) times the smallest charging voltage value). The voltage compensating circuits convert DC voltages in the capacitors into AC voltages and output the AC voltages, respectively. The voltages of the capacitors are detected as detected values V1 to V3. The detected values V1 to V3 are used as bit signals for a reference value to check a voltage dip amount of the power system with the reference value and to convert the voltage dip amount into a binary signal. A combination is selected from the voltage compensating circuits in accordance with the binary signal so that the sum of output voltages of the selected voltage compensating circuits compensates the voltage dip of the power system.

    摘要翻译： 电压补偿电路串联连接到电力系统，包括电容器，每个电容器具有不同的充电电压（约2KΩ的关系（K = 0,1,2，...）倍的最小充电电压 值）。 电压补偿电路将电容器中的直流电压转换成交流电压，分别输出交流电压。 电容器的电压被检测为检测值V 1至V 3。检测值V 1至V 3用作参考值的位信号，以用参考值检查电力系统的电压下降量，并转换 将电压倾入量转换为二进制信号。 根据二进制信号从电压补偿电路中选择组合，使得所选择的电压补偿电路的输出电压之和补偿电力系统的电压下降。

    Switchgear
    8.
    发明授权
    Switchgear 有权
    开关柜

    公开(公告)号：US06295192B1

    公开(公告)日：2001-09-25

    申请号：US09414504

    申请日：1999-10-08

    申请人： Yukimori Kishida ,  Kenichi Koyama ,  Hiroyuki Sasao ,  Kazuhiko Nishimiya ,  Yuichi Yamaji ,  Toshimasa Maruyama

    发明人： Yukimori Kishida ,  Kenichi Koyama ,  Hiroyuki Sasao ,  Kazuhiko Nishimiya ,  Yuichi Yamaji ,  Toshimasa Maruyama

    IPC分类号： H01H300

    CPC分类号： H01H33/285 ,  H01H5/30 ,  H01H33/666

    摘要： In a switchgear, by using a spring with a varying spring constant from closing to electrode opening as a loading spring, spring load in the opened electrode state is made smaller than a spring load in the closed electrode state to decrease the energy required from electrode closing up to electrode opening. Moreover, by using a spring in which a load in the opposite direction to a load in the closed electrode state works in the opened electrode state, the opened electrode state can be held securely.

    摘要翻译： 在开关装置中，通过使用从闭合到电极开口的弹簧常数不同的弹簧作为装载弹簧，使开放电极状态下的弹簧载荷小于闭合电极状态下的弹簧载荷，从而减小从电极闭合所需的能量 直到电极开口。 此外，通过使用其中与闭合电极状态的负载相反方向的负载在开放电极状态下工作的弹簧，可以牢固地保持打开的电极状态。

    Electric power supply system for load
    9.
    发明授权
    Electric power supply system for load 失效
    负载供电系统

    公开(公告)号：US6051893A

    公开(公告)日：2000-04-18

    申请号：US181556

    申请日：1998-10-29

    申请人： Hiroshi Yamamoto ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Yukimori Kishida ,  Toshimasa Maruyama ,  Masakazu Fukada

    发明人： Hiroshi Yamamoto ,  Hiroyuki Sasao ,  Kenichi Koyama ,  Yukimori Kishida ,  Toshimasa Maruyama ,  Masakazu Fukada

    IPC分类号： H02J9/06 ,  H02J3/00 ,  H02J9/04

    CPC分类号： H02J9/06 ,  Y02P80/11 ,  Y10T307/50 ,  Y10T307/615 ,  Y10T307/735

    摘要： A fast changeover from one power system to another in the event of an irregularity in the power source system substantially reduces operating costs by minimizing a power loss in switches during conduction, dispenses with a cooling device for cooling a thyristor switch, and implements the thyristor switch in a compact and low-cost design. The power supply system for a load includes one switching apparatus for connecting a load to one power source system, and another switching apparatus for connecting the load to another power source system. Each of the switching apparatus includes a pair of thyristors connected in anti-parallel and a mechanical switch connected in parallel with the thyristor pair. The thyristor pairs and the mechanical switches are controlled so that the mechanical switches conduct a load current when the load is supplied with power from the one power source system in a steady power supply state. The thyristor switches conduct the load current during a power source changeover time within which the load is disconnected from one power source system and connected to the other power source system, and do not conduct the load current during the steady power supply state.

    摘要翻译： 在电源系统不规则的情况下，从一个电力系统到另一个电力系统的快速切换通过在传导期间最小化开关中的功率损耗来大大降低运行成本，省略用于冷却晶闸管开关的冷却装置，并且实施晶闸管开关 在一个紧凑和低成本的设计。 用于负载的电源系统包括用于将负载连接到一个电源系统的一个开关装置和用于将负载连接到另一个电源系统的另一个开关装置。 开关装置中的每一个包括以并联方式连接的一对晶闸管和与晶闸管对并联连接的机械开关。 控制晶闸管对和机械开关，使得当负载在稳定供电状态下从一个电源系统供电时，机械开关传导负载电流。 晶闸管开关在负载从一个电源系统断开并连接到另一个电源系统的电源切换时间内导通负载电流，并且在稳定供电状态期间不会导通负载电流。