Method and apparatus for controlling the operation of synchronous motor
    1.
    发明授权
    Method and apparatus for controlling the operation of synchronous motor 失效
    控制同步电机运行的方法和装置

    公开(公告)号:US4012679A

    公开(公告)日:1977-03-15

    申请号:US543306

    申请日:1975-01-23

    IPC分类号: H02P1/52 H02P25/02 H02P1/46

    CPC分类号: H02P1/52 H02P25/024

    摘要: A method and an apparatus for controlling the operation of the synchronous motor are disclosed in which the synchronous motor is started with a starting power supply and operated with a steadying power supply. The starting power supply is adapted to alternately repeat acceleration and deceleration of the synchronous motor in the neighborhood of the frequency thereby to bring the synchronous motor into the point where the synchronous motor is in synchronism with the steadying power supply. The starting power supply comprises a current control circuit and a phase angle control circuit, which circuits control the motor current in such a manner as to prevent the voltage drop due to the synchronous reactance of the motor from exceeding the induced voltage of the motor, while at the same time controlling the power factor angle to be in the range from a lead 90.degree. to the angle corresponding to a maximum output point produced by said motor current.

    摘要翻译: 公开了一种用于控制同步电动机的操作的方法和装置,其中同步电动机由启动电源启动并以稳定电源运行。 起动电源适于在频率附近交替地重复同步电动机的加速和减速,从而使同步电动机进入同步电动机与稳定电源同步的点。 启动电源包括电流控制电路和相位角控制电路,其电路控制电动机电流,以防止由于电动机的同步电抗引起的电压下降超过电动机的感应电压,同时 同时将功率因数角控制在从导线90°到对应于由所述电动机电流产生的最大输出点的角度的范围内。

    Method and apparatus for detecting shortcircuit in arm of GTO inverter
    2.
    发明授权
    Method and apparatus for detecting shortcircuit in arm of GTO inverter 失效
    GTO逆变器臂的短路检测方法及装置

    公开(公告)号:US4384248A

    公开(公告)日:1983-05-17

    申请号:US160174

    申请日:1980-06-17

    IPC分类号: G01R31/02 H02H7/122 H02H3/28

    CPC分类号: G01R31/025 H02H7/1225

    摘要: Shortcircuit in an arm including a series connection of GTO's and reactors of an inverter is detected by sensing a voltage across the reactor. In one method, the shortcircuit in the arm is detected when voltages are coincidently applied to a P-line arm reactor and an N-line arm reactor for a predetermined time period. In another method, it is detected when an integrated value of a voltage across at least one of the reactors exceeds a predetermined level.

    摘要翻译: 通过感测反应堆两端的电压来检测包括GTO和逆变器的反应器的串联连接的臂中的短路。 在一种方法中,当预定时间段内的电压一致地施加到P线臂式电抗器和N型臂式电抗器时,检测到臂中的短路。 在另一种方法中,当跨过至少一个电抗器的电压的积分值超过预定电平时检测。

    Gate circuit for gate turn-off thyristor
    4.
    发明授权
    Gate circuit for gate turn-off thyristor 失效
    栅极电路用于栅极截止晶闸管

    公开(公告)号:US4456836A

    公开(公告)日:1984-06-26

    申请号:US335547

    申请日:1981-12-29

    IPC分类号: H03K17/732 H03K17/72

    CPC分类号: H03K17/732

    摘要: A gate circuit for gate turn-off thyristors is disclosed which includes a turn-on circuit formed of a series combination of a turn-on power source and an NPN transistor and a turn-off circuit formed of a series combination of a turn-off power source and a thyristor, and in which a PNP transistor is provided between the anode and gate of the thyristor in such a manner that the base of the NPN transistor and the base of the PNP transistor are connected to each other and a junction of these bases receives a control signal for turning on or off a gate turn-off thyristor.

    摘要翻译: 公开了一种用于栅极截止晶闸管的栅极电路,其包括由导通电源和NPN晶体管的串联组合形成的导通电路,以及由关断的串联组合形成的截止电路 电源和晶闸管,并且其中PNP晶体管以这样的方式设置在晶闸管的阳极和栅极之间,使得NPN晶体管的基极和PNP晶体管的基极彼此连接,并且这些 基极接收用于接通或关闭栅极截止晶闸管的控制信号。

    Control circuit for a semiconductor element with a control electrode
    5.
    发明授权
    Control circuit for a semiconductor element with a control electrode 失效
    具有控制电极的半导体元件的控制电路

    公开(公告)号:US4568838A

    公开(公告)日:1986-02-04

    申请号:US750229

    申请日:1985-06-28

    CPC分类号: H03K17/16

    摘要: A control circuit for a semiconductor element with a control electrode includes a signal transmission circuit, in which two switching elements made conductive when a control signal is supplied from a control signal source to the switching elements through a signal insulating element, are provided so that the control signal is transferred to a turn-on circuit for the semiconductor element only when the switching elements are simultaneously made conductive.

    摘要翻译: 用于具有控制电极的半导体元件的控制电路包括信号传输电路,其中当控制信号通过信号绝缘元件从控制信号源提供给开关元件时,两个开关元件导通,这样, 只有当开关元件同时导通时,才将控制信号传送到半导体元件的导通电路。

    Control device for a pulse-width modulated inverter
    6.
    发明授权
    Control device for a pulse-width modulated inverter 失效
    用于脉宽调制逆变器的控制装置

    公开(公告)号:US4179727A

    公开(公告)日:1979-12-18

    申请号:US852980

    申请日:1977-11-18

    IPC分类号: H02M7/48 H02M7/527 H02M7/515

    CPC分类号: H02M7/527

    摘要: A control device for a pulse-width modulated inverter comprises means for generating as a carrier wave a triangular wave synchronizing with an AC output from the inverter, means for generating as a modulating wave a train of rectangular wave pulses which synchronize with the triangular wave and have a width corresponding to a section effective for a modulating operation and a predetermined amplitude, voltage level setting means for setting the amplitude of the train of rectangular wave pulses, and means for modulating the triangular wave with the train of rectangular wave pulses and generating a control pulse for the AC output. The rectangular wave pulses are so set as to have a modulating level of zero in the proximity of a point corresponding to the zero point of the AC output of each phase thereby to remove a frequency divider for adjusting input frequencies of the triangular wave generating means and the modulating wave generating means and to prevent a useless modulating operation leading only to an increase in the number of commutations of the inverter.

    摘要翻译: 用于脉冲宽度调制的反相器的控制装置包括用于产生与来自反相器的AC输出同步的三角波作为载波的装置,用于产生与三角波同步的一串矩形波脉冲作为调制波; 具有对应于对于调制操作有效的部分的宽度和用于设定矩形波脉冲列的振幅的预定幅度的电压电平设定装置,以及用矩阵波脉冲串调制三角波的装置, AC输出的控制脉冲。 矩形波脉冲被设置为在与每相的AC输出的零点相对应的点附近具有零调制电平,从而去除用于调整三角波产生装置的输入频率的分频器, 调制波产生装置并且防止无用的调制操作仅导致逆变器的换向数量的增加。

    Power conversion apparatus
    7.
    发明授权
    Power conversion apparatus 失效
    电力转换装置

    公开(公告)号:US4231083A

    公开(公告)日:1980-10-28

    申请号:US931008

    申请日:1978-08-04

    摘要: When a power conversion apparatus such as inverter or chopper comprises gate turn-off thyristors (GTO's), current limiting reactors are connected to cathodes of the GTO's and opposite ends of each of the reactors are connected to positive and negative terminals, respectively, of a gate power supply which supplies a turn-on current and a turn-off current to the respective GTO. With this arrangement, an energy stored in each of the reactors at the turn-off of the GTO is absorbed by the gate power supply.

    摘要翻译: 当诸如逆变器或斩波器的功率转换装置包括栅极截止晶闸管(GTO)时,限流电抗器连接到GTO的阴极,并且每个反应器的相对端分别连接到正极和负极端子 栅极电源,其向相应的GTO提供导通电流和关断电流。 通过这种布置,在GTO关断时存储在每个电抗器中的能量被栅极电源吸收。

    BATTERY PACK
    8.
    发明申请
    BATTERY PACK 有权
    电池组

    公开(公告)号:US20070128513A1

    公开(公告)日:2007-06-07

    申请号:US11566014

    申请日:2006-12-01

    IPC分类号: H01M2/02 H01M2/08

    摘要: A battery pack is provided. The battery pack includes: a generator device having a battery element disposed on a flexible covering material folded to cover the battery element, wherein three sides of the flexible covering material around the battery element are sealed; a rigid covering material for covering the generator device, having an opening and being bonded to the flexible covering material of the generator device; and a cover fitted into the opening of the rigid covering material, wherein the rigid covering material has a three-layer structure having an outer packaging layer, a metal layer, and a heat-bonding layer which are stacked on one another, and the heat-bonding layer is one selected from an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ethyl acrylate copolymer, a methyl acrylate copolymer, a methacrylic acid copolymer, a methyl methacrylate copolymer, polyacrylonitrile, an ethylene vinyl alcohol resin, a polyamide resin, a polyester resin, acid-modified polypropylene, or an ionomer.

    摘要翻译: 提供电池组。 电池组包括:发电机装置,其具有设置在折叠成覆盖电池元件的柔性覆盖材料上的电池元件,其中围绕电池元件的柔性覆盖材料的三个侧面被密封; 用于覆盖发电机装置的刚性覆盖材料,具有开口并且被结合到发电机装置的柔性覆盖材料上; 以及装配到刚性覆盖材料的开口中的盖,其中刚性覆盖材料具有三层结构,其具有彼此堆叠的外包装层,金属层和热粘合层,并且热量 键合层是选自乙烯 - 乙酸乙烯酯共聚物,乙烯 - 丙烯酸共聚物,丙烯酸乙酯共聚物,丙烯酸甲酯共​​聚物,甲基丙烯酸共聚物,甲基丙烯酸甲酯共​​聚物,聚丙烯腈,乙烯 - 乙烯醇树脂, 聚酰胺树脂,聚酯树脂,酸改性聚丙烯或离聚物。

    Metal vapor discharge lamp with radioactively impregnated ceramic
material body
    9.
    发明授权
    Metal vapor discharge lamp with radioactively impregnated ceramic material body 失效
    金属蒸汽放电灯带放射性浸渍陶瓷材料体

    公开(公告)号:US4827176A

    公开(公告)日:1989-05-02

    申请号:US135077

    申请日:1987-12-18

    CPC分类号: H01J61/548

    摘要: A metal vapor discharge lamp. The metal vapor discharge lamp includes an enclosed discharge tube having a pair of main electrodes mounted at spaced apart locations therein, the discharge tube including a fill of at least a metal vapor and a starting gas, a radiation source including radioactively impregnated ceramic material having a vitrified radioactive outer protection portion and an outer bulb for enclosing the discharge tube and a circuit for electrically generating an arc between the main electrodes.

    摘要翻译: 金属蒸汽放电灯。 金属蒸汽放电灯包括封闭的放电管,其具有安装在其间隔开的位置的一对主电极,放电管包括至少金属蒸气和起始气体的填充物,辐射源包括放射性浸渍的陶瓷材料,其具有 玻璃化放射性外保护部分和用于封闭放电管的外灯泡和用于在主电极之间产生电弧的电路。