POWER CONVERSION SYSTEM AND METHOD
    81.
    发明申请
    POWER CONVERSION SYSTEM AND METHOD 有权
    电力转换系统和方法

    公开(公告)号:US20100176755A1

    公开(公告)日:2010-07-15

    申请号:US12354040

    申请日:2009-01-15

    CPC classification number: H02P5/74 H02M5/14 H02P27/06 H02P2201/13

    Abstract: Power conversion systems and methods are provided for driving a plurality of motor loads, in which an autotransformer receives AC input currents and provides a plurality of multiphase outputs at a non-zero phase angle relative to one another, and the individual multiphase outputs are provided to corresponding motor drives with rectifiers to convert the multiphase outputs to DC electrical power, and inverters to convert the DC power to AC to drive corresponding motor loads.

    Abstract translation: 提供了用于驱动多个电动机负载的电力转换系统和方法,其中自耦变压器接收AC输入电流并且相对于彼此提供非零相位角的多个多相输出,并且将各个多相输出提供给 具有整流器的相应电机驱动器将多相输出转换为直流电力,以及逆变器将直流电力转换为交流电,以驱动相应的电机负载。

    Twelve-pulse HVDC Transmission
    82.
    发明申请
    Twelve-pulse HVDC Transmission 有权
    十二脉冲HVDC传输

    公开(公告)号:US20090225570A1

    公开(公告)日:2009-09-10

    申请号:US11908191

    申请日:2006-03-06

    CPC classification number: H02J3/36 H02M5/45 H02P2201/13 Y02E60/60

    Abstract: A device for transmitting electric power between alternating voltage networks includes converters interconnected by direct current lines and provided each with several six-pulse conversion bridges. The six-pulse conversion bridges of one same converter are capable of being connected to an alternating voltage network associated with the converters via inductances differently phase-shifted. A control unit is provided to energize the valves of the six-pulse conversion bridges. The device is more economical and the converters are interconnected by a plurality of direct current circuits, each direct current circuit being galvanically separated from at least an alternating voltage network.

    Abstract translation: 用于在交流电压网络之间传输电力的装置包括通过直流线互连的转换器,并且每个转换器提供有几个六脉冲转换桥。 一个相同转换器的六脉冲转换桥能够通过不同相位的电感连接到与转换器相关联的交流电压网络。 提供一个控制单元来激励六脉冲转换桥的阀。 该装置更经济,并且转换器通过多个直流电路互连,每个直流电路与至少一个交流电压网电流隔离。

    Flux control for induction motor drive using load commutated inverter
circuit
    83.
    发明授权
    Flux control for induction motor drive using load commutated inverter circuit 失效
    感应电动机驱动使用负载换向逆变电路的磁通控制

    公开(公告)号:US4607206A

    公开(公告)日:1986-08-19

    申请号:US705964

    申请日:1985-02-26

    Abstract: A system for controlling the operation of an alternating current induction motor having windings supplied by electrical power from the polyphase alternating current source includes a load commutated inverter circuit which is connected between the power source and the induction motor for furnishing electrical power to the motor. Controllers responsive to a command signal and a feedback signal indicative of motor operating parameters control the operation of said load commutated inverter circuit. There is further provided a fixed capacitor circuit connected between the windings of the motor for supplying reactive volt amperes (VARs) to said load commutated inverter circuit and said motor. Finally, there is provided a variable VAR generator connected between the motor windings for supplying VARs to said load commutated inverter circuit and said motor in response to the output of a third feedback control path which is also responsive to a command signal and prescribed operating parameter(s) of said load and/or said commutated inverter.

    Controlled rotor rectifier arrangement for a slip-recovery drive
    84.
    发明授权
    Controlled rotor rectifier arrangement for a slip-recovery drive 失效
    用于滑动回收驱动器的可控转子整流器装置

    公开(公告)号:US4385267A

    公开(公告)日:1983-05-24

    申请号:US229412

    申请日:1981-01-29

    Abstract: SCR devices replace the usual diodes of the rectifier bridge section of a wound-rotor slip-recovery system motor drive. By controlling the retardation angle of the SCR devices while controlling the line bridge for acceleration from zero speed to normal speed, the rating of the overall system is reduced. By removing the gating signal of the SCR's while operating at a retardation angle in the range between zero and 90.degree., operation is immediately brought to a stop in case of an emergency.

    Abstract translation: SCR器件代替绕线转子滑移回收系统电机驱动器的整流桥部分的通常二极管。 通过控制SCR装置的延迟角度,同时控制线路桥从零速度加速到正常速度,整个系统的额定值降低。 通过在零度和90度之间的相位角操作时,通过去除SCR的门控信号,在紧急情况下立即停止操作。

    Apparatus and system for power conversion
    86.
    发明公开
    Apparatus and system for power conversion 审中-公开
    用于电力转换的设备和系统

    公开(公告)号:EP2416479A3

    公开(公告)日:2017-08-09

    申请号:EP11173778.9

    申请日:2011-07-13

    CPC classification number: H02J1/102 H02P2201/13 Y10T307/582 Y10T307/707

    Abstract: An apparatus includes a DC-link (26), a voltage converter (14), a bus voltage controller (36), and a supervisory controller (12). The voltage converter (14) is configured to convert a first DC voltage into a second DC voltage based on a command signal and based on an adjustment signal and to supply the second DC voltage to the DC-link (26). The bus voltage controller (36) is configured to iterate calculation of the adjustment signal to communicate each iterated calculation of the adjustment signal to the voltage converter (14). The supervisory controller (12) is configured to iterate calculation of the command signal and to communicate each iterated calculation of the command signal to the voltage converter (14) and to the bus voltage controller (36). A frequency of the bus voltage controller (36) to communicate each iterated calculation of the adjustment signal is higher than a frequency of the supervisory controller (12) to communicate each iterated calculation of the command signal.

    Abstract translation: 一种装置包括DC链路(26),电压转换器(14),总线电压控制器(36)和监控器(12)。 电压转换器(14)被配置为基于命令信号并且基于调节信号将第一DC电压转换成第二DC电压并且将DC电压供应到DC链路(26)。 总线电压控制器(36)被配置为迭代计算调整信号以将调整信号的每次迭代计算传达给电压转换器(14)。 监控器(12)被配置为迭代计算命令信号并将命令信号的每次迭代计算传送到电压转换器(14)和总线电压控制器(36)。 总线电压控制器(36)传送调节信号的每次迭代计算的频率高于监控控制器(12)传送命令信号的每次迭代计算的频率。

    Method of operating AC drive with parallel connected DC link power converters
    90.
    发明公开
    Method of operating AC drive with parallel connected DC link power converters 失效
    BetriebsverfahrenfürWechselstromantrieb mit parallel geschaltetem Gleichstromzwischenkreiskonverter。

    公开(公告)号:EP0326332A2

    公开(公告)日:1989-08-02

    申请号:EP89300662.7

    申请日:1989-01-25

    CPC classification number: H02M5/4505 H02P2201/13 Y10T307/707

    Abstract: A method of operating an ac drive having a plurality of parallel connected polyphase dc link power converters, in the load commutated mode, with essentially constant dc link currents and with the alternating output currents contributed by the respective power converters phase shifted by an amount which reduces selected harmonics in the composite output current.

    Abstract translation: 一种在负载换向模式下操作具有多个并联多相直流链路功率转换器的交流驱动器的方法,具有基本上恒定的直流链路电流以及由相应的功率转换器所贡献的交流输出电流,相移量减少了一个量 在复合输出电流中选择谐波。

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