Slot wedges for electrical machines
    11.
    发明授权
    Slot wedges for electrical machines 有权
    电机槽槽楔

    公开(公告)号:US08125113B2

    公开(公告)日:2012-02-28

    申请号:US12570776

    申请日:2009-09-30

    CPC classification number: H02K3/487 Y10T29/49009

    Abstract: A wound core assembly for an electrical machine comprising a stack of laminations defining a core having a plurality of poles, the wound core assembly further comprising at least one slot wedge, wherein the slot wedge comprises a first portion arranged between adjacent poles and at least one second portion protruding from the first portion and abutting an end face of the core in the region of at least one of the poles. The at least one second portion may apply axial pressure to the end face to reduce the tendency of the laminations to splay axially outwards.

    Abstract translation: 一种用于电机的缠绕芯组件,其包括限定具有多个磁极的磁芯的叠片堆叠,所述卷绕芯组件还包括至少一个槽楔,其中所述槽楔包括布置在相邻磁极之间的第一部分和至少一个 第二部分从第一部分突出并抵靠在至少一个极的区域中的芯的端面。 至少一个第二部分可以向端面施加轴向压力以减小叠片向外向外张开的倾向。

    Slot Wedges for Electrical Machines
    12.
    发明申请
    Slot Wedges for Electrical Machines 有权
    电机槽楔

    公开(公告)号:US20100079028A1

    公开(公告)日:2010-04-01

    申请号:US12570776

    申请日:2009-09-30

    CPC classification number: H02K3/487 Y10T29/49009

    Abstract: A wound core assembly for an electrical machine comprising a stack of laminations defining a core having a plurality of poles, the wound core assembly further comprising at least one slot wedge, wherein the slot wedge comprises a first portion arranged between adjacent poles and at least one second portion protruding from the first portion and abutting an end face of the core in the region of at least one of the poles. The at least one second portion may apply axial pressure to the end face to reduce the tendency of the laminations to splay axially outwards.

    Abstract translation: 一种用于电机的缠绕芯组件,其包括限定具有多个磁极的磁芯的叠片堆叠,所述卷绕芯组件还包括至少一个槽楔,其中所述槽楔包括布置在相邻磁极之间的第一部分和至少一个 第二部分从第一部分突出并抵靠在至少一个极的区域中的芯的端面。 至少一个第二部分可以向端面施加轴向压力以减小叠片向外向外张开的倾向。

    Excitation of switched reluctance motors
    13.
    发明授权
    Excitation of switched reluctance motors 有权
    开关磁阻电机的励磁

    公开(公告)号:US07208906B2

    公开(公告)日:2007-04-24

    申请号:US10837140

    申请日:2004-04-30

    CPC classification number: H02P6/22 H02P25/098

    Abstract: A switched reluctance drive is supplied from a power source. The phases of the machine are controlled by a current controller which uses an excitation strategy to minimize the supply current drawn for a particular output. The strategy alternates the excitation between two phases for a given time until the rotor moves to a desired position. A method of starting a switched reluctance motor having a stator with at least two phases, a moveable part, and a position transducer includes determining from transducer output a plurality of phases that are available to produce force in a desired direction, energizing a first phase of the available phases for a predetermined time period that is independent of the transducer output, and energizing a second phase of the available phases after energization of the first phase is initiated.

    Abstract translation: 开关磁阻驱动器由电源供电。 机器的相位由电流控制器控制,电流控制器使用激励策略来最小化为特定输出提供的电源电流。 该策略交替给定时间的两相之间的激励,直到转子移动到期望的位置。 一种启动具有至少两相的定子的开关磁阻电动机的方法,可移动部件和位置传感器包括从换能器输出确定可在期望方向上产生力的多个相,激励第一阶段 启动独立于换能器输出的预定时间段的可用相位,以及在第一阶段通电之后激励可用相的第二阶段。

    Starting of switched reluctance generators
    14.
    发明授权
    Starting of switched reluctance generators 有权
    开关磁阻发电机的启动

    公开(公告)号:US06906490B2

    公开(公告)日:2005-06-14

    申请号:US10614973

    申请日:2003-07-08

    CPC classification number: H02K19/20 H02K19/103 H02P9/40 H02P2101/45

    Abstract: A switched reluctance drive is operated as a generator on a high voltage supply which has no long-term energy storage capability. A low voltage supply is used to start the generator through the use of a dedicated priming winding, which provides sufficient energy to allow the generator to build up charge in DC link capacitor(s). Once sufficient charge has built up, the priming winding is de-energized and the generator continues in a steady-state operation.

    Abstract translation: 开关磁阻驱动器作为不具有长期能量存储能力的高压电源上的发电机运行。 低压电源用于通过使用专用的起动绕组来启动发电机,该励磁绕组提供足够的能量以允许发电机在直流链路电容器中建立电荷。 一旦建立了足够的充电,启动绕组就断电,并且发电机继续进行稳态运行。

    Current limiter
    15.
    发明授权
    Current limiter 失效
    限流器

    公开(公告)号:US5995392A

    公开(公告)日:1999-11-30

    申请号:US986053

    申请日:1997-12-05

    CPC classification number: H02H9/001 H02H9/026 Y10S323/908

    Abstract: A current limiter for a rectifier circuit includes a fixed resistor 50 and a positive temperature coefficient (PTC) resistor 100 connected in series across a control switch 70. The control switch is connected between a rectifier output and a smoothing capacitor 20. If the switch fails to operate, the PTC resistor heats up, increasing its resistance in the presence of an abnormal current. The increased resistance will limit the current supplied to the rectifier output terminals 40.

    Abstract translation: 整流电路的限流器包括固定电阻器50和串联连接在控制开关70上的正温度系数(PTC)电阻器100.控制开关连接在整流器输出端与平滑电容器20之间。如果开关失效 为了操作,PTC电阻器加热,在存在异常电流的情况下增加其电阻。 增加的电阻将限制提供给整流器输出端子40的电流。

    Control of a switched reluctance drive
    16.
    发明授权
    Control of a switched reluctance drive 失效
    开关磁阻驱动器的控制

    公开(公告)号:US06972533B2

    公开(公告)日:2005-12-06

    申请号:US10623207

    申请日:2003-07-18

    CPC classification number: H02P25/0925

    Abstract: A switched reluctance drive, operating either as a motor or a generator, is controlled in a stable manner in the continuous current mode in the presence of supply voltage or electrical load variation. The use of a current control parameter Ix in addition to the conventional on- and off-angles θon, θoff gives the ability to operate smoothly in the continuous current mode and to transition smoothly between operating modes. Once the phase current reaches a pre-determined level Ix, the phase winding may be placed in a freewheel state, thereby controlling the standing current in the phase winding and/or the output voltage.

    Abstract translation: 在电源电压或电负载变化的情况下,以连续电流模式稳定地控制作为电动机或发电机运行的开关磁阻驱动器。 使用电流控制参数I ,除了在上的传统开/关角θθ之外,还提供了 在连续电流模式下平稳运行,并在工作模式之间平稳过渡。 一旦相电流达到预定电平I ,相绕组可以置于续流状态,从而控制相绕组中的驻极电流和/或输出电压。

    Transducer offset compensation
    18.
    发明授权
    Transducer offset compensation 失效
    传感器偏移补偿

    公开(公告)号:US06400131B1

    公开(公告)日:2002-06-04

    申请号:US09074854

    申请日:1998-05-08

    CPC classification number: H02P25/0925 G01R15/202 G01R35/005

    Abstract: A transducer circuit, particularly for monitoring current, compensates for offset in the transducer output by sampling the output periodically at a moment at which the output is known, and storing the sampled value as an offset. The offset is compared with subsequent outputs from the transducer to provide a difference signal which is the compensated output of the transducer. When the calibrated output of the transducer is non-zero at the said moment, the non-zero value is added as a reference to the compensated value to correct the magnitude of the transducer output.

    Abstract translation: 特别是用于监测电流的换能器电路通过在已知输出的时刻周期性地对输出进行采样来补偿换能器输出中的偏移,并将采样值存储为偏移。 将偏移与来自换能器的随后输出进行比较,以提供差分信号,该差信号是换能器的补偿输出。 当传感器的校准输出在所述时刻为非零时,非零值作为补偿值的参考值加上以校正换能器输出的大小。

    Power supply circuit for a control circuit
    19.
    发明授权
    Power supply circuit for a control circuit 失效
    用于控制电路的电源电路

    公开(公告)号:US5982649A

    公开(公告)日:1999-11-09

    申请号:US21344

    申请日:1998-02-10

    CPC classification number: H02M3/155 H02P29/60 H02M2001/0006 H02M2001/009

    Abstract: A power supply circuit is provided for generating a low voltage for powering a control circuit. The power supply circuit is connected to a voltage source having a high voltage relative to the output voltage of the power supply circuit. The power supply circuit includes a power supply capacitor and a charging capacitor connected to the power supply capacitor which charges the power supply capacitor when the power supply circuit is connected to the high voltage source. The power supply also includes an inductor connected to the power supply capacitor which charges the power supply capacitor by resonant action when the power supply circuit is disconnected from the voltage source, so that the power supply capacitor is continuously charged. A pair of diodes are also provided. The first diode is connected between the charging capacitor and the power supply capacitor. The second diode is connected in series with the inductor. The power supply circuit further includes a zener diode connected to the power supply capacitor for regulating the voltage across the power supply capacitor.

    Abstract translation: 提供电源电路用于产生用于为控制电路供电的低电压。 电源电路被连接到具有相对于电源电路的输出电压的高电压的电压源。 电源电路包括电源电容器和连接到电源电容器的充电电容器,当电源电路连接到高电压源时,对电源电容器充电。 电源还包括连接到电源电容器的电感器,其在电源电路与电压源断开时通过谐振动作对电源电容器充电,使得电源电容器连续充电。 还提供了一对二极管。 第一个二极管连接在充电电容器和电源电容器之间。 第二个二极管与电感串联。 电源电路还包括连接到电源电容器的齐纳二极管,用于调节电源电容器两端的电压。

    Control of a switched reluctance machine
    20.
    发明授权
    Control of a switched reluctance machine 失效
    开关磁阻电机的控制

    公开(公告)号:US5894210A

    公开(公告)日:1999-04-13

    申请号:US684256

    申请日:1996-07-19

    CPC classification number: H02P6/16 H02P25/0925

    Abstract: A normalization circuit for a phase energization controller receives a rotor position value from a position encoder, and the normalization circuit obtains a normalized rotor position for each phase of a switched reluctance machine. Accordingly, the normalization circuit simplifies the detection of commutation positions for all the machine phases by reducing the commutation position determination to that of a single phase. Also, an initialization circuit for the phase energization controller energizes one or more phases of the switched reluctance motor to set the rotor of the switched reluctance motor to a preferred position to determine an offset value.

    Abstract translation: 相通电控制器的归一化电路从位置编码器接收转子位置值,并且归一化电路获得开关磁阻电机的各相的归一化转子位置。 因此,归一化电路通过将换向位置确定减少到单相的换向位置来简化对所有机器相位的换向位置的检测。 此外,相通电控制器的初始化电路为开关磁阻电动机的一相或多相激励,将开关磁阻电机的转子设定在优选位置,以确定偏移值。

Patent Agency Ranking