METHOD OF CONTROLLING AN ELECTRICAL MACHINE
    221.
    发明申请
    METHOD OF CONTROLLING AN ELECTRICAL MACHINE 有权
    控制电机的方法

    公开(公告)号:US20150061556A1

    公开(公告)日:2015-03-05

    申请号:US14014710

    申请日:2013-08-30

    Inventor: Paul S. Mullin

    CPC classification number: H02P6/20 H02P6/181

    Abstract: A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal.

    Abstract translation: 一种控制电机的方法。 电机包括具有芯和多个绕组的定子,以及与定子相邻设置的与定子相互作用的转子。 该方法包括配置具有振幅和频率的三相交流(AC)电压启动信号的振幅值和频率值,向多个绕组提供三相交流(AC)电压启动信号,以及 根据由频率值定义的预编程频率斜坡功能,改变三相交流电压启动信号的频率。 该方法还包括在频率斜坡功能完成之后停止三相交流电压启动信号,并且在停止三相AC电压启动信号之后切换到反电动势(BEMF)控制模式。

    ELECTRIC MACHINE AND ASSOCIATED METHOD
    222.
    发明申请
    ELECTRIC MACHINE AND ASSOCIATED METHOD 有权
    电机及相关方法

    公开(公告)号:US20150061468A1

    公开(公告)日:2015-03-05

    申请号:US14013628

    申请日:2013-08-29

    Abstract: A method for fabricating a rotor for an electric motor is provided. The method includes the steps of fabricating a first set of rotor parts for use in a motor having a first frame size and fabricating a second set of rotor parts for use in a motor having a second frame size. The second frame size is substantially different from the first frame size. The method further includes the steps of fabricating a third set of rotor parts for use in the motor having the first frame size and for use in the motor having the second frame size, ascertaining the desired motor frame size, and selecting one of the first set of rotor parts and the second set of rotor parts in accordance with desired motor frame size. The method also includes the steps of selecting the third set of rotor parts and assembling a rotor with one of the first set of rotor parts and the second set of rotor parts and with the third set of rotor parts, such that a rotor for use with the desired motor frame size is substantially provided.

    Abstract translation: 提供了一种用于制造用于电动机的转子的方法。 该方法包括以下步骤:制造用于具有第一框架尺寸的电动机中的第一组转子部件,并且制造用于具有第二框架尺寸的电动机的第二组转子部件。 第二框架尺寸与第一框架尺寸基本不同。 该方法还包括以下步骤:制造用于具有第一框架尺寸的电动机中的第三组转子部件,并用于具有第二框架尺寸的电动机中,确定期望的电动机框架尺寸,以及选择第一组中的一个 的转子部件和第二组转子部件。 该方法还包括以下步骤:选择第三组转子部件并且组装转子与第一组转子部件和第二组转子部件中的一个以及第三组转子部件,使得转子与 实质上提供了所需的电机框架尺寸。

    Permanent magnet rotors including retention features and methods of assembling the same
    223.
    发明授权
    Permanent magnet rotors including retention features and methods of assembling the same 有权
    永磁转子包括保持特性及组装方法

    公开(公告)号:US08970082B2

    公开(公告)日:2015-03-03

    申请号:US13190082

    申请日:2011-07-25

    CPC classification number: H02K15/03 H02K1/276 Y10T29/49009

    Abstract: A permanent magnet rotor is described. The permanent magnet rotor includes at least one permanent magnet and a rotor core including a first end and a second end. The rotor core includes at least one inner wall that defines a permanent magnet opening configured to receive the at least one permanent magnet. The rotor core further includes at least one permanent magnet retention feature extending substantially radially from the at least one inner wall and configured to maintain a position of the at least one permanent magnet with respect to the at least one permanent magnet opening.

    Abstract translation: 描述永磁转子。 永磁转子包括至少一个永磁体和包括第一端和第二端的转子芯。 转子芯包括限定永久磁体开口的至少一个内壁,所述永磁体开口被构造为容纳至少一个永磁体。 转子芯还包括至少一个从至少一个内壁基本上径向延伸的永久磁铁保持特征,并被配置为保持至少一个永磁体相对于至少一个永磁体开口的位置。

    Axial load sharing bearing system and associated method of use
    224.
    发明授权
    Axial load sharing bearing system and associated method of use 有权
    轴向负荷分担轴承系统及相关使用方法

    公开(公告)号:US08963392B2

    公开(公告)日:2015-02-24

    申请号:US13446532

    申请日:2012-04-13

    Abstract: An axial flux electric machine and associated method of use that includes a shaft, a rotor attached to the shaft, a plurality of permanent magnets positioned underneath the rotor, an electrical winding positioned below the plurality of permanent magnets, a stator that encircles the shaft that is located below the rotor, a first bearing assembly located below the stator and encircling the shaft of the rotor, a second bearing assembly located below the first bearing assembly and encircling the shaft, and a spring mechanism, located between the first bearing assembly and the second bearing assembly, to distribute load placed on the shaft between the first bearing assembly and the second bearing assembly.

    Abstract translation: 一种轴向磁通电机及其相关使用方法,包括轴,附接到轴的转子,位于转子下方的多个永磁体,位于多个永磁体下方的电绕组,围绕轴的定子 位于转子下方的第一轴承组件,位于定子下方并围绕转子的轴的第一轴承组件,位于第一轴承组件下方并围绕轴的第二轴承组件以及位于第一轴承组件和第二轴承组件之间的弹簧机构 第二轴承组件,用于分配放置在第一轴承组件和第二轴承组件之间的轴上的负载。

    Methods and systems for controlling an electric motor
    225.
    发明授权
    Methods and systems for controlling an electric motor 有权
    用于控制电动机的方法和系统

    公开(公告)号:US08928262B2

    公开(公告)日:2015-01-06

    申请号:US13826043

    申请日:2013-03-14

    CPC classification number: H02P21/05

    Abstract: A system and method of controlling an electric motor using a motor controller are provided. The system includes an electric motor controller configured to be coupled to an electric motor and to control the electric motor to produce approximately constant average torque. The controller includes a rectifier configured to convert an AC input voltage to a pulsing DC voltage, a DC link electrically coupled to the rectifier, an inverter electrically coupled to the DC link and configured to generate a three phase AC voltage to drive the electric motor, and a controller configured to receive a measurement of a motor current value for the motor, estimate a torque generated in the electric motor using the measurement of the instantaneous motor current value, and generate a real-time current demand signal using the estimated torque value, the real-time current demand signal compensating the motor controller to produce a substantially constant average motor output torque.

    Abstract translation: 提供了一种使用电动机控制器来控制电动机的系统和方法。 该系统包括电动机控制器,其被配置为联接到电动机并且控制电动机以产生大致恒定的平均转矩。 该控制器包括:整流器,被配置为将AC输入电压转换成脉冲直流电压;电耦合到整流器的DC链路;电耦合到DC链路并被配置为产生三相交流电压以驱动电动机的逆变器, 以及控制器,其被配置为接收对所述电动机的电动机电流值的测量,使用所述瞬时电动机电流值的测量来估计在所述电动机中产生的转矩,并且使用所述估计转矩值生成实时电流请求信号, 实时电流请求信号补偿电动机控制器以产生基本恒定的平均电动机输出转矩。

    Methods and apparatus for reducing size and costs of motor controllers for electric motors
    226.
    发明授权
    Methods and apparatus for reducing size and costs of motor controllers for electric motors 有权
    减小电动机电机控制器尺寸和成本的方法和装置

    公开(公告)号:US08878470B2

    公开(公告)日:2014-11-04

    申请号:US13275735

    申请日:2011-10-18

    Abstract: An electric motor that includes an electronic motor controller is described. The electronic motor controller includes a motor management circuit and a power supply circuit physically separate from the motor management circuit. The motor management circuit includes an insulated metal substrate, driver components operably attached to the insulated metal substrate and operable to provide output signals for application to windings of the electric motor, at least one current sensor operable for sensing an amount of current applied to the windings of and electric motor, and at least one control device operably attached to the insulated metal substrate for controlling operation of the driver components. The power supply circuit includes a composite circuit card and power processing components operably attached to the circuit card and operable to convert an input voltage into at least one output voltage to be supplied to the motor management circuit.

    Abstract translation: 描述包括电动机控制器的电动机。 电子电动机控制器包括电动机管理电路和与电动机管理电路物理分离的电源电路。 电动机管理电路包括绝缘金属基板,驱动元件可操作地连接到绝缘金属基板上,并可操作以提供用于施加到电动机绕组的输出信号,至少一个电流传感器可用于感测施加到绕组的电流量 和电动机,以及可操作地附接到绝缘金属基板的至少一个控制装置,用于控制驱动器部件的操作。 电源电路包括复合电路卡和可操作地附接到电路卡的功率处理组件,并且可操作以将输入电压转换成要提供给电动机管理电路的至少一个输出电压。

    Power factor correction drive circuit topologies and control for switched reluctance machines
    227.
    发明授权
    Power factor correction drive circuit topologies and control for switched reluctance machines 有权
    用于开关磁阻电机的功率因数校正驱动电路拓扑和控制

    公开(公告)号:US08878467B2

    公开(公告)日:2014-11-04

    申请号:US13959334

    申请日:2013-08-05

    Applicant: Krishnan Ramu

    Inventor: Krishnan Ramu

    CPC classification number: H02P6/14 H02K1/14 H02K3/18 H02K2213/03

    Abstract: Drive circuits that provide power factor correction and input current waveform shaping for controlling the speed and torque in a switched reluctance machine (SRM). The machine's phase windings are split into two segments, one of which is used for active power factor correction, input ac current waveform shaping and partial torque generation and the other of which is used for torque generation.

    Abstract translation: 提供功率因数校正和输入电流波形整形的驱动电路,用于控制开关磁阻电机(SRM)中的速度和转矩。 机器相绕组分为两段,其中一段用于有功功率因数校正,输入交流电流波形整形和部分转矩生成,另一段用于转矩产生。

    MANUAL VALVE OPERATOR WITH OVERRIDE CLUTCH APPARATUS

    公开(公告)号:US20140306133A9

    公开(公告)日:2014-10-16

    申请号:US14016594

    申请日:2013-09-03

    Abstract: A manual valve operator with override clutch apparatus is disclosed for selectively actuating a valve. The apparatus includes an operator housing defining an enclosure. An input shaft is rotatably supported by the housing and a worm wheel has a first and a second side, the second side of the worm wheel defining a clutch drive. The worm wheel is disposed within the housing and intermeshes with the input shaft such that when the input shaft is driven, the input shaft drives the worm wheel and the clutch drive about a rotational axis. A sleeve has an outer surface which defines an annular groove. The sleeve has a driven end and an output end. The driven end of the sleeve cooperates with the clutch drive of the worm wheel for selective engagement of the clutch drive and the driven end of the sleeve. A clutch actuating handle is rotatably supported by the housing. The clutch actuating handle has a first and a second end. The second end of the clutch actuating handle defines an offset clutch driver which slidably cooperates with the annular groove of the sleeve. The arrangement is such that when the handle is rotated relative to the housing, the offset clutch driver rides within the annular groove for urging the sleeve axially along the rotational axis so that in a first axial disposition of the sleeve, the clutch drive of the worm wheel and the driven end of the sleeve are engaged relative to each other so that the sleeve is rotated by the worm wheel about the rotational axis. However, when the sleeve is disposed in a second axial disposition thereof, the driven end of the sleeve is disengaged relative to the clutch drive of the worm wheel. A driven shaft has a first and a second end, the second end of the driven shaft being connected to the valve. The driven shaft extends coaxially through the sleeve, the driven shaft being keyed to the sleeve such that relative rotation between the sleeve and the driven shaft is inhibited while axial movement of the sleeve relative to the driven shaft is permitted. The arrangement is structured such that when the sleeve is in the first axial disposition thereof, the worm wheel drivably rotates the sleeve so that the rotating sleeve rotatably drives the driven shaft for actuating the valve. Also, when the sleeve is in the second axial disposition thereof, the driven end of the sleeve is disengaged from the clutch drive of the worm wheel so that rotation of the sleeve and the driven shaft keyed thereto by the input shaft is inhibited.

    METHODS AND SYSTEMS FOR STARTING AN ELECTRIC MOTOR
    229.
    发明申请
    METHODS AND SYSTEMS FOR STARTING AN ELECTRIC MOTOR 有权
    用于启动电动机的方法和系统

    公开(公告)号:US20140265974A1

    公开(公告)日:2014-09-18

    申请号:US13832893

    申请日:2013-03-15

    CPC classification number: H02P1/16 H02P1/46 H02P6/22 H02P2207/05

    Abstract: Methods and systems for starting an electric motor using a motor controller including a processor are provided. The method includes determining if the electric motor is operating, increasing a failed start counter if the electric motor is determined not to be operating, determining a reverse rotation by comparing a failed start counter to a predetermined threshold, and applying a reverse rotation start routine to the electric motor when a reverse rotation is determined.

    Abstract translation: 提供了使用包括处理器的电机控制器启动电动机的方法和系统。 该方法包括确定电动机是否正在运行,如果电动机被确定为不运行,增加失败的起动计数器,通过将故障起动计数器与预定阈值进行比较来确定反向旋转,并且将反向旋转启动程序应用于 确定反转时的电动机。

    METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRIC MOTOR
    230.
    发明申请
    METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRIC MOTOR 有权
    控制电机的方法和系统

    公开(公告)号:US20140265956A1

    公开(公告)日:2014-09-18

    申请号:US13826043

    申请日:2013-03-14

    CPC classification number: H02P21/05

    Abstract: A system and method of controlling an electric motor using a motor controller are provided. The system includes an electric motor controller configured to be coupled to an electric motor and to control the electric motor to produce approximately constant average torque. The controller includes a rectifier configured to convert an AC input voltage to a pulsing DC voltage, a DC link electrically coupled to the rectifier, an inverter electrically coupled to the DC link and configured to generate a three phase AC voltage to drive the electric motor, and a controller configured to receive a measurement of a motor current value for the motor, estimate a torque generated in the electric motor using the measurement of the instantaneous motor current value, and generate a real-time current demand signal using the estimated torque value, the real-time current demand signal compensating the motor controller to produce a substantially constant average motor output torque.

    Abstract translation: 提供了一种使用电动机控制器来控制电动机的系统和方法。 该系统包括电动机控制器,其被配置为联接到电动机并且控制电动机以产生大致恒定的平均转矩。 该控制器包括:整流器,被配置为将AC输入电压转换成脉冲直流电压;电耦合到整流器的DC链路;电耦合到DC链路并被配置为产生三相交流电压以驱动电动机的逆变器, 以及控制器,其被配置为接收对所述电动机的电动机电流值的测量,使用所述瞬时电动机电流值的测量来估计在所述电动机中产生的转矩,并且使用所述估计转矩值生成实时电流请求信号, 实时电流请求信号补偿电动机控制器以产生基本恒定的平均电动机输出转矩。

Patent Agency Ranking