Method to save energy for devices with rotating or reciprocating masses
    91.
    发明授权
    Method to save energy for devices with rotating or reciprocating masses 有权
    节省能量的方法,用于具有旋转或往复运动的物体

    公开(公告)号:US08698446B2

    公开(公告)日:2014-04-15

    申请号:US12967128

    申请日:2010-12-14

    IPC分类号: H02P23/00 H02P25/00 H02P27/00

    摘要: A system and method are disclosed for turning off the voltage to a pump jack electric motor during predetermined periods of time to save energy. In the method, the motor's response to closed-loop control may be evaluated over several pump strokes. The periods of the pump stroke when it is feasible to turn off the motor may be identified. The consistency of the measurements over several strokes may be evaluated. The motor may be turned off during predetermined periods on subsequent pump strokes when each pump stroke shows sufficiently similar behavior to that predicted during the closed-loop control process. The system may return to the closed-loop control process after a predetermined period of time to adjust to any changes in the system.

    摘要翻译: 公开了一种系统和方法,用于在预定的时间段内将泵电压器的电压截止以节省能量。 在该方法中,电机对闭环控制的响应可以通过几个泵冲程进行评估。 可以识别可以关闭电动机时的泵冲程的周期。 可以评估几个笔画上的测量的一致性。 在每个泵冲程显示与闭环控制过程中预测的行为足够相似的行为时,在随后的泵冲程上的预定时间内可以关闭马达。 系统可以在预定时间段之后返回到闭环控制过程,以适应系统中的任何改变。

    Electrical machine safety system
    92.
    发明授权
    Electrical machine safety system 失效
    电机安全系统

    公开(公告)号:US08648575B2

    公开(公告)日:2014-02-11

    申请号:US13073344

    申请日:2011-03-28

    摘要: An electrical machine system including a permanent magnet assembly having a magnetic field and a plurality of conductive coils, the magnet assembly and coils arranged for relative rotation between the coils and magnetic field in the manner of an electrical generator or motor, the system further comprising a current injector electrically connected to said coils and arranged selectively to supply a current signal thereto, the current signal being asynchronous with the frequency of rotation between the permanent magnet assembly and coils so as to heat and thereby demagnetise one or more magnet within said permanent magnet assembly.

    摘要翻译: 一种电机系统,包括具有磁场和多个导电线圈的永磁体组件,所述磁体组件和线圈被布置成以发电机或电动机的方式在线圈和磁场之间进行相对旋转,所述系统还包括: 电流注入器电连接到所述线圈并且选择性地布置以向其提供电流信号,所述电流信号与永磁体组件和线圈之间的旋转频率异步,以便加热并由此使所述永磁体组件中的一个或多个磁体消磁 。

    Electric motor drive
    94.
    发明授权
    Electric motor drive 有权
    电机驱动

    公开(公告)号:US08207700B2

    公开(公告)日:2012-06-26

    申请号:US12693134

    申请日:2010-01-25

    IPC分类号: H02P25/00

    CPC分类号: H02P3/26 B66B1/306 B66B1/308

    摘要: The invention relates to a switch arrangement of an electric motor drive (1). The electric motor drive comprises safety switches (3) determined by the safety of the drive, a controlled mechanical brake (4), a power supply circuit (5) of the brake control, a power converter (6), which power converter comprises a network rectifier (7) and a power rectifier (8) of the motor. The power rectifier of the motor is at least partly implemented with controlled semiconductor switches (9, 10) arranged into a bridge. The power converter comprises an intermediate circuit (11, 12) between the network rectifier and the power rectifier of the motor. The switch arrangement comprises normally-open switches (13, 14) in the intermediate circuit of the power converter (6).

    摘要翻译: 本发明涉及一种电动机驱动装置(1)的开关装置。 电动机驱动器包括由驱动器的安全性确定的安全开关(3),受控的机械制动器(4),制动控制的电源电路(5),功率转换器(6) 网络整流器(7)和电动整流器(8)。 至少部分地通过布置在桥中的受控半导体开关(9,10)来实现电动机的动力整流器。 电力转换器包括网络整流器和电动机的功率整流器之间的中间电路(11,12)。 开关装置包括在功率转换器(6)的中间电路中的常开开关(13,14)。

    Synchronous sampling of PWM waveforms
    95.
    发明授权
    Synchronous sampling of PWM waveforms 有权
    PWM波形同步采样

    公开(公告)号:US08072180B1

    公开(公告)日:2011-12-06

    申请号:US10308887

    申请日:2002-12-03

    IPC分类号: H02P27/04 H02P25/00

    摘要: A device for filtering a carrier frequency of a PWM waveform. The device includes a low-pass filter for converting the PWM waveform into an analog signal. The device further includes a sampling analog-to-digital converter receiving the analog signal from the low-pass filter and the device also includes a controller for causing the non-integrating analog to digital converter to sample the PWM waveform at the pulse frequency rate thereby rejecting the carrier frequency. As already stated the PWM waveform includes a pulse which has a leading edge, a top portion, and a trailing edge. In one embodiment, the controller causes the A/D converter to sample during the top of the pulse. Preferably, the controller causes the A/D converter to sample at substantially the center of the pulse.

    摘要翻译: 用于滤波PWM波形载波频率的装置。 该器件包括用于将PWM波形转换为模拟信号的低通滤波器。 该装置还包括从低通滤波器接收模拟信号的采样模数转换器,并且该装置还包括用于使非积分模数转换器以脉冲频率速率采样PWM波形的控制器,由此 拒绝载波频率。 如已经说明的那样,PWM波形包括具有前沿,顶部和后沿的脉冲。 在一个实施例中,控制器使得A / D转换器在脉冲的顶部采样。 优选地,控制器使得A / D转换器基本上在脉冲的中心处采样。

    Wheel driving apparatus and electric vehicle including the same
    97.
    发明授权
    Wheel driving apparatus and electric vehicle including the same 有权
    车轮驱动装置和包括其的电动车辆

    公开(公告)号:US08004223B2

    公开(公告)日:2011-08-23

    申请号:US12389859

    申请日:2009-02-20

    IPC分类号: H02P25/00

    摘要: An electric bike includes a wheel driving apparatus. The wheel driving apparatus includes an electric wheel drive motor which drives a wheel, a gap changer which changes a gap length in the wheel drive motor, and a motor control unit which controls the wheel drive motor and the gap changer. The motor control unit calculates a target gap length for the gap changing motor in the gap changer based on an accelerator opening-degree signal, a rotation speed, a q-axis electric-current command value, a power source voltage, and a voltage utilization rate. Then, a feedback control is provided to the gap changer based on a difference value between the target gap length and the actual gap-length. A good vehicle characteristic is obtained without being affected by individual variability or operating environment of the electric motor through efficient drive of the electric motor from a low-speed range through a high-speed range.

    摘要翻译: 电动自行车包括车轮驱动装置。 车轮驱动装置包括驱动车轮的电动车轮驱动电动机,改变车轮驱动电动机中的间隙长度的间隙更换器以及控制车轮驱动电动机和间隙变换器的电动机控制单元。 电动机控制单元基于加速器开度信号,转速,q轴电流指令值,电源电压和电压利用率来计算间隙变更电动机的间隙变更电动机的目标间隙长度 率。 然后,基于目标间隙长度与实际间隙长度的差值,向间隙变更器提供反馈控制。 通过高速驱动电动机从低速范围通过高速范围,可以获得良好的车辆特性而不受电动机的个体变化或操作环境的影响。

    Rotor driving control device and image forming apparatus
    98.
    发明授权
    Rotor driving control device and image forming apparatus 有权
    转子驱动控制装置和成像装置

    公开(公告)号:US07923959B2

    公开(公告)日:2011-04-12

    申请号:US11587922

    申请日:2005-04-25

    IPC分类号: H02P23/00 H02P25/00

    摘要: A device of a motor with a rotation control means that decreases the fluctuation of its rotation period. The control is carried out based on the amplitude and the phase generated by amplitude-and-phase generating devices, detecting passage time of detected portions (13) in different zones. And a color image forming apparatus of tandem type with such motors.

    摘要翻译: 具有旋转控制装置的电动机的装置,其减小其旋转周期的波动。 基于由相位相位产生装置产生的幅度和相位,检测不同区域中的检测部分(13)的通过时间来进行控制。 以及具有这种电动机的串联型彩色图像形成装置。

    Induction and switched reluctance motor
    99.
    发明授权
    Induction and switched reluctance motor 失效
    感应和开关磁阻电动机

    公开(公告)号:US07852037B2

    公开(公告)日:2010-12-14

    申请号:US11918914

    申请日:2006-04-05

    IPC分类号: H02P25/00

    摘要: This application describes a motor designed to operate as a reluctance machine at low speeds and as an induction machine at high speeds. The drive waveform is composed of one or more harmonics to be used to match the reluctance pattern of the stator-rotor, causing the rotor to rotate due to the reluctance effect, and one or more other harmonics to induce current in the rotor, causing the rotor to rotate due to the induction effect and the subsequent interaction of the stator and rotor magnetic fields. The two effects are generally not applied simultaneously.

    摘要翻译: 该应用描述了一种设计用作低速磁阻电机和高速感应电机的电动机。 驱动波形由用于匹配定子 - 转子的磁阻图案的一个或多个谐波组成,使得转子由于磁阻效应而旋转,以及一个或多个其它谐波以在转子中感应电流,导致 转子由于感应效应和随后的定子和转子磁场的相互作用而旋转。 这两种效果通常不会同时应用。

    Controller for motor
    100.
    发明授权
    Controller for motor 失效
    电机控制器

    公开(公告)号:US07622875B2

    公开(公告)日:2009-11-24

    申请号:US11826254

    申请日:2007-07-13

    IPC分类号: H02P25/00

    摘要: A change in torque produced by a motor having two rotors is reduced when the motor operates in a low-velocity and low-torque operational state. The motor has a first rotor and a second rotor, each of which has a permanent magnet, and an output shaft capable of rotating integrally with the first rotor. The second rotor can relatively rotate with respect to the first rotor by a driving force from a phase difference changing driving device, and the phase difference between the rotors (rotor phase difference) can be changed by the relative rotation of the second rotor with respect to the first rotor. When the values of the torque and the rotational velocity of the motor lie within a predetermined region in the proximity of 0, the phase difference changing driving device adjusts the rotor phase difference to a predetermined phase difference for which the strength of a composite field of the permanent magnets is lower than a maximum strength.

    摘要翻译: 当电动机以低速和低扭矩操作状态操作时,由具有两个转子的电动机产生的转矩的变化减小。 电动机具有第一转子和第二转子,每个转子和第二转子都具有永磁体,以及能够与第一转子一体旋转的输出轴。 第二转子可以通过来自相位差变化驱动装置的驱动力相对于第一转子相对旋转,并且转子之间的相位差(转子相位差)可以通过第二转子相对于 第一个转子。 当电动机的转矩和转速的值在0附近的预定区域内时,相位差变化驱动装置将转子相位差调整到预定的相位差,其中, 永久磁铁低于最大强度。