EXTENDED-SPEED LOW-RIPPLE TORQUE CONTROL OF SWITCHED RELUCTANCE MOTOR DRIVES
    41.
    发明申请
    EXTENDED-SPEED LOW-RIPPLE TORQUE CONTROL OF SWITCHED RELUCTANCE MOTOR DRIVES 有权
    开关式电动机驱动的扩展速度低纹波扭矩控制

    公开(公告)号:US20150162863A1

    公开(公告)日:2015-06-11

    申请号:US14565940

    申请日:2014-12-10

    发明人: Ali Emadi Jin Ye

    IPC分类号: H02P25/08

    CPC分类号: H02P25/098

    摘要: Various embodiments are described herein for an extended-speed low-ripple torque control of a switched reluctance motor (SRM) using online torque sharing function (TSF). Two operational modes of an online TSF are defined during the commutation: In Mode I, absolute value of rate of change of flux linkage (ARCFL) of incoming phase is higher than outgoing phase; in Mode II, ARCFL of outgoing phase is higher than incoming phase. To compensate the torque error produced by imperfect tracking of phase current, a proportional and integral compensator with torque error is added to the torque reference of outgoing phase in Mode I and incoming phase in Mode II. Therefore, the total torque is determined by the phase with lower ARCFL rather than the phase with higher ARCFL as in conventional TSFs.

    摘要翻译: 这里描述了使用在线转矩共享功能(TSF)的开关磁阻电机(SRM)的扩展速度低纹波转矩控制的各种实施例。 在换向期间定义了在线TSF的两种操作模式:在模式I中,进入相位的磁链变化率(ARCFL)的绝对值高于输出相位; 在模式II中,输出相位的ARCFL高于进入相位。 为了补偿相电流不完全跟踪产生的转矩误差,在模式I和模式II中的输入相位中,具有转矩误差的比例积分补偿器被加到输出相的转矩基准上。 因此,总转矩由具有较低ARCFL的相位而不是像常规TSF中具有较高ARCFL的相位确定。

    MOTOR ACCELERATION APPARATUS AND METHOD
    42.
    发明申请
    MOTOR ACCELERATION APPARATUS AND METHOD 审中-公开
    电机加速装置和方法

    公开(公告)号:US20150102751A1

    公开(公告)日:2015-04-16

    申请号:US14515032

    申请日:2014-10-15

    IPC分类号: H02P25/08

    摘要: Embodiments of the invention provide a motor acceleration apparatus and a motor acceleration method. According to at least one embodiment, the motor acceleration apparatus includes a rectifier converting household power into direct current (DC) voltage to output the converted DC voltage, a switching converter switching the DC voltage output from the rectifier in an alternating current manner to drive a two-phase switched reluctance motor (SRM), and a microprocessor controlling the switching converter at the time of initial acceleration of the two-phase SRM, so that an initially set dwell angle is changed to a dwell angle in a normal operation state and starting an advanced-angle control.

    摘要翻译: 本发明的实施例提供一种电动机加速装置和电动机加速方法。 根据至少一个实施例,电动机加速装置包括将家用电力转换为直流(DC)电压以输出转换的直流电压的整流器,开关变换器以交流方式切换从整流器输出的直流电压,以驱动 两相开关磁阻电机(SRM),以及在两相SRM初始加速时对开关变换器进行控制的微处理器,使得初始设定的驻留角度在正常运行状态下变为驻留角,并开始 先进角度控制。

    Switching control apparatus and method of two-phase switched reluctance motor
    43.
    发明授权
    Switching control apparatus and method of two-phase switched reluctance motor 有权
    两相开关磁阻电机的开关控制装置和方法

    公开(公告)号:US08952647B2

    公开(公告)日:2015-02-10

    申请号:US13591142

    申请日:2012-08-21

    IPC分类号: H02P25/08

    CPC分类号: H02P25/092

    摘要: Disclosed herein are a switching control apparatus and method of a two-phase switched reluctance motor. The witching control apparatus includes: a rectifying unit rectifying commercial power; and an active converter including a pair of common switches commonly connected to two phase windings of the two-phase SRM, a pair of first phase switches bridge-connected to the pair of common switches at any one of the two phase windings, a pair of second phase switches bridged-connected to the pair of common switches at the other of the two phase windings and connected in series with each other, and a plurality of current feedback diodes each connected to the switches and operated in operation modes 1 to 3 to drive the two-phase SMR.

    摘要翻译: 这里公开了两相开关磁阻电动机的开关控制装置和方法。 巫师控制装置包括:整流单元整流商用电源; 以及一个有源转换器,它包括共同连接到两相SRM的两相绕组的一对公共开关,一对在两个相绕组中的任一个上桥接到一对公共开关的第一相位开关,一对 在两个相绕组中的另一个上桥接连接到一对公共开关并彼此串联连接的第二相开关,以及多个电流反馈二极管,每个电流反馈二极管连接到开关并在操作模式1至3中驱动 两相SMR。

    Switched reluctance initial rotor position estimation
    44.
    发明授权
    Switched reluctance initial rotor position estimation 有权
    开关磁阻初始转子位置估计

    公开(公告)号:US08866433B2

    公开(公告)日:2014-10-21

    申请号:US13664623

    申请日:2012-10-31

    申请人: Caterpillar Inc.

    IPC分类号: H02P6/00 H02P6/18 H02P25/08

    摘要: A method of estimating an initial rotor position of a switched reluctance (SR) machine having a rotor and a stator is provided. The method may comprise the steps of driving a phase current in each of a plurality of phases of the SR machine to a predefined limit, performing an integration of a common bus voltage associated with each phase, determining a flux value for each phase based on the integrations, and determining the initial rotor position based on the flux values.

    摘要翻译: 提供了一种估计具有转子和定子的开关磁阻(SR)机器的初始转子位置的方法。 该方法可以包括以下步骤:将SR机器的多个相位中的每一相中的相电流驱动到预定义的极限,执行与每个相位相关联的公共总线电压的积分,基于该相位确定每个相位的磁通值 并且基于通量值确定初始转子位置。

    Compensating Hysteresis Bands to Hold Specified Switching Frequency
    45.
    发明申请
    Compensating Hysteresis Bands to Hold Specified Switching Frequency 有权
    补偿迟滞带保持指定的开关频率

    公开(公告)号:US20140021889A1

    公开(公告)日:2014-01-23

    申请号:US13555530

    申请日:2012-07-23

    IPC分类号: H02P25/08

    CPC分类号: H02P27/10 H02P25/092

    摘要: A control system for compensating a hysteresis band of a switched reluctance (SR) machine having a rotor and a stator is provided. The control system may include a converter circuit and a controller. The converter circuit may be operatively coupled to the stator and include a plurality of switches in selective communication with each phase of the stator. The controller may be in communication with each of the stator and the converter circuit, and configured to monitor at least one phase current of the SR machine relative to a current threshold of the hysteresis band, determine an adjustment value based on a difference between the phase current and the current threshold if the phase current exceeds the current threshold, and compensate the current threshold by the adjustment value.

    摘要翻译: 提供了一种用于补偿具有转子和定子的开关磁阻(SR)机器的滞后带的控制系统。 控制系统可以包括转换器电路和控制器。 转换器电路可以可操作地耦合到定子并且包括与定子的每个相位选择性地连通的多个开关。 控制器可以与定子和转换器电路中的每一个进行通信,并且被配置为相对于滞后带的电流阈值监视SR机器的至少一个相电流,基于相位之间的差确定调整值 电流和电流阈值,如果相电流超过电流阈值,并通过调整值补偿电流阈值。

    Torque based electronic pulse width modulation control system for a switched reluctance motor
    46.
    发明授权
    Torque based electronic pulse width modulation control system for a switched reluctance motor 有权
    用于开关磁阻电机的基于扭矩的电子脉宽调制控制系统

    公开(公告)号:US08508178B2

    公开(公告)日:2013-08-13

    申请号:US13072929

    申请日:2011-03-28

    申请人: Neil N. Norell

    发明人: Neil N. Norell

    IPC分类号: H02P7/29 H02P6/14 H02P25/08

    摘要: Methods and systems of accelerating a brushless, DC electric motor based on torque may include determining a slope based on a maximum torque of the BLDC motor at a lower operating load and a maximum torque of the motor at a higher operating load, determining a period of the rotor based on sensor signals, and determining and applying a phase advance to a PWM pulse for a subsequent revolution of the rotor based on the period and the slope. In some embodiments, the amount of the phase advance is further based on maximum load optimum advance and/or maximum load speed. In some embodiments, a phase dwell is determined based on a positive torque zone and applied to the PWM pulse. In some embodiments, when the motor is operating below a given threshold, fixed-width PWM pulses are applied to subsequent revolutions of the rotor instead of phase-advanced PWM pulses.

    摘要翻译: 基于扭矩加速无刷直流电动机的方法和系统可以包括基于较低工作负载下的BLDC电动机的最大转矩和在较高运行负载下的电动机的最大转矩来确定一个斜率,确定一个 基于传感器信号的转子,并且基于周期和斜率确定并将相位提前施加到转子的后续转动的PWM脉冲。 在一些实施例中,相位超前的量进一步基于最大负载最佳提前和/或最大负载速度。 在一些实施例中,基于正转矩区域确定相位驻留并施加到PWM脉冲。 在一些实施例中,当电机工作在给定阈值以下时,固定宽度PWM脉冲施加到转子的后续转数,而不是相位超前PWM脉冲。

    Switching Strategy for Switched Reluctance Machine
    47.
    发明申请
    Switching Strategy for Switched Reluctance Machine 有权
    开关磁阻电机切换策略

    公开(公告)号:US20130147416A1

    公开(公告)日:2013-06-13

    申请号:US13315853

    申请日:2011-12-09

    IPC分类号: H02P25/08

    CPC分类号: H02P25/08

    摘要: A method of controlling a motor is provided. The method may determine a speed of the motor, and engage a soft chopping routine on a first switch and a second switch of each phase if the motor speed is relatively low. The first switch may be driven by a first pulse width modulated PWM signal and the second switch being driven by a second PWM signal. The first and second PWM signals may be alternatingly configured such that at least one of the first switch and the second switch is closed at any point during the distributed soft chopping routine and both the first switch and the second switch are never simultaneously open.

    摘要翻译: 提供一种控制电动机的方法。 如果电动机速度相对较低,则该方法可以确定电动机的速度,并且在每相的第一开关和第二开关上接合软斩波程序。 第一开关可以由第一脉宽调制PWM信号驱动,第二开关由第二PWM信号驱动。 第一和第二PWM信号可以交替地配置成使得在分布式软斩波程序期间的任何点上第一开关和第二开关中的至少一个都是闭合的,并且第一开关和第二开关都不会同时开启。

    MOTOR APPARATUS
    48.
    发明申请
    MOTOR APPARATUS 有权
    电机设备

    公开(公告)号:US20130134920A1

    公开(公告)日:2013-05-30

    申请号:US13684820

    申请日:2012-11-26

    申请人: DENSO CORPORATION

    发明人: Tomokazu ISHIKAWA

    IPC分类号: H02P25/08

    CPC分类号: H02P25/0925

    摘要: A motor apparatus includes a full-pitch winding type reluctance motor which has three phase coils formed of full-pitch windings, and a controller which controls applying current to each coil of the three phases. When changing from a state where current is applied to a first phase coil and a second phase coil to a state where current is applied to a third phase coil and the first phase coil, the controller displaces the timing when decreasing the current of the second phase coil is started and the timing when increasing the current of the third phase coil is started from each other.

    摘要翻译: 电动机装置包括具有由全间距绕组形成的三相线圈的全间距绕线式磁阻电动机,以及控制对三相的各线圈施加电流的控制器。 当从施加电流到第一相线圈和第二相线圈的状态改变到向第三相线圈和第一相线圈施加电流的状态时,控制器在减小第二相电流的时候移位定时 线圈启动,并且增加第三相线圈的电流的定时彼此开始。

    Motor controlling device
    49.
    发明授权
    Motor controlling device 有权
    电机控制装置

    公开(公告)号:US08421396B2

    公开(公告)日:2013-04-16

    申请号:US12987299

    申请日:2011-01-10

    IPC分类号: H02P25/00 H02P25/08

    CPC分类号: G05B7/02

    摘要: A motor controlling device includes an encoder to output pulse signals with a predetermined angle interval as a rotor of a motor is rotated. An energized phase of the motor is sequentially switched by detecting a rotation position of the rotor based on a value of counting the signals. An initial drive controlling portion executes an initial drive to switch the energized phase with a predetermined pattern after the device is activated so as to learn a relationship among the count value, the rotation position and the energized phase. An initial drive prohibiting portion prohibits the execution of the initial drive until a predetermined time is elapsed after the initial drive is finished.

    摘要翻译: 电动机控制装置包括编码器,当电动机的转子旋转时,输出具有预定角度间​​隔的脉冲信号。 基于对信号进行计数的值,通过检测转子的旋转位置来依次切换电动机的通电相位。 初始驱动控制部分在器件启动之后执行初始驱动以切换具有预定图案的通电相位,以便学习计数值,旋转位置和通电相位之间的关系。 初始驱动禁止部分禁止执行初始驱动,直到在初始驱动完成之后经过预定时间。

    METHOD OF CONTROLLING CURRENT OF HIGH-SPEED SWITCHED RELUCTANCE MOTOR
    50.
    发明申请
    METHOD OF CONTROLLING CURRENT OF HIGH-SPEED SWITCHED RELUCTANCE MOTOR 失效
    控制高速开关电动机电流的方法

    公开(公告)号:US20120104987A1

    公开(公告)日:2012-05-03

    申请号:US13024148

    申请日:2011-02-09

    IPC分类号: H02P25/08

    CPC分类号: H02P25/02

    摘要: Disclosed herein is a method of controlling the current of a high-speed Switched Reluctance Motor (SRM) using an inverter circuit including a first switching element, a second switching element, a first diode, a second diode and a reactor, wherein the first switching element and the first diode, the second diode and the second switching element are connected to a bridge circuit, and one end of the reactor is connected to the junction of the first switching element and the first diode, and the remaining end of the reactor is connected to the junction of the second diode and the second switching element; and excitation mode, free-wheeling mode-1, the excitation mode, and free-wheeling mode-2 are sequentially performed in a unit period T, and, when the control is terminated, demagnetization is performed.

    摘要翻译: 这里公开了使用包括第一开关元件,第二开关元件,第一二极管,第二二极管和电抗器的逆变器电路来控制高速开关磁阻电动机(SRM)的电流的方法,其中第一开关 元件和第一二极管,第二二极管和第二开关元件连接到桥式电路,并且电抗器的一端连接到第一开关元件和第一二极管的接点,反应器的剩余端 连接到第二二极管和第二开关元件的结; 励磁模式,续流模式-1,励磁模式和续流模式-2在单位周期T中顺序进行,并且当控制终止时,执行退磁。