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    • 111. 发明申请
    • ESTIMATION OF ACTUAL TORQUE IN AN ELECTRICAL MOTOR DRIVE
    • 电动机驱动中实际扭矩的估计
    • US20120146559A1
    • 2012-06-14
    • US13308477
    • 2011-11-30
    • Per Richard Johansson
    • Per Richard Johansson
    • H02P21/14
    • H02P21/141H02P21/0089H02P21/20H02P2205/05
    • It is presented a control device for driving an electric motor, wherein a drive control signal for the electric motor is arranged to be determined using a calculated rotor flux. A direct quadrature, dq, coordinate system relating to a rotor of the electric motor is used. The control device comprises a flux estimator arranged to determine the calculated rotor flux using a quadrature axis voltage, a measured direct axis current, a measured quadrature axis current, an angular velocity, stator resistance and a direct axis inductance and an actual torque calculator arranged to obtain an actual torque estimation using the calculated rotor flux, the measured direct axis current and the measured quadrature axis current. A corresponding method is also presented.
    • 提出了一种用于驱动电动机的控制装置,其中使用计算的转子磁通量来确定用于电动机的驱动控制信号。 使用与电动机的转子相关的直接正交dq坐标系。 控制装置包括通量估计器,其被设置为使用正交轴电压,测量的直轴电流,测量的正交轴电流,角速度,定子电阻和直轴电感来确定计算出的转子磁通,以及布置为 使用计算的转子磁通量,测量的直轴电流和测量的正交轴电流获得实际转矩估计。 还提出了相应的方法。
    • 114. 发明授权
    • Apparatus for carrying out improved control of rotary machine
    • 用于改进旋转机械控制的装置
    • US08063596B2
    • 2011-11-22
    • US12491765
    • 2009-06-25
    • Akihiro Imura
    • Akihiro Imura
    • H02P1/04H02P6/00H02P21/00H02P6/12H02P6/14H02P7/00H02P27/00G05B11/28
    • B60L15/025B60L2260/44H02P21/00H02P21/0089Y02T10/643
    • In an apparatus, a first drive unit drives, in a first range of a voltage utilization factor, a switching member to thereby control an output voltage of the power converter to be matched with a command voltage. A second drive unit drives, in a second range of the voltage utilization factor, the switching member to thereby generate a value of a controlled variable of a rotary machine. The second range of the voltage utilization factor is higher than the first range thereof. An estimating unit estimates, during the switching member being driven by the second drive unit, a value of a parameter associated with the output voltage of the power converter. The estimated value is required for the first drive unit to generate the value of the controlled variable generated by the second drive unit.
    • 在装置中,第一驱动单元在电压利用率的第一范围内驱动开关构件,从而控制功率转换器的输出电压与指令电压相匹配。 第二驱动单元在电压利用率的第二范围内驱动切换构件,从而产生旋转机器的受控变量的值。 电压利用系数的第二范围高于其第一范围。 在由第二驱动单元驱动的开关构件期间,估计单元估计与功率转换器的输出电压相关联的参数的值。 第一驱动单元需要估计值来生成由第二驱动单元产生的受控变量的值。
    • 115. 发明申请
    • CONTROL DEVICE OF MOTOR DRIVING APPARATUS
    • 电机驱动装置的控制装置
    • US20110241584A1
    • 2011-10-06
    • US13019569
    • 2011-02-02
    • Peng HESubrata SAHAKen IWATSUKI
    • Peng HESubrata SAHAKen IWATSUKI
    • H02P6/08
    • H02P27/08H02P6/08H02P6/181H02P21/0021H02P21/0089H02P21/06
    • Disclosed is a control device capable of ending strong field control based on a voltage index, such as a modulation factor. A voltage waveform control unit performs PWM control when a voltage index indicating the magnitude of voltage command values with respect to a DC voltage is less than a predetermined square wave threshold value, and performs square wave control when the voltage index is equal to or greater than the threshold. A field adjusting unit performs strong field control on the condition that the voltage index is equal to or greater than a predetermined strong field threshold value less than the square wave threshold value. A mode control unit ends the strong field control when a rotational speed is less than a rotational speed threshold value determined on the basis of a target torque and the DC voltage.
    • 公开了一种能够基于诸如调制因子等电压指标来结束强场控制的控制装置。 当指示相对于直流电压的电压指令值的大小的电压指标小于预定的方波阈值时,电压波形控制单元执行PWM控制,并且当电压指数等于或大于 门槛。 场调整单元在电压指数等于或大于小于方波阈值的预定强场阈值的条件下进行强场控制。 当转速小于基于目标转矩和直流电压确定的转速阈值时,模式控制单元结束强励磁控制。
    • 116. 发明申请
    • ELECTRIC POWER STEERING DEVICE
    • 电动转向装置
    • US20110166750A1
    • 2011-07-07
    • US13063406
    • 2009-09-02
    • Yasuhiro Nakano
    • Yasuhiro Nakano
    • B62D6/00B62D5/04
    • B62D5/046H02P21/0089H02P21/06H02P25/024
    • There is provided a electric power steering device which can perform torque control through a simple arithmetic process using a synchronous reluctance motor having a nonlinear current/torque characteristic. A target torque is transmitted from an EPS control unit 41 to a motor control unit 51. The motor control unit 51 calculates a target-current effective value I and a target-current phase θ from the input target torque. Based on the calculated target-current effective value I and target-current phase θ, calculation is changed whether to perform calculation so that the maximum torque (the maximum torque obtainable at the minimum current effective value) can be obtained, or to perform calculation so that the maximum output (the maximum output obtainable at the minimum current effective value) can be obtained in accordance with a duty ratio of an output by a PWM converting unit 57 comprising a three-phase inverter. Next, a three-phase biaxial converting unit 53 calculates a target q-axis current Iq and a target d-axis current Id from the target-current effective value I and the target-current phase θ, and the PWM converting unit 57 performs duty control in order to control the torque of a motor 58.
    • 提供了一种电动助力转向装置,其能够通过使用具有非线性电流/转矩特性的同步磁阻电动机的简单运算处理来执行转矩控制。 目标转矩从EPS控制单元41发送到电动机控制单元51.电动机控制单元51计算目标电流有效值I和目标电流相位; 从输入目标扭矩。 基于计算出的目标电流有效值I和目标电流相位θ,计算改变是否进行计算,从而可以获得最大转矩(以最小电流有效值获得的最大转矩)或执行计算 使得可以根据包括三相逆变器的PWM转换单元57的输出的占空比来获得最大输出(在最小电流有效值下可获得的最大输出)。 接下来,三相双轴转换单元53从目标电流有效值I和目标电流相位θ计算目标q轴电流Iq和目标d轴电流Id,PWM转换单元57执行 以控制马达58的扭矩。
    • 118. 发明授权
    • Electric motor control device and drive unit
    • 电动机控制装置及驱动装置
    • US07960927B2
    • 2011-06-14
    • US12318497
    • 2008-12-30
    • Zhiqian Chen
    • Zhiqian Chen
    • H02P7/00
    • H02P21/06H02P21/0089H02P21/22H02P27/08H02P2201/07H02P2205/01
    • An electric motor control device includes a power supply unit that supplies power to a three-phase electric motor; a three-phase current sensor that individually detects three respective phase currents of the three-phase electric motor; a summing unit that calculates a three-phase sum by adding the three phase currents detected by the three-phase current sensor; a detected current correction unit that calculates correction amounts for at least two of the three phase currents based on a phase and an amplitude of the three-phase sum and then corrects phase current detection values by the calculated correction amounts; and a motor control unit that controls a power supply by the power supply unit to the three-phase electric motor by feedback control based on the three phase currents after correction by the detected current correction unit and on target currents.
    • 电动机控制装置包括向三相电动机供电的供电单元; 分别检测三相电动机的三相电流的三相电流传感器; 求和单元,其通过将由三相电流传感器检测出的三相电流相加来计算三相和; 检测电流校正单元,其基于三相和的相位和幅度来计算三相电流中的至少两个的校正量,然后通过计算出的校正量来校正相电流检测值; 以及电动机控制单元,其通过基于由所检测的电流校正单元校正后的三相电流和目标电流的反馈控制来控制由电源单元向三相电动机供电的电力。
    • 120. 发明申请
    • INVERTER DEVICE FOR WASHING MACHINE
    • 洗衣机逆变装置
    • US20100242549A1
    • 2010-09-30
    • US12741768
    • 2008-11-04
    • Tsuyoshi HosoitoIsamu Nitta
    • Tsuyoshi HosoitoIsamu Nitta
    • D06F25/00
    • H02P21/0089D06F37/306H02K1/2786H02K7/14H02K2213/09H02P6/34
    • An inverter device provided on a washing machine for controlling a permanent magnet motor being provided with a rotor magnet including a first permanent magnet and a second permanent magnet having a level of coercivity smaller than the first permanent magnet. An excitation current is produced to vary the amount of magnetism of the second permanent magnet to execute a dehydrate operation with a magnetic flux of the rotor magnet reduced and to execute an operation being specified to operate at a lower maximum rotation count compared to the dehydrate operation with the magnetic flux of the rotor magnet increased. When the amount of magnetism of the second permanent magnet is varied while rotation of the permanent magnet motor is stopped, a phase of the excitation current for varying the amount of magnetism is switched depending on a rotation stop position of the rotor.
    • 一种逆变器装置,设置在用于控制永磁电动机的洗衣机上,该永久磁铁电动机设置有包括具有小于第一永磁体的矫顽力水平的第一永磁体和第二永磁体的转子磁体。 产生激励电流以改变第二永久磁铁的磁性量,以在转子磁体的磁通量减小的情况下执行脱水操作,并且执行与脱水操作相比被指定为以较低的最大旋转计数操作的操作 转子磁体的磁通量增加。 当第二永久磁铁的磁力量在永久磁铁马达的转动停止时发生变化时,根据转子的转动停止位置来切换用于改变磁力量的激励电流的相位。