Motor control device for high frequency AC driven motor
    1.
    发明授权
    Motor control device for high frequency AC driven motor 有权
    高频交流驱动电机电机控制装置

    公开(公告)号:US6008617A

    公开(公告)日:1999-12-28

    申请号:US198503

    申请日:1998-11-24

    IPC分类号: A47B51/00 H02P21/00

    CPC分类号: H02P21/06 H02P21/0085

    摘要: A motor control device for an AC motor driven by a power converter with a maximum output frequency more than 500 Hz has a digital arithmetic unit which performs current-feed back control of the AC motor up to a maximum output frequency of the power converter, and outputs an AC voltage command to the power converter. The digital arithmetic unit includes a voltage control signal calculating unit for calculating a vector sum of the d-axis current deviation from a first subtracting unit and the q-axis current deviation from a second subtracting unit based on the d-axis and q-axis phases from a phase calculating unit as well as for calculating a d-axis voltage control signal and a q-axis voltage control signal according to the calculated vector sum, and performs current integration control for the d-axis and q-axis using the calculated vector sum as an input value. The AC voltage command is calculated based on the d-axis voltage control signal and the q-axis voltage control signals.

    摘要翻译: 用于由最大输出频率大于500Hz的功率转换器驱动的交流电动机的电动机控制装置具有数字运算单元,其执行直流电动机的最大输出频率的电流反馈控制,以及 向电力转换器输出交流电压指令。 数字运算单元包括:电压控制信号计算单元,用于基于d轴和q轴计算来自第一减法单元的d轴电流偏差和来自第二减法单元的q轴电流偏差的矢量和 根据计算出的矢量和计算d轴电压控制信号和q轴电压控制信号,并使用计算出的矢量和相位计算单元对d轴和q轴进行电流积分控制 向量和作为输入值。 根据d轴电压控制信号和q轴电压控制信号计算交流电压指令。

    Electric motor controller capable of performing stable current control
during load disturbance and/or a regenerating mode
    2.
    发明授权
    Electric motor controller capable of performing stable current control during load disturbance and/or a regenerating mode 失效
    电动机控制器能够在负载扰动和/或再生模式期间执行稳定的电流控制

    公开(公告)号:US5877607A

    公开(公告)日:1999-03-02

    申请号:US705597

    申请日:1996-08-30

    摘要: In a controller for an electric vehicle, a voltage current phase difference calculating circuit calculates a vector phase .theta..sub.c from a voltage command value and the primary current of an alternating current motor. The vector phase .theta..sub.c is input to a second voltage command circuit which calculates a second d-axis voltage command value and a second q-axis voltage command value using the vector phase .theta..sub.c and d-axis and q-axis current differences. By correcting the voltage command value using the second d-axis and second q-axis voltage command values, the stability of the current control system is improved. By controlling the electric vehicle using such a system, a stable current control can be attained even when the electric vehicle is driven under a regenerative running state or a weak magnetic field control state.

    摘要翻译: 在电动车辆的控制器中,电压电流相位差计算电路根据电压指令值和交流电动机的一次电流来计算向量相位θc。 矢量相位θc被输入到使用向量相位θc和d轴和q轴电流差计算第二d轴电压指令值和第二q轴电压指令值的第二电压指令电路。 通过使用第二d轴和第二q轴电压指令值校正电压指令值,提高了电流控制系统的稳定性。 通过使用这种系统控制电动车辆,即使在电动车辆在再生行驶状态或弱磁场控制状态下被驱动,也可以获得稳定的电流控制。

    Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle
    4.
    发明授权
    Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle 有权
    同步电机,电机控制器和电动车辆的励磁极位置估算方法

    公开(公告)号:US06320349B1

    公开(公告)日:2001-11-20

    申请号:US09371046

    申请日:1999-08-10

    IPC分类号: H02P528

    摘要: A power corresponding to an A/C voltage command id1* is applied in the d-axis direction of rotational coordinates of a stopped synchronous motor via a current control unit, a three-phase converting unit, and a power converter. Further, by using “an amplitude value of a current iq′ in the q-axis direction of the rotational coordinates generated in response to the A/C voltage command id1*” which is fed back and detected via a current detector and a dq converting unit, a field pole position estimation value &thgr;{circumflex over ( )} is converged. The field pole position is estimated by using the converged field pole position estimation value &thgr;{circumflex over ( )} as a true value of the field pole position &thgr; of the synchronous motor.

    摘要翻译: 通过电流控制单元,三相转换单元和功率转换器,在停止的同步电机的旋转坐标的d轴方向上施加与A / C电压指令id1 *相对应的功率。 此外,通过使用“响应于通过电流检测器反馈并检测的A / C电压指令id1 *”产生的旋转坐标的q轴方向上的电流iq的振幅值,以及dq转换 单位,场极位置估计值θ{circumflex over()}被收敛。 通过使用收敛场极点位置估计值θ{circumflex over()}来估计场极位置作为同步电动机的场极位置theta的真实值。

    Frequency dependent current control system for an AC motor
    5.
    发明授权
    Frequency dependent current control system for an AC motor 失效
    用于交流电机的频率相关电流控制系统

    公开(公告)号:US5841263A

    公开(公告)日:1998-11-24

    申请号:US859087

    申请日:1997-05-20

    摘要: In a method and apparatus for motor control in an electric vehicle, current feedback control from an AC motor is performed using a digital arithmetic unit. The motor control equipment includes a power converter having a maximum output frequency of at least 500 Hz for driving the AC motor, and the digital arithmetic unit outputs an AC voltage command to the power converter based on current feedback from the AC motor up to the maximum output frequency of the power converter. The digital arithmetic unit includes a first subtractor for calculating the deviation between a detected value and a command value for the d-axis current, and a second subtractor for calculating the deviation between a detected value and a command value for the q-axis current. A phase calculator calculates a d-axis phase corresponding to the resistance and reactance components of the impedance of the d-axis, and a q-axis phase corresponding to the resistance components of the impedance of the q-axis. A voltage control calculator calculates control signals for the d- and q-axis voltages, due to the d-axis current deviation and the q-axis current deviation, based on the d-axis phase and the q-axis phase. The AC voltage command is output to the power converter based on the d- and q- axis voltage control signals.

    摘要翻译: 在电动汽车的电动机控制方法和装置中,使用数字运算装置进行来自交流电动机的电流反馈控制。 所述电动机控制装置具有驱动所述交流电动机的最大输出频率为500Hz以上的功率转换器,所述数字运算单元根据来自所述交流电动机的电流反馈向所述功率变换器输出交流电压指令,直到最大值 功率转换器的输出频率。 数字运算单元包括:第一减法器,用于计算检测值与d轴电流的指令值之间的偏差;以及第二减法器,用于计算检测值与q轴电流的指令值之间的偏差。 相位计算器计算与d轴的阻抗的电阻和电抗分量相对应的d轴相位和与q轴的阻抗的电阻分量相对应的q轴相位。 基于d轴相位和q轴相位,由于d轴电流偏差和q轴电流偏差,电压控制计算器计算d轴和q轴电压的控制信号。 交流电压指令根据d轴和q轴电压控制信号输出到功率转换器。

    Electric vehicle control device
    7.
    发明授权
    Electric vehicle control device 失效
    电动车控制装置

    公开(公告)号:US5309073A

    公开(公告)日:1994-05-03

    申请号:US963765

    申请日:1992-10-20

    IPC分类号: B60L3/00 B60L11/18 H02J11/00

    摘要: An electric vehicle control device is disclosed, which includes an AC motor for driving a vehicle; a main electric power conversion unit for supplying an AC voltage to the AC motor; a battery for supplying a DC voltage to the main electric power conversion unit; an auxiliary electric power conversion unit connected to the battery and adapted to be connected to a load or a power supply; a controller for controlling the main and auxiliary electric power conversion units so as to act selectively as an inverter or a converter; and a switching unit for giving selectively the AC motor the AC voltage from the main and auxiliary electric power conversion units under control of the controller. In the running mode of the electric vehicle, the controller described above makes the main electric power conversion unit act as an inverter and controls the switching unit so that the AC voltage from the main electric power conversion unit is given to the AC motor. Further, responding to detection of a failure of the main electric power conversion unit, the controller makes the auxiliary electric power conversion unit act as an inverter and controls the switching unit so that the AC voltage from the auxiliary electric power conversion unit is given to the AC motor.

    摘要翻译: 公开了一种电动车辆控制装置,其包括用于驱动车辆的AC电动机; 主电力转换单元,用于向AC电动机提供AC电压; 用于向主电力转换单元提供直流电压的电池; 连接到电池并适于连接到负载或电源的辅助电力转换单元; 用于控制主电力转换单元和辅助电力转换单元以便选择性地作为逆变器或转换器的控制器; 以及开关单元,用于在所述控制器的控制下选择性地给所述AC电动机提供来自所述主电力转换单元和所述辅助电力转换单元的AC电压。 在电动车辆的运行模式中,上述控制器使得主电力转换单元作为逆变器,并且控制开关单元,使得来自主电力转换单元的AC电压被给予AC电动机。 此外,响应于主电力转换单元的故障的检测,控制器使辅助电力转换单元充当逆变器,并控制开关单元,使得来自辅助电力转换单元的AC电压被给予 交流电机。

    Motor control device
    9.
    发明授权
    Motor control device 有权
    电机控制装置

    公开(公告)号:US06555988B2

    公开(公告)日:2003-04-29

    申请号:US09726595

    申请日:2000-12-01

    IPC分类号: H02P618

    CPC分类号: H02P6/182 H02P6/18 H02P25/089

    摘要: In an arrangement having an electric power inverter 2 which applies a voltage to an AC motor 1 and a control unit 4 which calculates a voltage command value applied in PWM signals, detection use voltages Vup, Vvp and Vwp are applied in synchronism with PWM signal generation use carrier waves in the control unit 4 as well as motor currents iv and iv are detected in response to current detection pulses Pd in synchronism therewith. In a magnetic pole position detection unit 12, counter electromotive forces of the synchronous motor 1 are estimated from a relationship between the detection use voltages Vup, Vvp and Vwp and current difference vectors of the motor current to determine a magnetic pole position &thgr; through calculation. The determined magnetic pole position &thgr; is inputted to coordinate conversion units 8 and 11 and a motor speed detection unit 13. Thereby, a motor control device having a control characteristic of a good response property with no magnetic pole position sensor is provided for a control system of a synchronous motor.

    摘要翻译: 在具有向交流电动机1施加电压的电力逆变器2和计算施加在PWM信号中的电压指令值的控制单元4的布置中,与PWM信号生成同步地施加检测用电压Vup,Vvp和Vwp 响应于与其同步的电流检测脉冲Pd,检测控制单元4中的载波以及电动机电流iv和iv。 在磁极位置检测单元12中,根据检测用电压Vup,Vvp和Vwp之间的关系以及电动机电流的电流差矢量来估计同步电动机1的反电动势,以通过计算来确定磁极位置θ。 将确定的磁极位置θ输入到坐标转换单元8和11以及电动机速度检测单元13.由此,提供具有无磁极位置传感器的良好响应特性的控制特性的电动机控制装置用于控制系统 的同步电机。

    Control system and control method for electric automobile
    10.
    发明授权
    Control system and control method for electric automobile 失效
    电动汽车控制系统及控制方法

    公开(公告)号:US5677604A

    公开(公告)日:1997-10-14

    申请号:US225297

    申请日:1994-04-08

    摘要: This invention aims to realize a superior control system for electric automobile, wherein the current can be accurately controlled according to the state of the automobile and yet high driving performance and charging performance can be achieved. When in the drive mode of the automobile, the system detects the current for drive using the current detector, controls the current of the inverter, and drives the induction motor. When in the charge mode, the system detects the current for charge using the current detector, controls the inverter, and charges the battery with the current from an external power supply. The intensity of the current differs by several times when driving and when charging, but the current detection range of the current detector for drive is wider than the current detection range of the current detector for charge. Therefore, the system detects higher current very accurately when driving and detects lower current very accurately when charging. Either when a charge control is required or when a motor drive control is required, the system can perform accurate current control suitable for each current control range requirement, thereby allowing highly efficient charge control with less noise.

    摘要翻译: 本发明旨在实现电动汽车的优越控制系统,其中可以根据汽车的状态精确地控制电流,并且可以实现高驱动性能和充电性能。 当在汽车的驱动模式下,系统使用电流检测器检测驱动电流,控制变频器的电流,并驱动感应电动机。 在充电模式下,系统使用电流检测器检测充电电流,控制逆变器,并用外部电源的电流对电池充电。 当驱动和充电时,电流强度不同,但驱动电流检测器的电流检测范围大于电流检测器的电流检测范围。 因此,当驱动时,系统检测到较高的电流,并且在充电时能够非常精确地检测到较低的电流。 当需要充电控制或需要电机驱动控制时,系统可以执行适合于每个电流控制范围要求的精确电流控制,从而允许具有较小噪声的高效充电控制。