Control apparatus and control method for motor drive vehicle
    4.
    发明授权
    Control apparatus and control method for motor drive vehicle 失效
    电机驱动车辆控制装置及控制方法

    公开(公告)号:US5355749A

    公开(公告)日:1994-10-18

    申请号:US992112

    申请日:1992-12-17

    摘要: A control apparatus of a motor drive vehicle includes a unit for generating a target vehicle speed; a speed instruction unit for generating a target motor rotational speed of the motor based upon a preset motor control pattern in response to the target vehicle speed; a power circuit for operating the motor at the target motor rotational speed upon receipt of the target motor rotational speed; a variable transmission unit for converting a drive output from the motor into a transmission ratio for instructing a rotational speed of the drive output, and transferring the converted transmission ratio to a drive shaft of the motor drive vehicle; and a transmission ratio calculating unit for determining the transmission gear ratio based on the target vehicle speed and the target motor rotational speed thereby to instruct the determined transmission gear ratio to the variable transmission unit. A control method sets a target vehicle speed value; produces a target motor rotational speed based upon the target vehicle speed value and a preset motor control pattern; operates the motor at the target motor rotational speed; determines a transmission gear ratio based upon both of the target vehicle speed and the target motor rotational speed; and converts a rotational speed of a drive output into the transmission ratio and transfers the converted transmission ratio to a drive shaft.

    摘要翻译: 电机驱动车辆的控制装置包括用于产生目标车速的单元; 速度指令单元,用于响应于目标车速,基于预设的电动机控制模式产生电动机的目标电动机转速; 用于在接收到目标电动机转速时以目标电动机转速操作电动机的电源电路; 可变传动单元,用于将从马达输出的驱动转换为用于指示驱动输出的转速的传动比,并将转换的传动比转移到马达驱动车辆的驱动轴; 以及传动比计算单元,用于基于目标车速和目标电动机转速来确定变速比,从而指示所确定的变速传动比与可变传动单元。 控制方法设定目标车速值; 基于目标车速值和预设的电动机控制模式产生目标电动机转速; 以目标电机转速运转电机; 基于目标车速和目标电动机转速两者确定变速比; 并将驱动输出的转速转换为变速比,并将变换后的变速比传递给驱动轴。

    Electric vehicle control system
    5.
    发明授权
    Electric vehicle control system 失效
    电动车控制系统

    公开(公告)号:US5414339A

    公开(公告)日:1995-05-09

    申请号:US122295

    申请日:1993-09-17

    摘要: An electric vehicle control system for driving a battery powered motor with use of power inverters. First and second inverters are connected with the respective three-phase primary windings of an induction motor. If one of the inverters fails, failure detection circuits detect it, and a control unit stops the failed inverter and allows the other normal inverter to drive the induction motor to move the electric vehicle. Driving the single motor with a plurality of power inverters allows the electric vehicle to move and run even if one of the power inverters fails.

    摘要翻译: 一种电动车辆控制系统,用于使用电力逆变器驱动电池供电的电动机。 第一和第二逆变器与感应电动机的相应的三相初级绕组连接。 如果其中一台逆变器发生故障,故障检测电路就会检测到故障,控制单元停止变频器故障,并允许其他正常变频器驱动异步电动机来移动电动车辆。 使用多个电力逆变器驱动单个电动机允许电动车辆即使其中一个电力逆变器故障也移动和运行。

    INDUCTION MOTOR CONTROLLER
    6.
    发明申请
    INDUCTION MOTOR CONTROLLER 有权
    感应电动机控制器

    公开(公告)号:US20080169783A1

    公开(公告)日:2008-07-17

    申请号:US11843686

    申请日:2007-08-23

    IPC分类号: H02P27/08

    摘要: The present invention provides an induction motor controller which includes: a circuit for generating a d-axis current reference signal from a d-axis current command value and a periodically varying periodic signal; a d-axis current controller for controlling a d-axis motor current flowing through an induction motor to be controlled to match the d-axis current reference signal; parameter determining means for calculating and determining a motor parameter of the induction motor based on a deviation of the d-axis motor current from the d-axis current reference signal, and controlling a voltage applied to the induction motor using a compensation voltage calculated from the calculated and determined motor parameter, in which a control parameter for controlling the induction motor is set based on the calculated and determined motor parameter.

    摘要翻译: 本发明提供一种感应电动机控制器,其包括:用于根据d轴电流指令值和周期性变化的周期信号产生d轴电流参考信号的电路; d轴电流控制器,用于控制流过感应电动机的d轴电动机电流以被控制以匹配d轴电流参考信号; 参数确定装置,用于基于d轴电动机电流与d轴电流参考信号的偏差来计算和确定感应电动机的电动机参数,并且使用从所述d轴电流参考信号计算的补偿电压来控制施加到感应电动机的电压 计算和确定的电动机参数,其中基于所计算和确定的电动机参数来设定用于控制感应电动机的控制参数。

    Machine tool
    7.
    发明授权
    Machine tool 失效
    机床

    公开(公告)号:US06841911B2

    公开(公告)日:2005-01-11

    申请号:US10083531

    申请日:2002-02-27

    CPC分类号: H02K16/02 H02K7/12

    摘要: A machine tool provided with an electric motor which can maintain the fixed output power in a wide speed range. The electric motor has a stator having a primary winding, and a rotor having a field magnet and a shaft, said field magnet comprising a first field magnet having different polarity magnetic poles sequentially arranged in a rotating direction and a second field magnet having different polarity magnetic poles sequentially arranged in a rotating direction, and a mechanism for shifting one field magnet in axial and rotating directions with respect to the other field magnet, whereby a composite magnetic field of said first and said second field magnets is changed.

    摘要翻译: 一种具有能够在宽的速度范围内保持固定输出功率的电动机的机床。 电动机具有初级绕组的定子和具有场磁体和轴的转子,所述磁场磁体包括顺序地沿旋转方向排列的极性不同的磁极的第一场磁体和具有不同极性磁性的第二磁场磁体 依次布置在旋转方向的磁极和用于相对于另一个磁场磁体沿轴向和旋转方向移动一个磁场磁体的机构,从而改变所述第一和第二磁场的复合磁场。

    Method for controlling a vehicle provided with an electric power converter
    8.
    发明授权
    Method for controlling a vehicle provided with an electric power converter 失效
    用于控制设置有电力转换器的车辆的方法

    公开(公告)号:US06556460B2

    公开(公告)日:2003-04-29

    申请号:US10212841

    申请日:2002-08-07

    IPC分类号: H02M114

    CPC分类号: H02M1/143

    摘要: The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.

    摘要翻译: 施加到功率转换器的电压由电压检测器检测,功能发生器产生与该检测电压成比例的电压,高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压,加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较,并且根据比较结果控制开关元件进行开关操作。 当通过AC分量减小DC电流时,电阻电流Ib增加,从而可以消除叠加在电流和电阻电流上的AC分量。

    Method and apparatus for operating a variable speed power generation
system
    9.
    发明授权
    Method and apparatus for operating a variable speed power generation system 失效
    用于操作变速发电系统的方法和装置

    公开(公告)号:US5029288A

    公开(公告)日:1991-07-02

    申请号:US340681

    申请日:1989-04-20

    CPC分类号: H02P9/42 H02P9/007

    摘要: A method and apparatus for operating a variable speed power generation system in which the generated output of an induction generator is adjusted by controlling current in the secondary side of the induction generator. Rotation speeds of the induction generator coupled to a prime mover are detected, a secondary current command for controlling a difference between a detected rotation speed and a speed command to be zero is generated, and current in the secondary side of the induction generator is controlled on the basis of the secondary current command. In addition, the generated output of the induction generator is sequentially detected in order that a command value of the speed command is sequentially changed when a detected generated output shows a tendency to increase and, when a detected generated output shifts from an increasing tendency to a decreasing tendency, the command value of the speed command is once changed to a lower speed value and thereafter returned to a higher speed value, thereby maximizing efficiency of the variable speed power generation system and reducing costs.

    摘要翻译: 一种用于操作变速发电系统的方法和装置,其中通过控制感应发电机的次级侧的电流来调节感应发电机的产生的输出。 检测到耦合到原动机的感应发电机的转速,产生用于将检测到的转速和速度指令之间的差异控制为零的二次电流指令,将感应发电机次级侧的电流控制在 二次电流指令的基础。 此外,感应发电机的产生的输出被顺序地检测,以便当检测到的产生的输出显示出增加的趋势时,速度指令的指令值被顺序地改变,并且当检测到的产生的输出从增加趋势转移到 速度指令的指令值一度改变为较低速度值,然后返回到较高速度值,从而使变速发电系统的效率最大化并降低成本。

    Variable speed rotary electric machine
    10.
    发明授权
    Variable speed rotary electric machine 失效
    变速旋转电机

    公开(公告)号:US4503377A

    公开(公告)日:1985-03-05

    申请号:US568264

    申请日:1984-01-04

    摘要: A variable speed rotary electric machine comprises a stator composed of a stator core and first and second stator windings wound on the stator core, and a cage rotor mounted rotatably within the stator and composed of a rotor core and rotor conductor disposed in a squirrel-cage configuration. The first stator winding is connected to an AC power supply of a fixed frequency. The second stator winding is connected to a power supply of a variable frequency. The first and second stator windings are so wound as to form, respectively, numbers of poles differing from each other. The rotor conductors of the cage rotor are electromagnetically coupled with the magnetic flux generated by the first and second stator windings, respectively, and so disposed as to form a number of poles which is intermediate between the number of the poles formed by the first stator winding and the number of poles formed by said second stator winding.

    摘要翻译: 一种变速旋转电机,包括定子铁心和缠绕在定子铁芯上的第一和第二定子绕组构成的定子,以及可转动地安装在定子内的保持架转子,该转子铁心和转子导体由鼠笼 组态。 第一定子绕组连接到固定频率的交流电源。 第二定子绕组连接到可变频率的电源。 第一和第二定子绕组被缠绕成分别形成彼此不同的极数。 保持架转子的转子导体分别与由第一和第二定子绕组产生的磁通电磁耦合,并被设置成形成多个极,该极数介于由第一定子绕组形成的极数之间 以及由所述第二定子绕组形成的极数。