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    Apparatus and method for controlling drive of three-phase multiplex winding motor
    15.
    发明授权
    Apparatus and method for controlling drive of three-phase multiplex winding motor 有权
    用于控制三相多路绕组电机驱动的装置和方法

    公开(公告)号：US6107774A

    公开(公告)日：2000-08-22

    申请号：US266588

    申请日：1999-03-11

    申请人： Tetsuo Yamada ,  Takayuki Mizuno

    发明人： Tetsuo Yamada ,  Takayuki Mizuno

    IPC分类号： H02P27/06 ,  H02P21/08 ,  H02P25/26 ,  H02P5/28

    CPC分类号： H02P21/08 ,  H02P25/26

    摘要： In vector control apparatus and method for a three-phase multiplex winding motor, a plurality of inverters are installed, each inverter operatively driving a corresponding one of multiplex windings of the motor and a plurality of inverter controllers are installed whose number corresponds to that of the inverters. Each controller includes: a decoupling voltage calculator for calculating d-axis and q-axis voltage setting values V.sub.1 d* and V.sub.1 q* on the basis of an excitation instruction value Io*, a torque instruction value I.sub.T *, d-axis-and-q-axis current instruction values i.sub.1 d* and i.sub.1 q* which are quotients of the excitation instruction value Io* and the torque instruction value I.sub.T * divided respectively by the multiplex number N of the windings of the motor, and a power supply frequency .omega. which is an addition of a slip frequency .omega.s to a rotor revolution frequency .omega.r; a d-axis-and-q-axis current controller for performing P-I calculations for respective deviations between d-axis current instruction value i.sub.1 d* and its detected value i.sub.1 d and between q-axis current instruction value i.sub.1 q* and its detected value i.sub.1 q so as to derive d-axis and q-axis voltage errors .DELTA.V.sub.1 d and .DELTA.V.sub.1 q ; and a plurality of PWM circuits, each receiving d-axis and q-axis voltages V.sub.1 d and V.sub.1 q as d-axis and d-axis voltage instructions and generating and outputting gate signals to the corresponding one of the inverters, the d-axis and d-axis voltages being respective additions of the d-axis and q-axis voltage setting values V.sub.1 d* and V.sub.1 q* to the d-axis-and-q-axis voltage errors .DELTA.V.sub.1 d and .DELTA.V.sub.1 q.

    摘要翻译： 在用于三相多路复用绕组电动机的矢量控制装置和方法中，安装有多个逆变器，每个逆变器可操作地驱动电动机的相应一个多路绕组，并且安装多个逆变器控制器，其数量对应于 逆变器。 每个控制器包括：去耦电压计算器，用于基于激励指令值Io *，转矩指令值IT *，d轴和q来计算d轴和q轴电压设定值V1d *和V1q * 作为分别由电动机的绕组的多路复用数N划分的激励指令值Io *和转矩指令值IT *的商的电流指令值i1d *和i1q *以及作为电动机的电源频率ω 将转差频率ω加到转子转速ωr上; d轴和q轴电流控制器，用于对d轴电流指令值i1d *和其检测值i1d之间以及q轴电流指令值i1q *和其检测值i1q之间的各个偏差执行PI计算，以便 导出d轴和q轴电压误差DELTA V1d和DELTA V1q; 以及多个PWM电路，其分别接收d轴和q轴电压V1d和V1q作为d轴和d轴电压指令，并将栅极信号产生并输出到相应的一个反相器，d轴和d 轴电压分别是d轴和q轴电压设定值V1d *和V1q *与d轴和q轴电压误差DELTA V1d和DELTA V1q的相加。

    Mining machine
    16.
    发明授权
    Mining machine 失效
    采矿机

    公开(公告)号：US4140951A

    公开(公告)日：1979-02-20

    申请号：US833671

    申请日：1977-09-15

    申请人： Paul Greenhough

    发明人： Paul Greenhough

    IPC分类号： E21C29/00 ,  E21C31/02 ,  H02P25/26 ,  H02P7/62

    CPC分类号： H02P25/26 ,  E21C29/00 ,  E21C31/02

    摘要： A mining machine includes drive unit means for driving a haulage winch and a cutting tool of the machine, the drive unit means comprising a multi-phase induction motor with a wound rotor. In order to control the motor speed, the motor is provided with a circuit connected across the rotor windings and means for varying the effective impedance presented by the said circuit to the rotor windings.

    摘要翻译： 采矿机包括用于驱动牵引绞盘和机器的切割工具的驱动单元装置，所述驱动单元装置包括具有绕线转子的多相感应电动机。 为了控制电动机速度，电动机设置有连接在转子绕组两端的电路和用于将由所述电路呈现的有效阻抗改变到转子绕组的装置。

    Alternating current motor system
    17.
    发明授权
    Alternating current motor system 失效
    交流电机系统

    公开(公告)号：US3969659A

    公开(公告)日：1976-07-13

    申请号：US533044

    申请日：1974-12-16

    申请人： Herbert W. Thode

    发明人： Herbert W. Thode

    IPC分类号： H02P25/26 ,  H02P7/62

    CPC分类号： H02P25/26

    摘要： A system including an alternating current electric motor of the wound rotor type wherein the speed of the motor is controlled and its starting current is limited, is disclosed. A plurality of phase regulated SCR devices control the amount of resistance in the rotor winding circuits. A control voltage representing the difference between a desired motor speed and the actual motor shaft speed is supplied to an analog to digital converter which produces a multi-bit digital signal which controls the SCR devices so as to control rotor current in incremental steps. A vernier control signal is obtained by converting the digital signals back into analog form and comparing the control signal with the converted analog signal through the use of a difference amplifier circuit in a vernier amplifier. During start up, when the motor is brought up to speed and until the motor speed is close to the predetermined speed, the digital signal from the analog to digital converter is inhibited causing the SCR-resistor current paths in the rotor winding circuits to become open circuited. Another SCR-resistor vernier path which is connected to the rotor windings is operated by the vernier control signal to control the rotor current so as to provide for smooth low current starts as well as to control current in the rotor windings between the digitally controlled incremental steps.

    摘要翻译： 公开了一种包括绕线转子型交流电动机的系统，其中电动机的速度被控制并且其起动电流被限制。 多个相位调节SCR器件控制转子绕组电路中的电阻量。 表示期望电动机速度与实际电动机轴速度之间的差的控制电压被提供给模数转换器，该模数转换器产生控制SCR装置的多位数字信号，以便以递增的步骤控制转子电流。 通过将数字信号转换为模拟形式并通过使用游标放大器中的差分放大器电路将控制信号与转换的模拟信号进行比较来获得游标控制信号。 在启动期间，当马达达到速度并且直到电机速度接近预定速度时，来自模数转换器的数字信号被禁止，导致转子绕组电路中的SCR电阻电流路径变得开放 电路 连接到转子绕组的另一个SCR电阻游标路径通过游标控制信号进行操作，以控制转子电流，以便提供平滑的低电流启动以及控制数字控制的增量步骤之间的转子绕组中的电流 。

    Flux amplifier circuits for controlling induction motors and the like
    18.
    发明授权
    Flux amplifier circuits for controlling induction motors and the like 失效
    用于控制感应电机的通路放大器电路和类似的

    公开(公告)号：US3763413A

    公开(公告)日：1973-10-02

    申请号：US3763413D

    申请日：1972-02-11

    申请人： WATTENBARGER J

    发明人： WATTENBARGER J

    IPC分类号： H02P25/26 ,  H02P27/02 ,  H02P7/14 ,  G05F3/04

    CPC分类号： H02P27/026 ,  H02P25/26

    摘要： An induction motor supplied from a source of sinusoidal alternating current is provided with stator windings and rotor windings. The primary coil of a flux amplifier is connected in circuit with one of the windings. The secondary coil of the amplifier is energized, either from the primary directly or from a separate source, with sinusoidal current at the same fundamental frequency of the current in the primary coil. Means are provided to vary the amplitude and/or phase of the secondary current in the secondary coil to effect corresponding reactance changes at the primary which in turn vary the voltage and current supplied to the motor. The primary and secondary coils are coupled by a magnetic circuit having characteristics that cause fluxes from the primary and secondary coils to be linearly combined with each other so that voltage and current at the motor is controlled without developing harmonics of the fundamental frequency.

    摘要翻译： 由正弦交流电源供电的感应电动机设有定子绕组和转子绕组。 磁通放大器的初级线圈与其中一个绕组电路连接。 放大器的次级线圈从初级直接或来自单独的源通电，正弦电流与初级线圈中的电流相同。 提供了用于改变次级线圈中的次级电流的幅度和/或相位的装置，以便在初级线圈处产生相应的电抗变化，从而改变提供给电动机的电压和电流。 初级线圈和次级线圈通过具有导致来自初级线圈和次级线圈的磁通彼此线性组合的特性的磁路耦合，从而控制电动机的电压和电流而不产生基频的谐波。