Rotary electric apparatus having rotor with field winding inducing current therethrough for generating magnetic field
    3.
    发明授权
    Rotary electric apparatus having rotor with field winding inducing current therethrough for generating magnetic field 有权
    具有转子的旋转电器,其具有通过其产生磁场的电流的励磁电流

    公开(公告)号:US07880424B2

    公开(公告)日:2011-02-01

    申请号:US11905162

    申请日:2007-09-27

    申请人: Masahiro Seguchi

    发明人: Masahiro Seguchi

    IPC分类号: H02P6/10 H02P7/298 H02P27/08

    摘要: A rotary electric apparatus comprise a synchronous machine of field winding type, an inverter, a DC power supply, a current flow regulator, and a controller. The DC power supply outputs first voltage of a first voltage value and second voltage of a second voltage value higher than the first voltage value. The current flow regulator regulates directions of currents flowing through a field winding by rotor exciting currents into one way, the current flow regulator being electrically connected to the field winding. The controller controls the inverter such that the inverter produces armature currents consisting of synchronized currents producing rotating fields depending on a rotating position of a rotor and rotor exciting currents different in waveforms from the synchronized currents and superposed on the synchronized currents. At least the rotor exciting currents are powered on a second voltage from the DC power supply.

    摘要翻译: 旋转电气设备包括励磁绕组类型的同步电机,逆变器,直流电源,电流调节器和控制器。 直流电源输出第一电压值的第一电压和高于第一电压值的第二电压值的第二电压。 电流流量调节器通过转子励磁电流调节流过励磁绕组的电流的方向,电流流量调节器电连接到励磁绕组。 控制器控制逆变器,使得逆变器产生由同步电流组成的电枢电流,该同步电流根据转子的旋转位置和与同步电流波形不同的叠加在同步电流上的转子激励电流产生旋转磁场。 至少转子励磁电流通过来自直流电源的第二电压供电。

    VARIABLE MAGNETIC FLUX ELECTRIC ROTARY MACHINE
    4.
    发明申请
    VARIABLE MAGNETIC FLUX ELECTRIC ROTARY MACHINE 审中-公开
    可变磁通电动机

    公开(公告)号:US20100164422A1

    公开(公告)日:2010-07-01

    申请号:US12645854

    申请日:2009-12-23

    IPC分类号: H02K23/44 H02P7/298

    摘要: An electric rotary machine is disclosed which can adjust relative angles of sub-rotors continuously and regardless of torque direction without generating an attractive force between the field magnets of the sub-rotors. The electric rotary machine includes: a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying the axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor.

    摘要翻译: 公开了一种能够连续地调节副转子的相对角度并且不管转矩方向如何,而不会在副转子的场磁体之间产生吸引力的电动旋转机。 旋转电机包括:具有绕组的定子; 双转子,其以定子的间隙可旋转地设置并沿着轴轴向分为第一转子和第二转子,每个转子各自具有沿旋转方向交替排列的具有不同极性的场磁体; 连续地改变第二转子相对于第一转子的轴向位置的机构; 以及位于所述第一转子和所述第二转子之间的非磁性构件。

    Field-winding type of synchronous machine
    5.
    发明授权
    Field-winding type of synchronous machine 有权
    励磁绕组式同步电机

    公开(公告)号:US07358698B2

    公开(公告)日:2008-04-15

    申请号:US11476200

    申请日:2006-06-28

    IPC分类号: H02P6/10 H02P7/298 H02P27/08

    摘要: A field-winding type of synchronous machine comprises a stator with an armature winding wound phase by phase, a rotor having a rotor core with a field winding wound, and a circuit enabling an armature current to pass the armature winding, the armature current corresponding to a synchronous current producing a rotation field rotating at an electrical-angle rotation speed agreeing to a rotation speed of the rotor. The synchronous machine further comprises a current suppressor and a current supplier. The current suppressor is connected to the field winging and suppresses, into a unidirectional current, an induced alternating current induced through the field winding in response to the armature current passing the armature winding. The current supplier supplies, phase by phase, to the armature winding a rotor exciting current whose waveform is different from the synchronous current only during a predetermined period of time shorter than one cycle of the synchronous current.

    摘要翻译: 励磁绕组式同步电机包括具有相绕相绕组的电枢绕组的定子,具有缠绕励磁绕组的转子铁心的转子和使电枢电流通过电枢绕组的电路,对应于 产生以与转子的转速一致的电角度旋转的旋转场的同步电流。 同步电机还包括电流抑制器和电流供应器。 电流抑制器连接到励磁绕组,并且响应于通过电枢绕组的电枢电流,将通过励磁绕组感应的感应交流电流抑制成单向电流。 目前的供应商仅在比同步电流的一个周期短的预定时间段内逐个向电枢绕组提供波形不同于同步电流的转子励磁电流。

    Control apparatus for electric actuator
    6.
    发明申请
    Control apparatus for electric actuator 有权
    电动执行器控制装置

    公开(公告)号:US20050116674A1

    公开(公告)日:2005-06-02

    申请号:US10945907

    申请日:2004-09-22

    摘要: A driver for an electric actuator comprises a direction-switching means which switches a direction of rotation of a rotary driving source based on a direction instruction input signal, a current amplifier/limiter which converts a voltage outputted from the direction-switching means into a corresponding current and which limits the current with reference to a preset reference current IMAX or a threshold value, a current sensor which detects the current supplied to the rotary driving source, and a current loop by which a detection signal from the current sensor is fed back to an upstream side of the current amplifier/limiter.

    摘要翻译: 电动执行器的驱动器包括:方向切换装置,其基于方向指令输入信号切换旋转驱动源的旋转方向;电流放大器/限幅器,其将从方向切换装置输出的电压转换为相应的 电流,并且参考预设的参考电流I MAX MAX或阈值来限制电流,检测提供给旋转驱动源的电流的电流传感器以及检测信号 从电流传感器反馈到电流放大器/限幅器的上游侧。

    Method and apparatus for controlling the braking of a printing machine
    7.
    发明授权
    Method and apparatus for controlling the braking of a printing machine 失效
    用于控制印刷机制动的方法和装置

    公开(公告)号:US5524541A

    公开(公告)日:1996-06-11

    申请号:US421898

    申请日:1995-04-14

    CPC分类号: H02P3/04 B41F13/0045

    摘要: A description of a method and a device for monitoring the braking of a D.C. motor of a printing machine such as a sheet-fed offset printing machine is given. For safety purposes, in the case of an emergency stop an electrical braking should always be carried out with the maximum torque of the D.C. motor. For this purpose, the disclosed method provides that the actual value of the armature current is detected and compared to a maximum permissible value for the electrical braking. In the event of an impermissibly high deviation and, in particular, in the event of an undershoot of the armature current relative to the maximum permissible value, the power converter and motor are disconnected from the power supply and an electrically actuable brake is applied to the motor.

    摘要翻译: 给出了一种用于监测印刷机例如单张胶印机的直流电动机的制动方法和装置的描述。 为了安全起见,在紧急情况下,应始终以直流电动机的最大扭矩进行电气制动。 为此,所公开的方法提供了检测电枢电流的实际值并将其与电制动的最大允许值进行比较。 在不允许的高偏差的情况下,特别是在电枢电流相对于最大允许值的下冲的情况下,功率转换器和电动机与电源断开,并且电致动的制动器被施加到 发动机。

    Low current compensation control for thyristor armature power supply
    8.
    发明授权
    Low current compensation control for thyristor armature power supply 失效
    晶闸管电枢电源的低电流补偿控制

    公开(公告)号:US5451846A

    公开(公告)日:1995-09-19

    申请号:US166743

    申请日:1993-12-14

    IPC分类号: H02P5/68 H02P7/298 H02P3/20

    摘要: A control system for energizing a direct current (DC) motor with alternating current (AC) power includes a first voltage sensor for a peak voltage of AC power; a second voltage sensor for a counter electromotive force (EMF) of the motor; a current sensor for an armature current of the motor; a digital processor having a first current controller responding to sensed armature current and a current reference, a cooperating second current controller responding to sensed peak voltage, sensed counter EMF and the current reference signal, and a gating circuit responding to the controllers; and a thyristor converter circuit sequentially gating portions of half cycles of AC power to the motor in response to firing signals from the gating circuit. The controllers may control a gate angle of the firing signals, the control system may include a third voltage sensor for a terminal voltage of the motor, and the armature current may have discontinuous and continuous waveforms. The processor may calculate a start of continuous current value which is a function of a calculated peak voltage of the AC power and a calculated counter EMF of the motor. The calculated counter EMF is sensed when an absolute value of sensed armature current is less than the start of continuous current value but, otherwise, the calculated counter EMF is related to motor terminal voltage. The calculated peak voltage of AC power is an average of an absolute value of a peak positive sensed voltage and an absolute value of a peak negative voltage under calculated discontinuous current conditions but, otherwise, the calculated peak voltage is the average plus a calculated commutation notch line voltage loss. The calculated commutation notch line voltage loss may be a function of the gate angle, the sensed armature current and the calculated peak voltage. The gate angle may be a sum of gate angles from the two controllers.

    摘要翻译: 用于对具有交流(AC)功率的直流(DC)电动机通电的控制系统包括用于AC电力的峰值电压的第一电压传感器; 用于电动机的反电动势(EMF)的第二电压传感器; 用于电动机的电枢电流的电流传感器; 数字处理器,其具有响应感测的电枢电流和电流参考的第一电流控制器,响应于感测的峰值电压的协作的第二电流控制器,感测到的计数器EMF和当前参考信号,以及响应于控制器的门控电路; 以及晶闸管转换器电路,响应于来自所述选通电路的触发信号,顺序地将部分半周期的交流电力门控给所述电动机。 控制器可以控制点火信号的门角,控制系统可以包括用于电动机的端子电压的第三电压传感器,并且电枢电流可以具有不连续和连续的波形。 处理器可以计算连续电流值的开始,其是计算的交流电力的峰值电压和计算的电动机的计数器EMF的函数的函数。 当感测到的电枢电流的绝对值小于连续电流值的开始时,计算出的计数器EMF被检测到,否则计算的计数器EMF与电动机端子电压有关。 计算出的交流电力峰值电压是计算的不连续电流条件下峰值正感测电压的绝对值和峰值负电压的绝对值的平均值,否则计算的峰值电压是平均加上计算出的换向槽口 线路电压损失。 计算的换向陷波线电压损耗可以是门角,感测的电枢电流和计算出的峰值电压的函数。 门角可以是来自两个控制器的门角的总和。

    Motor control
    9.
    发明授权
    Motor control 失效
    电机控制

    公开(公告)号:US5014336A

    公开(公告)日:1991-05-07

    申请号:US478734

    申请日:1990-02-09

    IPC分类号: H02P7/298 H02P23/20

    CPC分类号: H02P7/2985 H02P23/20

    摘要: In a shunt wound d.c. motor for driving centrifuges, an apparatus for obtaining smooth acceleration by regulating the bottom speed range in accordance to a preset slope current and then accelerating the armature current with full excitation. Smooth braking is also achieved by applying to the field current the full excitation during deceleration and a preset slope current thereafter.

    摘要翻译: 在分流伤口d.c. 用于驱动离心机的电机,通过根据预设的斜率电流调节底部速度范围然后以全激励来加速电枢电流来获得平滑加速的装置。 通过在励磁电流下施加减速时的全激励,此后也可以设定预设的斜率电流来实现平滑制动。

    Device for controlling the field current of DC motors
    10.
    发明授权
    Device for controlling the field current of DC motors 失效
    用于控制直流电机励磁电流的装置

    公开(公告)号:US4845413A

    公开(公告)日:1989-07-04

    申请号:US163263

    申请日:1988-03-02

    IPC分类号: H02P7/298

    CPC分类号: H02P7/2985

    摘要: A device for controlling the field current of a DC motor supplied from an AC network and which is operated beyond the normal speed of the DC motor in the higher speed range obtainable by weakening of the field of the DC motor, there being provided for the apportioning of the field current of the DC motor a phase angle control circuit which is operated depending on a control variable obtained from the respective measured speed of the DC motor by a function-forming device as a function of the speed, the function-forming device comprising a function memory which contains values of the control variable correlated to individual speed values stored in a matrix in tabulated form, the correlation of these values individually corresponding to the DC motor being established when the DC motor starts up for the first time, and where a constant dependence of the control variable on the speed is established either by a polygonal line obtained by linear interpolation from the value pairs stored in tabulated form or by a curve optimally approximated to these value pairs.

    摘要翻译: 一种用于控制从AC网络提供的直流电动机的励磁电流的装置,该直流电动机在通过弱电直流电动机可获得的较高速度范围内运行超过直流电动机的正常速度,提供分配 所述直流电动机的励磁电流根据作为速度的函数形成装置的由所述直流电动机的各自的测量速度获得的控制变量而操作的相位角控制电路,所述功能形成装置包括: 功能存储器,其包含与以表格形式存储在矩阵中的各个速度值相关联的控制变量的值,在直流电动机首次启动时,直接电动机分别对应的这些值的相关性,以及其中 通过从存储在ta中的值对的线性插值获得的折线来建立控制变量对速度的常数依赖性 曲线形式或最佳近似于这些值对的曲线。