Vector controller for a permanent magnet motor and inverter module
    11.
    发明授权
    Vector controller for a permanent magnet motor and inverter module 有权
    用于永磁电机和逆变器模块的矢量控制器

    公开(公告)号:US07821223B2

    公开(公告)日:2010-10-26

    申请号:US11769802

    申请日:2007-06-28

    IPC分类号: H02P27/04

    CPC分类号: H02P21/16

    摘要: In a system in which current is detected in an inexpensive manner or in a system in which a position detector is omitted, the present invention provides a high-efficiency vector controller for a permanent magnet motor that can minimize current at the same torque even when there is setting error (R−R*) in resistance. Even when a current value commanded for the d-axis is set to zero, a virtual inductance value calculated from a detected q-axis current value is used for output voltage value calculation and phase error estimation calculation; so even if there is setting error (R−R*) in resistance, current can be minimized at the same torque and thereby the present invention can provide a high-efficiency vector controller for a permanent magnet motor.

    摘要翻译: 在廉价的方式检测电流的系统中,或省略了位置检测器的系统中,本发明提供了一种用于永磁电动机的高效率矢量控制器,即使在相同的转矩下也能使电流最小化 是电阻中的设定误差(R-R *)。 即使将d轴指定的电流值设定为零,也可以使用从检测出的q轴电流值算出的虚拟电感值进行输出电压值运算和相位误差估计计算。 因此,即使在电阻中存在设定误差(R-R *),也能够以相同的转矩使电流最小化,从而本发明能够提供用于永磁电动机的高效矢量控制器。

    Semiconductor Power Converter
    12.
    发明申请
    Semiconductor Power Converter 失效
    半导体电源转换器

    公开(公告)号:US20090058331A1

    公开(公告)日:2009-03-05

    申请号:US12193209

    申请日:2008-08-18

    IPC分类号: H02P23/00

    摘要: A semiconductor power converter includes a power converter for converting direct current to three-phase alternating current or vice versa; a means for detecting a current in an alternating current side of the power converter; a means for providing a current reference in the alternating current side of the power converter; a current controller for calculating a voltage reference in the alternating current side of the power converter to match the current reference and a value of the detected current; and a pulse width modulation means for controlling the power converter through pulse width modulation based on the voltage reference, wherein the current reference is used in place of the value of the detected current for at least one phase current among three phase currents in the alternating current side.

    摘要翻译: 半导体功率转换器包括用于将直流电流转换为三相交流电的功率转换器,反之亦然; 用于检测电力转换器的交流侧的电流的装置; 用于在电力转换器的交流侧提供电流基准的装置; 电流控制器,用于计算所述功率转换器的交流侧的电压参考以匹配所述电流基准和所述检测电流的值; 以及脉冲宽度调制装置,用于通过基于参考电压的脉冲宽度调制来控制功率转换器,其中使用电流参考来代替交流电流中的三相电流中的至少一相电流的检测电流的值 侧。

    VECTOR CONTROLLER FOR A PERMANENT MAGNET MOTOR AND INVERTER MODULE
    13.
    发明申请
    VECTOR CONTROLLER FOR A PERMANENT MAGNET MOTOR AND INVERTER MODULE 有权
    用于永磁电机和逆变器模块的矢量控制器

    公开(公告)号:US20080048606A1

    公开(公告)日:2008-02-28

    申请号:US11769802

    申请日:2007-06-28

    IPC分类号: H02P21/00

    CPC分类号: H02P21/16

    摘要: In a system in which current is detected in an inexpensive manner or in a system in which a position detector is omitted, the present invention provides a high-efficiency vector controller for a permanent magnet motor that can minimize current at the same torque even when there is setting error (R−R*) in resistance. Even when a current value commanded for the d-axis is set to zero, a virtual inductance value calculated from a detected q-axis current value is used for output voltage value calculation and phase error estimation calculation; so even if there is setting error (R−R*) in resistance, current can be minimized at the same torque and thereby the present invention can provide a high-efficiency vector controller for a permanent magnet motor.

    摘要翻译: 在廉价的方式检测电流的系统中,或省略了位置检测器的系统中,本发明提供了一种用于永磁电动机的高效率矢量控制器,即使在相同的转矩下也能使电流最小化 是电阻设定误差(RR *)。 即使将d轴指定的电流值设定为零,也可以使用从检测出的q轴电流值算出的虚拟电感值进行输出电压值运算和相位误差估计计算。 因此,即使在电阻中存在设定误差(R-R *),也能够以相同的转矩使电流最小化,从而本发明能够提供用于永磁电动机的高效矢量控制器。

    Synchronous motor driving apparatus
    14.
    发明授权
    Synchronous motor driving apparatus 有权
    同步电机驱动装置

    公开(公告)号:US07276876B2

    公开(公告)日:2007-10-02

    申请号:US11206211

    申请日:2005-08-18

    IPC分类号: H02P27/04

    摘要: A synchronous motor driving apparatus having a power converter which applies AC variable voltages having variable frequency to a synchronous motor includes a pulsating current application unit for applying pulsating current to the synchronous motor and a magnetic pole position presumption unit. The magnetic pole position presumption unit detects two current values ΔIdcp1 and ΔIdcp2 on the positive side and two current values ΔIdcn1 and ΔIdcn2 on the negative side of the pulsating current and presumes the magnetic pole position of the synchronous motor on the basis of difference between change rates of ΔIdcp1→ΔIdcp2 and ΔIdcp1→ΔIdcp2.

    摘要翻译: 具有向同步电动机施加可变频率的交流可变电压的电力转换器的同步电动机驱动装置包括用于向同步电动机施加脉动电流的脉动电流施加单元和磁极位置推定单元。 磁极位置推测单元在脉动电流的负侧检测正极侧的两个电流值DeltaIdcp 1和DeltaIdcp 2,并且在脉动电流的负侧检测两个电流值DeltaIdcn 1和DeltaIdcn 2,并且基于同步电动机的磁极位置 DeltaIdcp 1 - > DeltaIdcp 2和DeltaIdcp 1 - > DeltaIdcp 2的变化率之间的差异。

    Control system for permanent magnet synchronous motor and module
    15.
    发明申请
    Control system for permanent magnet synchronous motor and module 有权
    永磁同步电机和模块控制系统

    公开(公告)号:US20060055362A1

    公开(公告)日:2006-03-16

    申请号:US11205907

    申请日:2005-08-17

    IPC分类号: H02P6/00

    CPC分类号: H02P21/04 H02P21/26

    摘要: A vector control system for a permanent magnet synchronous motor, using a current control equivalent output value, a frequency instruction value, a current detection value, an inference phase error value, and a motor constant, identifies a motor resistance equivalent or a resistance setting error equivalent. Next, the vector control unit, using the identified value, corrects a set value R* equivalent of a voltage instruction calculation unit and a n inference phase error calculation unit. Thereby, a vector control system for a permanent magnet synchronous motor can realize a robust control characteristic for changing of a resistance constant of a motor in a low rotation speed area under position sensor-less control. Further, a vector control system for a permanent magnet synchronous motor can be applied in common in a system performing inexpensive current detection.

    摘要翻译: 用于永磁同步电动机的矢量控制系统使用电流控制等效输出值,频率指令值,电流检测值,推断相位误差值和电动机常数来识别电动机电阻等效或电阻设定误差 当量。 接下来,使用识别值的矢量控制单元校正电压指令计算单元和n推定相位误差计算单元的设定值R *等效值。 由此,用于永磁同步电动机的矢量控制系统可实现用于在无位置传感器控制下在低转速区域中改变电动机的电阻常数的鲁棒控制特性。 此外,用于永磁同步电动机的矢量控制系统可以在执行廉价电流检测的系统中普遍应用。

    Projector
    19.
    发明授权
    Projector 失效
    投影机

    公开(公告)号:US4213679A

    公开(公告)日:1980-07-22

    申请号:US882748

    申请日:1978-03-02

    CPC分类号: G03B21/43 G03B21/10 G03B21/30

    摘要: A motion picture projector in which projector mechanisms are incorporated in the body of a carrying case, the opening of which is covered by a panel structure on which a reel setting portion and an operation board are disposed. The panel structure is provided with a projection window through which a light beam from the projector mechanisms is projected. A cover attached to the case body by hinge means is provided in the inside thereof with a rear-projection screen assembly, which is adapted to engage the case body and to be supported in a predetermined angle together with the case cover when unfolded. A light beam from the projection window is reflected by a mirror disposed in the inside of the case cover so as to be projected on the screen assembly. A projector in accordance with the present invention is formed in a readily portable shape and has high versatility because films wound upon usual open-type reels are available. In addition, the projected image is easy to see because of the large screen size. A generally available attache case can be used instead of a specially designed case, and the use of such ready-made case results in a reduced manufacturing cost. High operation efficiency is also expected.

    摘要翻译: 一种电动投影机,其中投影机机构结合在便携箱的主体中,其开口由设置有卷轴设置部分和操作板的面板结构覆盖。 面板结构设置有投影窗口,来自投影机机构的光束通过该投影窗口投影。 通过铰链装置附接到壳体的盖在其内部设置有后投影屏幕组件,后投影屏幕组件适于接合壳体,并且在展开时与壳体盖一起被预定的角度支撑。 来自投影窗口的光束被布置在壳盖内侧的反射镜反射,以便突出在屏幕组件上。 根据本发明的投影仪形成为便于携带的形状,并且具有高通用性,因为卷绕在通常的开放式卷盘上的薄膜是可用的。 此外,由于屏幕尺寸较大,投影图像很容易看到。 可以使用通常可用的附件案例而不是专门设计的案例,并且使用这种现成的案例导致制造成本降低。 运行效率也很高。

    Air pressure information display system of vehicle tire
    20.
    发明授权
    Air pressure information display system of vehicle tire 有权
    汽车轮胎气压信息显示系统

    公开(公告)号:US08760279B2

    公开(公告)日:2014-06-24

    申请号:US10309326

    申请日:2002-12-04

    IPC分类号: B60C23/00

    CPC分类号: B60C23/0408

    摘要: In an air pressure information display system of a vehicle tire, a vehicle (1) has air pressure sensors (7-9) for detecting the air pressure of a vehicle tire (2-5), and transmitting air pressure information indicating the detected air pressure via a wireless communication, and an informing unit (100) installed in a gas station or the like has a display module (100b) for displaying the received air pressure information.

    摘要翻译: 在车辆用轮胎的气压信息显示系统中,车辆(1)具有用于检测车辆用轮胎(2-5)的气压的气压传感器(7-9),并且发送表示检测到的空气的空气压力信息 通过无线通信的压力和安装在加油站等中的通知单元(100)具有用于显示接收的气压信息的显示模块(100b)。