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18 条记录 (耗时 0.024 秒)

    Determining phase of AC mains in PWM controlled converters without voltage sensors
    3.
    发明授权
    Determining phase of AC mains in PWM controlled converters without voltage sensors 失效
    在没有电压传感器的PWM控制转换器中确定交流电源的相位

    公开(公告)号：US06459599B1

    公开(公告)日：2002-10-01

    申请号：US09872681

    申请日：2001-06-01

    申请人： Ismail Agirman ,  Vladimir Blasko ,  Christopher S. Czerwinski ,  Jeffrey M. Izard ,  Edward D. Piedra

    发明人： Ismail Agirman ,  Vladimir Blasko ,  Christopher S. Czerwinski ,  Jeffrey M. Izard ,  Edward D. Piedra

    IPC分类号： H02M704

    CPC分类号： H02M7/219

    摘要： In a pulse width modulation-controlled, switched bridge, DC converter, the phase angle (44, 45) of the AC mains (4) is provided without sensing the voltage thereof, by a phase-locked loop (47) having one input (75) derived (126) from the in-phase voltage command Vde* (61) and another finit (77) approximating the line frequency; the phase-locked loop is initialized at a phase angle &thgr;init(76) equal to the arctangent (124) of the in-phase Vdest, and quadrature Vqest representation of estimated line voltages ere, ese, ete (119-121) derived during an initialization cycle from reconstruction of the fundamental component of the AC main currents at a phase angle (93) changing with said frequency. Reconstruction includes providing the discrete Fourier transform (DFT, 81) of signals indicative of currents (37) in the AC mains and the inverse DFT (122) of the resultant Fourier coefficients eia, eib.

    摘要翻译： 在脉冲宽度调制控制的交换电桥DC转换器中，通过具有一个输入的锁相环（47），提供交流电源（4）的相位角（44,45）而不感测其电压， 75）从同相电压指令Vde *（61）导出（126）和接近线路频率的另一个限制（77）; 锁相环在等于同相Vdest的反正切（124）的相位角维持（76）初始化，以及估计的线电压ere，e​​se，ete（119-121）的正交Vqest表示在 在以所述频率改变的相位角（93）的交流主电流的基本分量的重建之后的初始化周期。 重建包括提供表示AC电源中的电流（37）的信号的离散付里叶变换（DFT，81）和所得到的傅里叶系数eia，eib的逆DFT（122）。

    Managing an encoder malfunction in an elevator drive system
    4.
    发明授权
    Managing an encoder malfunction in an elevator drive system 有权
    管理电梯驱动系统中的编码器故障

    公开(公告)号：US08006808B2

    公开(公告)日：2011-08-30

    申请号：US12087694

    申请日：2006-01-30

    申请人： Edward D. Piedra ,  Jeffrey M. Izard ,  Ismail Agirman

    发明人： Edward D. Piedra ,  Jeffrey M. Izard ,  Ismail Agirman

    IPC分类号： B66B1/34

    CPC分类号： B66B5/0018 ,  B66B1/3492

    摘要： An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold (62). An encoder fault timer is incremented when the velocity is less than the minimum velocity threshold (64). The elevator drive system is disabled when the encoder fault timer reaches a fault threshold time (66).

    摘要翻译： 检测并管理电梯驱动系统中的编码器故障。 电梯驱动系统的速度由编码器信号（60）提供，并与最小速度阈值（62）进行比较。 当速度小于最小速度阈值时，编码器故障定时器递增（64）。 当编码器故障定时器到达故障阈值时间（66）时，电梯驱动系统被禁用。

    Managing an Encoder Malfunction in an Elevator Drive System
    5.
    发明申请
    Managing an Encoder Malfunction in an Elevator Drive System 有权
    管理电梯驱动系统中的编码器故障

    公开(公告)号：US20090000877A1

    公开(公告)日：2009-01-01

    申请号：US12087694

    申请日：2006-01-30

    申请人： Jeffrey M. Izard ,  Ismail Agirman ,  Edward D. Piedra

    发明人： Jeffrey M. Izard ,  Ismail Agirman ,  Edward D. Piedra

    IPC分类号： B66B1/34 ,  B66B1/32

    CPC分类号： B66B5/0018 ,  B66B1/3492

    摘要： An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold (62). An encoder fault timer is incremented when the velocity is less than the minimum velocity threshold (64). The elevator drive system is disabled when the encoder fault timer reaches a fault threshold time (66).

    摘要翻译： 检测并管理电梯驱动系统中的编码器故障。 电梯驱动系统的速度由编码器信号（60）提供，并与最小速度阈值（62）进行比较。 当速度小于最小速度阈值时，编码器故障定时器递增（64）。 当编码器故障定时器达到故障阈值时间（66）时，电梯驱动系统被禁用。

    OPERATON OF A THREE-PHASE REGENERATIVE DRIVE FROM MIXED DC AND SINGLE PHASE AC POWER SOURCES
    6.
    发明申请
    OPERATON OF A THREE-PHASE REGENERATIVE DRIVE FROM MIXED DC AND SINGLE PHASE AC POWER SOURCES 有权
    来自混合直流和单相交流电源的三相再生驱动器的操作

    公开(公告)号：US20110247900A1

    公开(公告)日：2011-10-13

    申请号：US13128798

    申请日：2008-11-21

    申请人： Vladimir Blasko ,  Ismail Agirman ,  Stella M. Oggianu ,  Robert K. Thornton

    发明人： Vladimir Blasko ,  Ismail Agirman ,  Stella M. Oggianu ,  Robert K. Thornton

    IPC分类号： B66B1/20 ,  H02J1/12 ,  H02P3/14

    CPC分类号： H02P3/14 ,  B66B1/302 ,  B66B1/308 ,  H02P27/00 ,  H02P27/06 ,  H02P2201/03 ,  H02P2201/07

    摘要： A three-phase regenerative drive (20) is operated based upon power from a single-phase AC source (12) and power from a DC source (14). The single-phase AC input power and the DC input power are converted to DC voltage on a DC bus (24) by a three-phase converter (22). DC power is provided from the DC bus (24) to a three-phase inverter having outputs connected to a motor (34). A controller (44) controls operation of the three-phase converter (22) based upon contribution factors of the AC and DC sources (12, 14) during motoring and regeneration. The controller (44) also controls an AC component of current from the DC source to reduce ripple current on the DC bus (24).

    摘要翻译： 基于来自单相AC电源（12）的功率和来自DC源（14）的功率来操作三相再生驱动器（20）。 单相交流输入功率和直流输入功率通过三相转换器（22）转换为直流母线（24）上的直流电压。 从DC总线（24）向具有与马达（34）连接的输出的三相逆变器提供直流电力。 控制器（44）在驾驶和再生期间基于AC和DC源（12,14）的贡献因子来控制三相转换器（22）的操作。 控制器（44）还控制来自DC源的电流的AC分量，以减小DC总线（24）上的纹波电流。

    REGENERATIVE DRIVE WITH BACKUP POWER SUPPLY
    7.
    发明申请
    REGENERATIVE DRIVE WITH BACKUP POWER SUPPLY 有权
    备用驱动器备用电源

    公开(公告)号：US20120261217A1

    公开(公告)日：2012-10-18

    申请号：US13529545

    申请日：2012-06-21

    申请人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    发明人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    IPC分类号： H02J9/00 ,  B66B1/06

    CPC分类号： B66B1/302 ,  B66B5/027

    摘要： A system continuously drives a motor during normal and power failure operating conditions. A regenerative drive delivers power to the motor from a main power supply during the normal operating condition and from a backup power supply during the power failure operating condition. A controller operates the regenerative drive to provide available power on the regenerative drive to the backup power supply during the normal operating condition.

    摘要翻译： 在正常和停电操作条件下，系统连续驱动电机。 再生驱动器在正常操作条件期间从主电源向电动机供电，并且在断电操作条件期间从备用电源向电动机供电。 控制器操作再生驱动器，以在正常操作条件期间向再生驱动器提供可用电力给备用电源。

    Elevator regenerative drive with automatic rescue operation
    8.
    发明授权
    Elevator regenerative drive with automatic rescue operation 有权
    电梯再生驱动器具有自动救援作业

    公开(公告)号：US08230978B2

    公开(公告)日：2012-07-31

    申请号：US12526872

    申请日：2007-02-13

    申请人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    发明人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    IPC分类号： B66B1/06

    CPC分类号： B66B1/302 ,  B66B5/027

    摘要： A system (10) continuously drives an elevator hoist motor (14) during normal and power failure operating conditions. A regenerative drive (30, 34, 36) delivers power to the hoist motor (14) from a main power supply (17) during the normal operating condition and from a backup power supply (24) during the power failure operating condition. A controller (12) operates the regenerative drive (30, 34, 36) to provide available power on the regenerative drive (30, 34, 36) to the backup power supply (24) during the normal operating condition.

    摘要翻译： 在正常和停电操作条件期间，系统（10）连续驱动电梯起重电动机（14）。 再生驱动器（30,34,36）在正常运行状态期间从主电源（17）向电动机（14）供电，并且在停电运行状态期间从备用电源（24）输出电力。 在正常操作状态期间，控制器（12）操作再生驱动器（30,34,36）以在再生驱动器（30,34,36）上向备用电源（24）提供可用电力。

    Operating a three phase device using single phase power
    9.
    发明授权
    Operating a three phase device using single phase power 有权
    使用单相电源操作三相设备

    公开(公告)号：US07609534B2

    公开(公告)日：2009-10-27

    申请号：US11573056

    申请日：2004-08-19

    申请人： Ismail Agirman ,  Vladimir Blasko ,  Christopher Czerwinski

    发明人： Ismail Agirman ,  Vladimir Blasko ,  Christopher Czerwinski

    IPC分类号： H02M5/451

    CPC分类号： B66B1/30 ,  H02P23/0004 ,  H02P23/22

    摘要： A powering arrangement (32, 34) for a device (30, 22) that normally operates on three phase power has the capability of operating based upon single phase power. One disclosed technique includes estimating a direct component based upon a measured voltage across the leads coupled with the single phase power supply. The quadrature component is estimated based upon a numerical derivative of the direct component. The direct component is also provided to a current regulator in a feed forward control manner, which minimizes error.

    摘要翻译： 用于通常以三相电源工作的装置（30,22）的供电装置（32,34）具有基于单相功率的操作能力。 一种公开的技术包括基于与单相电源耦合的引线上的测量电压来估计直接分量。 基于直接分量的数值导数来估计正交分量。 直接分量还以前馈控制方式提供给电流调节器，这使误差最小化。

    System and method for operating a motor during normal and power failure conditions
    10.
    发明授权
    System and method for operating a motor during normal and power failure conditions 有权
    在正常和停电条件下操作电机的系统和方法

    公开(公告)号：US08789659B2

    公开(公告)日：2014-07-29

    申请号：US13529545

    申请日：2012-06-21

    申请人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    发明人： Ismail Agirman ,  Vladimir Blasko ,  Frank Higgins

    IPC分类号： B66B1/06

    CPC分类号： B66B1/302 ,  B66B5/027

    摘要： A system continuously drives a motor during normal and power failure operating conditions. A regenerative drive delivers power to the motor from a main power supply during the normal operating condition and from a backup power supply during the power failure operating condition. A controller operates the regenerative drive to provide available power on the regenerative drive to the backup power supply during the normal operating condition.

    摘要翻译： 在正常和停电操作条件下，系统连续驱动电机。 再生驱动器在正常操作条件期间从主电源向电动机供电，并且在断电操作条件期间从备用电源向电动机供电。 控制器操作再生驱动器，以在正常操作条件期间向再生驱动器提供可用电力给备用电源。