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    ABSOLUTE ANGLE ESTIMATION APPARATUS FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM
    2.
    发明申请
    ABSOLUTE ANGLE ESTIMATION APPARATUS FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM 审中-公开
    无传感器切换式机器系统的绝对角度估计装置

    公开(公告)号：WO1998001942A1

    公开(公告)日：1998-01-15

    申请号：PCT/US1997012285

    申请日：1997-07-09

    Applicant: SUNDSTRAND CORPORATION

    Inventor： SUNDSTRAND CORPORATION ,  JONES, Stephen, R. ,  DRAGER, Barry, T.

    IPC: H02P07/05

    CPC classification number: H02P1/163 ,  H02P6/185 ,  H02P9/40 ,  H02P25/089 ,  H02P2101/30

    Abstract: An apparatus for estimating rotor position of a rotating machine having an even number of phase windings selects first and second phase position estimates developed in response to pulses applied to phase windings having associated phase profiles that are displaced at other than 180 electrical degrees and determines a rotor position estimate from the first and second phase position estimates.

    Abstract translation: 用于估计具有偶数个相位绕组的旋转机器的转子位置的装置选择响应于施加到具有相关联的相位轮廓的相位绕组的脉冲而产生的第一和第二相位位置估计，该相位相位轮廓在除180度以外的位置上移位，并确定转子 从第一和第二阶段位置估计的位置估计。

    INSTANTANEOUS POSITION INDICATING APPARATUS FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM
    3.
    发明申请
    INSTANTANEOUS POSITION INDICATING APPARATUS FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM 审中-公开
    无传感器切换式机器系统的瞬时位置指示装置

    公开(公告)号：WO1997038485A1

    公开(公告)日：1997-10-16

    申请号：PCT/US1997005764

    申请日：1997-04-07

    Applicant: SUNDSTRAND CORPORATION

    Inventor： SUNDSTRAND CORPORATION ,  JONES, Stephen, R. ,  DRAGER, Barry, T.

    IPC: H02P07/05

    CPC classification number: H02P9/40 ,  H02P25/089 ,  H02P2101/30

    Abstract: A sensorless control for operating an inverter coupled to a switched reluctance machine includes an instantaneous position generation circuit that develops a signal for controlling commutation of the switched reluctance machine. The instantaneous position generation circuit includes a digitally controlled counter which provides a direct interface between a position estimation circuit and commutation logic for the inverter.

    Abstract translation: 用于操作耦合到开关磁阻电机的逆变器的无传感器控制器包括瞬时位置产生电路，其产生用于控制开关磁阻电机换向的信号。 瞬时位置产生电路包括数字控制的计数器，其提供位置估计电路和逆变器的换向逻辑之间的直接接口。

    MAGNETO-OPTIC CURRENT SENSOR
    4.
    发明申请
    MAGNETO-OPTIC CURRENT SENSOR 审中-公开
    磁电流传感器

    公开(公告)号：WO1990000256A1

    公开(公告)日：1990-01-11

    申请号：PCT/US1989002466

    申请日：1989-06-06

    Applicant: SUNDSTRAND CORPORATION

    Inventor： SUNDSTRAND CORPORATION ,  DOERFLER, Ronald, W. ,  POWER, Terrill, G. ,  JONES, Stephen, R. ,  OWENS, William, R.

    IPC: G01R33/032

    CPC classification number: G01R15/246 ,  G01R33/0322

    Abstract: A sensor (10) for sensing the magnitude of current flowing in a conductor (12) based upon the Faraday effect is disclosed. The invention utilizes a magneto-optic material having one or more layers (32) in which alignment with an optical fiber is not critical in achieving accurate current measurements. A magneto-optic material (28) in accordance with the invention includes one or more layers (32) each having a substrate having opposed surfaces coated with a material exhibiting the Faraday effect in which light from a light source is transmitted through the magneto-optic element without substantial internal reflection and is incident upon a surface area of the coating which is greater than the surface area of the beam of light.

    ESTIMATOR LOCK DETECTION CIRCUIT FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM
    7.
    发明申请
    ESTIMATOR LOCK DETECTION CIRCUIT FOR A SENSORLESS SWITCHED RELUCTANCE MACHINE SYSTEM 审中-公开
    无传感器切换式机械系统的估计器锁定检测电路

    公开(公告)号：WO1997038483A1

    公开(公告)日：1997-10-16

    申请号：PCT/US1997004576

    申请日：1997-03-17

    Applicant: SUNDSTRAND CORPORATION

    Inventor： SUNDSTRAND CORPORATION ,  JONES, Stephen, R.

    IPC: H02P07/05

    CPC classification number: H02P25/089

    Abstract: An estimator lock detection circuit for a sensorless switched reluctance machine system analyzes a statistical characteristic of an estimator signal to determine whether the estimator is accurately synchronized with actual machine operation. If the statistical analysis indicates that the estimator is not in lock, the estimator is reinitialized.

    Abstract translation: 用于无传感器开关磁阻电机系统的估计器锁定检测电路分析估计器信号的统计特性，以确定估计器是否与实际机器操作精确同步。 如果统计分析表明估计器未锁定，则估计器将被重新初始化。

    SWITCHED RELUCTANCE STARTER/GENERATOR SYSTEM AND METHOD OF CONTROLLING SAME
    8.
    发明申请
    SWITCHED RELUCTANCE STARTER/GENERATOR SYSTEM AND METHOD OF CONTROLLING SAME 审中-公开
    开关式起动器/发电机系统及其控制方法

    公开(公告)号：WO1995024072A1

    公开(公告)日：1995-09-08

    申请号：PCT/US1994014783

    申请日：1994-12-23

    Applicant: SUNDSTRAND CORPORATION

    Inventor： SUNDSTRAND CORPORATION ,  HEGLUND, William, S. ,  JONES, Stephen, R.

    IPC: H02P07/36

    CPC classification number: H02P9/40

    Abstract: A power/generator system controls a turbine engine (14) in a start mode, and converts mechanical energy from the turbine engine (14) to electrical energy in a generate mode. The system comprises a switched reluctance machine (10), an inverter (18) having a dc input/output coupled to the dc distribution bus (20) and coupled to each of the machines (10) phase windings, and a controller (22) to monitor rotor position (30) and generate switching control signals (26) to the inverter (18) for each of the phase windings at a fixed angle prior to alignment of the rotor pole with the associated stator pole, which couples the phase winding to the dc bus (20) and allows dc phase current to energize the winding. At a fixed angle prior to alignment the inverter (18) is controlled to decouple the phase winding from the dc bus (20) and forcing dc current to flow back through diodes to allow the switched reluctance machine to operate as a generator.

    Abstract translation: 电力/发电机系统以起动方式控制涡轮发动机（14），并且将来自涡轮发动机（14）的机械能量转换成发电模式的电能。 该系统包括开关磁阻电机（10），具有耦合到直流分配总线（20）并且耦合到每个机器（10）相绕组的直流输入/输出的逆变器（18），以及控制器（22） 在将转子磁极与相关联的定子极对准之前，以固定的角度对每个相绕组产生开关控制信号（26），以产生切换控制信号（26）到逆变器（18），将相绕组耦合到 直流母线（20）并允许直流相电流使绕组通电。 在对准之前以固定的角度控制逆变器（18）以将相绕组与直流母线（20）分离，并迫使直流电流流过二极管，以允许开关磁阻电机作为发电机工作。

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