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    Electric machine monitoring method and system
    4.
    发明授权
    Electric machine monitoring method and system 失效
    电机监控方法及系统

    公开(公告)号：US06496782B1

    公开(公告)日：2002-12-17

    申请号：US09699089

    申请日：2000-10-30

    申请人： Bernhard Erich Hermann Claus ,  Gerald Burt Kliman ,  Nicolas Wadih Chbat

    发明人： Bernhard Erich Hermann Claus ,  Gerald Burt Kliman ,  Nicolas Wadih Chbat

    IPC分类号： G06E1900

    CPC分类号： G05B23/0221

    摘要： A machine monitoring method includes obtaining signals indicative of machine conditions, machine rotational speed, direction, and load conditions over a segment of time, transforming the obtained signal indicative of machine conditions into a frequency spectrum, identifying low level features of the frequency spectrum, and processing the low level features to obtain an indicator value representative of the machine conditions.

    摘要翻译： 一种机器监视方法包括：获取表示机器状态，机器转速，方向和负载状况的信号，将所获得的指示机器状况的信号变换成频谱，识别频谱的低级特征;以及 处理低级特征以获得代表机器条件的指标值。

    Power generator
    5.
    发明授权
    Power generator 失效
    发电机

    公开(公告)号：US06462457B2

    公开(公告)日：2002-10-08

    申请号：US09749062

    申请日：2000-12-27

    申请人： Manoj Ramprasad Shah ,  Sameh Ramadan Salem ,  Ronald Irving Longwell ,  Patrick Lee Jansen ,  Gerald Burt Kliman

    发明人： Manoj Ramprasad Shah ,  Sameh Ramadan Salem ,  Ronald Irving Longwell ,  Patrick Lee Jansen ,  Gerald Burt Kliman

    IPC分类号： H02K112

    CPC分类号： H02K1/185 ,  H02K1/16 ,  H02K11/01 ,  H02K11/40

    摘要： A power generator that operates at a reduced keybar voltages and currents, flange currents, and keybar voltage differentials includes a keybar shield that reduces the amount of magnetic flux coupling into a keybar of multiple keybars during operation of the generator. By reducing the amount of coupled flux, the keybar shield reduces a keybar voltage and a keybar current in a keybar, reduces keybar current flowing into a flange, and reduces a voltage differential between voltages induced by the flux in the multiple keybars.

    摘要翻译： 在减少的键盘电压和电流，法兰电流和键槽电压差下工作的发电机包括一个键槽屏蔽，其减少了在发电机运行期间耦合到多个键盘的键槽中的磁通量。 通过减少耦合磁通量，键盘屏蔽减少了键槽中的键槽电压和键槽电流，减少了流入法兰的键槽电流，并降低了由多个键盘中的磁通引起的电压之间的电压差。

    Non-intrusive speed sensing for induction motors
    6.
    发明授权
    Non-intrusive speed sensing for induction motors 有权
    异步电动机非侵入式速度检测

    公开(公告)号：US06208132B1

    公开(公告)日：2001-03-27

    申请号：US09184687

    申请日：1998-11-02

    申请人： Gerald Burt Kliman ,  John Andrew Mallick

    发明人： Gerald Burt Kliman ,  John Andrew Mallick

    IPC分类号： G01P348

    CPC分类号： G01P3/487

    摘要： A sensing coil affixed to the outside of an induction motor housing uses flux signals from the motor to measure motor speed. In particular, components of the rotor current are measured and compared to analysis from stator fundamentals and sidebands to determine the true rotor frequency which can then be used to determine the motor speed. A shield and/or a compensating coil can optionally be used to filter out extraneous signal noise.

    摘要翻译： 固定在感应电动机壳体外部的感测线圈使用来自电动机的磁通信号来测量电动机速度。 特别地，测量转子电流的分量并将其与来自定子基本面和边带的分析进行比较，以确定真正的转子频率，然后可以用它来确定电机速度。 可以可选地使用屏蔽和/或补偿线圈来滤除外来信号噪声。

    Bearing assembly including rotating element and magnetic bearings
    7.
    发明授权
    Bearing assembly including rotating element and magnetic bearings 有权
    轴承组件包括旋转元件和磁性轴承

    公开(公告)号：US06198803B1

    公开(公告)日：2001-03-06

    申请号：US09378155

    申请日：1999-08-20

    申请人： Mohamed Osama ,  Gerald Burt Kliman ,  Neil Richard Garrigan

    发明人： Mohamed Osama ,  Gerald Burt Kliman ,  Neil Richard Garrigan

    IPC分类号： H01J3510

    CPC分类号： F16C32/047 ,  F16C2380/16 ,  H01J35/103

    摘要： A bearing assembly includes: an axial rotatable structure including a cylindrical rotor assembly (including a motor rotor and a plurality of magnetic bearing rotors); a cylindrical stationary shaft; rotating element bearings mechanically coupling the rotatable structure and the stationary shaft; and a cylindrical stator assembly including a motor stator and a plurality of magnetic bearing stators. The magnetic bearing stators and the magnetic bearing rotors forming magnetic bearings magnetically coupling the rotor and stator assemblies. Command feedforward of electrical current can be provided to at least some of the bearings to achieve appropriate radial forces for respective operating trajectories.

    摘要翻译： 轴承组件包括：轴向可旋转结构，其包括圆柱形转子组件（包括电动机转子和多个磁性轴承转子）; 圆柱形固定轴; 旋转元件轴承机械地联接可旋转结构和固定轴; 以及包括电动机定子和多个磁性轴承定子的圆柱形定子组件。 磁轴承定子和磁轴承转子形成磁性轴承，磁耦合转子和定子组件。 电流指令的前馈可以提供给至少一些轴承，以实现相应操作轨迹的适当的径向力。

    Method for manufacturing a claw pole stator structure
    8.
    发明授权
    Method for manufacturing a claw pole stator structure 失效
    爪极定子结构的制造方法

    公开(公告)号：US6145187A

    公开(公告)日：2000-11-14

    申请号：US161619

    申请日：1998-09-28

    申请人： Gerald Burt Kliman

    发明人： Gerald Burt Kliman

    IPC分类号： H02K15/02

    CPC分类号： H02K15/022 ,  Y10T29/49009 ,  Y10T29/49076

    摘要： A multipole brushless DC motor stator is formed with a pair of complementary opposable claw pole stator structures in which each of the stator structures comprises a stator base formed of a plurality of stacked sheet metal laminations. A plurality of stator pole members extend from the stator base and are formed by compression molding of a ferromagnetic material. In one form, the ferromagnetic material is molded in situ on the stator base by positioning the stator base in a compression mold having the slots in which a powdered or flaked ferromagnetic material can be positioned and compressed by a die. In another form, the ferromagnetic pole members may be independently compression molded of powdered or flaked ferromagnetic material and then adhesively bonded to the stacked laminations forming the stator base. In either method, the stacked laminations are formed with a plurality of receptacles for receiving one end of each of the stator poles and holding the stator poles to the stator base.

    摘要翻译： 多极无刷直流电动机定子形成有一对互补的可对置爪极定子结构，其中每个定子结构包括由多个堆叠的金属板状叠片形成的定子基座。 多个定子极构件从定子基座延伸并且通过铁磁材料的压缩成型而形成。 在一种形式中，通过将定子基座定位在具有槽的压缩模具中，在定子基座上原位模制铁磁材料，其中粉末状或片状的铁磁材料可以由模具定位和压缩。 在另一种形式中，铁磁极构件可以由粉末状或片状的铁磁材料独立地压缩模制，然后粘合到形成定子基底的堆叠的叠片上。 在任一方法中，堆叠的叠片形成有多个接收器，用于接收每个定子极的一端并将定子极保持在定子基座上。

    Sensorless estimation of rotor temperature in induction motors
    9.
    发明授权
    Sensorless estimation of rotor temperature in induction motors 失效
    感应电动机转子温度的无传感器估计

    公开(公告)号：US6042265A

    公开(公告)日：2000-03-28

    申请号：US1233

    申请日：1997-12-30

    申请人： Gerald Burt Kliman ,  James Henry Dymond

    发明人： Gerald Burt Kliman ,  James Henry Dymond

    IPC分类号： G01K7/42 ,  G01K1/12

    CPC分类号： G01K7/42

    摘要： Rotor temperature in induction motors is estimated without the need for any direct temperature sensors, by using only computer calculations based on data readily available in the motor control center. Thus for any given motor, it is generally possible to predetermine a relationship between rotor temperature and rotor resistance, so that by determining rotor resistance, rotor temperature can be calculated. Rotor resistance, in turn, can be calculated from measured information relating motor slip and motor torque. Any of several methods can be employed for determining torque and slip. Temperature estimation can be obtained by use of equivalent circuit methods, and additional relationships can be obtained from a simplified equivalent circuit.

    摘要翻译： 估计感应电机的转子温度不需要任何直接的温度传感器，只能使用基于马达控制中心现有数据的计算机计算。 因此，对于任何给定的电动机，通常可以预先确定转子温度和转子电阻之间的关系，从而通过确定转子电阻，可以计算转子温度。 转子电阻又可以根据与电机滑差和电机转矩相关的测量信息来计算。 可以采用几种方法中的任何一种来确定扭矩和滑移。 可以通过使用等效电路方法来获得温度估计，并且可以从简化的等效电路获得额外的关系。

    Combined radial and axial magnetic bearings
    10.
    发明授权
    Combined radial and axial magnetic bearings 失效
    组合式径向和轴向磁性轴承

    公开(公告)号：US5729066A

    公开(公告)日：1998-03-17

    申请号：US532288

    申请日：1995-09-22

    申请人： Wen Liang Soong ,  James Patrick Lyons ,  Gerald Burt Kliman

    发明人： Wen Liang Soong ,  James Patrick Lyons ,  Gerald Burt Kliman

    IPC分类号： F16C39/06 ,  H02K7/09

    CPC分类号： F16C32/0459 ,  F16C32/0451 ,  F16C32/0491

    摘要： In a five-axis magnetic bearing, each of two combined radial and axial magnetic bearing structures includes a radial magnetic stator and a radial magnetic rotor. A shaft supports the rotors of the bearing structures. Each rotor and stator have an asymmetrical orientation such that the bearing structure is capable of creating a force in an axial direction when the bearing structure is excited. A creatable axial force of a first one of the bearing structures is capable of being in sufficient opposition to a creatable force of a second one of the bearing structures so as to maintain the shaft assembly in a desired axial position. The asymmetrical orientation may include, for example, a rotor being physically offset from a stator or a spatial distinction between a surface region of a respective rotor and a surface region of a respective stator. Examples of spatial distinctions include material extensions, notches, and holes. Each bearing structure can be controlled by four stator portions (actuators) with each actuator being supplied with current signals representative of a common mode axial force command and a respective differential radial force command.

    摘要翻译： 在五轴磁性轴承中，两个组合的径向和轴向磁性轴承结构中的每一个包括径向磁性定子和径向磁性转子。 轴支撑轴承结构的转子。 每个转子和定子具有非对称取向，使得当轴承结构被激励时，轴承结构能够在轴向上产生力。 轴承结构中的第一个的可产生的轴向力能够充分地抵抗第二轴承结构的可产生的力，以便将轴组件保持在期望的轴向位置。 非对称取向可以包括例如转子在物理上偏离定子或相应转子的表面区域和相应定子的表面区域之间的空间区别。 空间差异的例子包括材料扩展，缺口和孔。 每个轴承结构可以由四个定子部分（致动器）控制，每个致动器被提供有表示共模轴向力指令和相应的微分径向力指令的电流信号。