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11. 发明授权

US5979087A Electric motor having electrostatic shield arrangement 失效
标题翻译：具有静电屏蔽装置的电动机
公开(公告)号：US5979087A
公开(公告)日：1999-11-09
申请号：US8345
申请日：1998-01-16
申请人： Sidney Bell , Michael J. Melfi , Stanley E. Wallace
发明人： Sidney Bell , Michael J. Melfi , Stanley E. Wallace
IPC分类号： H02K11/00 , H02K1/12
CPC分类号： H02K3/487 , H02K11/01
摘要： An electromechanical machine includes a stator fixed with respect to a housing structure and a rotor fixed with respect to a driven shaft. The stator includes a magnetically permeable core having a plurality of parallel winding slots containing conductive windings. Coilheads are located at opposite axial ends of the magnetically permeable core where the windings turn to extend down a parallel winding slot. The motor is equipped with electrostatic shield arrangements in the winding slots and coilheads to reduce capacitive coupling between the stator and rotor during operation.
摘要翻译：机电机械包括相对于壳体结构固定的定子和相对于从动轴固定的转子。定子包括具有包含导电绕组的多个平行绕组槽的导磁芯。线圈头位于导磁芯的相对的轴向端部处，其中绕组转动以沿平行的卷绕槽向下延伸。电动机在绕组槽和线圈头中配备有静电屏蔽装置，以减少运行期间定子和转子之间的电容耦合。

12. 发明授权

US07511438B2 Electric braking of machinery with a plurality of inverter-fed motors 失效
标题翻译：具有多台逆变器供电电机的机械电气制动
公开(公告)号：US07511438B2
公开(公告)日：2009-03-31
申请号：US11540358
申请日：2006-09-29
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02P5/00
CPC分类号： H02P5/74 , H02P3/18 , H02P3/24
摘要： A system and method are provided whereby at least two motors driven by an inverter coupled to a DC bus are configured to alternate between regenerative and injection braking such that at least one motor is placed in regenerative braking mode and at least one motor is placed in motoring mode. Energy is simultaneously placed on and removed from the DC bus in a manner allowing a large current to flow in as many motors as possible, for fast stoppage of load inertia. At least one motor may be placed in regenerative braking mode and at least one motor in DC injection mode, such that energy is simultaneously placed onto and removed from the DC bus, respectively. Further, a single motor may be is alternated between regenerative braking and DC injection braking, such that energy is alternately placed onto and removed from the DC bus, respectively.
摘要翻译：提供了一种系统和方法，由此由耦合到DC总线的反相器驱动的至少两个电动机被配置为在再生和注入制动之间交替，使得至少一个电动机被放置在再生制动模式中，并且至少一个电动机被放置在电动模式。能量同时放置在直流母线上并从其中移除，从而允许大电流在尽可能多的电动机中流动，以便快速停止负载惯量。至少一个电动机可以被放置在再生制动模式中，并且至少一个电动机处于DC注入模式，使得能量分别同时放置在DC总线上和从DC母线移除。此外，单个电动机可以在再生制动和DC注入制动之间交替，使得能量分别交替地放置在DC总线上和从DC总线移除。

13. 发明授权

US07385328B2 Cogging reduction in permanent magnet machines 有权
标题翻译：永磁机床齿槽减少
公开(公告)号：US07385328B2
公开(公告)日：2008-06-10
申请号：US11438753
申请日：2006-05-23
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02K1/27
CPC分类号： H02K29/03 , H02K1/2766 , H02K1/278 , H02K21/14
摘要： A permanent magnet motor having a rotor and a stator and configured such that when the leading edge of each pole of the rotor aligns with a stator tooth the trailing edge of that pole is generally not aligned with a stator tooth.
摘要翻译：一种永磁电动机，其具有转子和定子，并且构造成使得当转子的每个极的前缘与定子齿对准时，该极的后缘通常不与定子齿对齐。

14. 发明授权

US07358620B2 Methods and apparatus for ride-through operation of a complementary device to a transient power source 有权
标题翻译：用于将辅助装置穿过操作到瞬态电源的方法和装置
公开(公告)号：US07358620B2
公开(公告)日：2008-04-15
申请号：US10955210
申请日：2004-09-30
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： F02B63/04 , H02K7/18
CPC分类号： H02K7/025 , H02J9/066 , Y02E60/16
摘要： In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing operating power to a complementary device to an induction device based uninterruptible power source (UPS) via a direct current (dc) bus. In one embodiment, the UPS includes a flywheel that stores kinetic energy during conventional operating conditions, e.g., external power is available. During such operating condition, the external power operates the induction device as an induction motor. However, when external power is lost, i.e., a transient operating condition, power conversion circuitry of the UPS provides ac power to the induction device such that the induction device operates above its synchronous speed and, as such, acts as an induction generator. However to improve the operating of the exemplary UPS, it includes second power conversion circuitry that converts both generated and received power to a power level that is desirable to complementary device cooperating with the induction device.
摘要翻译：根据某些示例性实施例，本技术提供了用于经由直流（dc）总线向互补装置向基于感应装置的不间断电源（UPS）提供工作电力的方法和装置。在一个实施例中，UPS包括在常规操作条件下存储动能的飞轮，例如外部电力可用。在这种运行状态下，外部电源作为感应电动机操作感应装置。然而，当外部电力丢失（即瞬时运行状态）时，UPS的功率转换电路向感应装置提供交流电力，使得感应装置工作在同步速度以上，并且作为感应发电机。然而，为了改善示例性UPS的操作，它包括第二功率转换电路，其将生成的和接收的功率转换成对于与感应装置协作的互补装置所期望的功率水平。

15. 发明申请

US20080079373A1 Electric braking of machinery with a plurality of inverter-fed motors 失效
标题翻译：具有多台逆变器供电电机的机械电气制动
公开(公告)号：US20080079373A1
公开(公告)日：2008-04-03
申请号：US11540358
申请日：2006-09-29
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02P1/54
CPC分类号： H02P5/74 , H02P3/18 , H02P3/24
摘要： A system and method are provided whereby at least two motors driven by an inverter coupled to a DC bus are configured to alternate between regenerative and injection braking such that at least one motor is placed in regenerative braking mode and at least one motor is placed in motoring mode. Energy is simultaneously placed on and removed from the DC bus in a manner allowing a large current to flow in as many motors as possible, for fast stoppage of load inertia. At least one motor may be placed in regenerative braking mode and at least one motor in DC injection mode, such that energy is simultaneously placed onto and removed from the DC bus, respectively. Further, a single motor may be is alternated between regenerative braking and DC injection braking, such that energy is alternately placed onto and removed from the DC bus, respectively.
摘要翻译：提供了一种系统和方法，由此由耦合到DC总线的反相器驱动的至少两个电动机被配置为在再生和注入制动之间交替，使得至少一个电动机被放置在再生制动模式中，并且至少一个电动机被放置在电动模式。能量同时放置在直流母线上并从其中移除，从而允许大电流在尽可能多的电动机中流动，以便快速停止负载惯量。至少一个电动机可以被放置在再生制动模式中，并且至少一个电动机处于DC注入模式，使得能量分别同时放置在DC总线上和从DC母线移除。此外，单个电动机可以在再生制动和DC注入制动之间交替，使得能量分别交替地放置在DC总线上和从DC总线移除。

16. 发明授权

US06819018B2 System and method of reducing bearing voltage 失效
标题翻译：降低轴承电压的系统和方法
公开(公告)号：US06819018B2
公开(公告)日：2004-11-16
申请号：US10653125
申请日：2003-09-02
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02K1100
CPC分类号： H02K11/40 , H02K11/01
摘要： Technique for reducing bearing current discharges in a system by increasing the surface area between the shaft and the frame of the system and thereby increasing the rotor to frame capacitance.
摘要翻译：通过增加轴和系统的框架之间的表面积，从而将转子增加到框架电容，减少系统中轴承电流放电的技术。

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