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1. 发明授权

US07135834B1 Modified field oriented control 有权
标题翻译：改进的磁场定向控制
公开(公告)号：US07135834B1
公开(公告)日：2006-11-14
申请号：US11218447
申请日：2005-09-02
申请人： Michael J. Melfi , Robert John Breitzmann
发明人： Michael J. Melfi , Robert John Breitzmann
IPC分类号： H02P1/16
CPC分类号： H02P21/12
摘要： In accordance with certain embodiments, the present technique provides a reduced current field-oriented-control scheme. For example, the present technique provides a method of controlling an induction device in which a predetermined reduction factor is employed to reduce the flux-current vector of a field-oriented-control scheme. By reducing this vector, less current and less power are drawn by the induction device, in turn reducing resistive heating and stator core losses, for instance.
摘要翻译：根据某些实施例，本技术提供减小的电流场取向控制方案。例如，本技术提供了一种控制感应装置的方法，其中采用预定的缩减因子来减小场导向控制方案的磁通电流矢量。通过减小该矢量，例如，感应装置吸收较少的电流和较少的功率，反过来又减小了电阻加热和定子铁芯的损耗。

2. 发明授权

US06670733B2 System and method of reducing bearing voltage 有权
标题翻译：降低轴承电压的系统和方法
公开(公告)号：US06670733B2
公开(公告)日：2003-12-30
申请号：US09965312
申请日：2001-09-27
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。

3. 发明申请

US20070291426A1 SYSTEM AND METHOD FOR PROTECTING A MOTOR DRIVE UNIT FROM MOTOR BACK EMF UNDER FAULT CONDITIONS 失效
标题翻译：在故障条件下从电机反电动势保护电机驱动单元的系统和方法
公开(公告)号：US20070291426A1
公开(公告)日：2007-12-20
申请号：US11425092
申请日：2006-06-19
申请人： John M. Kasunich , Daniel Pixler , Brian T. Concannon , Michael J. Melfi , Semyon Royak , Mark M. Harbaugh
发明人： John M. Kasunich , Daniel Pixler , Brian T. Concannon , Michael J. Melfi , Semyon Royak , Mark M. Harbaugh
IPC分类号： H02H7/09 , H02P3/22
CPC分类号： H02P3/22 , H02H7/1216 , H02P9/006
摘要： A system and method for protecting a motor drive unit from an associated motor includes a motor drive unit protection system. The motor drive unit protection system includes at least one switch configured to be connected between a motor drive unit and a plurality of motor leads of the motor driven by the motor drive unit. The motor drive unit protection system also includes a controller configured to monitor the motor drive unit or the motor to determine a fault condition indicative of the motor potentially operating as a generator. Upon determining the fault condition, the controller is configured to cause the at least one switch to connect the plurality of motor leads together to protect the motor drive unit from the motor when the motor is operating as a generator.
摘要翻译：一种用于保护马达驱动单元免受相关马达的系统和方法包括马达驱动单元保护系统。电机驱动单元保护系统包括至少一个开关，其被配置为连接在马达驱动单元和由马达驱动单元驱动的马达的多个马达引线之间。马达驱动单元保护系统还包括控制器，该控制器被配置为监测马达驱动单元或马达以确定指示可能作为发电机运行的马达的故障状况。在确定故障状态时，控制器被配置为使得至少一个开关将多个电动机引线连接在一起，以在电动机作为发电机运行时保护电动机驱动单元免受电动机的影响。

4. 发明授权

US5998896A Electric motor having frame adaptable for enclosed and open motor cooling 失效
标题翻译：电动机具有适用于封闭和开放电机冷却的框架
公开(公告)号：US5998896A
公开(公告)日：1999-12-07
申请号：US974176
申请日：1997-11-19
申请人： John Early , Thomas S. Evon , Barron D. Grant , Michael J. Melfi , Patricia L. Smith , Daniel J. Stelzner
发明人： John Early , Thomas S. Evon , Barron D. Grant , Michael J. Melfi , Patricia L. Smith , Daniel J. Stelzner
IPC分类号： H02K5/20 , H02K5/22 , H02K9/04 , H02K9/16 , H02K5/00
CPC分类号： H02K5/225 , H02K5/20 , H02K9/04 , H02K9/14
摘要： A frame for the housing of an electric motor having a top cavity that extends axially along the upper interior portion of the frame and beneath the top wall of the frame. The top cavity functions as a conduit box through which access is provided to the electrical leads of the motor, thus eliminating the need for a separate conduit box attached to the exterior of the housing. The frame also includes an axially extending, corner channel along each of its four corners. The frame is adaptable for both closed and open housing cooling arrangements.
摘要翻译：一种用于电机壳体的框架，其具有顶部空腔，所述顶部空腔沿框架的上部内部轴向延伸并且在框架的顶壁下方。顶部空腔用作导管箱，通过该导管箱将通路提供给电动机的电引线，因此不需要连接到壳体外部的单独的导管盒。框架还包括沿其四个角中的每一个的轴向延伸的拐角通道。该框架适用于封闭和开放式外壳冷却装置。

5. 发明授权

US5943245A Motor application and selection method and apparatus 失效
标题翻译：电机应用及选型方法及装置
公开(公告)号：US5943245A
公开(公告)日：1999-08-24
申请号：US887070
申请日：1997-07-02
申请人： Michael J. Melfi , John R. Early , Wesley L. Haynes
发明人： Michael J. Melfi , John R. Early , Wesley L. Haynes
IPC分类号： G06F17/50 , G06G7/48
CPC分类号： G06F17/50 , Y02T10/82 , Y10S706/919
摘要： Variable speed AC motors are selected in accordance with user defined characteristics. A reference database containing information on a selected variety of frame/modules is modified in accordance with selected input data. The complexity of selecting an appropriate sized frame/module is simplified by utilizing key information about the motor electromagnetic characteristics as well as how they will vary due to operation at some user/application-defined operating conditions. The user/application-defined operating conditions are multi-dimensional, and include cooling/enclosure variations, ambient temperature, altitude, service factor, minimum, nominal, and maximum speeds (and corresponding continuous and momentary load torques at each of these speeds). This allows a person without intimate knowledge of motor characteristics to choose an optimal combination of motor and corresponding variable voltage, variable frequency supply for a particular application.
摘要翻译：变频交流电机根据用户定义的特性进行选择。根据所选择的输入数据修改包含所选择的各种帧/模块的信息的参考数据库。通过利用关于电机电磁特性的关键信息以及由于在某些用户/应用程序定义的操作条件下的操作而改变它们将如何变化来简化选择适当尺寸的框架/模块的复杂性。用户/应用程序定义的操作条件是多维度的，包括冷却/外壳变化，环境温度，高度，维护系数，最小值，额定和最大速度（以及每个速度下的相应连续和瞬时负载转矩）。这允许没有电动机特性的仔细知识的人选择电动机和相应的可变电压，特定应用的可变频率供应的最佳组合。

6. 发明授权

US09166456B2 System and method to allow a synchronous motor to successfully synchronize with loads that have high inertia and/or high torque 有权
标题翻译：允许同步电机与具有高惯量和/或高扭矩的负载成功同步的系统和方法
公开(公告)号：US09166456B2
公开(公告)日：2015-10-20
申请号：US13432237
申请日：2012-03-28
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02P6/00 , F16D27/00 , B22D19/00 , H02K7/00
CPC分类号： H02K7/003 , F16D37/00 , H02K7/10 , H02K7/118 , H02K7/14 , H02P1/46 , H02P15/00 , Y10T29/49009
摘要： A mechanical soft-start type coupling is used as an interface between a line start, synchronous motor and a heavy load to enable the synchronous motor to bring the heavy load up to or near synchronous speed. The soft-start coupling effectively isolates the synchronous motor from the load for enough time to enable the synchronous motor to come up to full speed. The soft-start coupling then brings the load up to or near synchronous speed.
摘要翻译：机械软启动型联轴器用作线路启动，同步电机和重负载之间的接口，以使同步电机能够使重负载达到或接近同步速度。软启动耦合有效地将同步电机与负载隔离足够的时间，以使同步电机达到全速。软启动耦合然后使负载达到或接近同步速度。

7. 发明申请

US20130257342A1 System and Method to Allow a Synchronous Motor to Successfully Synchronize with Loads that Have High Inertia and/or High Torque 有权
标题翻译：允许同步电机与具有高惯量和/或高转矩的载荷成功同步的系统和方法
公开(公告)号：US20130257342A1
公开(公告)日：2013-10-03
申请号：US13432237
申请日：2012-03-28
申请人： Michael J. Melfi
发明人： Michael J. Melfi
IPC分类号： H02P1/46 , H02K15/00
CPC分类号： H02K7/003 , F16D37/00 , H02K7/10 , H02K7/118 , H02K7/14 , H02P1/46 , H02P15/00 , Y10T29/49009
摘要： A mechanical soft-start type coupling is used as an interface between a line start, synchronous motor and a heavy load to enable the synchronous motor to bring the heavy load up to or near synchronous speed. The soft-start coupling effectively isolates the synchronous motor from the load for enough time to enable the synchronous motor to come up to full speed. The soft-start coupling then brings the load up to or near synchronous speed.
摘要翻译：机械软启动型联轴器用作线路启动，同步电机和重负载之间的接口，以使同步电机能够使重负载达到或接近同步速度。软启动耦合有效地将同步电机与负载隔离足够的时间，以使同步电机达到全速。软启动耦合然后使负载达到或接近同步速度。

8. 发明授权

US07479756B2 System and method for protecting a motor drive unit from motor back EMF under fault conditions 失效
标题翻译：在故障条件下保护电机驱动单元免受电机反电动势的系统和方法
公开(公告)号：US07479756B2
公开(公告)日：2009-01-20
申请号：US11425092
申请日：2006-06-19
申请人： John M. Kasunich , Daniel Pixler , Brian T. Concannon , Michael J. Melfi , Semyon Royak , Mark M. Harbaugh
发明人： John M. Kasunich , Daniel Pixler , Brian T. Concannon , Michael J. Melfi , Semyon Royak , Mark M. Harbaugh
IPC分类号： H02P1/26
CPC分类号： H02P3/22 , H02H7/1216 , H02P9/006
摘要： A system and method for protecting a motor drive unit from an associated motor includes a motor drive unit protection system. The motor drive unit protection system includes at least one switch configured to be connected between a motor drive unit and a plurality of motor leads of the motor driven by the motor drive unit. The motor drive unit protection system also includes a controller configured to monitor the motor drive unit or the motor to determine a fault condition indicative of the motor potentially operating as a generator. Upon determining the fault condition, the controller is configured to cause the at least one switch to connect the plurality of motor leads together to protect the motor drive unit from the motor when the motor is operating as a generator.
摘要翻译：一种用于保护马达驱动单元免受相关马达的系统和方法包括马达驱动单元保护系统。电机驱动单元保护系统包括至少一个开关，其被配置为连接在马达驱动单元和由马达驱动单元驱动的马达的多个马达引线之间。马达驱动单元保护系统还包括控制器，该控制器被配置为监测马达驱动单元或马达以确定指示可能作为发电机运行的马达的故障状况。在确定故障状态时，控制器被配置为使得至少一个开关将多个电动机引线连接在一起，以在电动机作为发电机运行时保护电动机驱动单元免受电动机的影响。

9. 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。

10. 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。

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