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1. 发明授权

US08254076B2 Providing modular power conversion 有权
标题翻译：提供模块化电源转换
公开(公告)号：US08254076B2
公开(公告)日：2012-08-28
申请号：US12495385
申请日：2009-06-30
申请人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
发明人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
IPC分类号： H02H9/00
CPC分类号： H02M7/49 , H02M7/003 , H02P27/14
摘要： In one embodiment, a medium voltage drive system includes at least one transformer and multiple power cell chambers each coupled to a transformer. The power cell chambers each may include a rectifier, a DC-link, and an inverter. Each power cell chamber can be separated into fixed and moveable portions, where the moveable portion includes the rectifier and the inverter and the fixed portion includes the DC-link. A power service bus can couple the fixed and moveable portions of each power cell chamber and couple in series groups of the plurality of power cell chambers.
摘要翻译：在一个实施例中，中压驱动系统包括至少一个变压器和每个耦合到变压器的多个功率单元室。电源室各自可以包括整流器，DC链路和逆变器。每个动力单元室可以分离成固定和可移动的部分，其中可移动部分包括整流器，逆变器和固定部分包括直流链路。电力服务总线可以耦合每个功率单元室的固定和可移动部分，并且耦合在多个功率单元室的串联组中。

2. 发明授权

US08129853B2 Power converter for use with wind generator 有权
公开(公告)号：US08129853B2
公开(公告)日：2012-03-06
申请号：US12827836
申请日：2010-06-30
申请人： Mehdi Abolhassani , Thomas Keister , Haran Karmaker , Ryan Edwards , Enrique Ledezma , Alex Skorcz
发明人： Mehdi Abolhassani , Thomas Keister , Haran Karmaker , Ryan Edwards , Enrique Ledezma , Alex Skorcz
IPC分类号： H02K6/00
CPC分类号： H02J3/385 , H02J3/386 , H02K3/28 , H02K7/1838 , H02K11/046 , H02K19/34 , H02K2213/06 , H02K2213/12 , H02M7/49 , H02P9/48 , H02P25/22 , H02P2101/15 , Y02E10/58 , Y02E10/725 , Y02E10/763 , Y10T307/707
摘要： In one embodiment, the present invention includes a turbine to generate mechanical energy from kinetic energy, a generator coupled to the turbine to receive the mechanical energy and to output multiple isolated supply powers, and multiple power stages each coupled to the generator. Each of the power stages may receive at least one of the isolated supply powers.

3. 发明申请

US20110199033A1 Partial Regeneration In A Multi-Level Power Inverter 有权
标题翻译：多电平逆变器部分再生
公开(公告)号：US20110199033A1
公开(公告)日：2011-08-18
申请号：US13094947
申请日：2011-04-27
申请人： Mehdi Abolhassani , Thomas Keister , Alex Skorcz , Enrique Ledezma , Ryan Edwards
发明人： Mehdi Abolhassani , Thomas Keister , Alex Skorcz , Enrique Ledezma , Ryan Edwards
IPC分类号： G05F1/70
CPC分类号： H02M7/49 , H02M5/4585
摘要： In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.
摘要翻译：在一个实施例中，本发明包括具有多个功率单元的中压驱动系统，每个功率单元在变压器和负载之间耦合。功率单元的第一子集被配置为向负载提供电力并且从负载执行部分再生，并且功率单元的第二子集被配置为向负载提供电力但不执行部分再生。控制器可以包括在系统中以同时控制功率单元的第一子集中的至少一个的DC总线电压，校正系统的功率因数，并为系统提供谐波电流补偿。

4. 发明授权

US07863766B2 Power converter for use with wind generator 有权
标题翻译：电力转换器用于风力发电机
公开(公告)号：US07863766B2
公开(公告)日：2011-01-04
申请号：US12494668
申请日：2009-06-30
申请人： Mehdi Abolhassani , Thomas Keister , Haran Karmaker , Ryan Edwards , Enrique Ledezma , Alex Skorcz
发明人： Mehdi Abolhassani , Thomas Keister , Haran Karmaker , Ryan Edwards , Enrique Ledezma , Alex Skorcz
IPC分类号： F30D9/00
CPC分类号： H02J3/385 , H02J3/386 , H02K3/28 , H02K7/1838 , H02K11/046 , H02K19/34 , H02K2213/06 , H02K2213/12 , H02M7/49 , H02P9/48 , H02P25/22 , H02P2101/15 , Y02E10/58 , Y02E10/725 , Y02E10/763 , Y10T307/707
摘要： In one embodiment, the present invention includes a turbine to generate mechanical energy from kinetic energy, a generator coupled to the turbine to receive the mechanical energy and to output multiple isolated supply powers, and multiple power stages each coupled to the generator. Each of the power stages may receive at least one of the isolated supply powers.
摘要翻译：在一个实施例中，本发明包括从动能产生机械能的涡轮机，耦合到涡轮机以接收机械能并输出多个隔离供电功率的发电机以及各自耦合到发电机的多个功率级。每个功率级可以接收至少一个隔离的供电功率。

5. 发明申请

US20070267990A1 ELECTRONICALLY COMMUTATED MOTOR AND CONTROL SYSTEM EMPLOYING PHASE ANGLE CONTROL OF PHASE CURRENT 有权
标题翻译：采用相位电流相位角控制的电子式电动机和控制系统
公开(公告)号：US20070267990A1
公开(公告)日：2007-11-22
申请号：US11751790
申请日：2007-05-22
申请人： Mehdi Abolhassani , Shailesh P. Waikar , Ren H. Wang , Uday S. Deshpande
发明人： Mehdi Abolhassani , Shailesh P. Waikar , Ren H. Wang , Uday S. Deshpande
IPC分类号： H02P7/00
CPC分类号： H02P6/153 , H02P21/0089
摘要： A power tool may include an electronically commutated motor such as, for example, a brushless DC permanent magnet motor with a rotor having internally mounted magnets and/or cavities filled with air or other non-magnetic materials. A control system may be used to control the motor in a manner that implements field weakening when the speed of the motor increases beyond its rated motor speed, or when the torque demands on the motor continue to increase after the maximum power output of the motor is reached. The field weakening may offset the growing back EMF and may enable a constant power and constant efficiency to be achieved by the motor over a wide speed range, rather than at just a single predetermined operating speed. Pulse width modulation control of the motor may be used up until the motor reaches its maximum power output.
摘要翻译：电动工具可以包括电子换向电动机，例如具有内部安装的磁体和/或填充有空气或其它非磁性材料的空腔的转子的无刷直流永磁电动机。可以使用控制系统来控制电动机，当电动机的速度超过其额定电动机速度时，或当电机的最大功率输出为到达。磁场弱化可以抵消增长的反电动势，并且可以使电动机在宽的速度范围内实现恒定的功率和恒定的效率，而不仅仅是单个预定的操作速度。电机的脉宽调制控制可能会被使用，直到电机达到其最大功率输出。

6. 发明授权

US07940537B2 Partial regeneration in a multi-level power inverter 有权
标题翻译：多级电源逆变器的部分再生
公开(公告)号：US07940537B2
公开(公告)日：2011-05-10
申请号：US12317958
申请日：2008-12-31
申请人： Mehdi Abolhassani , Thomas Keister , Alex Skorcz , Enrique Ledezma , Ryan Edwards
发明人： Mehdi Abolhassani , Thomas Keister , Alex Skorcz , Enrique Ledezma , Ryan Edwards
IPC分类号： H02M1/12
CPC分类号： H02M7/49 , H02M5/4585
摘要： In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a second subset of the power cells are configured to provide power to the load but not perform partial regeneration. A controller may be included in the system to simultaneously control a DC bus voltage of at least one of the first subset of the power cells, correct a power factor of the system, and provide harmonic current compensation for the system.
摘要翻译：在一个实施例中，本发明包括具有多个功率单元的中压驱动系统，每个功率单元在变压器和负载之间耦合。功率单元的第一子集被配置为向负载提供电力并且从负载执行部分再生，并且功率单元的第二子集被配置为向负载提供电力但不执行部分再生。控制器可以包括在系统中以同时控制功率单元的第一子集中的至少一个的DC总线电压，校正系统的功率因数，并为系统提供谐波电流补偿。

7. 发明申请

US20110044010A1 PLUGGABLE POWER CELL FOR AN INVERTER 有权
标题翻译：用于逆变器的可插拔电源单元
公开(公告)号：US20110044010A1
公开(公告)日：2011-02-24
申请号：US12845406
申请日：2010-07-28
申请人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
发明人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
IPC分类号： H05K7/14
CPC分类号： H05K7/1432 , H02M7/003
摘要： In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.
摘要翻译：在一个实施例中，用于驱动系统的功率单元室包括可移动和固定部分。可移动部分包括整流级，以对从变压器的次级绕组接收的输入信号进行整流以提供整流信号;以及逆变器级，具有多个开关器件以接收DC信号并输出AC信号。该可移动部分可滑动地适配于驱动系统的机柜内。反过来，固定部分包括具有至少一个电容器的DC链路，用于接收整流信号并将DC信号提供给逆变器级。

8. 发明申请

US20110013428A1 MODULAR MULTI-PULSE TRANSFORMER RECTIFIER FOR USE IN ASYMMETRIC MULTI-LEVEL POWER CONVERTER 有权
标题翻译：用于不对称多级电源转换器的多模多脉冲变压器整流器
公开(公告)号：US20110013428A1
公开(公告)日：2011-01-20
申请号：US12890959
申请日：2010-09-27
申请人： MEHDI ABOLHASSANI , Ryan Edwards , Thomas Keister , Alex Skorcz , Enrique Ledezma , Chao Hsu Liao
发明人： MEHDI ABOLHASSANI , Ryan Edwards , Thomas Keister , Alex Skorcz , Enrique Ledezma , Chao Hsu Liao
IPC分类号： H02M5/45
CPC分类号： H02M7/49 , H02M5/4585 , Y10T307/707
摘要： In one embodiment, the present invention includes a system having multiple modular transformers each including a primary winding coupled to an input power source and phase-shifted secondary windings each coupled to a power cell. The system further includes different phase output lines coupled to a load. These lines may include first, second and third phase output lines.
摘要翻译：在一个实施例中，本发明包括具有多个模块化变压器的系统，每个模块化变压器包括耦合到输入电源的初级绕组和每个耦合到功率单元的相移次级绕组。该系统还包括耦合到负载的不同相输出线。这些线可以包括第一，第二和第三相输出线。

9. 发明授权

US08130501B2 Pluggable power cell for an inverter 有权
标题翻译：用于变频器的可插拔电源
公开(公告)号：US08130501B2
公开(公告)日：2012-03-06
申请号：US12495359
申请日：2009-06-30
申请人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
发明人： Enrique Ledezma , Thomas Keister , Mehdi Abolhassani , Ryan Edwards , Alex Skorcz , Randall Pipho , Srinivas Satumahanti
IPC分类号： H01H33/32 , H01R13/62
CPC分类号： H05K7/14 , H02M7/003 , H02M7/49 , H05K7/1432 , Y10T307/297
摘要： In one embodiment, a power cell chamber for a drive system includes moveable and fixed portions. The moveable portion includes a rectifier stage to rectify an input signal received from a secondary winding of a transformer to provide a rectified signal and an inverter stage having a plurality of switching devices to receive a DC signal and output an AC signal. This moveable portion can be slidably adapted within a cabinet of the drive system. In turn, the fixed portion includes a DC link having at least one capacitor to receive the rectified signal and provide the DC signal to the inverter stage.
摘要翻译：在一个实施例中，用于驱动系统的功率单元室包括可移动和固定部分。可移动部分包括整流级，以对从变压器的次级绕组接收的输入信号进行整流以提供整流信号;以及逆变器级，具有多个开关器件以接收DC信号并输出AC信号。该可移动部分可滑动地适配于驱动系统的机柜内。反过来，固定部分包括具有至少一个电容器的DC链路，用于接收整流信号并将DC信号提供给逆变器级。

10. 发明申请

US20110215890A1 Providing A Transformer For An Inverter 有权
标题翻译：为变频器提供变压器
公开(公告)号：US20110215890A1
公开(公告)日：2011-09-08
申请号：US13050064
申请日：2011-03-17
申请人： Mehdi Abolhassani , Manzoor Hussain
发明人： Mehdi Abolhassani , Manzoor Hussain
IPC分类号： H01F27/08 , H01F27/02 , H01F7/06
CPC分类号： H01F7/06 , H01F27/02 , H01F27/025 , H01F27/08 , H01F27/085 , H02M7/49 , Y10T29/49071
摘要： In one embodiment, a transformer is provided for coupling between a utility connection and a plurality of power cells of a drive system. The transformer may be of a horizontal arrangement and include a housing and a core configured within the housing and having multiple columns each adapted along a horizontal axis. Each column corresponds to a phase, and each phase includes a coil having primary winding and multiple secondary windings concentrically adapted about the column horizontal axis to provide an air gap between adjacent ones of the primary and secondary windings. In addition, the transformer may include a baffler adapted about the core and configured within the housing to prevent air flow at a periphery of the coils and to direct air flow through the air gaps of the coils.
摘要翻译：在一个实施例中，提供了用于在公用设施连接和驱动系统的多个功率单元之间耦合的变压器。变压器可以是水平布置，并且包括壳体和配置在壳体内的芯体，并且具有沿着水平轴线适应的多个柱体。每个列对应于一个相位，并且每个相位包括具有初级绕组和多个次级绕组的线圈，该线圈同心地围绕列水平轴线适配，以在相邻的初级和次级绕组之间提供气隙。此外，变压器可以包括围绕芯部配置的挡板，并且构造在壳体内以防止在线圈的周边处的空气流动并且引导空气流过线圈的空气间隙。

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