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1. 发明申请

US20120194202A1 DRIVE FAILURE PROTECTION 有权
标题翻译：驱动故障保护
公开(公告)号：US20120194202A1
公开(公告)日：2012-08-02
申请号：US13016111
申请日：2011-01-28
申请人： Yuan Xiao , Lixiang Wei , Doyle F. Busse
发明人： Yuan Xiao , Lixiang Wei , Doyle F. Busse
IPC分类号： G01R31/28
CPC分类号： G01R31/2843 , G01R31/42 , H02H7/0811 , H02H7/1203 , H02H7/16 , H02J3/1821 , H02J3/26 , H02M1/42 , H02M5/458 , H02P29/0241 , Y02E40/30 , Y02E40/50
摘要： The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.
摘要翻译：本技术包括用于检测电驱动系统的电容器组中的故障的方法和系统。实施例包括使用放电电阻器对电容器组中的电容器进行放电，形成电容器组的中性点。在不同的电容器配置中，测量中性点，并分析电压以确定电容器组是否发生不平衡。在一些实施例中，节点是放电电阻器的放电侧和电容器组的中性侧之间或放电电阻器的放电侧和第二组放电的放电侧之间的中性点至中性节点电阻在一些实施例中，节点是放电电阻器的放电侧和接地电位之间的中性点对地节点。

2. 发明授权

US08643383B2 Drive failure protection 有权
标题翻译：驱动器故障保护
公开(公告)号：US08643383B2
公开(公告)日：2014-02-04
申请号：US13016111
申请日：2011-01-28
申请人： Yuan Xiao , Lixiang Wei , Doyle F. Busse
发明人： Yuan Xiao , Lixiang Wei , Doyle F. Busse
IPC分类号： G01R31/12 , H01G2/12 , G05B5/00
CPC分类号： G01R31/2843 , G01R31/42 , H02H7/0811 , H02H7/1203 , H02H7/16 , H02J3/1821 , H02J3/26 , H02M1/42 , H02M5/458 , H02P29/0241 , Y02E40/30 , Y02E40/50
摘要： The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.
摘要翻译：本技术包括用于检测电驱动系统的电容器组中的故障的方法和系统。实施例包括使用放电电阻器对电容器组中的电容器进行放电，形成电容器组的中性点。在不同的电容器配置中，测量中性点，并分析电压以确定电容器组是否发生不平衡。在一些实施例中，节点是放电电阻器的放电侧和电容器组的中性侧之间或放电电阻器的放电侧和第二组放电的放电侧之间的中性点至中性节点电阻在一些实施例中，节点是放电电阻器的放电侧和接地电位之间的中性点对地节点。

3. 发明授权

US08953296B2 AC pre-charge circuit 有权
标题翻译：交流预充电电路
公开(公告)号：US08953296B2
公开(公告)日：2015-02-10
申请号：US13548753
申请日：2012-07-13
申请人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
发明人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
IPC分类号： H02H1/00 , H02H7/125 , H02H9/00
CPC分类号： H02H7/125 , H02H9/001
摘要： AC pre-charging techniques are provided for pre-charging the DC bus on a motor drive. AC pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, etc. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect a motor drive from the AC power supply under certain fault conditions.
摘要翻译：提供AC预充电技术，用于在电机驱动器上对DC总线进行预充电。 AC预充电技术涉及预充电电路，包括手动开关，自动开关和预充电控制电路，以响应于初始化的预充电操作来在预充电和预充电旁路模式之间切换自动开关，输入电压下降等。在一些实施例中，可以通过将手动开关闭合来初始化预充电操作。在一些实施例中，预充电操作也可以由DC总线上的检测到的电压暂降来初始化。预充电电路还可以被配置为在某些故障条件下将电动机驱动器与AC电源断开。

4. 发明申请

US20130121051A1 DC PRE-CHARGE CIRCUIT 有权
公开(公告)号：US20130121051A1
公开(公告)日：2013-05-16
申请号：US13548685
申请日：2012-07-13
申请人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
发明人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
IPC分类号： H02M7/537
CPC分类号： H02P6/20 , H02H7/09 , H02M7/48 , H02M7/537 , H02P6/04 , H02P6/28
摘要： Systems and methods are provided for pre-charging the DC bus on a motor drive. Pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, and so forth. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect to isolate a motor drive from the common DC bus under certain fault conditions.

5. 发明授权

US09042146B2 DC pre-charge circuit 有权
标题翻译：直流预充电电路
公开(公告)号：US09042146B2
公开(公告)日：2015-05-26
申请号：US13548685
申请日：2012-07-13
申请人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
发明人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
IPC分类号： H02M7/537 , H02H7/09 , H02M7/48
CPC分类号： H02P6/20 , H02H7/09 , H02M7/48 , H02M7/537 , H02P6/04 , H02P6/28
摘要： Systems and methods are provided for pre-charging the DC bus on a motor drive. Pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, and so forth. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect to isolate a motor drive from the common DC bus under certain fault conditions.
摘要翻译：提供的系统和方法用于在电机驱动器上对DC总线进行预充电。预充电技术涉及预充电电路，包括手动开关，自动开关和预充电控制电路，以响应于初始化的预充电操作，输入的预充电和预充电旁路模式来切换自动开关电压骤降等。在一些实施例中，预充电操作可以通过关闭手动开关来初始化。在一些实施例中，预充电操作也可以由DC总线上的检测到的电压暂降来初始化。预充电电路还可以被配置为在某些故障条件下将电动机驱动器与公共DC总线隔离。

6. 发明申请

US20130119903A1 AC PRE-CHARGE CIRCUIT 有权
标题翻译：交流预充电电路
公开(公告)号：US20130119903A1
公开(公告)日：2013-05-16
申请号：US13548753
申请日：2012-07-13
申请人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
发明人： Bruce W. Weiss , Doyle F. Busse , Jeremy J. Keegan , Lixiang Wei , Michael W. Loth , Rangarajan M. Tallam , Yogesh Patel
IPC分类号： H02H7/125 , H02P27/04
CPC分类号： H02H7/125 , H02H9/001
摘要： AC pre-charging techniques are provided for pre-charging the DC bus on a motor drive. AC pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, etc. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect a motor drive from the AC power supply under certain fault conditions.
摘要翻译：提供AC预充电技术，用于在电机驱动器上对DC总线进行预充电。 AC预充电技术涉及预充电电路，包括手动开关，自动开关和预充电控制电路，以响应于初始化的预充电操作来在预充电和预充电旁路模式之间切换自动开关，输入电压下降等。在一些实施例中，可以通过将手动开关闭合来初始化预充电操作。在一些实施例中，预充电操作也可以由DC总线上的检测到的电压暂降来初始化。预充电电路还可以被配置为在某些故障条件下将电动机驱动器与AC电源断开。

7. 发明申请

US20140042817A1 METHOD AND APPARATUS FOR BYPASSING CASCADED H-BRIDGE (CHB) POWER CELLS AND POWER SUB CELL FOR MULTILEVEL INVERTER 有权
标题翻译：用于多路逆变器的嵌入式H桥（CHB）电源和电源单元的方法和装置
公开(公告)号：US20140042817A1
公开(公告)日：2014-02-13
申请号：US13572995
申请日：2012-08-13
申请人： Navid Zargari , Yuan Xiao , Lixiang Wei
发明人： Navid Zargari , Yuan Xiao , Lixiang Wei
IPC分类号： H02J3/00
CPC分类号： H02M1/32 , H02M7/49 , H02M2001/325 , Y10T307/658 , Y10T307/685
摘要： Bypassing methods and apparatus are presented along with power cells and sub cells for multilevel inverters in which DC current flow into a DC link capacitance is interrupted and a bypass switch is closed across a power cell or sub cell output to selectively bypass a power stage of a multilevel inverter.
摘要翻译：旁路方法和装置与用于多电平逆变器的功率单元和子单元一起呈现，其中直流电流流入直流链路电容被中断，并且旁路开关在功率单元或子单元输出周围闭合以选择性地旁路功率级多电平逆变器

8. 发明申请

US20130141950A1 POWER CONVERTER AND INTEGRATED DC CHOKE THEREFOR 有权
公开(公告)号：US20130141950A1
公开(公告)日：2013-06-06
申请号：US13756655
申请日：2013-02-01
申请人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
发明人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
IPC分类号： H02J3/36
CPC分类号： H02J3/36 , H01F3/12 , H01F30/06 , H01F37/00 , H01F38/023 , H01F2038/026 , H02M1/14 , H02M5/4585 , H02M2001/123
摘要： A power conversion system and a DC link choke therefore are presented, in which a continuous core structure is provided with first and second legs around which four or more windings are located, with one or more shunt structures providing a magnetic flux path between intermediate portions of the first and second legs.

9. 发明授权

US09240731B2 Power cell bypass method and apparatus for multilevel inverter 有权
标题翻译：多电平逆变器的电池旁路方法及装置
公开(公告)号：US09240731B2
公开(公告)日：2016-01-19
申请号：US13845416
申请日：2013-03-18
申请人： Lixiang Wei , Yuan Xiao , Haihui Lu , Douglas B. Weber
发明人： Lixiang Wei , Yuan Xiao , Haihui Lu , Douglas B. Weber
IPC分类号： H02M5/45 , H02M5/458 , H02M7/49 , H02M1/32
CPC分类号： H02M5/458 , H02M7/49 , H02M2001/325
摘要： Multilevel inverters, power cells and bypass methods are presented in which a power cell switching circuit is selectively disconnected from the power cell output, and a bypass which is closed to connect first and second cell output terminals to selectively bypass a power stage of a multilevel inverter, with an optional AC input switch to selectively disconnect the AC input from the power cell switching circuit during bypass.
摘要翻译：提出了多电平逆变器，功率单元和旁路方法，其中功率单元开关电路与功率单元输出选择性地断开，并且闭合的旁路连接第一和第二单元输出端子以选择性地旁路多电平逆变器的功率级具有可选的AC输入开关，用于在旁路期间选择性地断开AC电源与电源开关电路的输入。

10. 发明授权

US08379417B2 Power converter and integrated DC choke therefor 有权
公开(公告)号：US08379417B2
公开(公告)日：2013-02-19
申请号：US13177100
申请日：2011-07-06
申请人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
发明人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng , Lixiang Wei
IPC分类号： H02M5/45 , H01F27/36
CPC分类号： H02J3/36 , H01F3/12 , H01F30/06 , H01F37/00 , H01F38/023 , H01F2038/026 , H02M1/14 , H02M5/4585 , H02M2001/123
摘要： A power conversion system and a DC link choke therefore are presented, in which a continuous core structure is provided with first and second legs around which four or more windings are located, with one or more shunt structures providing a magnetic flux path between intermediate portions of the first and second legs.

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