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11. 发明授权

US6166929A CSI based drive having active damping control 有权
标题翻译：基于CSI的驱动器具有主动阻尼控制
公开(公告)号：US6166929A
公开(公告)日：2000-12-26
申请号：US515289
申请日：2000-02-29
申请人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
发明人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
IPC分类号： H02M5/45 , H02P5/74 , H02M7/155
CPC分类号： H02P5/74 , H02M5/4505
摘要： A multi-motor drive in which the resonance existing between one or more output filter capacitors of a current source inverter and an a.c. induction motor is reduced. The inverter features a switching pattern generator which controls the power switches of the inverter based on a reference current. A control loop, connected to the switching pattern generator, measures the load current or voltage and generates a nominal reference current based on an error therein; determines a damping current based on the voltage at the terminal; and determines the reference current supplied to the switching pattern generator by subtracting the damping current from the nominal reference current. The invention essentially simulates the use of a physical damping resistor connected in parallel with each output filter capacitor, but without the corresponding energy loss. This form of active damping control is also applied to a resonance mode existing between the input filter capacitors of a PWM-based rectifier and the system inductance of a power source.
摘要翻译：存在于电流源逆变器的一个或多个输出滤波电容器与交流电源之间的共振的多电动机驱动。感应电动机减少。逆变器具有开关模式发生器，其基于参考电流来控制逆变器的功率开关。连接到开关模式发生器的控制回路测量负载电流或电压，并基于其中的误差产生标称参考电流; 基于端子处的电压确定阻尼电流; 并且通过从标称参考电流减去阻尼电流来确定提供给开关模式发生器的参考电流。本发明基本上模拟了与每个输出滤波电容器并联连接但没有相应的能量损耗的物理阻尼电阻器的使用。这种形式的主动阻尼控制也适用于存在于基于PWM的整流器的输入滤波电容器与电源的系统电感之间的谐振模式。

12. 发明授权

US06366483B1 PWM rectifier having de-coupled power factor and output current control loops 有权
标题翻译： PWM整流器具有去耦功率因数和输出电流控制回路
公开(公告)号：US06366483B1
公开(公告)日：2002-04-02
申请号：US09621847
申请日：2000-07-24
申请人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
发明人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
IPC分类号： H02M542
CPC分类号： H02M1/4216 , H02M5/4505 , H02M2007/53876 , Y02B70/126 , Y02P80/112
摘要： A PWM rectifier wherein the switching bridge has m input filter capacitors, each connected at a terminal thereof, to the line side of the bridge. These terminals are used to connect an m-phase a.c. power supply (m>=1) having a per phase system inductance to the bridge. A current smoothing inductor is connected to the load side of the bridge and enables a load to be connected thereto. A switching pattern generator controls the switches in the switching bridge based on a reference output current. A first control loop is provided for determining an active portion of the reference output current based on a desired power level of the load and an m-phase voltage at the capacitor terminals. A second control loop is provided for determining a reactive portion of the reference output current based on the m-phase voltage at the capacitor terminals. The reactive portion of the current is selected so as to obtain a desired per phase power factor, such as unity, on the power supply. In this manner the output current and power factor control loops are independent of and not coupled to one another.
摘要翻译：一种PWM整流器，其中开关桥具有m个输入滤波电容器，每个输入滤波电容器的一端连接到桥的线路侧。这些端子用于连接m相a.c. 电源（m> = 1）具有每桥相的系统电感。电流平滑电感器连接到桥的负载侧，并使负载能够与其连接。开关模式发生器基于参考输出电流控制开关桥中的开关。提供第一控制环路，用于基于负载的期望功率电平和电容器端子处的m相电压来确定参考输出电流的有效部分。提供第二控制回路，用于基于电容器端子处的m相电压来确定参考输出电流的无功部分。选择电流的无功部分以便在电源上获得期望的每相功率因数，例如单位。以这种方式，输出电流和功率因数控制环路彼此独立并且不耦合。

13. 发明授权

US06269010B1 CSI based drive having feedforward control of inverter input voltage 有权
标题翻译：基于CSI的变频器具有变频器输入电压的前馈控制
公开(公告)号：US06269010B1
公开(公告)日：2001-07-31
申请号：US09516974
申请日：2000-02-29
申请人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
发明人： Daming Ma , Bin Wu , Navid R. Zargari , Steven C. Rizzo
IPC分类号： H02J336
CPC分类号： H02M5/4505 , H02M2001/0022
摘要： The drive for an a.c. induction motor features a rectifier for converting alternating current into direct current and a current source inverter for converting direct current into alternating current supplied to a motor. A d.c. link choke interconnects the rectifier and the inverter. The inverter includes a first control loop which provides a desired or command d.c. link choke current to a second control loop responsible for the rectifier. For the purposes of the second control loop the actual d.c. link choke current and an input voltage of the inverter are detected. The difference or error between the desired and actual d.c. choke currents are minimized by a compensator. The output of the compensator is added to the detected inverter input voltage, and the sum is fed to a switching pattern generator which controls the switches in the rectifier. In this manner the feedback of the inverter input voltage is decoupled from the compensator responsible for the d.c. link choke current. This makes the parameters of the second control loop substantially independent of the load, thereby enhancing the ease with which the control loop may be tuned and hence the stability of the drive.
摘要翻译： a.c.的驱动感应电动机具有用于将交流电转换成直流电的整流器和用于将直流电转换成供应给电动机的交流电流的电流源逆变器。一个d.c. 连接扼流圈将整流器和逆变器互连。逆变器包括第一控制回路，其提供期望的或命令直流。将扼流电流连接到负责整流器的第二控制回路。为了第二个控制循环的目的，实际的直流检测到连接扼流电流和逆变器的输入电压。期望和实际直流之间的差异或误差扼流电流被补偿器最小化。补偿器的输出被加到检测到的逆变器输入电压中，并且该和被馈送到控制整流器中的开关的开关模式发生器。以这种方式，逆变器输入电压的反馈与负责直流的补偿器分离。连接扼流电流。这使得第二控制回路的参数基本上与负载无关，从而增强了可以调节控制回路的容易程度，从而提高了驱动器的稳定性。

14. 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.

15. 发明申请

US20130063991A1 VOLTAGE CONVERTER CONFIGURATIONS FOR SOLAR ENERGY SYSTEM APPLICATIONS 审中-公开
标题翻译：太阳能系统应用的电压转换器配置
公开(公告)号：US20130063991A1
公开(公告)日：2013-03-14
申请号：US13595740
申请日：2012-08-27
申请人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng
发明人： Yuan Xiao , Navid R. Zargari , Zhongyuan Cheng
IPC分类号： H02M7/48
CPC分类号： H02M7/48 , H02J3/383 , Y02E10/563
摘要： A system includes a low switching frequency power converter configured to be coupled to a solar cell, wherein the low switching frequency power converter is configured to generate alternating current (AC) power based on low voltage direct current (DC) power transmitted from the solar cell and transmit the converted AC power. The system also include a multi-pulse transformer configured to receive the converted AC power and generate transformed power based on the converted AC power, wherein the transformed power comprises power at a voltage level that differs from the a voltage level of the converted AC power.
摘要翻译：一种系统包括配置为耦合到太阳能电池的低开关频率功率转换器，其中低开关频率功率转换器被配置为基于从太阳能电池传输的低压直流（DC）功率产生交流（AC）功率并传送转换后的交流电源。该系统还包括多脉冲变压器，其被配置为接收经转换的AC电力并基于转换的AC电力产生变换的功率，其中变换的功率包括不同于转换的AC功率的电压电平的电压电平的功率。

16. 发明授权

US08537575B2 Power converter and integrated DC choke therefor 有权
标题翻译：电源转换器和集成直流电抗器
公开(公告)号：US08537575B2
公开(公告)日：2013-09-17
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： 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.
摘要翻译：因此，提出了一种电力转换系统和直流链路扼流圈，其中连续的芯结构设置有围绕四个或更多个绕组定位的第一和第二支脚，一个或多个分流结构提供在第一和第二条腿。

17. 发明申请

US20120212982A1 CMV REDUCTION UNDER BUS TRANSIENT CONDITION 有权
标题翻译：在总体瞬态条件下减少CMV
公开(公告)号：US20120212982A1
公开(公告)日：2012-08-23
申请号：US13029209
申请日：2011-02-17
申请人： Lixiang Wei , Yuan Xiao , Richard Lukaszewski , Navid R. Zargari
发明人： Lixiang Wei , Yuan Xiao , Richard Lukaszewski , Navid R. Zargari
IPC分类号： H02M5/45
CPC分类号： H02M5/4585 , H02P27/06 , H02P29/0241 , H02P2201/13
摘要： Power conversion systems and control techniques are presented in which a bus transient control component bypasses selected phases of a rectifier during a protective mode of operation to reduce common mode voltages or currents.
摘要翻译：提供了功率转换系统和控制技术，其中总线瞬态控制组件在保护操作模式期间绕过整流器的选定相以减少共模电压或电流。

18. 发明授权

US08570775B2 CMV reduction under bus transient condition 有权
标题翻译：总线瞬态条件下CMV降低
公开(公告)号：US08570775B2
公开(公告)日：2013-10-29
申请号：US13029209
申请日：2011-02-17
申请人： Lixiang Wei , Yuan Xiao , Richard Lukaszewski , Navid R. Zargari
发明人： Lixiang Wei , Yuan Xiao , Richard Lukaszewski , Navid R. Zargari
IPC分类号： H02M1/12 , H02H7/122
CPC分类号： H02M5/4585 , H02P27/06 , H02P29/0241 , H02P2201/13
摘要： Power conversion systems and control techniques are presented in which a bus transient control component bypasses selected phases of a rectifier during a protective mode of operation to reduce common mode voltages or currents.
摘要翻译：提供了功率转换系统和控制技术，其中总线瞬态控制组件在保护操作模式期间绕过整流器的选定相以减少共模电压或电流。

19. 发明申请

US20120201056A1 POWER CONVERTER WITH COMMON MODE VOLTAGE REDUCTION 有权
标题翻译：具有共模电压降低功率转换器
公开(公告)号：US20120201056A1
公开(公告)日：2012-08-09
申请号：US13024056
申请日：2011-02-09
申请人： Lixiang Wei , Zhongyuan Cheng , Yuan Xiao , Navid R. Zargari
发明人： Lixiang Wei , Zhongyuan Cheng , Yuan Xiao , Navid R. Zargari
IPC分类号： H02M5/45 , H02M5/293
CPC分类号： H02M5/4585 , H02M7/53873 , H02M7/53875 , H02M7/5395 , H02M2001/123 , H02P21/0003 , H02P27/08
摘要： Power conversion systems are presented with common mode reduction by space vector pulse width modulation zero vector selection to counteract common mode contribution of active vectors.
摘要翻译：电力转换系统通过空间矢量脉宽调制零矢量选择呈现共模减小，以抵消有源矢量的共模贡献。

20. 发明授权

US07965526B2 Self powered supply for power converter switch driver 有权
标题翻译：自供电电源转换器开关驱动
公开(公告)号：US07965526B2
公开(公告)日：2011-06-21
申请号：US12423891
申请日：2009-04-15
申请人： Navid R. Zargari , Zhongyuan Cheng , Angelo R. Bortolus
发明人： Navid R. Zargari , Zhongyuan Cheng , Angelo R. Bortolus
IPC分类号： H02H7/10
CPC分类号： H02M1/08 , H02M1/096 , H02M1/34 , H02M2001/0006 , H02M2001/348 , H03K2217/0081
摘要： Self-powered supplies with on-board diagnostics are presented for powering a power converter switch driver with power obtained from an associated snubber circuit, including a first converter stage with a full bridge rectifier with a crowbar circuit creating a first DC bus and a second stage with an isolated DC to DC converter, and on-board diagnostics to indicate snubber failures and abnormal conditions of the self-powered supply.
摘要翻译：提供具有车载诊断功能的自供电源，用于从相关的缓冲电路获得的功率为功率转换器开关驱动器供电，包括具有全桥整流器的第一转换器级，其具有创建第一DC总线的第二级总线和第二级具有隔离的DC到DC转换器，以及车载诊断以指示缓冲器故障和自供电的异常状况。

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