公开(公告)号：US06617814B1

公开(公告)日：2003-09-09

申请号：US09832389

申请日：2001-04-11

申请人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

发明人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

IPC分类号： H02M5458

CPC分类号： H02M5/4585 ,  H01F27/34 ,  H01F37/00

摘要： A motor drive and a choke therefor are disclosed, wherein the choke comprises a magnetic core with an inner leg and two outer legs, and four coils, which may be connected in DC current paths in the motor drive. First and second differential coils are wound around first and second outer legs, respectively; and first and second common-mode coils are wound around the inner leg of the choke. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. Also disclosed is a method for suppressing common-mode voltages in a motor drive.

摘要翻译： 公开了一种电动机驱动器和扼流器，其中扼流器包括具有内腿和两个外腿的磁芯，以及四个线圈，其可以连接在电动机驱动器中的直流电流路径中。 第一和第二差动线圈分别绕第一和第二外腿缠绕; 并且第一和第二共模线圈缠绕在扼流器的内腿上。 第一和第二差分线圈平滑电动机驱动器中的直流母线上的直流电流，并且第一和第二共模线圈抑制电动机驱动中的共模电压。 还公开了一种用于抑制电动机驱动中的共模电压的方法。

公开(公告)号：US07495938B2

公开(公告)日：2009-02-24

申请号：US11354597

申请日：2006-02-14

申请人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zargari ,  Congwei Liu ,  Weixing Feng

发明人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zargari ,  Congwei Liu ,  Weixing Feng

IPC分类号： H02M1/12 ,  H02M7/521

CPC分类号： H02M7/487 ,  H02M2007/53876

摘要： Three-level inverter and rectifier power conversion systems and space vector modulation (SVM) controls having even-order harmonic elimination for neutral voltage balancing with a predefined vector switching sequences for half-wave symmetry in open loop system operation. The vector sequence listings for each SVM diagram segment includes switching state entries individually indicating one of three possible switching state levels positive (P), zero (0), or negative (N) for each of three or more switching groups of the power conversion system, with listings for each pair of first and second diametrically opposite diagram segments include symmetrically opposite switching states, with positive levels in the entries of the listing for the first segment corresponding to negative levels in the entries of the listing for the second segment and vice versa.

摘要翻译： 三电平逆变器和整流器电力转换系统和空间矢量调制（SVM）控制，具有用于中性电压平衡的偶次谐波消除，并具有用于开环系统操作中的半波对称的预定向量切换序列。 每个SVM图段的矢量序列列表包括分别指示功率转换系统的三个或更多个开关组中的每一个的三个可能切换状态电平正（P），零（0）或负（N）中的一个的切换状态条目 ，每对第一和第二完全相反的图段的列表包括对称相反的切换状态，对于第一段的列表的条目中的正电平对应于第二段的列表的条目中的负电平，反之亦然 。

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。

公开(公告)号：US06867564B1

公开(公告)日：2005-03-15

申请号：US10463986

申请日：2003-06-18

申请人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

发明人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

IPC分类号： H01F27/34 ,  H01F37/00 ,  H02M5/458 ,  H01F21/08

CPC分类号： H02M5/4585 ,  H01F27/34 ,  H01F37/00

摘要： A motor drive and a choke therefor are disclosed, wherein the choke comprises a magnetic core with an inner leg and two outer legs, and four coils, which may be connected in DC current paths in the motor drive. First and second differential coils are wound around first and second outer legs, respectively; and first and second common-mode coils are wound around the inner leg of the choke. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. Also disclosed is a method for suppressing common-mode voltages in a motor drive.

摘要翻译： 公开了一种电动机驱动器和扼流器，其中扼流器包括具有内腿和两个外腿的磁芯，以及四个线圈，其可以连接在电动机驱动器中的直流电流路径中。 第一和第二差动线圈分别缠绕在第一和第二外腿上; 并且第一和第二共模线圈缠绕在扼流圈的内腿上。 第一和第二差分线圈平滑电动机驱动器中的直流母线上的直流电流，并且第一和第二共模线圈抑制电动机驱动中的共模电压。 还公开了一种用于抑制电动机驱动中的共模电压的方法。

公开(公告)号：US07132812B1

公开(公告)日：2006-11-07

申请号：US11245849

申请日：2005-10-07

申请人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

发明人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

IPC分类号： H02P7/00 ,  H02H7/08

CPC分类号： H02M5/4505 ,  H01F3/14 ,  H01F27/28 ,  H01F37/00 ,  H01F41/02 ,  H01F2017/0093 ,  H02M2001/123

摘要： A motor drive and a choke therefor are disclosed, wherein the choke comprises a magnetic core with an inner leg and two outer legs, and four coils, which may be connected in DC current paths in the motor drive. First and second differential coils are wound around first and second outer legs, respectively; and first and second common-mode coils are wound around the inner leg of the choke. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. Also disclosed is a method for suppressing common-mode voltages in a motor drive.

公开(公告)号：US06987372B1

公开(公告)日：2006-01-17

申请号：US10997225

申请日：2004-11-24

申请人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

发明人： Bin Wu ,  Steven C. Rizzo ,  Navid R. Zagari ,  Yuan Xiao

IPC分类号： H02M5/458

CPC分类号： H02M5/4585

摘要： A motor drive and a choke therefor are disclosed, wherein the choke comprises a magnetic core with an inner leg and two outer legs, and four coils, which may be connected in DC current paths in the motor drive. First and second differential coils are wound around first and second outer legs, respectively; and first and second common-mode coils are wound around the inner leg of the choke. The first and second differential coils smooth the DC current on a DC bus in the motor drive, and the first and second common-mode coils suppress common-mode voltages in the motor drive. Also disclosed is a method for suppressing common-mode voltages in a motor drive.

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。

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。