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：US07375934B2

公开(公告)日：2008-05-20

申请号：US10944199

申请日：2004-09-20

申请人： Zheng Wang ,  Jack Daming Ma ,  George You Zhou

发明人： Zheng Wang ,  Jack Daming Ma ,  George You Zhou

IPC分类号： H02H5/04

CPC分类号： H02P29/02

摘要： A method and apparatus control a power converter (20) of a motor drive system. The power converter (20) is controlled during a first operating mode by applying a current control scheme, which sets power converter commands to control active and reactive current components flowing from the power converter (20) to the motor (30) to achieve desired motor speed; and a fault protection scheme is executed during a second operating mode. The fault protection scheme generates power converter commands to reduce the active current component flowing from the power converter (20) to the motor (30) is substantially zero. The first operating mode will be resumed upon receiving the restart command if the motor speed is above a pre-set shutdown threshold.

摘要翻译： 一种控制电机驱动系统的功率转换器（20）的方法和装置。 功率转换器（20）在第一操作模式期间通过施加电流控制方案来控制，该电流控制方案设置功率转换器命令以控制从功率转换器（20）流向电动机（30）的有功和无功电流分量，以实现期望的电动机 速度; 并且在第二操作模式期间执行故障保护方案。 故障保护方案产生功率转换器命令以减少从功率转换器（20）流向电机（30）的有效电流分量基本为零。 如果电机转速高于预设的关机阈值，则在接收到重启命令后，第一个运行模式将被恢复。

公开(公告)号：US06965212B1

公开(公告)日：2005-11-15

申请号：US10998721

申请日：2004-11-30

申请人： Zheng Wang ,  Jack Daming Ma ,  George You Zhou

发明人： Zheng Wang ,  Jack Daming Ma ,  George You Zhou

IPC分类号： H02P21/00 ,  H02P21/06 ,  H02P5/28

CPC分类号： H02P21/06 ,  H02P21/22

摘要： A method and apparatus control a power converter (20) of an AC motor drive system (10). The method and apparatus: generate a field current regulating signal to control a field current component flowing from the power converter (20) to the AC motor (30), thereby achieving field current regulation; generate a torque current regulating signal to control a torque current component flowing from the power converter (20) to the AC motor (30), thereby achieving torque current regulation, the torque current regulation having lower priority than the field current regulation; and execute a close-loop field weakening control scheme, which generates a field weakening control command as a function of the difference between a torque current regulation voltage demand and voltage available for torque current regulation. The field current regulating signal is adjusted in accordance with the field weakening control signal to selectively reduce back EMF of the AC motor (30), thereby enabling the step of generating a toque current regulating signal to achieve a toque current component needed to drive the AC motor (30) at a desired speed despite a limitation on DC voltage available to the power converter (20).

摘要翻译： 一种控制交流电动机驱动系统（10）的功率转换器（20）的方法和装置。 该方法和装置：产生励磁电流调节信号，以控制从电力转换器（20）流向AC电动机（30）的励磁电流分量，从而实现励磁电流调节; 产生转矩电流调节信号，以控制从功率转换器（20）流向AC电动机（30）的转矩电流分量，从而实现转矩电流调节，转矩电流调节的优先级低于励磁电流调节; 并执行闭环弱磁控制方案，其产生弱磁控制指令作为转矩电流调节电压需求和可用于转矩电流调节的电压之间的差的函数。 根据减弱弱磁控制信号调整励磁电流调节信号，以选择性地减小AC电动机（30）的反向EMF，从而使得能够产生变矩电流调节信号的步骤以实现驱动AC所需的转矩电流分量 电动机（30）以期望的速度，尽管限制了可用于功率转换器（20）的直流电压。

公开(公告)号：US06850426B2

公开(公告)日：2005-02-01

申请号：US10404513

申请日：2003-04-01

申请人： Hassan A. Kojori ,  Jack Daming Ma ,  Zheng Wang ,  George You Zhou

发明人： Hassan A. Kojori ,  Jack Daming Ma ,  Zheng Wang ,  George You Zhou

IPC分类号： H02M7/12 ,  H02M3/00 ,  H02M3/335 ,  H02M7/00 ,  H02M7/219

CPC分类号： H02M7/797 ,  H02P23/0004

摘要： A synchronous bi-directional active power conditioning system (11) suitable for wide variable frequency systems or active loads such as adjustable speed drives which require variable voltage variable frequency power management systems is disclosed. Common power electronics building blocks (100, 200) (both hardware and software modular blocks) are presented which can be used for AC-DC, DC-AC individually or cascaded together for AC-DC-AC power conversion suitable for variable voltage and/or wide variable frequency power management systems. A common control software building block (2, 5) includes a digital control strategy/algorithm and digital phase lock loop method and apparatus which are developed and implemented in a digital environment to provide gating patterns for the switching elements (3, 6) of the common power-pass modular power electronics building blocks (100, 200).

摘要翻译： 公开了一种适用于宽变频系统或有源负载的同步双向有源功率调节系统（11），例如需要可变电压可变频率功率管理系统的可变速驱动器。 提供了共同的电力电子构件（100,200）（硬件和软件模块化块），可以单独用于AC-DC，DC-AC或级联在一起用于适用于可变电压和/ 或宽变频电源管理系统。 公共控制软件构建块（2,5）包括在数字环境中开发和实现的数字控制策略/算法和数字锁相环方法和装置，以提供开关元件（3,6）的门控模式 公共电力通模块电力电子组件（100,200）。

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。

公开(公告)号：US07408755B1

公开(公告)日：2008-08-05

申请号：US11761884

申请日：2007-06-12

申请人： Yang Ye ,  Qihua Z. Zhao ,  Daming Ma

发明人： Yang Ye ,  Qihua Z. Zhao ,  Daming Ma

IPC分类号： H02H3/08 ,  H02H9/02 ,  H02H9/08

CPC分类号： H02H3/025 ,  H02H3/087 ,  H02H5/044

摘要： The present invention provides a single circuit that may have multiple protection functions for a DC voltage power supply. The present invention may include separate circuit modules that are employed individually, or in various combinations. These separate circuit modules include: a temperature and input voltage variation compensated current limit circuit; an inrush and transient current limit combined with an overload and short circuit protection circuit; and a self adaptive short circuit turn-off timing circuit.

摘要翻译： 本发明提供一种单电路，其可以具有用于直流电压电源的多个保护功能。 本发明可以包括单独使用或以各种组合使用的单独的电路模块。 这些分离的电路模块包括：温度和输入电压变化补偿限流电路; 浪涌和瞬态电流限制结合过载和短路保护电路; 以及自适应短路断开定时电路。

公开(公告)号：US07116067B2

公开(公告)日：2006-10-03

申请号：US10979348

申请日：2004-11-02

申请人： Jack Daming Ma ,  George You Zhou ,  Zheng Wang

发明人： Jack Daming Ma ,  George You Zhou ,  Zheng Wang

IPC分类号： H02P3/18 ,  H02P1/00

CPC分类号： H02P6/24 ,  H02P6/08 ,  H02P23/0004 ,  H02P29/025

摘要： A method of controlling a power converter (20) of a motor drive system (10)controls the power converter (20) during a first operating mode by applying a current control scheme, which sets power converter commands to control torque current flowing from the power converter (20) to the motor (30) to achieve desired motor speed; and initiates a second operating mode when power supply to the power converter (20) is interrupted. The second operating mode includes controlling negative torque current between the power converter (20) and the motor (30) so that mechanical energy from the motor (30) charges an element (58) on a power supply side of the power converter (20). The first operating mode is resumed when the input power recovers. Torque current between the power converter (20) and the motor (30) is also controlled to limit a maximum transient DC bus voltage.