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19 条记录 (耗时 0.017 秒)

    Programmable current initilization for resonant DC link converter
    1.
    发明授权
    Programmable current initilization for resonant DC link converter 失效
    谐振直流链路转换器的可编程电流启动

    公开(公告)号：US4998054A

    公开(公告)日：1991-03-05

    申请号：US411860

    申请日：1989-09-26

    申请人： Bimal K. Bose ,  Jih-Sheng Lai

    发明人： Bimal K. Bose ,  Jih-Sheng Lai

    IPC分类号： H02M7/48

    CPC分类号： H02M7/4826 ,  Y02P80/112

    摘要： The invention comprises a DC link resonant converter for controlling the speed of AC machines. Switch and power supply means is provided to establish a bi-directional initial current in the resonant circuit. By selecting the plurality and magnitude of the initial current, the peak voltage of the resonant link is controlled, and reliable zero crossing of the resonant voltage is assured. Current technology permits resonant frequencies in the range of 50-100 kilohertz to be utilized.

    摘要翻译： 本发明包括用于控制交流电机速度的直流链路谐振变换器。 提供开关和电源装置以在谐振电路中建立双向初始电流。 通过选择初始电流的多个和大小，谐振链路的峰值电压被控制，并且确保谐振电压的可靠的零交叉。 目前的技术允许使用50-100千赫兹范围内的谐振频率。

    High frequency quasi-resonant DC voltage notching scheme of a PWM voltage fed inverter for AC motor drives
    2.
    发明授权
    High frequency quasi-resonant DC voltage notching scheme of a PWM voltage fed inverter for AC motor drives 失效
    用于交流电机驱动的PWM电压逆变器的高频准谐振直流电压陷波方案

    公开(公告)号：US5111374A

    公开(公告)日：1992-05-05

    申请号：US542903

    申请日：1990-06-22

    申请人： Jih-Sheng Lai ,  Bimal K. Bose

    发明人： Jih-Sheng Lai ,  Bimal K. Bose

    CPC分类号： H02M7/4826

    摘要： A circuit for converting a DC voltage to a pulsating DC voltage useful as a power source for operating an AC machine. The circuit includes means for controlling the amplitude of the pulsating DC voltage as the load changes and means for controlling the duration of the pulses comprising the pulsating DC voltage.

    摘要翻译： 用于将DC电压转换为用作用于操作AC电机的电源的脉动DC电压的电路。 电路包括用于在负载变化时控制脉动直流电压的幅度的装置，以及用于控制包括脉动直流电压的脉冲持续时间的装置。

    Control system for switched reluctance motor
    4.
    发明授权
    Control system for switched reluctance motor 失效
    开关磁阻电机控制系统

    公开(公告)号：US4707650A

    公开(公告)日：1987-11-17

    申请号：US915288

    申请日：1986-10-03

    申请人： Bimal K. Bose

    发明人： Bimal K. Bose

    IPC分类号： H02P3/06 ,  H02P25/08 ,  G05B19/40

    CPC分类号： H02P3/065 ,  H02P25/092 ,  H02P25/0925

    摘要： A programmable, closed-loop four quadrant control system for a switched reluctance motor employs feedback control, angle control and current control. The feedback control can be implemented with a speed feedback loop and/or a torque feedback loop. The angle control digitally synchronizes stator phase current pulses with rotor position, and the current control acts as a chopping or bang-bang controller to limit magnitude of the stator phase current pulses.

    摘要翻译： 用于开关磁阻电机的可编程闭环四象限控制系统采用反馈控制，角度控制和电流控制。 反馈控制可以用速度反馈回路和/或扭矩反馈回路实现。 角度控制将定子相电流脉冲与转子位置数字同步，电流控制作为斩波或轰击控制器来限制定子相电流脉冲的幅度。

    Microcomputer-based pulse width modulated inverter fed machine drive system
    5.
    发明授权
    Microcomputer-based pulse width modulated inverter fed machine drive system 失效
    基于微机的脉宽调制逆变器馈电机驱动系统

    公开(公告)号：US4409534A

    公开(公告)日：1983-10-11

    申请号：US328164

    申请日：1981-12-07

    申请人： Bimal K. Bose

    发明人： Bimal K. Bose

    IPC分类号： H02M7/5387 ,  H02P23/00 ,  H02P27/08 ,  H02P5/40 ,  H02P7/44 ,  H02P7/58

    CPC分类号： H02P27/08 ,  H02M7/53873 ,  H02P23/0077 ,  H02P27/047

    摘要： Regulation of inverter-machine drive system torque and frequency in accordance with operator commands is achieved by the use of an improved, microcomputer-based, control apparatus. At machine frequencies less than a preselected machine frequency, inverter pulse width modulation signal pulses and half cycle polarity signal pulses are supplied by the control apparatus to the inverter to regulate the duration and conduction sequence, respectively, of inverter switching devices in accordance with pulse width modulation signal data computed by equilateral triangulation and stored half cycle polarity signal data. At frequencies above the preselected machine frequency, when computation of inverter pulse width modulation signal data becomes impractical, inverter pulse width modulation signal pulses are synthesized from stored data. This achieves simplification of control hardware and provides improved machine drive system performance.

    摘要翻译： 通过使用改进的基于微处理器的控制装置来实现根据操作者指令调节变频器驱动系统的转矩和频率。 在小于预选机频率的机器频率下，控制装置向逆变器提供逆变器脉冲宽度调制信号脉冲和半周期极性信号脉冲，以分别根据脉冲宽度来调节逆变器开关装置的持续时间和导通顺序 通过等边三角测量和存储的半周期极性信号数据计算的调制信号数据。 在高于预选机频率的频率下，当逆变器脉宽调制信号数据的计算变得不切实际时，从存储的数据合成反相器脉冲宽度调制信号脉冲。 这实现了控制硬件的简化，并提供了改进的机器驱动系统性能。

    Induction motor drive system
    7.
    发明授权
    Induction motor drive system 失效
    感应电机驱动系统

    公开(公告)号：US4713596A

    公开(公告)日：1987-12-15

    申请号：US753463

    申请日：1985-07-10

    申请人： Bimal K. Bose

    发明人： Bimal K. Bose

    IPC分类号： G05B19/35 ,  H02P21/00 ,  H02P5/34

    CPC分类号： G05B19/353 ,  H02P21/22

    摘要： An induction motor is operated under sliding mode control such that the motor shaft position follows a predetermined trajectory. The motor drive's improved insensitivity to load disturbances makes it particularly well adapted to servo applications such as robot and machine tool applications. A sliding mode controller determines the correct torque command which causes the motor shaft position to follow the desired trajectory.

    摘要翻译： 感应电动机在滑动模式控制下操作，使得电动机轴位置遵循预定的轨迹。 电机驱动器对负载扰动的不敏感性提高使其特别适用于伺服应用，如机器人和机床应用。 滑动模式控制器确定正确的转矩指令，使得电动机轴位置跟随期望的轨迹。

    Start-up control for switched reluctance motor
    8.
    发明授权
    Start-up control for switched reluctance motor 失效
    开关磁阻电机的启动控制

    公开(公告)号：US4713594A

    公开(公告)日：1987-12-15

    申请号：US915291

    申请日：1986-10-03

    申请人： Bimal K. Bose ,  Paul M. Szczesny

    发明人： Bimal K. Bose ,  Paul M. Szczesny

    IPC分类号： H02P1/16 ,  H02P25/08 ,  G05B19/40

    CPC分类号： H02P1/163 ,  H02P25/092 ,  H02P25/0925

    摘要： A start-up control for a switched reluctance motor employs an encloder for generating a rotor position information signal for each stator phase and a start-up signal processor. The processor receives the rotor position information signals and processes them in accordance with a direction command. To initiate forward rotation, the information signals are complemented; to initiate reverse rotation, the information signals for adjacent phases are AND-coupled.

    摘要翻译： 用于开关磁阻电动机的启动控制采用包围器来产生每个定子相位的转子位置信息信号和启动信号处理器。 处理器接收转子位置信息信号并根据方向命令进行处理。 为了启动正向旋转，信息信号被补充; 为了启动反向旋转，相邻相位的信息信号被AND耦合。

    Microcomputer-based control apparatus for a load-commutated inverter synchronous machine drive system
    9.
    发明授权
    Microcomputer-based control apparatus for a load-commutated inverter synchronous machine drive system 失效
    一种用于负载换向逆变器同步电机驱动系统的微机控制装置

    公开(公告)号：US4276505A

    公开(公告)日：1981-06-30

    申请号：US135215

    申请日：1980-03-31

    申请人： Bimal K. Bose

    发明人： Bimal K. Bose

    IPC分类号： H02P29/00 ,  H02P25/02 ,  H02P5/28 ,  H02P5/34 ,  H02P7/36

    CPC分类号： H02P25/024 ,  Y02P80/116

    摘要： A load-commutated inverter synchronous machine drive system control apparatus comprises at least one microcomputer for determining optimum or desired values for inverter turn-off time, inverter link current and machine air gap flux from machine drive system voltage and currents. Inverter frequency is regulated in accordance with the difference in magnitude between optimum and actual inverter turn-off time to minimize the inverter turn-off angle irrespective of machine frequency, thereby reducing synchronous machine reactive power. Inverter link current and synchronous machine field current are regulated responsive to the difference in magnitude between optimum and actual inverter link current and the difference in magnitude between optimum and actual machine air gap flux, respectively, thereby assuring machine operation at maximum efficiency.

    摘要翻译： 负载换向逆变器同步电机驱动系统控制装置包括至少一个微机，用于根据机器驱动系统的电压和电流确定逆变器关断时间，逆变器连接电流和机器气隙磁通的最佳值或期望值。 逆变器频率根据最佳和实际的逆变器关断时间之间的幅度差异进行调节，以最小化变频器的关闭角度，与机器频率无关，从而降低同步机无功功率。 响应于最佳和实际的逆变器链路电流之间的幅度差异以及最佳和实际机器气隙磁通之间的幅度差异，调节变频器链路电流和同步电机励磁电流，从而以最大效率保证机器运行。

    Method of real time operating point identification and pole adjustment for an induction motor drive system
    10.
    发明授权
    Method of real time operating point identification and pole adjustment for an induction motor drive system 失效
    感应电机驱动系统的实时工作点识别和极点调整方法

    公开(公告)号：US4585985A

    公开(公告)日：1986-04-29

    申请号：US639173

    申请日：1984-08-09

    申请人： Bimal K. Bose

    发明人： Bimal K. Bose

    IPC分类号： H02P21/00 ,  H02P5/40

    CPC分类号： H02P21/06

    摘要： A microcomputer based method for adjusting feedback loop gains ensures a fast, predetermined response of an induction motor drive system. A pre-computed look-up table contains gain values to be loaded into feedback regulators, the gain values corresponding to each operating point of the induction motor having the values necessary to keep the poles of the closed loop system substantially constant.

    摘要翻译： 用于调节反馈回路增益的基于微机的方法确保了感应电动机驱动系统的快速预定的响应。 预先计算的查找表包含要加载到反馈调节器中的增益值，对应于感应电动机的每个操作点的增益值具有保持闭环系统的极点基本恒定所必需的值。