利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

67 条记录 (耗时 0.024 秒)

    PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS
    21.
    发明申请
    PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS 有权
    永磁电机控制电路的保护

    公开(公告)号：US20080304189A1

    公开(公告)日：2008-12-11

    申请号：US11758974

    申请日：2007-06-06

    申请人： David Tang ,  Brian A. Welchko ,  Silva Hiti ,  Mark L. Selogie

    发明人： David Tang ,  Brian A. Welchko ,  Silva Hiti ,  Mark L. Selogie

    IPC分类号： H02H7/09

    CPC分类号： H02H7/0838

    摘要： Methods and apparatus are provided for protecting a motor control circuit in a permanent magnet electric motor system. The permanent magnet electric motor system includes a permanent magnet electric motor having a predetermined number of windings corresponding to the phases of the permanent magnet electric motor and a direct current (DC) bus coupled to a power source for providing operational power for the electric motor system. A motor control circuit is connected to the DC bus for receiving the operational power therefrom and is connected to the windings of the permanent magnet electric motor for controlling the permanent magnet electric motor. A protection circuit is connected to the DC bus for receiving the voltage therefrom for operation of the protection circuit and for detecting predetermined motor control circuit fault conditions from voltage sensed on the DC bus and in response thereto providing protection for the motor control circuit.

    摘要翻译： 提供了用于保护永磁电动机系统中的电动机控制电路的方法和装置。 永磁电动机系统包括具有对应于永磁电动机的相位的预定数量的绕组的永磁电动机和耦合到用于为电动机系统提供动力的电源的直流（DC）母线 。 电动机控制电路连接到DC总线，用于从其接收操作电力，并连接到用于控制永磁电动机的永磁电动机的绕组。 保护电路连接到DC总线，用于从其接收电压用于保护电路的操作，并且用于从DC总线上感测到的电压检测预定的电机控制电路故障状况，并响应于此为电机控制电路提供保护。

    Systems and methods for monitoring current in an electric motor
    22.
    发明授权
    Systems and methods for monitoring current in an electric motor 有权
    用于监测电动机电流的系统和方法

    公开(公告)号：US08558496B2

    公开(公告)日：2013-10-15

    申请号：US13049653

    申请日：2011-03-16

    申请人： Brian A. Welchko ,  Silva Hiti ,  Ronald W. Young ,  David Tang ,  Gregory S. Smith

    发明人： Brian A. Welchko ,  Silva Hiti ,  Ronald W. Young ,  David Tang ,  Gregory S. Smith

    IPC分类号： G05B5/00

    CPC分类号： B60L3/0038 ,  B60L2240/429 ,  B60L2240/529 ,  H02P29/027 ,  H02P29/032 ,  Y02T10/642

    摘要： Systems and methods are provided for monitoring current in an electric motor. An electrical system includes a (DC) interface, an electric motor, an inverter module coupled between the DC interface and the electric motor, a first current sensor between a first phase leg of the inverter module and a first phase of the electric motor to measure a first current flowing through the first phase of the electric motor, a second current sensor between the first phase leg and the DC interface to measure a second current flowing through the first phase leg, and a control module coupled to the first current sensor and the second current sensor. The control module is configured to initiate remedial action based at least in part on a difference between the first current measured by the first current sensor and the second current measured by the second current sensor.

    摘要翻译： 提供了用于监视电动机中的电流的系统和方法。 电气系统包括（DC）接口，电动机，耦合在DC接口和电动机之间的逆变器模块，在逆变器模块的第一相支路和电动机的第一相之间的第一电流传感器，以测量 流过电动机的第一相的第一电流，在第一相支路和DC接口之间的第二电流传感器，以测量流过第一相支线的第二电流;以及控制模块，耦合到第一电流传感器和 第二电流传感器。 控制模块被配置为至少部分地基于由第一电流传感器测量的第一电流与由第二电流传感器测量的第二电流之间的差异来启动补救动作。

    Redundant DC bus discharge for an electric motor system
    23.
    发明授权
    Redundant DC bus discharge for an electric motor system 有权
    用于电动机系统的冗余直流母线放电

    公开(公告)号：US07944160B2

    公开(公告)日：2011-05-17

    申请号：US12047120

    申请日：2008-03-12

    申请人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    发明人： Silva Hiti ,  David Tang ,  Brian A. Welchko ,  Milun Perisic ,  Constantin C. Stancu

    IPC分类号： H02P21/00

    CPC分类号： H02P21/0003 ,  H02M2001/322

    摘要： Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.

    摘要翻译： 提供了用于对在电动机系统中的电动机控制电路供电的直流（DC）总线的放电的方法和装置。 该方法包括以下步骤：响应于检测到预定的放电信号，产生包括用于从DC总线通过无源负载消耗能量的相电流的操作控制信号，其中被动负载包括电动机的电动机绕组 的电机系统。 该方法还包括向电动机控制电路提供操作控制信号以通过电动机控制电路和电动机的电动机绕组排放DC总线的步骤。

    Method and system for operating an electric motor coupled to multiple power supplies
    24.
    发明授权
    Method and system for operating an electric motor coupled to multiple power supplies 有权
    用于操作耦合到多个电源的电动马达的方法和系统

    公开(公告)号：US07800331B2

    公开(公告)日：2010-09-21

    申请号：US11945368

    申请日：2007-11-27

    申请人： Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Silva Hiti

    发明人： Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Silva Hiti

    IPC分类号： H02P1/00

    CPC分类号： H02P27/08 ,  H02P2209/03 ,  Y02T10/7258

    摘要： Methods and systems are provided for operating an electric motor having at least one winding coupled to first and second power supplies. A torque command for the electric motor is received. A present power reserve for the first and second power supplies is determined based at least in part on the torque command. An operating voltage for the second power supply is determined based on the present power reserve. The operating voltage for the second power supply is applied to the at least one winding. The application of the operating voltage allowing the present power reserve to flow between the first and second power supplies and the motor.

    摘要翻译： 提供了用于操作具有耦合到第一和第二电源的至少一个绕组的电动机的方法和系统。 接收到电动机的转矩指令。 至少部分地基于转矩指令来确定用于第一和第二电源的当前功率储备。 基于当前动力储备来确定第二电源的工作电压。 第二电源的工作电压被施加到至少一个绕组。 施加允许当前功率储备在第一和第二电源和电动机之间流动的工作电压。

    Method and system for controlling a power inverter in electric drives
    29.
    发明授权
    Method and system for controlling a power inverter in electric drives 有权
    用于控制电力变频器中的电力变换器的方法和系统

    公开(公告)号：US07888905B2

    公开(公告)日：2011-02-15

    申请号：US12013093

    申请日：2008-01-11

    申请人： Brian A. Welchko ,  Steven E. Schultz ,  Silva Hiti

    发明人： Brian A. Welchko ,  Steven E. Schultz ,  Silva Hiti

    IPC分类号： H02P27/04

    CPC分类号： H02M7/53875 ,  H02M2007/53876

    摘要： Methods and systems for controlling a power inverter in an electric drive system of an automobile are provided. A signal controlling the power inverter is modified utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value. The signal is modified utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.

    摘要翻译： 提供了一种用于控制汽车电驱动系统中的电力逆变器的方法和系统。 如果信号的调制指数小于第一调制指数值，则利用第一电​​压失真补偿方法来修改控制功率逆变器的信号。 如果调制指数至少等于第一调制指数值，则利用第二电压失真补偿方法修改信号。