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    • 2. 发明授权
    • DC bus discharge in an electric motor system
    • 直流母线放电在电动马达系统中
    • US07944161B2
    • 2011-05-17
    • US12047123
    • 2008-03-12
    • Silva HitiDavid TangBrian A. WelchkoMilun PerisicConstantin C. Stancu
    • Silva HitiDavid TangBrian A. WelchkoMilun PerisicConstantin C. Stancu
    • H02P21/00
    • H02P27/06H02P3/22H02P23/10
    • Methods and apparatus are provided for improved discharge of a DC bus which provides power to an inverter. An electric motor system provided with the improved discharge method for discharge of the DC bus includes an electric motor, the inverter which provides electric control for the permanent magnet electric motor, the direct current (DC) bus which provides power to the inverter, and a processor. The processor generates operational control signals and provides such operational control signals to the inverter. In response to detecting a predetermined discharge signal, the processor generates operational control signals for generating a ripple current in motor windings of the electric motor to dissipate energy from the DC bus through a passive load, the passive load including the motor windings of the electric motor.
    • 提供了用于改进向逆变器提供电力的DC总线的放电的方法和装置。 具有改善的用于排放DC总线的放电方法的电动机系统包括电动机,为永磁电动机提供电力控制的逆变器,向逆变器供电的直流(DC)总线,以及 处理器。 处理器产生操作控制信号,并向变频器提供这种操作控制信号。 响应于检测到预定的放电信号,处理器产生用于在电动机的电动机绕组中产生纹波电流的操作控制信号,以通过无源负载从DC总线耗散能量,包括电动机的电动机绕组的被动负载 。
    • 6. 发明授权
    • Systems and methods for monitoring current in an electric motor
    • 用于监测电动机电流的系统和方法
    • US08558496B2
    • 2013-10-15
    • US13049653
    • 2011-03-16
    • Brian A. WelchkoSilva HitiRonald W. YoungDavid TangGregory S. Smith
    • Brian A. WelchkoSilva HitiRonald W. YoungDavid TangGregory S. Smith
    • G05B5/00
    • B60L3/0038B60L2240/429B60L2240/529H02P29/027H02P29/032Y02T10/642
    • 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.
    • 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。
    • 7. 发明授权
    • Protection for permanent magnet motor control circuits
    • 永磁电机控制电路保护
    • US07652858B2
    • 2010-01-26
    • US11758974
    • 2007-06-06
    • David TangBrian A WelchkoSilva HitiMark L Selogie
    • David TangBrian A WelchkoSilva HitiMark L Selogie
    • H02H7/09
    • H02H7/0838
    • 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.
    • 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。
    • 8. 发明申请
    • PROTECTION FOR PERMANENT MAGNET MOTOR CONTROL CIRCUITS
    • 永磁电机控制电路的保护
    • US20080304189A1
    • 2008-12-11
    • US11758974
    • 2007-06-06
    • David TangBrian A. WelchkoSilva HitiMark L. Selogie
    • David TangBrian A. WelchkoSilva HitiMark L. Selogie
    • H02H7/09
    • H02H7/0838
    • 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.
    • 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。