Method and apparatus for detecting a short circuit in a DC link
    2.
    发明申请
    Method and apparatus for detecting a short circuit in a DC link 有权
    用于检测DC链路中的短路的方法和装置

    公开(公告)号:US20100066316A1

    公开(公告)日:2010-03-18

    申请号:US12210888

    申请日:2008-09-15

    IPC分类号: H02K11/00

    摘要: A system for detecting a short circuit in a direct current (DC) link (312), wherein the DC link (312) is coupled with a rectifier (206) which includes a set of rectifier diode pairs (310). During operation, a controller (500) receives a set of inputs from a power generator 204, a set of machine parameters, and a set of diagnostic values. Next, the controller (500) determines a set of expected operating values corresponding to the set of diagnostic values. The controller (500) then compares diagnostic values to corresponding expected operating values. If the difference between the diagnostic values and the expected operating values exceeds a threshold, the controller (500) provides a flag to indicate that a short circuit condition exists.

    摘要翻译: 一种用于检测直流(DC)链路(312)中的短路的系统,其中所述DC链路(312)与包括一组整流二极管对(310)的整流器(206)耦合。 在操作期间,控制器(500)从功率发生器204接收一组输入,一组机器参数和一组诊断值。 接下来,控制器(500)确定与该组诊断值对应的一组预期操作值。 然后,控制器(500)将诊断值与相应的预期操作值进行比较。 如果诊断值与预期操作值之间的差值超过阈值,则控制器(500)提供一个标志以指示存在短路状况。

    METHOD FOR REGULATING TEMPERATURE OF TRANSISTOR-BASED COMPONENT
    3.
    发明申请
    METHOD FOR REGULATING TEMPERATURE OF TRANSISTOR-BASED COMPONENT 有权
    用于调节基于晶体管的元件温度的方法

    公开(公告)号:US20120163055A1

    公开(公告)日:2012-06-28

    申请号:US12977877

    申请日:2010-12-23

    IPC分类号: H02M7/757

    摘要: A method of regulating temperature of a transistor-based component of a power system is disclosed. The method may include operating the power system to supply electric power to the transistor-based component and converting the electric power from direct current to alternating current, or alternating current to direct current, using the transistor-based component, thereby creating heat in the transistor-based component. The method may include outputting the electric power from the transistor-based component and supplying the electric power to an electrically-powered component to perform an output operation. The method may include controlling, during a predetermined system operating condition, one or more operations of a component associated with the power system to actively generate heat to thereby maintain the temperature of the transistor-based component higher than from the conversion of electric power that is performed to produce the electric power used to perform the output operation during the predetermined system operating condition.

    摘要翻译: 公开了一种调节电力系统的基于晶体管的组件的温度的方法。 该方法可以包括操作电力系统以向基于晶体管的组件提供电力并且使用基于晶体管的组件将电力从直流电转换成交流电,或将交流电转换成直流电,由此在晶体管中产生热量 的组件。 该方法可以包括从基于晶体管的部件输出电力并将电力提供给电动部件以执行输出操作。 该方法可以包括在预定的系统操作条件期间控制与电力系统相关联的部件的一个或多个操作以主动产生热量,从而保持基于晶体管的部件的温度高于电力转换 执行以产生在预定系统操作条件期间执行输出操作的电力。

    ELECTRIC DRIVE POWER RESPONSE MANAGEMENT SYSTEM AND METHOD
    5.
    发明申请
    ELECTRIC DRIVE POWER RESPONSE MANAGEMENT SYSTEM AND METHOD 有权
    电力驱动力响应管理系统与方法

    公开(公告)号:US20120059537A1

    公开(公告)日:2012-03-08

    申请号:US12876358

    申请日:2010-09-07

    IPC分类号: B60W10/08 B60W20/00

    摘要: An electric drive system includes a fuel-driven prime mover for driving an electrical power alternator controlled at least in part by an excitation voltage is disclosed. The electrical power alternator makes electrical power available on a DC link having a voltage characteristic and a current characteristic. A method for managing the response of the alternator includes determining a voltage of the DC link and a torque command by an operator. The torque command is used to derive a mechanical power that is being commanded. A desired voltage of the DC link is determined based on the derived mechanical power, and an excitation voltage command signal is provided based on the desired voltage of the DC link by use of a closed loop controller. An actual excitation voltage is applied to the electrical power alternator based on the excitation voltage command signal.

    摘要翻译: 公开了一种电驱动系统,其包括用于驱动至少部分由激励电压控制的电力交流发电机的燃料驱动的原动机。 电力交流发电机使得具有电压特性和电流特性的直流链路上的电力可用。 用于管理交流发电机的响应的方法包括确定DC链路的电压和操作者的转矩指令。 扭矩指令用于导出正在命令的机械功率。 基于导出的机械功率来确定DC链路的期望电压,并且通过使用闭环控制器,基于DC链路的期望电压来提供激励电压命令信号。 实际的励磁电压根据励磁电压指令信号施加到电力交流发电机。

    Method and apparatus for power generation failure diagnostics
    6.
    发明授权
    Method and apparatus for power generation failure diagnostics 有权
    用于发电故障诊断的方法和装置

    公开(公告)号:US07956762B2

    公开(公告)日:2011-06-07

    申请号:US12210898

    申请日:2008-09-15

    IPC分类号: G08B21/00

    CPC分类号: G01R31/343

    摘要: A controller (500) in an electric drive system is used to develop power generation failure diagnostics. During operation, the controller (500) receives a set of generator inputs, a set of machine parameters, and a set of diagnostic values. Next, the controller (500) determines a set of expected operating values corresponding to the set of diagnostic values. The controller (500) then compares the obtained diagnostic values to one or more corresponding expected operating values. If the difference is greater than a threshold, the controller (500) provides an appropriate fault indication.

    摘要翻译: 电驱动系统中的控制器(500)用于开发发电故障诊断。 在操作期间,控制器(500)接收一组发生器输入,一组机器参数和一组诊断值。 接下来,控制器(500)确定与该组诊断值对应的一组预期操作值。 然后,控制器(500)将获得的诊断值与一个或多个相应的预期操作值进行比较。 如果差值大于阈值,则控制器(500)提供适当的故障指示。

    Method and apparatus for detecting phase current imbalance in a power generator
    7.
    发明申请
    Method and apparatus for detecting phase current imbalance in a power generator 有权
    用于检测发电机相电流不平衡的方法和装置

    公开(公告)号:US20100066294A1

    公开(公告)日:2010-03-18

    申请号:US12210853

    申请日:2008-09-15

    IPC分类号: G01R31/02

    摘要: A controller (500) in an electric drive system is used to determine whether a phase current imbalance in the output winding of a power generator (204) exists. During operation, the controller (500) receives a set of power generator diagnostic values corresponding to the phase currents output by the power generator (204). Next, the controller (500) determines a set of expected operating phase current values. The controller (500) then compares the obtained diagnostic values to one or more corresponding expected operating values. If the difference is greater than a threshold, the controller (500) provides an appropriate fault indication indicative of a phase current imbalance.

    摘要翻译: 使用电驱动系统中的控制器(500)来确定是否存在发电机(204)的输出绕组中的相电流不平衡。 在操作期间,控制器(500)接收与发电机(204)输出的相电流对应的一组发电机诊断值。 接下来,控制器(500)确定一组预期的工作相电流值。 然后,控制器(500)将获得的诊断值与一个或多个相应的预期操作值进行比较。 如果差值大于阈值,则控制器(500)提供指示相电流不平衡的适当故障指示。

    Method and apparatus to eliminate fuel use for electric drive machines during trolley operation
    10.
    发明授权
    Method and apparatus to eliminate fuel use for electric drive machines during trolley operation 有权
    在推车操作期间消除电动驱动机器的燃料使用的方法和装置

    公开(公告)号:US08857542B2

    公开(公告)日:2014-10-14

    申请号:US13314650

    申请日:2011-12-08

    IPC分类号: B60L9/00 B60L11/02 B60L11/14

    摘要: A drive system for a machine having an engine, a generator, a trolley drive arrangement, a motor, wheels and auxiliary devices is provided. The drive system includes an inverter circuit and an auxiliary driver both being operatively connected to the trolley drive arrangement. The inverter circuit may be coupled to each of the generator and the motor. The auxiliary driver may be coupled to each of the generator and the auxiliary devices. The inverter circuit and the auxiliary driver may be configured to automatically communicate power from the trolley drive arrangement and any power from the auxiliary devices to the motor in a trolley propel mode, and automatically communicate power from the motor to the engine, the trolley drive arrangement, and optionally to a hybrid system if applicable, in a dynamic braking mode, while attached to trolley lines so as to eliminate fuel consumption while attached to the trolley lines.

    摘要翻译: 提供了一种具有发动机,发电机,手推车驱动装置,电动机,轮子和辅助装置的机器的驱动系统。 驱动系统包括可操作地连接到手推车驱动装置的逆变器电路和辅助驱动器。 逆变器电路可以耦合到发电机和电动机中的每一个。 辅助驱动器可以耦合到发电机和辅助装置中的每一个。 逆变器电路和辅助驱动器可以被配置为在电车推进模式中自动地将来自手推车驱动装置的电力和来自辅助装置的电力传递到电动机,并且自动地将电力从电动机传递到发动机,小车驱动装置 ,并且可选地到混合动力系统(如果适用的话)以动态制动模式,同时连接到电车线,以便在附接到电车线时消除燃料消耗。