METHOD AND DEVICE FOR MONITORING THE INSULATION RESISTANCE IN AN UNGROUNDED ELECTRICAL NETWORK
    1.
    发明申请
    METHOD AND DEVICE FOR MONITORING THE INSULATION RESISTANCE IN AN UNGROUNDED ELECTRICAL NETWORK 审中-公开
    用于监测地下电气网络中的绝缘电阻的方法和装置

    公开(公告)号:US20130221997A1

    公开(公告)日:2013-08-29

    申请号:US13704906

    申请日:2011-04-27

    IPC分类号: G01R27/14

    摘要: A method and a device for monitoring the insulation resistance in an ungrounded electrical network having a constant-voltage d.c. link and at least one inverter, connected to it, for controlling an n-phase electrical consumer in an n-phase network. A voltage to be monitored, is determined during operation of the consumer, which represents a voltage fluctuation of supply voltage potentials of the constant-voltage d.c. link with respect to a reference potential. In addition, a variable characterizing an electrical frequency of the electrical consumer is determined, particularly an electrical angular speed of the electrical consumer. A first spectral amplitude of the voltage to be monitored at the n-fold electrical frequency of the electrical consumer, is compared to a first reference value, and detects a symmetrical insulation error in the constant-voltage d.c. link or the n-phased network, if the comparison yields a deviation of the first spectral amplitude from the first reference value.

    摘要翻译: 一种在具有恒定电压直流电的未接地电网中监测绝缘电阻的方法和装置。 连接至少一个连接到其上的逆变器,用于控制n相网络中的n相电气消耗器。 要监测的电压是在消费者的操作期间确定的,其表示恒定电压d.c.的电源电压的电压波动。 链接参考潜力。 此外,确定了表征电用户的电频率的变量,特别是电消费者的电角速度。 将要在电力消费者的n倍电频率处监视的电压的第一频谱幅度与第一参考值进行比较,并且检测恒定电压直流中的对称绝缘误差。 链路或n相网络,如果比较产生第一频谱幅度与第一参考值的偏差。

    Method and Device for Limiting the Starting Current and for Discharging the DC Voltage Intermediate Circuit
    4.
    发明申请
    Method and Device for Limiting the Starting Current and for Discharging the DC Voltage Intermediate Circuit 有权
    限制起动电流和放电直流电压中间电路的方法和装置

    公开(公告)号:US20110006726A1

    公开(公告)日:2011-01-13

    申请号:US12681328

    申请日:2008-09-26

    IPC分类号: H01M10/46 H02J7/00

    摘要: Methods and associated devices are described for discharging the high-voltage network, particularly a DC voltage intermediate circuit, in which for discharging the capacitors of the high-voltage network, switching devices are used that lie between the capacitors and at least one precharging resistor and a high-voltage battery, and the switching devices are switches having a specifiable positioning of the switching contacts or switching units or relays or contactors, which are switchable with the aid of a control device. The operation of the switching units takes place in such a way that the at least one precharging resistor is used simultaneously for charging and discharging the DC voltage intermediate circuit.

    摘要翻译: 描述了用于放电高压网络,特别是直流电压中间电路的方法和相关装置,其中为了放电高压网络的电容器,使用位于电容器和至少一个预充电电阻器之间的开关装置,以及 高压电池,并且开关装置是开关触点或开关单元或继电器或接触器的可指定定位的开关,其可以借助于控制装置切换。 开关单元的工作方式是使得至少一个预充电电阻同时用于对直流电压中间电路进行充电和放电。

    Method and device for limiting the starting current and for discharging the DC voltage intermediate circuit
    6.
    发明授权
    Method and device for limiting the starting current and for discharging the DC voltage intermediate circuit 有权
    限制起动电流和直流电压中间电路放电的方法和装置

    公开(公告)号:US08729864B2

    公开(公告)日:2014-05-20

    申请号:US12681328

    申请日:2008-09-26

    IPC分类号: H02J7/00

    摘要: Methods and associated devices are described for discharging the high-voltage network, particularly a DC voltage intermediate circuit, in which for discharging the capacitors of the high-voltage network, switching devices are used that lie between the capacitors and at least one precharging resistor and a high-voltage battery, and the switching devices are switches having a specifiable positioning of the switching contacts or switching units or relays or contactors, which are switchable with the aid of a control device. The operation of the switching units takes place in such a way that the at least one precharging resistor is used simultaneously for charging and discharging the DC voltage intermediate circuit.

    摘要翻译: 描述了用于放电高压网络,特别是直流电压中间电路的方法和相关装置,其中为了放电高压网络的电容器,使用位于电容器和至少一个预充电电阻器之间的开关装置,以及 高压电池,并且开关装置是开关触点或开关单元或继电器或接触器的可指定定位的开关,其可以借助于控制装置切换。 开关单元的工作方式是使得至少一个预充电电阻同时用于对直流电压中间电路进行充电和放电。

    Monitoring the temperature change in the charging cable
    7.
    发明申请
    Monitoring the temperature change in the charging cable 审中-公开
    监控充电电缆的温度变化

    公开(公告)号:US20130100982A1

    公开(公告)日:2013-04-25

    申请号:US13636414

    申请日:2011-03-15

    IPC分类号: G01N25/00

    摘要: A method for determining the temperature change of a feeder cable of a charging device in that, in a first task, the electromagnetic input pulse is coupled into the feeder cable, the electromagnetic input pulse being able to be reflected in the feeder cable and the reflected portion returning to the charging device as reflected electromagnetic output pulse; in a second task, the pulse shape of the reflected electromagnetic output pulse is determined; in a third task, the pulse shape of the reflected electromagnetic output pulse is compared to a reference pulse shape of the reflected reference pulse; in a fourth task, the temperature change is determined by comparing the two pulse shapes.

    摘要翻译: 一种用于确定充电装置的馈电电缆的温度变化的方法,因为在第一任务中,电磁输入脉冲被耦合到馈电电缆中,电磁输入脉冲能够被反射在馈电电缆中并被反射 部分作为反射电磁输出脉冲返回到充电装置; 在第二任务中,确定反射的电磁输出脉冲的脉冲形状; 在第三任务中,将反射的电磁输出脉冲的脉冲形状与反射的参考脉冲的参考脉冲形状进行比较; 在第四个任务中,通过比较两个脉冲形状来确定温度变化。

    METHOD FOR CHECKING THE PLAUSIBILITY OF THE TORQUE OF AN ELECTRIC MACHINE AND MACHINE CONTROLLER FOR CONTROLLING AN ELECTRIC MACHINE AND FOR CARRYING OUT THE METHOD
    8.
    发明申请

    公开(公告)号:US20120278007A1

    公开(公告)日:2012-11-01

    申请号:US13505591

    申请日:2010-09-16

    IPC分类号: G01L3/10

    摘要: A method for checking the plausibility of a torque of an electric machine, calculated on the basis of a machine model, in which a first value of an electromagnetic power of the electric machine is determined from the calculated torque and a rotational speed of the electric machine. Stator current components and stator phase voltage components are calculated from the stator currents and the stator phase voltages with respect to a reference system, which is fixed in relation to the stator. A second value of the electromagnetic power of the electric machine is determined from the stator current components and the stator phase voltage components. If a deviation of the first value of the electromagnetic power of the electric machine from the second value exceeds a predefined power threshold value, the torque of the electric machine, calculated on the basis of the machine model, is classified as implausible.

    摘要翻译: 一种用于检查基于机器模型计算的电机扭矩的合理性的方法,其中根据计算的扭矩和电机的转速来确定电机的电磁功率的第一值 。 定子电流分量和定子相电压分量由相对于定子固定的参考系统的定子电流和定子相电压计算。 根据定子电流分量和定子相电压分量确定电机的电磁功率的第二值。 如果电机的电磁功率的第一值与第二值的偏差超过预定义的功率阈值,则基于机器型号计算的电机的转矩被分类为不可信。