METHOD AND DEVICE FOR MONITORING THE INSULATION RESISTANCE IN AN UNGROUNDED ELECTRICAL NETWORK
    3.
    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 DISCHARGING A HIGH-VOLTAGE SYSTEM
    9.
    发明申请
    METHOD AND DEVICE FOR DISCHARGING A HIGH-VOLTAGE SYSTEM 有权
    用于放电高压系统的方法和装置

    公开(公告)号:US20110093148A1

    公开(公告)日:2011-04-21

    申请号:US12866517

    申请日:2008-12-30

    IPC分类号: B60L15/20 B60L1/00 H02J7/00

    摘要: The invention relates to a method for discharging a high voltage network (2) in a vehicle, the high voltage network (2) comprising at least one energy store (1) and a plurality of high voltage consumers (3). For discharging the high voltage network (2), the electrical energy store (1) is first separated from the remaining on-board power supply system (2) and at least one of the high voltage consumers (3) is switched on so that the charge stored in the network is discharged via the consumers (3).

    摘要翻译: 本发明涉及一种用于排放车辆中的高压网络(2)的方法,所述高压网络(2)包括至少一个能量存储器(1)和多个高电压消耗器(3)。 为了放电高压网络(2),首先将电能存储器(1)与剩余的车载电源系统(2)分开,并且高电压消耗器(3)中的至少一个被接通,使得 存储在网络中的电费通过消费者(3)放电。