METHOD OF CHARGING AND DISCHARGING OF SUPERCAPACITORS WITHOUT THE USE OF CONVERTERS OR CHARGERS
    3.
    发明申请
    METHOD OF CHARGING AND DISCHARGING OF SUPERCAPACITORS WITHOUT THE USE OF CONVERTERS OR CHARGERS 失效
    没有使用转换器或充电器的超级电容器的充电和放电方法

    公开(公告)号:US20090091302A1

    公开(公告)日:2009-04-09

    申请号:US11867253

    申请日:2007-10-04

    IPC分类号: H02J7/00

    摘要: An electrical power system may be provided with temporary power from a bank of supercapacitors connected to a bus of the power system. The supercapacitors may be charged from an output from a primary power source of the system during start-up of the power source. Output voltage of the primary power source may progressively increase and capacitor charging may occur at this progressively increasing voltage. Dedicated current-limiting devices are not required during charging. When temporary power is required the supercapacitors may be discharged sequentially in a series combination so that a high internal voltage of each capacitor is maintained and so that virtually all of the stored energy of the capacitor may be discharged to the bus at a usable voltage.

    摘要翻译: 电力系统可以从连接到电力系统的总线的超级电容器组提供临时电力。 在电源启动期间,超级电容器可以从系统的主电源的输出充电。 主电源的输出电压可能逐渐增加,并且在该逐渐增加的电压下可能发生电容器充电。 充电时不需要专用的限流装置。 当需要临时电力时,超级电容器可以以串联组合顺序放电,使得保持每个电容器的高内部电压,并且几乎所有的电容器的所存储的能量可以以可用的电压被放电到总线。

    Ground fault detection in an ungrounded electrical system
    4.
    发明授权
    Ground fault detection in an ungrounded electrical system 失效
    未接地电气系统中的接地故障检测

    公开(公告)号:US07986500B2

    公开(公告)日:2011-07-26

    申请号:US12104273

    申请日:2008-04-16

    IPC分类号: H02H3/00 H02H9/08

    CPC分类号: H02H9/08 G01R31/025

    摘要: An ungrounded electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault.

    摘要翻译: 未接地的配电系统可能会遇到单线对地故障。 这样的错误可能不会扰乱系统的运行,但是如果未经校正,其存在可能会导致其他问题的风险。 当怀疑线对地故障时,可以启动用于逐渐接地未接地系统的系统。 由于通过连续较低的阻抗进行接地,故障电流可能增加,并且可以更容易地实现线对地故障的严重性的检测,从而有助于故障的定位。

    Ground fault detection and localization in an ungrounded or floating DC electrical system
    6.
    发明授权
    Ground fault detection and localization in an ungrounded or floating DC electrical system 失效
    接地故障检测和定位在不接地或浮动的直流电气系统中

    公开(公告)号:US07969696B2

    公开(公告)日:2011-06-28

    申请号:US12104298

    申请日:2008-04-16

    IPC分类号: H02H3/16 H02H9/08

    CPC分类号: H02H9/08 G01R31/025

    摘要: An ungrounded or floating DC electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected based on the voltage difference measured to a common chassis point. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault. Localization may be achieved through an analysis of direction of capacitive currents in isolatable zones of the system.

    摘要翻译: 未接地或浮动的直流配电系统可能会遇到单线对地故障。 这样的错误可能不会扰乱系统的运行,但是如果未经校正,其存在可能会导致其他问题的风险。 当基于测量到公共底盘点的电压差,怀疑线对地故障时,可以启动用于逐渐接地未接地系统的系统。 由于通过连续较低的阻抗进行接地,故障电流可能增加,并且可以更容易地实现线对地故障的严重性的检测,从而有助于故障的定位。 可以通过分析系统可隔离区域中的电容电流方向来实现本地化。

    GROUND FAULT DETECTION AND LOCALIZATION IN AN UNGROUNDED OR FLOATING DC ELECTRICAL SYSTEM
    7.
    发明申请
    GROUND FAULT DETECTION AND LOCALIZATION IN AN UNGROUNDED OR FLOATING DC ELECTRICAL SYSTEM 失效
    地面故障检测和本地化在一个没有或垂直的直流电力系统

    公开(公告)号:US20090147415A1

    公开(公告)日:2009-06-11

    申请号:US12104298

    申请日:2008-04-16

    IPC分类号: H02H9/08 G01R31/14

    CPC分类号: H02H9/08 G01R31/025

    摘要: An ungrounded or floating DC electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected based on the voltage difference measured to a common chassis point. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault. Localization may be achieved through an analysis of direction of capacitive currents in isolatable zones of the system.

    摘要翻译: 未接地或浮动的直流配电系统可能会遇到单线对地故障。 这样的错误可能不会扰乱系统的运行,但是如果未经校正,其存在可能会导致其他问题的风险。 当基于测量到公共底盘点的电压差,怀疑线对地故障时,可以启动用于逐渐接地未接地系统的系统。 由于通过连续较低的阻抗进行接地,故障电流可能增加,并且可以更容易地实现线对地故障的严重性的检测,从而有助于故障的定位。 可以通过分析系统可隔离区域中的电容电流方向来实现本地化。

    GROUND FAULT DETECTION IN AN UNGROUNDED ELECTRICAL SYSTEM
    9.
    发明申请
    GROUND FAULT DETECTION IN AN UNGROUNDED ELECTRICAL SYSTEM 失效
    地下电气系统中的地面故障检测

    公开(公告)号:US20090147414A1

    公开(公告)日:2009-06-11

    申请号:US12104273

    申请日:2008-04-16

    IPC分类号: H02H9/08 G01R31/14

    CPC分类号: H02H9/08 G01R31/025

    摘要: An ungrounded electrical power distribution system may experience a single line to ground fault. Such a fault may not disrupt operation of the system, but its presence may raise a risk of additional problems if left uncorrected. A system for progressively grounding the ungrounded system may be initiated when a line to ground fault is suspected. As grounding through successively lower impedance proceeds, fault current may increase and detection of severity of the line to ground fault may be more readily achieved, thus facilitating localization of the fault.

    摘要翻译: 未接地的配电系统可能会遇到单线对地故障。 这样的错误可能不会扰乱系统的运行,但是如果未经校正,其存在可能会导致其他问题的风险。 当怀疑线对地故障时,可以启动用于逐渐接地未接地系统的系统。 由于通过连续较低的阻抗进行接地,故障电流可能增加,并且可以更容易地实现线对地故障的严重性的检测,从而有助于故障的定位。