知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.011 秒)

    METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION
    3.
    发明申请
    METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION 失效
    用于通用交流和直流电弧故障检测和保护的方法和装置

    公开(公告)号：US20110012607A1

    公开(公告)日：2011-01-20

    申请号：US12890861

    申请日：2010-09-27

    申请人： HASSAN ALI KOJORI ,  YANG YE

    发明人： HASSAN ALI KOJORI ,  YANG YE

    IPC分类号： G01R31/08

    CPC分类号： H02H1/0015 ,  H02H3/0935

    摘要： According to the features discussed herein, through a single generalized arc-fault detection algorithm, various types of series and/or parallel arc faults can be detected without any nuisance trip for either AC or DC Electric Power Systems. Running Discrete Fourier Series (RDFS) formulation for nuisance-free operation and cost-effective implementation is developed. Unlike other methods which require numerous source and load-side current and voltage measurements, only source side current is required. An arc detector may include a first detector to monitor variations of a magnitude of a fundamental component of a current, and a second detector to monitor an overload condition based in an i2t calculation. A method may include obtaining a first cycle of a fundamental component of a current, obtaining a second cycle of the fundamental component of the current, and comparing the first cycle of the fundamental component of the current and the second cycle of the fundamental component of the current to determine if a difference of the first cycle and the second cycle is greater than a threshold amount.

    摘要翻译： 根据本文所讨论的特征，通过单一的广义电弧故障检测算法，可以检测各种类型的串联和/或并联电弧故障，而无需任何AC或DC电力系统的扰动跳闸。 开发了运行离散傅立叶级数（RDFS）制定无障碍操作和成本效益实施。 与需要大量源极和负载侧电流和电压测量的其他方法不同，仅需要源极侧电流。 电弧检测器可以包括第一检测器，用于监测电流的基波分量的幅度的变化，以及第二检测器，用于监测基于i2t计算的过载状况。 一种方法可以包括获得电流的基波分量的第一周期，获得电流的基波分量的第二周期，以及比较电流的基波分量的当前和第二周期的基波分量的第一周期 电流以确定第一周期和第二周期的差是否大于阈值量。

    HIGH VOLTAGE ELECTRIC ACCUMULATORS WITH INTERNAL DISTRIBUTED DC-DC CONVERTERS FOR SELF REGULATION AND PROTECTION
    4.
    发明申请
    HIGH VOLTAGE ELECTRIC ACCUMULATORS WITH INTERNAL DISTRIBUTED DC-DC CONVERTERS FOR SELF REGULATION AND PROTECTION 有权
    具有内部分布式DC-DC转换器的高压电动蓄能器，用于自我调节和保护

    公开(公告)号：US20120104861A1

    公开(公告)日：2012-05-03

    申请号：US12914502

    申请日：2010-10-28

    申请人： HASSAN ALI KOJORI ,  HARMOHAN N. SNGH ,  DAVID LAZAROVICH ,  MOMCILO TANIC

    发明人： HASSAN ALI KOJORI ,  HARMOHAN N. SNGH ,  DAVID LAZAROVICH ,  MOMCILO TANIC

    IPC分类号： H02J1/00

    CPC分类号： H01M10/46 ,  H02J7/00 ,  Y10T307/707

    摘要： A power management system may employ a power source, a distribution system between the power source and electrical loads and an energy accumulator. The accumulator may comprise a plurality of energy processing blocks. Each block may have a limited number of energy storage cells connected in series to produce first voltage. A second higher output voltage from the accumulator may be achieved though integrated DC-DC, DC-AC and AC-DC conversion with intermediate boost of AC voltage through high frequency transformers. Bidirectional power flow may be achieved with high efficiency during charge and discharge of the accumulator. Secondary windings of the transformers may be connected with one another in series so that the accumulator can transfer energy between the distribution system and any one or all of the energy processing units in a fault-tolerant and efficient manner.

    摘要翻译： 电力管理系统可以使用电源，电源和电力负载之间的配电系统以及能量蓄能器。 累加器可以包括多个能量处理块。 每个块可以具有有限数量的串联连接的能量存储单元以产生第一电压。 通过集成的DC-DC，DC-AC和AC-DC转换，可以通过高频变压器实现交流电压的中间升压来实现来自蓄电池的第二高输出电压。 在蓄能器的充放电期间，可以以高效率实现双向功率流。 变压器的二次绕组可以彼此串联连接，使得蓄电池能够以容错和有效的方式在配电系统和任何一个或所有能量处理单元之间传递能量。

    ADVANCED ENERGY MANAGEMENT
    5.
    发明申请
    ADVANCED ENERGY MANAGEMENT 有权
    高级能源管理

    公开(公告)号：US20140055111A1

    公开(公告)日：2014-02-27

    申请号：US13593077

    申请日：2012-08-23

    申请人： HASSAN ALI KOJORI

    发明人： HASSAN ALI KOJORI

    IPC分类号： G05F1/10

    CPC分类号： G05F1/44

    摘要： A system adapted to regulate a voltage of a supply bus is described. The system includes a source adapted to supply a source current to the supply bus, a load adapted to draw a load current from the supply bus, and a bi-directional voltage to current converter adapted to provide an output current, where the output current is at least partly based on the source current and the load current.

    摘要翻译： 描述了适于调节供电总线的电压的系统。 该系统包括适于向源电源供应源电流的源，适于从供电总线抽取负载电流的负载以及适于提供输出电流的双向电压至电流转换器，其中输出电流为 至少部分地基于源电流和负载电流。

    ADVANCED MATRIX CONVERTER AND METHOD FOR OPERATION
    6.
    发明申请
    ADVANCED MATRIX CONVERTER AND METHOD FOR OPERATION 失效
    先进的矩阵转换器和操作方法

    公开(公告)号：US20080285314A1

    公开(公告)日：2008-11-20

    申请号：US12118589

    申请日：2008-05-09

    申请人： HASSAN ALI KOJORI

    发明人： HASSAN ALI KOJORI

    IPC分类号： H02M5/45 ,  H02M5/00

    CPC分类号： H02M5/293 ,  H02M1/32 ,  H02M5/271 ,  H02M5/273 ,  H02M2001/344

    摘要： A matrix converter may be provided with AC switches that comprise bi-directional sets of semiconductor switches that are gated with a common gating link. A low loss diode-bridge based snubber may facilitate introduction of time delay between sequential operations of the bi-directional set of semiconductor switches. The matrix converter may be operated in a three-phase mode with only one gating signals for each AC switch, in contrast to prior-art matrix converters which may require use multiple gating signals for each AC switch.

    摘要翻译： 矩阵转换器可以设置有交流开关，其包括通过公共门控连接门控的双向半导体开关组。 基于低损耗二极管桥的缓冲器可以有助于在双向半导体开关组的顺序操作之间引入时间延迟。 与现有技术的矩阵转换器相比，矩阵转换器可以在三相模式下操作，其中每个AC开关仅具有一个门控信号，这可能需要为每个AC开关使用多个选通信号。

    MULTI-MODULE BIDIRECTIONAL DC-DC CONVERTER
    7.
    发明申请
    MULTI-MODULE BIDIRECTIONAL DC-DC CONVERTER 有权
    多模双向DC-DC转换器

    公开(公告)号：US20110254528A1

    公开(公告)日：2011-10-20

    申请号：US12761472

    申请日：2010-04-16

    申请人： HAMID DANESH-PAJOOH-NEJAD ,  PRAVEEN JAIN ,  HASSAN ALI KOJORI ,  ALIREZA BAKHSHAI

    发明人： HAMID DANESH-PAJOOH-NEJAD ,  PRAVEEN JAIN ,  HASSAN ALI KOJORI ,  ALIREZA BAKHSHAI

    IPC分类号： G05F3/08

    CPC分类号： H02M3/33584 ,  H02M2001/0032 ,  Y02B70/16

    摘要： A multi-module bidirectional power converter may comprise a low side common node, a high side common node and at least first and second bidirectional DC/DC converter modules. The modules may comprise first and second low voltage switches, first and second high voltage switches and a transformer. The transformer may comprise a low side winding having first and second legs and a high side winding having first and second legs. The first leg of the low side winding may be connected with the first and second low voltage switches of the module. The second leg of the low side winding may be connected with the low side common node of the multi-module bidirectional power converter. The first leg of the high side winding may be connected with the first and second high voltage switches of the module. The second leg of the high side winding may be connected to the high side common node of the multi-module bidirectional power converter. Such an arrangement may provide operability of the multi-module bidirectional power converter with any one or more of the modules so that efficiency is maintained when electrical loads are high and so that Zero Voltage Switching is maintained when electrical loads are low.

    摘要翻译： 多模块双向功率转换器可以包括低侧公共节点，高侧公共节点和至少第一和第二双向DC / DC转换器模块。 模块可以包括第一和第二低压开关，第一和第二高压开关和变压器。 变压器可以包括具有第一和第二腿部的低侧绕组和具有第一和第二腿部的高侧绕组。 低端绕组的第一段可以与模块的第一和第二低压开关连接。 低侧绕组的第二支路可以与多模块双向功率转换器的低侧公共节点连接。 高边绕组的第一段可以与模块的第一和第二高压开关连接。 高侧绕组的第二支路可以连接到多模块双向功率转换器的高侧公共节点。 这种布置可以提供多模块双向功率转换器与任何一个或多个模块的可操作性，使得当电负载高时保持效率，并且使得当电负载低时维持零电压开关。

    METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION
    8.
    发明申请
    METHOD AND APPARATUS FOR GENERALIZED AC AND DC ARC FAULT DETECTION AND PROTECTION 有权
    用于通用交流和直流电弧故障检测和保护的方法和装置

    公开(公告)号：US20090079436A1

    公开(公告)日：2009-03-26

    申请号：US11859677

    申请日：2007-09-21

    申请人： HASSAN ALI KOJORI ,  Yang Ye

    发明人： HASSAN ALI KOJORI ,  Yang Ye

    IPC分类号： G01R31/12 ,  H02H3/00

    CPC分类号： H02H1/0015 ,  H02H3/0935

    摘要： According to the features discussed herein, through a single generalized arc-fault detection algorithm, various types of series and/or parallel arc faults can be detected without any nuisance trip for either AC or DC Electric Power Systems. Running Discrete Fourier Series (RDFS) formulation for nuisance-free operation and cost-effective implementation is developed. Unlike other methods which require numerous source and load-side current and voltage measurements, only source side current is required. An arc detector may include a first detector to monitor variations of a magnitude of a fundamental component of a current, and a second detector to monitor an overload condition based in an i2t calculation. A method may include obtaining a first cycle of a fundamental component of a current, obtaining a second cycle of the fundamental component of the current, and comparing the first cycle of the fundamental component of the current and the second cycle of the fundamental component of the current to determine if a difference of the first cycle and the second cycle is greater than a threshold amount.

    摘要翻译： 根据本文所讨论的特征，通过单一的广义电弧故障检测算法，可以检测各种类型的串联和/或并联电弧故障，而无需任何AC或DC电力系统的扰动跳闸。 开发了运行离散傅立叶级数（RDFS）制定无障碍操作和成本效益实施。 与需要大量源极和负载侧电流和电压测量的其他方法不同，仅需要源极侧电流。 电弧检测器可以包括第一检测器，用于监测电流的基波分量的幅度变化，以及第二检测器，用于监测基于i2t计算的过载状况。 一种方法可以包括获得电流的基波分量的第一周期，获得电流的基波分量的第二周期，以及比较电流的基波分量的当前和第二周期的基波分量的第一周期 电流以确定第一周期和第二周期的差是否大于阈值量。