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公开(公告)号：US11128119B2
公开(公告)日：2021-09-21
申请号：US15628622
申请日：2017-06-20
发明人： David L. Smith , Michael J. Putt , Benny Naranjo
摘要： A power distribution system adapted for high current fault management during a fault event utilizes reclosing switches configured for a quick-slow-quick reclosing sequence in which the reclosing switch initially responds to the fault condition by tripping open, and then after a delay recloses for a first duration of time (slow) prior to tripping open. After another delay, the reclosing switch recloses for a second duration of time (quick) that is less than the first duration of time prior to tripping open for an indefinite interval. When installed in new segments or retrofitted in place of a fuse, reclosing switches configured with quick-slow-quick reclose timing allows for reduction of downstream customer outages, reduced I2T exposure for elements upstream of a fault event and a reduction in the duration of voltage sags experienced by customers during fault events while allowing for improved fault management configurations of the power distribution system.
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公开(公告)号：US11018499B2
公开(公告)日：2021-05-25
申请号：US17071852
申请日：2020-10-15
摘要： A method for controlling a power distribution network includes receiving, by an electronic processor, a fault indication associated with a fault in the power distribution network from a first isolation device of a plurality of isolation devices. The processor identifies a first subset of a plurality of phases associated with the fault indication and a second subset of the plurality of phases not associated with the fault indication. The first and second subsets each include at least one member. The processor identifies an upstream isolation device upstream of the fault. The processor identifies a downstream isolation device downstream of the fault. The processor sends an open command to the downstream isolation device for each phase in the first subset. Responsive to the first isolation device not being the upstream isolation device, the processor sends a close command to the first isolation device for each phase in the first subset.
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公开(公告)号：US10418804B2
公开(公告)日：2019-09-17
申请号：US16037227
申请日：2018-07-17
申请人： S&C Electric Company
摘要： A fault protection system for an electrical power distribution system and a method of configuring and operating a fault protection system for an electrical power distribution system accepts device fault protection parameters, such as the time-current-characteristics (TCC's), of boundary devices, and selects and sets fault protection parameters for one or more fault protection devices, such as fault-interrupters, that thus coordinate with the boundary devices. Fault protection parameter selection for each fault protection device may occur automatically, and each device may reconfigure its fault protection parameters based upon changes in the electrical power distribution system, for example, as the result of fault isolation and/or service restoration.
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公开(公告)号：US10218167B2
公开(公告)日：2019-02-26
申请号：US15140598
申请日：2016-04-28
摘要： A circuit breaker includes a tripping unit for interrupting an electrical circuit, and at least one current sensor for determining the electrical current flowing through the circuit breaker, connected to a control unit and configured such that the determined current is compared with current/period limit values. If a current/period limit value is exceeded, the tripping unit interrupts the electrical circuit. The current/period limit values include an adjustable first current limit value, present for a first period for an interruption; an adjustable second period, during which a second current limit value must be present to effect an interruption; and a range between the first current limit value and the second current limit value, the period decreasing with increasing current limit values in order to effect an interruption. The second current limit value can be adjusted at the circuit breaker.
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5.发明授权公开(公告)号：US09594389B2
公开(公告)日：2017-03-14
申请号：US14347891
申请日：2011-09-30
申请人： Cheol-Min Chu , Sang-Yun Yun , Seong-Chul Kwon , Il-Keun Song
发明人： Cheol-Min Chu , Sang-Yun Yun , Seong-Chul Kwon , Il-Keun Song
CPC分类号： G05F1/66 , H02H1/0092 , H02H3/006 , H02H7/261 , H02H7/30 , H02J13/0006 , Y02E60/725 , Y04S10/20
摘要： Provided are a device and a method for automatically coordinating a protection device of a smart power distribution management system, wherein a protection coordination correction value of the protection device is calculated via topology analysis and system analysis of a distribution system so as to apply the result to a smart power distribution management system. The device for automatically coordinating a protection device as provided comprises: generating the topology information by obtaining the status information of the distribution system; setting machines, which transmit and received data when an event occurs, to communicate for each of a plurality of protection devices based on the topology information; calculating a system power flow including the power flow direction based on the topology information; and calculating a fault current which is generated upon the failure of the distribution system based on the topology information, thereby generating a protection coordination correction value.
摘要翻译： 提供了一种用于自动协调智能配电管理系统的保护装置的装置和方法，其中通过分布系统的拓扑分析和系统分析来计算保护装置的保护协调校正值，以将结果应用于 智能配电管理系统。 用于自动协调所提供的保护装置的装置包括：通过获得分配系统的状态信息来生成拓扑信息; 设置机器，其在事件发生时发送和接收数据，以基于所述拓扑信息为多个保护设备中的每一个进行通信; 基于拓扑信息计算包括功率流方向的系统功率流; 以及基于所述拓扑信息计算在所述分配系统发生故障时产生的故障电流，从而生成保护协调校正值。
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公开(公告)号：US09502882B2
公开(公告)日：2016-11-22
申请号：US14245264
申请日：2014-04-04
申请人： EATON CORPORATION
发明人： Qiang Fu , Yi Yang , Charles John Luebke , Xin Zhou
CPC分类号： H02H3/093 , H02H1/0076 , H02H7/261 , H02H7/30
摘要： A method of protecting a power distribution system from a fault on a feed conductor thereof, wherein an HFAC signal is provided to the feed conductor from a location downstream of the feed conductor in the power distribution system. The method includes, in a module located upstream of the feed conductor in the power distribution system, determining an HFAC signal magnitude in the module, the module including a circuit interrupter, and controlling operation of the circuit interrupter based on the determined magnitude.
摘要翻译： 一种保护配电系统免受其馈电导体上的故障的一种方法，其中HFAC信号从配电系统中馈电导体的下游位置提供给馈电导体。 该方法包括在位于配电系统中的馈电导体上游的模块中，确定模块中的HFAC信号幅度，模块包括电路中断器，以及基于所确定的幅度来控制电路断续器的操作。
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公开(公告)号：US09391441B2
公开(公告)日：2016-07-12
申请号：US13610992
申请日：2012-09-12
CPC分类号： H02H1/0023 , H02H7/22 , H02H7/263 , H02H7/30
摘要： Nuisance tripping is reduced in a power protection and distribution system including an upstream circuit breaker, a power distribution bus, and one or more downstream circuit breakers. A signal indicative of a current or pending downstream circuit breaker tripping action, such as a Zone Selective Interlocking (ZSI) signal, normally used to delay tripping of the upstream breaker, is used to suppress an optical flash detection system from tripping the upstream breaker in response to an optical flash resulting from the tripping of the downstream breaker. In this way, nuisance tripping of the upstream breaker is avoided when the downstream breaker trips (and the ZSI function is preserved).
摘要翻译： 在包括上游断路器，配电总线和一个或多个下游断路器的电力保护和分配系统中，扰动跳闸减少。 通常使用指示当前或未决的下游断路器跳闸动作的信号，例如通常用于延迟上游断路器跳闸的区域选择性联锁（ZSI）信号，以抑制光学闪光检测系统从而使上游断路器跳闸 响应于由下游断路器跳闸导致的光学闪光。 以这种方式，当下游断路器跳闸（并保持ZSI功能）时，可以避免上游断路器的故障跳闸。
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8.发明授权公开(公告)号：US08981951B2
公开(公告)日：2015-03-17
申请号：US13504482
申请日：2009-11-05
申请人： Sankara Subramanian , Simon Richards , Alan Wixon
发明人： Sankara Subramanian , Simon Richards , Alan Wixon
摘要： A method of monitoring the grading margin between at least two time-current characteristics of Intelligent Electronic Devices (IEDA, IEDB) installed in an electrical power system, each Intelligent Electronic Device comprising a counting means, the grading margin comprising a safety margin set by a user, characterized in that it comprises, when a fault occurs which causes a fault current in the electrical power system, a step of providing a warning to the user when the safety margin is infringed upon.
摘要翻译： 一种监视安装在电力系统中的智能电子设备（IEDA，IEDB）的至少两个时间电流特性之间的分级余量的方法，每个智能电子设备包括计数装置，所述分级余量包括由 用户，其特征在于，当发生导致电力系统中的故障电流的故障时，包括当安全边际被侵害时向用户提供警告的步骤。
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9.发明授权Method and device for protection zone selection in a multiple busbar arrangement 有权多母线安排中保护区选择的方法和装置公开(公告)号：US08867185B2
公开(公告)日：2014-10-21
申请号：US14136949
申请日：2013-12-20
申请人： Li He
发明人： Li He
摘要： Method of protection zone selection in a multiple busbar arrangement, the multiple busbar arrangement including busbar zones and bays connectable to the busbar zones, which bays include measurement transformers. The method includes the steps of: receiving first connection data including information of an operational status of measurement transformer to busbar zone connections; determining all pairs of connected busbar zone to busbar zone connections based on the first connection data; comparing data representing pairs of busbar zone to busbar zone connections, based on the comparing; assigning each pair of busbar zones which has a busbar zone in common with at least another pair of busbar zone to busbar zone connection to a respective protection zone; and defining any busbar zone that is not connected to any other busbar zone as a protection zone. The present invention also relates to a computer program product and a device for carrying out the method.
摘要翻译： 多母线布置中的保护区选择方法，多母线布置包括母线区和可连接到汇流排区的托架，其中包括测量变压器。 该方法包括以下步骤：接收包括测量变压器的操作状态的信息的第一连接数据到母线区域连接; 基于所述第一连接数据确定所有连接的母线区域对与母线区域连接; 基于比较，比较表示母线区域对母线区域连接的数据; 将具有与至少另一对母线区共同的母线区的每对母线区分配到与相应保护区的母线区连接; 并且将未连接到任何其它母线区域的任何母线区域定义为保护区域。 本发明还涉及一种用于执行该方法的计算机程序产品和装置。
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10.发明申请Fault Protection System and Method for an Electrical Power Distribution System 审中-公开电力配电系统故障保护系统及方法公开(公告)号：US20090290275A1
公开(公告)日：2009-11-26
申请号：US12091338
申请日：2006-10-03
IPC分类号： H02H7/30
摘要： A fault protection system for an electrical power distribution system and a method of configuring and operating a fault protection system for an electrical power distribution system accepts device fault protection parameters, such as the time-current-characteristics (TCCs), of boundary devices, and selects and sets fault protection parameters for one or more fault protection devices, such as fault-interrupters, that thus coordinate with the boundary devices. Fault protection parameter selection for each fault protection device may occur automatically, and each device may reconfigure its fault protection parameters based upon changes in the electrical power distribution system, for example, as the result of fault isolation and/or service restoration.
摘要翻译： 用于配电系统的故障保护系统以及配电和运行配电系统的故障保护系统的方法接受边界设备的设备故障保护参数，如时间 - 电流特性（TCC），以及 为一个或多个故障保护设备选择和设置故障保护参数，例如故障中断器，从而与边界设备协调。 每个故障保护装置的故障保护参数选择可以自动进行，并且每个设备可以根据配电系统的变化（例如，故障隔离和/或服务恢复的结果）重新配置其故障保护参数。
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