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61.发明授权公开(公告)号：US10673226B2
公开(公告)日：2020-06-02
申请号：US15439336
申请日：2017-02-22
申请人： ABB Schweiz AG
发明人： Lathom Alexander Louco , Jeffrey Marcel Kubascik , Shawn Alan Morgan , Lucas Ray Mallory , Craig Benjamin Williams
IPC分类号： G05D3/12 , G05D5/00 , G05D9/00 , G05D11/00 , G05D17/00 , H02H3/08 , H02H3/033 , H02H7/30 , H02H7/26 , H02H1/00 , G05B19/042
摘要： An example electrical power distribution system includes a plurality of circuit protection devices coupled between an electrical power source and a plurality of electrical loads. Each circuit protection device includes a trip unit, a network interface, a processor, and a memory. The trip unit is configured to selectively trip to prevent a flow of electrical current through said circuit protection device. The network interface is communicatively coupled to a communication network including the plurality of circuit protection devices. The memory stores instructions that, when executed by the processor, cause the processor to transmit, using the network interface, circuit protection device data to the network. The circuit protection device data is formatted according to a network communication protocol of the communication network.
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公开(公告)号：US10310003B2
公开(公告)日：2019-06-04
申请号：US15120109
申请日：2015-02-18
摘要： This application relates to methods and apparatus for fault protection in a DC power transmission network or grid that aid in determining the location of a fault in the network. The method involves, in the event of a fault, controlling at least one current limiting element of the network so as to limit a fault current flowing to below a first current level which is within the expected current operating range of the network in normal operation, i.e. a safe level. The fault current is then controlled to maintain a non-zero level of fault current flow and the characteristics of the fault current flow at different parts of the network are determined by fault current detection modules. The location of the fault is then determined based on the determined characteristics.
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公开(公告)号：US20190157021A1
公开(公告)日：2019-05-23
申请号：US16259484
申请日：2019-01-28
申请人： Atom Power, Inc.
发明人： Ryan Kennedy , Denis Kouroussis
摘要： A dynamically coordinatable electrical distribution system includes a plurality of intelligently-controlled protection devices (PDs), a communication and control bus (comm/control) bus, and a central computer. The plurality of intelligently-controlled PDs is configured to protect a plurality of associated electrical loads from faults, developing faults, and other undesired electrical anomalies. Each of the PDs further has electrically adjustable time-current characteristics. The intelligently-controlled PDs are communicatively coupled to the comm/control bus and configured to report current data representative of real-time currents flowing through their respective loads to the central computer, via the comm/control bus. The central computer is configured to communicate with the plurality of PDs over the comm/control bus and dynamically coordinate the time-current characteristics of the plurality of PDs based on the current data it receives from the PDs.
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公开(公告)号：US20180366937A1
公开(公告)日：2018-12-20
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 FT 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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65.发明授权公开(公告)号：US09748763B2
公开(公告)日：2017-08-29
申请号：US14532740
申请日：2014-11-04
摘要： Circuit protection devices, power distribution systems, and methods of monitoring circuit protection devices are described. In one example, a method of monitoring a circuit protection device in a zone selective interlocking (ZSI) system includes monitoring a variable associated with operation of the circuit protection device, determining, based at least in part on the monitored variable, when a likelihood of a malfunction of the circuit protection device exceeds a predetermined threshold, and preventing the circuit protection device from outputting a ZSI blocking signal when the likelihood of the malfunction of the circuit protection device exceeds the threshold.
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公开(公告)号：US09711961B2
公开(公告)日：2017-07-18
申请号：US14533210
申请日：2014-11-05
发明人： Wei Gang Chen , Mario Dankert , Feng Du , Yue Zhuo
摘要： A method is disclosed for diagnosing faults on a communication bus used to transmit zone selective interlocking signals in a power distribution network. The method includes configuring interfaces of all protection devices connected to the same communication bus to be input ports within a first diagnosis time period; detecting, at each protection device connected to the communication bus, an input signal received by the input port thereof; and if abnormality is detected in the input signal, the protection device issuing a first alert associated with the corresponding interface.
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公开(公告)号：US09692224B2
公开(公告)日：2017-06-27
申请号：US14739696
申请日：2015-06-15
IPC分类号： H02H3/00 , H02H3/08 , H02H7/30 , H02H1/00 , H04L12/10 , H04L12/40 , H02H3/05 , H02H7/26 , H02J13/00 , H04L12/00
CPC分类号： H02H3/08 , H02H1/0084 , H02H3/05 , H02H7/261 , H02H7/262 , H02H7/30 , H02J13/00 , H04L12/00 , H04L12/10 , H04L12/40006
摘要： Power distribution systems and methods are described. In one example, a method of testing a power distribution system including a first circuit protection device and a second circuit protection device coupled to the first circuit protection device downstream of the first circuit protection device is described. The method includes monitoring a status of a communicative connection between a ZSI output port of the first circuit protection device and a ZSI input port of the second circuit protection device with a ZSI monitor of the first circuit protection device, detecting whether the ZSI output port of the first circuit protection device is coupled to the ZSI input port of the second circuit protection device, and indicating the status of the communicative connection.
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公开(公告)号：US09692223B2
公开(公告)日：2017-06-27
申请号：US14068419
申请日：2013-10-31
摘要： Power distribution systems and methods are described. In one example, a method of testing a power distribution zone select interlocking system including a first circuit protection device and a second circuit protection device coupled to the first circuit protection device downstream of the first circuit protection device is described. The method includes receiving, by the second circuit protection device, an input instructing the second circuit protection device to test communication between the first circuit protection device and the second circuit protection device, and outputting, by the second circuit protection device, a blocking signal in response to the input. The first circuit protection display an indication of reception of the blocking signal to confirm proper interconnection of the zone select interlocking signals.
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69.发明授权Protection element having integrated distance protection with real time adaptation of the trigger time for detecting and separating high impedance errors in meshed networks 有权具有集成距离保护的保护元件，实时适应触发时间，用于检测和分离网状网络中的高阻抗误差公开(公告)号：US09595826B2
公开(公告)日：2017-03-14
申请号：US14212683
申请日：2014-03-14
发明人： Johannes Brombach , Arno Luecken , Detlef Schulz
摘要： A protection element for a meshed energy supply network of a means of transport, in particular of an aircraft, a meshed energy supply network having such protection elements, a method for protecting such a meshed energy supply network and a computer program for executing the method. The protection element comprises a control unit, which is formed to deduce a trigger time value from a detected fault impedance value of a network error that has occurred in the energy supply network and to adapt the trigger time value in the event of a subsequent change in the fault impedance value of the network error, and a separation unit for interrupting a connection between the protection element and the network error depending on the trigger time value.
摘要翻译： 用于具有这种保护元件的具有这种保护元件的网状能量供应网络的运输工具，特别是运输工具的网状能量供应网络的保护元件，用于保护这种网状能量供应网络的方法和用于执行该方法的计算机程序。 保护元件包括控制单元，其被形成为从在能量供应网络中发生的网络错误的检测到的故障阻抗值推断触发时间值，并且在后续改变的情况下调整触发时间值 网络故障的故障阻抗值，以及用于根据触发时间值中断保护元件与网络之间的连接错误的分离单元。
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公开(公告)号：US09362736B2
公开(公告)日：2016-06-07
申请号：US13456898
申请日：2012-04-26
申请人： Michael Krenz , Carl A. Wagner , Jeffrey T. Wavering , Norbert J. Simper , Josef Maier , Rainer J. Seidel , Michael William Foster
发明人： Michael Krenz , Carl A. Wagner , Jeffrey T. Wavering , Norbert J. Simper , Josef Maier , Rainer J. Seidel , Michael William Foster
摘要： A solid state switch module is provided for use in a power distribution network including an input differential protection connection for receiving a measured current value from an upstream module. The solid state switch module also includes an output differential protection connection for sending a measured current value. The solid state switch module includes a trip outlet for sending a trip signal to an upstream solid state switch, and a trip inlet for receiving a trip signal from a downstream solid state switch. The trip inlet is operably coupled to the switch. A current sensor measures the current value of a connected power transmission line across the solid state switch module. A summer adds a current input from a parallel module with the current measures by the current sensor. A comparator determines whether an amount of current lost between the solid state switch module and an upstream module is acceptable.
摘要翻译： 提供一种用于配电网络的固态开关模块，该配电网络包括用于从上游模块接收测量的电流值的输入差分保护连接。 固态开关模块还包括用于发送测量电流值的输出差分保护连接。 固态开关模块包括用于将跳闸信号发送到上游固态开关的跳闸端口和用于接收来自下游固态开关的跳闸信号的跳闸入口。 跳闸入口可操作地连接到开关。 电流传感器测量穿过固态开关模块的连接电力传输线的电流值。 夏天会从当前传感器添加来自并行模块的当前输入和当前的措施。 比较器确定固态开关模块和上游模块之间的电流损失量是否可接受。
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