公开(公告)号：US11973338B2

公开(公告)日：2024-04-30

申请号：US18278237

申请日：2022-03-11

Applicant: DIGITAL GRID RES. INST., CHINA SOUTHERN PWR. GRID

Inventor： Peng Li ,  Wei Xi ,  Xiaobo Li ,  Hao Yao ,  Yang Yu ,  Tiantian Cai ,  Junjian Chen

IPC: H02H7/00 ,  H02H1/00 ,  H02H7/26

CPC classification number: H02H7/262 ,  H02H1/0092

Abstract: A chip-level software and hardware cooperative relay protection device is provided. The device includes: a control chip, wherein a first control unit, a second control unit, and multiple logic circuits are integrated on the control chip; and the logic circuits perform microsecond-level rapid calculation on electrical signals of a protected electrical device, obtain fault feature parameters of the protected electrical device are and transmit same to the first control unit, then perform millisecond-level real-time protection logic determination according to the fault feature parameters of the protected electrical device to obtain relay protection results of the protected electrical device, and protect the protected electrical device by controlling an external relay according to the relay protection results. When the first control unit protects the protected electrical device, the second control unit performs second-level quasi-real-time management communication function processing on operation data generated by the first control unit and the logic circuits.

公开(公告)号：US11831152B2

公开(公告)日：2023-11-28

申请号：US17340120

申请日：2021-06-07

Applicant: Eaton Intelligent Power Limited

Inventor： Volker Heins ,  Axel Britz ,  Amritendu Das ,  Yogesh Rajwade ,  Himadri Sengupta ,  Sandeep Yeole ,  Christoph Bausch

IPC: H02H7/26 ,  G01R31/52

CPC classification number: H02H7/262 ,  G01R31/52

Abstract: A short circuit test device includes: a first line test conductor couplable to a first load line conductor of an electric load network and a neutral test conductor couplable to a neutral conductor of the electric load network; a voltage source switchable to the first line test conductor and the neutral test conductor to output a predefinable test signal; a measurement unit for measuring an electric voltage and/or current, the measurement unit including measurement inputs which are connectable to the first line test conductor and the neutral test conductor, the measurement unit including an output for providing a measurement signal; and a control unit connected to the voltage source and the measurement unit, the control unit: causing the voltage source to apply a test voltage to the first line test conductor and the neutral test conductor and comparing the measurement signal provided by the measurement unit.

公开(公告)号：US11831147B2

公开(公告)日：2023-11-28

申请号：US17672422

申请日：2022-02-15

Applicant: Viking Protection Systems LLC

Inventor： Robert B. Stuart ,  Ronald E. Smith

IPC: H02H3/16 ,  H02H3/00 ,  H02H7/26

CPC classification number: H02H3/165 ,  H02H3/006 ,  H02H7/262

Abstract: A method for preventing ground fault in a three-phase electric transmission line system caused by a line break, includes: providing a programmable relay protection system, including a plurality of relay devices on each line, programmed to include: preset parameter ranges of at least two electric operating conditions, at least one high sensitivity instantaneous undercurrent and at least one high sensitivity condition selected from line differential overcurrent and negative sequence overcurrent (and combinations thereof), the preset ranges being acceptable operating parameter ranges; monitoring; permitting closed circuit operation when all of the lines show that the two operating conditions are within the preset acceptable operating parameter ranges; tripping a circuit breaker on a broken line when that line shows that the two operating conditions are outside the preset parameter ranges; and shutting down power to the broken line before it otherwise causes a ground fault or other short circuit.

公开(公告)号：US11817702B2

公开(公告)日：2023-11-14

申请号：US17185378

申请日：2021-02-25

Applicant: S&C Electric Company

Inventor： Martin T Bishop ,  Stephen E Williams ,  Michael John Meisinger, Sr.

IPC: H02J3/00 ,  H02H7/26 ,  H02J3/14

CPC classification number: H02J3/0012 ,  H02H7/262 ,  H02H7/263 ,  H02J3/14

Abstract: A power restoration system for restoring power to feeder segments in response to a fault. The system includes a reclosing device having a switch and one or more sensors for measuring current and/or voltage on the feeder, where the reclosing device performs a pulse testing process to determine circuit fault conditions. The system also includes a plurality of switching devices electrically coupled along the feeder, where each switching device includes a section switch and one or more sensors for measuring current and/or voltage on the at least one feeder. In one embodiment, each switching device recognizes predetermined pulse codes having a sequence of pulses, where the reclosing device uses the pulse testing process to generate and selectively transmit defined pulse codes on the feeder that selectively cause the section switches to change states between an open state and a closed state depending on the code.

公开(公告)号：US09705311B1

公开(公告)日：2017-07-11

申请号：US12965659

申请日：2010-12-10

Applicant: Igal Brener ,  Xiaoyu Miao ,  Eric A. Shaner ,  Brandon Scott Passmore

Inventor： Igal Brener ,  Xiaoyu Miao ,  Eric A. Shaner ,  Brandon Scott Passmore

IPC: H01L31/02 ,  H02H7/26 ,  H01L31/0264

CPC classification number: H02H7/262 ,  G02B1/002 ,  H01L31/02 ,  H01L31/0264 ,  H01L31/0304 ,  H01L31/08 ,  H01Q15/0066 ,  H01Q15/0086 ,  Y02B10/10 ,  Y02E10/544

Abstract: A mid-infrared tunable metamaterial comprises an array of resonators on a semiconductor substrate having a large dependence of dielectric function on carrier concentration and a semiconductor plasma resonance that lies below the operating range, such as indium antimonide. Voltage biasing of the substrate generates a resonance shift in the metamaterial response that is tunable over a broad operating range. The mid-infrared tunable metamaterials have the potential to become the building blocks of chip based active optical devices in mid-infrared ranges, which can be used for many applications, such as thermal imaging, remote sensing, and environmental monitoring.

公开(公告)号：US20170163029A1

公开(公告)日：2017-06-08

申请号：US14958570

申请日：2015-12-03

Applicant: ABB Inc.

Inventor： Junho Hong ,  Reynaldo Nuqui

IPC: H02H7/26

CPC classification number: H02H7/262 ,  H02H7/263

Abstract: An example method for detecting and mitigating attacks on electric power substations comprises detecting a command to open or close a circuit breaker in the electric power substation. A modified extended substation model for the electric power substation is generated, based on the detected command and based on measurements in substation, where the modified extended substation model is a power flow model for the substation and for one or more directly connected neighboring substations. A power flow analysis is performed, using the modified extended substation model, to generate a predicted voltage for each of a plurality of nodes in the substation and in the one or more directly connected neighboring substations. Each predicted voltage is compared to a corresponding allowable voltage range, and execution of the command is blocked in response to determining that one or more of the voltages is outside the corresponding allowable voltage range.

公开(公告)号：US09337649B2

公开(公告)日：2016-05-10

申请号：US13159678

申请日：2011-06-14

Applicant: Atul Nigam ,  Ramon Juan San Andres

Inventor： Atul Nigam ,  Ramon Juan San Andres

IPC: G06F11/00 ,  H02H7/26 ,  G06F11/07 ,  H02H1/00 ,  H02J13/00

CPC classification number: H02H7/262 ,  G06F11/0784 ,  G06F11/0793 ,  H02H1/0084 ,  H02H1/0092 ,  H02J13/0079 ,  Y02E60/725 ,  Y04S10/20 ,  Y04S10/525

Abstract: Aspects of the invention provide for a fault processing system. In one embodiment, the fault processing system includes: a first processing engine wrapper having: an inbound pipe configured to obtain a first claimcheck data packet; a processing engine component configured to: process a first context message derived from the first claimcheck data packet according to a fault rule selected from: a fault detection rule, a fault location rule, a fault isolation rule, or a fault restoration rule; and generate a second context message, the second context message including data processed according to the selected fault rule; and an outbound pipe configured to provide a second claimcheck data packet derived from the second context message.

Abstract translation: 本发明的方面提供了一种故障处理系统。 在一个实施例中，所述故障处理系统包括：第一处理引擎包装器，其具有：配置成获得第一权利要求检查数据包的入站管道; 处理引擎部件，其被配置为：根据从故障检测规则，故障定位规则，故障隔离规则或故障恢复规则中选择的故障规则，处理从所述第一权利要求检查数据分组导出的第一上下文消息; 并产生第二上下文消息，所述第二上下文消息包括根据所选择的故障规则处理的数据; 以及配置为提供从第二上下文消息导出的第二权利要求检查数据分组的出站管道。

公开(公告)号：US20150116877A1

公开(公告)日：2015-04-30

申请号：US14068419

申请日：2013-10-31

Applicant: General Electric Company

Inventor： Arun Kumar Singh ,  Gary Vincent Hanrahan ,  Scott Jeffrey Hall

IPC: H02H3/05 ,  H02H3/02

CPC classification number: H02H3/05 ,  H02H3/021 ,  H02H3/044 ,  H02H7/262 ,  H02H7/30

Abstract: 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.

Abstract translation: 描述配电系统和方法。 在一个示例中，描述了测试配电区域选择联锁系统的方法，该联动系统包括耦合到第一电路保护装置下游的第一电路保护装置的第一电路保护装置和第二电路保护装置。 该方法包括由第二电路保护装置接收指示第二电路保护装置测试第一电路保护装置与第二电路保护装置之间的通信的输入，并由第二电路保护装置输出阻塞信号 响应输入。 第一电路保护显示接收阻塞信号的指示，以确认区域选择互锁信号的正确互连。

公开(公告)号：US20140240881A1

公开(公告)日：2014-08-28

申请号：US14212683

申请日：2014-03-14

Applicant: Airbus Operations GmbH

Inventor： Johannes Brombach ,  Arno Luecken ,  Detlef Schulz

IPC: H02H7/22

CPC classification number: H02H7/222 ,  G01R31/085 ,  H02H3/40 ,  H02H7/26 ,  H02H7/262 ,  H02H7/28 ,  H02H7/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140136006A1

公开(公告)日：2014-05-15

申请号：US14134612

申请日：2013-12-19

Applicant: Andre Smit

Inventor： Andre Smit

IPC: G05F1/66

CPC classification number: G05F1/66 ,  H02H1/0084 ,  H02H1/0092 ,  H02H3/305 ,  H02H7/262

Abstract: A method and system for programming and implementing automated fault isolation and restoration of high-speed fault detection of circuits in power distribution networks using sequential logic and peer-to-peer communication is provided. High-speed fault detection of circuits in power distribution networks uses protective relay devices (14) segmenting a distribution line (11) having Intelligent Electronic Devices (IED) (22) associated with switching devices (20) communicating peer-to-peer via a communication system (30) to provide fast and accurate fault location information in distribution systems with sequential logic.

Abstract translation: 提供了一种用于编程和实现使用顺序逻辑和对等通信的配电网络中电路的高速故障检测的自动故障隔离和恢复的方法和系统。 配电网络中的电路的高速故障检测使用保护中继装置（14），分割具有智能电子设备（IED）（22）的分配线路（11），所述智能电子设备（IED）（22）与通过点对点 通信系统（30），以便在具有顺序逻辑的配电系统中提供快速准确的故障定位信息。