CN103812630B - 线路差动保护的时钟同步 - Google Patents
线路差动保护的时钟同步 Download PDFInfo
- Publication number
- CN103812630B CN103812630B CN201310327708.3A CN201310327708A CN103812630B CN 103812630 B CN103812630 B CN 103812630B CN 201310327708 A CN201310327708 A CN 201310327708A CN 103812630 B CN103812630 B CN 103812630B
- Authority
- CN
- China
- Prior art keywords
- clock
- power line
- synchronization
- clocks
- skew
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/04—Circuit arrangements for AC mains or AC distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/08—Synchronising of networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12178590.1A EP2693586B1 (en) | 2012-07-31 | 2012-07-31 | Clock synchronization for line differential protection |
| EP12178590.1 | 2012-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103812630A CN103812630A (zh) | 2014-05-21 |
| CN103812630B true CN103812630B (zh) | 2018-04-24 |
Family
ID=46845606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310327708.3A Active CN103812630B (zh) | 2012-07-31 | 2013-07-31 | 线路差动保护的时钟同步 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9614577B2 (zh) |
| EP (1) | EP2693586B1 (zh) |
| CN (1) | CN103812630B (zh) |
| BR (1) | BR102013018886A2 (zh) |
| CA (1) | CA2822083C (zh) |
| ES (1) | ES2572956T3 (zh) |
| RU (1) | RU2554538C2 (zh) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182174B (zh) * | 2014-06-19 | 2018-03-06 | 国网山西省电力公司电力科学研究院 | 基于备用通道的自我补偿式纵联保护对调同步控制器 |
| EP3136528B1 (de) * | 2015-08-31 | 2020-04-22 | Siemens Aktiengesellschaft | Differentialschutzverfahren, differentialschutzeinrichtung und differentialschutzsystem |
| WO2018050454A1 (de) * | 2016-09-15 | 2018-03-22 | Tridonic Gmbh & Co Kg | Synchronisation von übertragungsknoten |
| DE102016217683A1 (de) * | 2016-09-15 | 2018-03-15 | Tridonic Gmbh & Co. Kg | Synchronisation von Übertragungsknoten |
| EP3355432B1 (de) | 2017-01-25 | 2021-07-14 | Siemens Aktiengesellschaft | Verfahren zum bestimmen eines zeitversatzes zwischen messwerten |
| US10859611B2 (en) * | 2017-06-06 | 2020-12-08 | Schweitzer Engineering Laboratories, Inc. | Measuring and mitigating channel delay in remote data acquisition |
| GB2584279B (en) * | 2019-05-23 | 2021-10-20 | Synaptec Ltd | Methods and apparatus for time-stamping a signal |
| KR102669740B1 (ko) | 2018-08-10 | 2024-05-28 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 위성 통신을 위한 랜덤 액세스 절차 |
| WO2020065469A1 (en) * | 2018-09-27 | 2020-04-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and methods for timing adaptation for satellite communications |
| EP3859926A1 (en) | 2020-01-31 | 2021-08-04 | ABB Power Grids Switzerland AG | Time synchronization between ieds of different substations |
| CN111478295B (zh) * | 2020-04-01 | 2022-06-14 | 南京国电南自电网自动化有限公司 | 一种适用于无线线路差动保护的数据同步方法及系统 |
| CN119024100B (zh) * | 2024-08-26 | 2025-08-29 | 国网湖南省电力有限公司 | 用于线路多端差动保护联调的录波文件同步方法及系统 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5958060A (en) * | 1998-01-02 | 1999-09-28 | General Electric Company | Method and apparatus for clock control and synchronization |
| CN1489819A (zh) * | 2001-01-31 | 2004-04-14 | 电力网保护系统 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490050A (en) * | 1983-04-29 | 1984-12-25 | Rauland-Borg Corporation | Master/slave clock system |
| SE459706B (sv) * | 1987-11-12 | 1989-07-24 | Asea Ab | Laengsdifferentialskydd |
| US5576625A (en) * | 1994-02-07 | 1996-11-19 | Kabushiki Kaisha Toshiba | Test method and apparatus for testing a protective relay system |
| KR100465944B1 (ko) * | 2000-10-06 | 2005-01-13 | 가부시끼가이샤 도시바 | 디지털 보호계전장치 |
| GB0128243D0 (en) * | 2001-11-26 | 2002-01-16 | Cognima Ltd | Cognima patent |
| US20040179432A1 (en) * | 2003-03-12 | 2004-09-16 | Burke Michael P. | Universal clock |
| US7126800B2 (en) * | 2003-07-11 | 2006-10-24 | General Electric Company | Method and system for communications channel delay asymmetry compensation using global positioning systems |
| US7180412B2 (en) * | 2003-07-24 | 2007-02-20 | Hunt Technologies, Inc. | Power line communication system having time server |
| US6915219B2 (en) * | 2003-08-29 | 2005-07-05 | General Electric Company | Method for canceling transient errors in unsynchronized digital current differential transmission line protection systems |
| US7684441B2 (en) * | 2005-07-01 | 2010-03-23 | Bickel Jon A | Automated precision alignment of data in a utility monitoring system |
| JP4908018B2 (ja) * | 2006-02-28 | 2012-04-04 | 株式会社東芝 | 電流差動継電装置とその信号処理方法、および送電線保護システム |
| US7583771B2 (en) * | 2006-08-22 | 2009-09-01 | Schweitzer Engineering Laboratories, Inc. | Systems and methods for resampling unreliable data |
| RU2425437C1 (ru) * | 2007-07-23 | 2011-07-27 | Абб Текнолоджи Аг | Способ и защитное устройство для расчета электрической сети при переключении маршрута в сети дальней связи |
| EP2023456A1 (en) * | 2007-08-06 | 2009-02-11 | Abb Research Ltd. | Estimating a time offset between stationary clocks |
| WO2009042964A1 (en) * | 2007-09-28 | 2009-04-02 | Schweitzer Engineering Laboratories, Inc. | Amplitude and phase comparators for line protection |
| FR2932028B1 (fr) * | 2008-06-02 | 2012-12-14 | Areva T & D Prot Controle | Procede et systeme de protection differentielle d'une liaison electrique dans un reseau moyenne, haute ou tres haute tension |
| EP2211479A1 (en) * | 2009-01-15 | 2010-07-28 | ABB Technology AG | Communication method and system |
| US20100192001A1 (en) * | 2009-01-29 | 2010-07-29 | Itron, Inc. | Device time adjustment for accurate data exchange |
| US8891338B2 (en) * | 2009-01-29 | 2014-11-18 | Itron, Inc. | Measuring the accuracy of an endpoint clock from a remote device |
| US8154836B2 (en) * | 2009-09-17 | 2012-04-10 | Schweitzer Engineering Laboratories, Inc. | Line current differential protection upon loss of an external time reference |
| US8718959B2 (en) * | 2009-12-15 | 2014-05-06 | Siemens Industry, Inc. | Method and apparatus for high-speed fault detection in distribution systems |
| US9106365B1 (en) * | 2011-12-22 | 2015-08-11 | Landis+Gyr Technologies, Llc | Time-keeping between devices using power distribution line communications |
| WO2014002191A1 (ja) * | 2012-06-26 | 2014-01-03 | 三菱電機株式会社 | 電流差動リレー |
| US9270442B2 (en) * | 2014-04-29 | 2016-02-23 | Schweitzer Engineering Laboratories, Inc. | Time signal propagation delay correction |
-
2012
- 2012-07-31 EP EP12178590.1A patent/EP2693586B1/en active Active
- 2012-07-31 ES ES12178590.1T patent/ES2572956T3/es active Active
-
2013
- 2013-07-24 BR BRBR102013018886-7A patent/BR102013018886A2/pt not_active IP Right Cessation
- 2013-07-24 CA CA2822083A patent/CA2822083C/en active Active
- 2013-07-24 US US13/949,442 patent/US9614577B2/en active Active
- 2013-07-30 RU RU2013135763/08A patent/RU2554538C2/ru active
- 2013-07-31 CN CN201310327708.3A patent/CN103812630B/zh active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5958060A (en) * | 1998-01-02 | 1999-09-28 | General Electric Company | Method and apparatus for clock control and synchronization |
| CN1489819A (zh) * | 2001-01-31 | 2004-04-14 | 电力网保护系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2822083C (en) | 2016-05-03 |
| CN103812630A (zh) | 2014-05-21 |
| US20140036963A1 (en) | 2014-02-06 |
| EP2693586B1 (en) | 2016-04-06 |
| ES2572956T3 (es) | 2016-06-03 |
| CA2822083A1 (en) | 2014-01-31 |
| RU2013135763A (ru) | 2015-02-10 |
| BR102013018886A2 (pt) | 2015-01-06 |
| RU2554538C2 (ru) | 2015-06-27 |
| US9614577B2 (en) | 2017-04-04 |
| EP2693586A1 (en) | 2014-02-05 |
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| ELSHAFI | D. WILLIAMS1, R. JODRIE2, K. FODERO3, P. ROBERTSON3, C. HUNTLEY3 |
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Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
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Effective date of registration: 20240105 Address after: Zurich, SUI Patentee after: Hitachi Energy Co.,Ltd. Address before: Swiss Baden Patentee before: Hitachi energy Switzerland AG |