MX2010002165A - Sistemas y metodos para deteccion de variacion de energia y perdida de sincronia utilizando datos marcados en tiempo. - Google Patents

Sistemas y metodos para deteccion de variacion de energia y perdida de sincronia utilizando datos marcados en tiempo.

Info

Publication number
MX2010002165A
MX2010002165A MX2010002165A MX2010002165A MX2010002165A MX 2010002165 A MX2010002165 A MX 2010002165A MX 2010002165 A MX2010002165 A MX 2010002165A MX 2010002165 A MX2010002165 A MX 2010002165A MX 2010002165 A MX2010002165 A MX 2010002165A
Authority
MX
Mexico
Prior art keywords
location
electrical power
power system
systems
methods
Prior art date
Application number
MX2010002165A
Other languages
English (en)
Inventor
Armando Guzman-Casillas
Original Assignee
Schweitzer Engineering Lab Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Publication of MX2010002165A publication Critical patent/MX2010002165A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/18—Indicating phase sequence; Indicating synchronism
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • 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
    • 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
    • H02H3/30—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 using pilot wires or other signalling channel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Se puede colocar un primer dispositivo eléctrico inteligente (lED) en un primer lugar en un sistema de energía eléctrica y se puede colocar un segundo IED en un segundo lugar en el sistema de energía eléctrica. Se pueden recibir mediciones de voltaje desde el primero y segundo IED. Las mediciones pueden estar alineadas en tiempo y se pueden utilizar para calcular una diferencia de ángulo entre la primera ubicación y la segunda ubicación en un sistema de energía eléctrica. Se puede derivar un deslizamiento de frecuencia y aceleración a partir de la diferencia de ángulo. La diferencia de ángulo, la frecuencia de deslizamiento y la aceleración se pueden utilizar para detectar una condición fuera de etapa (OOS) en el sistema de energía eléctrica y/o en la oscilación de energía entre la primera ubicación y la segunda ubicación en el sistema de energía eléctrica. La diferencia de ángulo, la frecuencia de deslizamiento y la aceleración también se pueden utilizar para detectar, de manera predictiva, condiciones OOS.
MX2010002165A 2007-09-28 2008-09-26 Sistemas y metodos para deteccion de variacion de energia y perdida de sincronia utilizando datos marcados en tiempo. MX2010002165A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97627207P 2007-09-28 2007-09-28
PCT/US2008/078018 WO2009042966A1 (en) 2007-09-28 2008-09-26 Systems and methods for power swing and out-of- step detection using time stamped data

Publications (1)

Publication Number Publication Date
MX2010002165A true MX2010002165A (es) 2010-06-02

Family

ID=40509760

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010002165A MX2010002165A (es) 2007-09-28 2008-09-26 Sistemas y metodos para deteccion de variacion de energia y perdida de sincronia utilizando datos marcados en tiempo.

Country Status (4)

Country Link
US (1) US7930117B2 (es)
CA (1) CA2700973C (es)
MX (1) MX2010002165A (es)
WO (1) WO2009042966A1 (es)

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987059B2 (en) * 2007-10-09 2011-07-26 Schweitzer Engineering Laboratories, Inc Real-time power system oscillation detection using modal analysis
US8321162B2 (en) * 2007-10-09 2012-11-27 Schweitzer Engineering Laboratories Inc Minimizing circulating current using time-aligned data
US8405944B2 (en) * 2007-10-09 2013-03-26 Schweitzer Engineering Laboratories Inc Distributed bus differential protection using time-stamped data
US7856327B2 (en) * 2007-10-09 2010-12-21 Schweitzer Engineering Laboratories, Inc. State and topology processor
CN101889377B (zh) * 2007-12-13 2013-03-27 阿海珐T&D英国有限公司 设置电力系统中失步状态的自由检测的方法
US8346402B2 (en) * 2009-05-11 2013-01-01 Schweitzer Engineering Laboratories Inc Islanding detection in an electrical power delivery system
RU2503111C2 (ru) * 2009-06-15 2013-12-27 Абб Текнолоджи Аг Устройство для защиты оборудования энергетической системы
US8554385B2 (en) * 2009-09-11 2013-10-08 Schweitzer Engineering Laboratories Inc. Systems and methods for monitoring and controlling electrical system stability
US8476874B2 (en) 2009-10-13 2013-07-02 Schweitzer Engineering Laboratories, Inc Systems and methods for synchronized control of electrical power system voltage profiles
EP2312719B1 (en) * 2009-10-16 2012-08-01 ABB Research Ltd. Investigating timing reliability in relation to control of a power transmission system
US8706309B2 (en) 2010-04-10 2014-04-22 Schweitzer Engineering Laboratories Inc Systems and method for obtaining a load model and related parameters based on load dynamics
US8965592B2 (en) 2010-08-24 2015-02-24 Schweitzer Engineering Laboratories, Inc. Systems and methods for blackout protection
US9008850B2 (en) 2010-08-24 2015-04-14 Schweitzer Engineering Laboratories, Inc. Systems and methods for under-frequency blackout protection
US10310480B2 (en) 2010-08-24 2019-06-04 Schweitzer Engineering Laboratories, Inc. Systems and methods for under-frequency blackout protection
US8792217B2 (en) 2010-09-15 2014-07-29 Schweitzer Engineering Laboratories Inc Systems and methods for protection of components in electrical power delivery systems
US8738191B2 (en) * 2010-09-17 2014-05-27 Sarantos K. Aivaliotis System and method for power grid management
EP2490031B1 (en) * 2011-02-15 2013-04-24 ABB Technology AG Method and system for measuring an electrical quantity in an electrical network
WO2013025836A1 (en) 2011-08-15 2013-02-21 Digimarc Corporation A/b/c phase determination using common electric smart meters
US9128130B2 (en) 2011-09-15 2015-09-08 Schweitzer Engineering Laboratories, Inc. Systems and methods for synchronizing distributed generation systems
US9043040B2 (en) 2012-01-31 2015-05-26 General Electric Company Power system stabilization
US20130234680A1 (en) * 2012-03-08 2013-09-12 General Electric Company Power system stabilization
US9520717B2 (en) * 2012-04-18 2016-12-13 Abb Research Ltd. Distributed electrical power network model maintenance
US8912792B2 (en) * 2012-08-24 2014-12-16 Schweitzer Engineering Laboratories, Inc. Systems and methods for rotor angle measurement in an electrical generator
RU2510034C1 (ru) * 2012-10-11 2014-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Калининградский государственный технический университет" Способ измерения фазной емкости электросети
US8773829B2 (en) * 2012-10-31 2014-07-08 General Electric Company Method and system for power swing detection in a generator
EP2746788B1 (en) * 2012-12-21 2016-04-06 ABB Technology AG A method of out of step detection in electrical power network
EP2747230B1 (en) 2012-12-21 2016-04-06 ABB Technology AG A power-based method of out of step detection in electrical power network
US9478378B2 (en) 2013-01-04 2016-10-25 Schweitzer Engineering Laboratories, Inc. Preventing out-of-synchronism reclosing between power systems
AU2014216126A1 (en) 2013-02-14 2015-08-06 Schweitzer Engineering Laboratories, Inc. Detection of poorly damped oscillation modes
US20140371929A1 (en) * 2013-06-17 2014-12-18 Schweitzer Engineering Laboratories, Inc. Source Impedance Estimation
US10024920B2 (en) 2013-08-16 2018-07-17 General Electric Company Systems and methods for swing angle estimation in an electrical power system
US10436823B2 (en) 2013-08-16 2019-10-08 General Electric Company Systems and methods for swing angle estimation in an electrical power system
US9128140B2 (en) 2013-09-16 2015-09-08 Schweitzer Engineering Laboratories, Inc. Detection of a fault in an ungrounded electric power distribution system
US9985860B2 (en) * 2013-09-23 2018-05-29 Schweitzer Engineering Laboratories, Inc. Selection and display of polled and streamed electric power system measurements
US10317467B2 (en) 2014-05-19 2019-06-11 Schweitzer Engineering Laboratories, Inc. Synchronous machine monitoring and determination of a loss-of-field event using time stamped electrical and mechanical data
US9590545B2 (en) * 2014-11-26 2017-03-07 Kohler, Co. Power angle calculation for alternator controller
US10256758B2 (en) 2014-11-26 2019-04-09 Kohler Co. Printed circuit board based exciter
DE102014119158A1 (de) * 2014-12-19 2016-06-23 Maschinenfabrik Reinhausen Gmbh Selektives Parallellaufverfahren für Mess-/Steuergeräte
US9798342B2 (en) 2015-02-23 2017-10-24 Schweitzer Engineering Laboratories, Inc. Detection and correction of fault induced delayed voltage recovery
CN108139439B (zh) * 2015-10-14 2021-01-29 施瓦哲工程实验有限公司 高频电力系统信号处理系统
EP3375065A4 (en) * 2015-11-09 2019-09-04 ABB Schweiz AG PROTECTION STRATEGY FOR AN ELECTRICAL SYSTEM WITH SLIP RATE CALCULATION
US10063124B2 (en) 2015-12-10 2018-08-28 Schweitzer Engineering Laboratories, Inc. Shaft mounted monitor for rotating machinery
US9800055B2 (en) 2016-01-21 2017-10-24 Schweitzer Engineering Laboratories, Inc. Synchronization of generators using a common time reference
US9906041B2 (en) 2016-03-16 2018-02-27 Schweitzer Engineering Laboratories, Inc. Decentralized generator control
US9912158B2 (en) 2016-03-16 2018-03-06 Schweitzer Engineering Laboratories, Inc. Decentralized generator control
WO2017196374A1 (en) * 2016-05-13 2017-11-16 Hitachi, Ltd Similarity detection of abnormal waveforms using pmu measurement
US10135250B2 (en) 2016-05-25 2018-11-20 Schweitzer Engineering Laboratories, Inc. Inertia compensated load tracking in electrical power systems
WO2017218558A1 (en) * 2016-06-14 2017-12-21 Schweitzer Engineering Laboratories, Inc. Phase selection for traveling wave fault detection systems
US10523150B2 (en) 2016-09-15 2019-12-31 Schweitzer Engineering Laboratories, Inc. Systems and methods for motor slip calculation using shaft-mounted sensors
US10644493B2 (en) 2017-05-01 2020-05-05 Schweitzer Engineering Laboratories, Inc. Power system disturbance detection using power and frequency
US10312694B2 (en) 2017-06-23 2019-06-04 Schweitzer Engineering Laboratories, Inc. Mode-based output synchronization using relays and a common time source
US10664553B2 (en) 2017-10-06 2020-05-26 Schweitzer Engineering Laboratories, Inc. Generating a representation of high-frequency signal data from an electric power delivery system
US10476268B2 (en) 2018-02-09 2019-11-12 Schweitzer Engineering Laboratories, Inc. Optimized decoupling and load shedding
US10381835B1 (en) 2018-02-09 2019-08-13 Schweitzer Engineering Laboratories, Inc. Electric power generator selection, shedding, and runback for power system stability
US11280834B2 (en) 2018-08-30 2022-03-22 Schweitzer Engineering Laboratories, Inc. Detection of low-energy events in an electric power system
US11196369B2 (en) 2018-08-31 2021-12-07 Schweitzer Engineering Laboratories, Inc. Generator loss-of-field protection
FI3757581T3 (fi) 2019-06-28 2023-12-15 Hitachi Energy Ltd Älykkään elektronisen laitteen toiminta tehonheilahtelun aikana
EP3764499B1 (en) * 2019-07-09 2024-07-24 Hitachi Energy Ltd Symmetrical fault detection during power swing condition with single ended measurements
EP3859926A1 (en) * 2020-01-31 2021-08-04 ABB Power Grids Switzerland AG Time synchronization between ieds of different substations
US11035891B1 (en) 2020-03-06 2021-06-15 Schweitzer Engineering Laboratories, Inc. Electric power system voltage monitoring and control with energy packets
US20220137112A1 (en) * 2020-10-30 2022-05-05 University Of Tennessee Research Foundation Alignment of synchronized phase angle measurements with presence of practical time shift
US11899517B2 (en) 2021-08-26 2024-02-13 Schweitzer Engineering Laboratories, Inc. Event analysis and display
EP4434130A1 (en) * 2021-11-18 2024-09-25 Abb Schweiz Ag Method of determining fault of power system

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829298A (en) 1983-04-13 1989-05-09 Fernandes Roosevelt A Electrical power line monitoring systems, including harmonic value measurements and relaying communications
DE3540212A1 (de) 1985-11-13 1987-05-14 Standard Elektrik Lorenz Ag Einrichtung zur richtungsbestimmung
US4821294A (en) 1987-07-08 1989-04-11 California Institute Of Technology Digital signal processor and processing method for GPS receivers
US5006846A (en) 1987-11-12 1991-04-09 Granville J Michael Power transmission line monitoring system
US5224011A (en) 1991-04-19 1993-06-29 Gas Research Institute Multifunction protective relay system
US5369356A (en) 1991-08-30 1994-11-29 Siemens Energy & Automation, Inc. Distributed current and voltage sampling function for an electric power monitoring unit
CA2106357A1 (en) 1993-07-07 1995-01-08 Murty V. V. S. Yalla Method for implementing selectable protective relay functions
US5446682A (en) 1994-03-21 1995-08-29 Square D Company System for calibrating a line isolation monitor
US6694270B2 (en) 1994-12-30 2004-02-17 Power Measurement Ltd. Phasor transducer apparatus and system for protection, control, and management of electricity distribution systems
US6944555B2 (en) 1994-12-30 2005-09-13 Power Measurement Ltd. Communications architecture for intelligent electronic devices
US6446682B1 (en) 1995-06-06 2002-09-10 James P. Viken Auto-loading fluid exchanger and method of use
US5736961A (en) 1995-10-06 1998-04-07 Novatel, Inc. Dual Frequency global positioning system
US5731943A (en) 1996-01-04 1998-03-24 Schweitzer Engineering Laboratories, Inc. Protective relay having out-of-step logic capability
US6252863B1 (en) 1996-04-09 2001-06-26 Trimble Navigation Limited Multipath compensation for pseudorange signals
US5963582A (en) 1996-05-24 1999-10-05 Leica Geosystems Inc. Mitigation of multipath effects in global positioning system receivers
US5809045A (en) 1996-09-13 1998-09-15 General Electric Company Digital current differential system
SE507227C2 (sv) 1996-09-16 1998-04-27 Ericsson Telefon Ab L M Metod och anordning för synkronisering av tidsstämpling
US20030212512A1 (en) 1997-02-12 2003-11-13 Power Measurement Ltd. Apparatus and system for protection, control, and management of electricity distribution systems over a network
US5995911A (en) 1997-02-12 1999-11-30 Power Measurement Ltd. Digital sensor apparatus and system for protection, control, and management of electricity distribution systems
JPH10336883A (ja) * 1997-04-02 1998-12-18 Toshiba Corp 電力系統の脱調検出方法および脱調検出装置
US6370569B1 (en) 1997-11-14 2002-04-09 National Instruments Corporation Data socket system and method for accessing data sources using URLs
US6075987A (en) 1998-02-27 2000-06-13 Ericsson Inc. Stand alone global positioning system (GPS) and method with high sensitivity
US6141196A (en) 1998-03-02 2000-10-31 General Electric Company Method and apparatus for compensation of phasor estimations
JP3352411B2 (ja) 1998-03-05 2002-12-03 株式会社東芝 制御システム、電力系統保護制御システムおよびプログラムを記憶した記憶媒体
US6127970A (en) 1998-09-25 2000-10-03 Lin; Ching-Fang Coupled real time emulation method for positioning and location system
US6313934B1 (en) 1999-01-08 2001-11-06 Agilent Technologies, Inc. Chromatic dispersion measurement scheme for optical systems having remote access points
US6429785B1 (en) 1999-01-08 2002-08-06 Siemens Power Transmission & Distribution Inc. Revenue meter having precision time clock
US6121886A (en) 1999-05-18 2000-09-19 General Electric Company Method for predicting fault conditions in an intelligent electronic device
US6615147B1 (en) 1999-08-09 2003-09-02 Power Measurement Ltd. Revenue meter with power quality features
DE60041385D1 (de) 2000-03-10 2009-03-05 Abb Schweiz Ag Verfahren und Vorrichtung zur Stabilitätsbewertung eines elektrischen Energieversorgungsnetzes
US6735535B1 (en) 2000-05-05 2004-05-11 Electro Industries/Gauge Tech. Power meter having an auto-calibration feature and data acquisition capabilities
SE517714C2 (sv) 2000-05-31 2002-07-09 Abb Ab Nätvärnssystem för skydd av ett totalt elkraftsystems integritet mot svagt dämpade effektsvängningar, elkraftsystem innefattande ett nätvärn, systemskyddssystemförfarande, systemskyddsterminal, datorprogramprodukt samt datorläsbart medium
US6735523B1 (en) 2000-06-19 2004-05-11 American Gnc Corp. Process and system of coupled real-time GPS/IMU simulation with differential GPS
US6815932B2 (en) 2000-10-12 2004-11-09 Capstone Turbine Corporation Detection of islanded behavior and anti-islanding protection of a generator in grid-connected mode
US6518767B1 (en) 2000-10-19 2003-02-11 Schweitzer Engineering Laboratories, Inc. Line differential protection system for a power transmission line
US6671654B1 (en) 2000-11-28 2003-12-30 Power Measurement Ltd. Apparatus and method for measuring and reporting the reliability of a power distribution system
ATE271274T1 (de) 2000-12-01 2004-07-15 Abb Schweiz Ag Verfahren und vorrichtung zur stabilitätsauswertung eines energieübertragungssystem
CA2407943A1 (en) 2001-02-05 2002-08-15 Clark Cohen Low cost system and method for making dual band gps measurements
JP3907998B2 (ja) 2001-02-09 2007-04-18 株式会社東芝 変電機器保護制御システム
US6853978B2 (en) 2001-02-23 2005-02-08 Power Measurement Ltd. System and method for manufacturing and configuring intelligent electronic devices to order
US6950851B2 (en) 2001-04-05 2005-09-27 Osburn Iii Douglas C System and method for communication for a supervisory control and data acquisition (SCADA) system
EP1261096B1 (en) 2001-05-21 2011-04-06 ABB Research Ltd. Stability prediction for an electric power network
US6603298B2 (en) 2001-07-06 2003-08-05 Schweitzer Engineering Laboratories, Inc. System for estimating the frequency of the power signal on a power transmission line
US6859742B2 (en) 2001-07-12 2005-02-22 Landis+Gyr Inc. Redundant precision time keeping for utility meters
US6745175B2 (en) 2001-08-02 2004-06-01 National Instruments Corporation System and method for a shared memory architecture for high speed logging and trending
DE60119555T2 (de) * 2001-12-21 2007-03-08 Abb Schweiz Ag Ermittlung der Betriebsgrenzwerte in einem Energieverteilungsnetz
DE60108966D1 (de) 2001-12-21 2005-03-24 Abb Research Ltd Zustandsbestimmung für ein Energieverteilungsnetz
US6642700B2 (en) 2002-03-26 2003-11-04 Avistar, Inc. System, method, field unit, reference unit and computer program product for phase tracking of electrical conductors
US6662124B2 (en) * 2002-04-17 2003-12-09 Schweitzer Engineering Laboratories, Inc. Protective relay with synchronized phasor measurement capability for use in electric power systems
US6983393B2 (en) 2002-12-11 2006-01-03 National Instruments Corporation Deterministically handling asynchronous events in a time triggered system
US6934654B2 (en) 2003-03-21 2005-08-23 Schweitzer Engineering Laboratories, Inc. System and method for exact compensation of fundamental phasors
US6833711B1 (en) 2003-08-01 2004-12-21 Schweitzer Engineering Laboratories, Inc. Protective relay for powers systems having dependable out-of-step blocking capability
JP4038484B2 (ja) 2004-01-13 2008-01-23 三菱電機株式会社 同期フェーザ測定装置
CA2476030A1 (en) 2004-06-09 2005-12-09 Wilsun Xu A power signaling based technique for detecting islanding conditions in electric power distribution systems
US7552367B2 (en) 2004-08-03 2009-06-23 General Electric Company Fault recording and sequence of events recording device capable of recording communication-based signals related to electrical power systems
US7457088B2 (en) * 2004-09-29 2008-11-25 Schweitzer Engineering Laboratories, Inc. Systems and methods for protection of electrical networks
US20060152866A1 (en) 2005-01-13 2006-07-13 Gabriel Benmouyal System for maintaining fault-type selection during an out-of-step condition
US20060259255A1 (en) 2005-04-05 2006-11-16 Anderson James C Method of visualizing power system quantities using a configurable software visualization tool
US20060224336A1 (en) * 2005-04-05 2006-10-05 Charles Petras System and method for transmitting power system data over a wide area network
US7444248B2 (en) 2005-04-29 2008-10-28 General Electric Company System and method for synchronized phasor measurement
US7480580B2 (en) 2005-10-18 2009-01-20 Schweitzer Engineering Laboratories, Inc. Apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical system

Also Published As

Publication number Publication date
US20090089608A1 (en) 2009-04-02
US7930117B2 (en) 2011-04-19
CA2700973A1 (en) 2009-04-02
CA2700973C (en) 2014-05-13
WO2009042966A1 (en) 2009-04-02

Similar Documents

Publication Publication Date Title
MX2010002165A (es) Sistemas y metodos para deteccion de variacion de energia y perdida de sincronia utilizando datos marcados en tiempo.
MX2010002163A (es) Comparadores de amplitud y de fase para proteccion de linea.
WO2009075985A3 (en) Apparatuses and methods to connect power sources to an electric power system
WO2012044354A3 (en) Systems and methods for testing the standoff capability of an overhead power transmission line
AU2009293080A8 (en) Protective device with metering and oscillography
WO2014130322A3 (en) System and method of detecting a plug-in type based on impedance comparison
EP4220594A3 (en) Theft detection and prevention in a power generation system
WO2006093733A3 (en) Methods and apparatus for monitoring electrical contacts
EP2579446A3 (en) Motor current detection apparatus, motor controller, and electric power tool
DE602008006047D1 (de) Magnetische isolierung eines steuerkreises einer stromquellenvorrichtung
WO2011156394A3 (en) Systems and methods for classifying power line events
BRPI0418802A (pt) método e aparelho para detectar a fase de fiação de uma tensão de fase desconhecida arbitrária em relação a uma tensão de fase de referência
MX2012008044A (es) Aparato y metodo para identificar fase y terminal para dispositivos de sistemas de energia.
EP2351522A4 (en) SYSTEMS AND METHODS FOR DETECTING AND USING AN ELECTRICAL COCHLEAR RESPONSE (ECR) FOR EVALUATING THE OPERATION OF A COCHLEAR STIMULATION SYSTEM
WO2011113029A3 (en) Detection and protection of devices within a wireless power system
WO2012048102A3 (en) Systems and methods for magnetically charging and discharging a member configured for medical use
WO2008126240A1 (ja) 同期フェーザ測定装置及びこれを用いた母線間位相角差測定装置
WO2012015838A3 (en) Low power detection of wireless power devices
NZ592756A (en) System for determinng the phase of electricity provided over a power grid and a phase detection device
WO2012060883A3 (en) Power grid failure prediction and detection
WO2010009000A3 (en) Strip connectors for measurement devices
WO2012075305A3 (en) Dual-comparator restricted earth fault protection
EP2498063A3 (en) Rotation angle detection device
WO2012067747A3 (en) Data alignment in large scale electrical system applications
EP2395619A3 (en) SSPC with dual fault detectors

Legal Events

Date Code Title Description
FG Grant or registration