WO2007047861A8 - Apparatus and method for estimating synchronized phasors at predetermined times - Google Patents

Apparatus and method for estimating synchronized phasors at predetermined times

Info

Publication number
WO2007047861A8
WO2007047861A8 PCT/US2006/040923 US2006040923W WO2007047861A8 WO 2007047861 A8 WO2007047861 A8 WO 2007047861A8 US 2006040923 W US2006040923 W US 2006040923W WO 2007047861 A8 WO2007047861 A8 WO 2007047861A8
Authority
WO
WIPO (PCT)
Prior art keywords
power system
synchronized phasors
signal
predetermined times
referenced
Prior art date
Application number
PCT/US2006/040923
Other languages
French (fr)
Other versions
WO2007047861A3 (en
WO2007047861A2 (en
Inventor
Gregary Zweigle
Armando Gusman-Casillas
Luther Anderson
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
Priority to BRPI0617502-3A priority Critical patent/BRPI0617502A2/en
Priority to CA2624604A priority patent/CA2624604C/en
Publication of WO2007047861A2 publication Critical patent/WO2007047861A2/en
Publication of WO2007047861A3 publication Critical patent/WO2007047861A3/en
Publication of WO2007047861A8 publication Critical patent/WO2007047861A8/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2513Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Smart grids as climate change mitigation technology in the energy generation sector
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/22Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units

Abstract

An apparatus and method estimates a plurality of synchronized phasors at predetermined times referenced to an absolute time standard in an electrical power system. The method includes acquiring and determining a frequency of a power system signal, sampling the power system signal at a sampling interval rate based on a frequency of the power system signal to form signal samples, and generating a plurality of acquisition time values based on an occurrence of each of the signal samples at a corresponding plurality of different times referenced to the absolute time standard. The method further includes adjusting a phasor of each of the signal samples based on a time difference between a corresponding selected acquisition time value and a predetermined time referenced to an absolute time standard to form the plurality of synchronized phasors.
PCT/US2006/040923 2005-10-18 2006-10-18 Apparatus and method for estimating synchronized phasors at predetermined times WO2007047861A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0617502-3A BRPI0617502A2 (en) 2005-10-18 2006-10-18 apparatus and method for estimating a plurality of synchronized phasors at predetermined times referenced to an absolute time pattern in an electrical power system
CA2624604A CA2624604C (en) 2005-10-18 2006-10-18 An apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US72776405P 2005-10-18 2005-10-18
US60/727,764 2005-10-18
US11/504,788 US7480580B2 (en) 2005-10-18 2006-08-15 Apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical system
US11/504,788 2006-08-15

Publications (3)

Publication Number Publication Date
WO2007047861A2 WO2007047861A2 (en) 2007-04-26
WO2007047861A3 WO2007047861A3 (en) 2007-09-20
WO2007047861A8 true WO2007047861A8 (en) 2007-11-01

Family

ID=37947919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/040923 WO2007047861A2 (en) 2005-10-18 2006-10-18 Apparatus and method for estimating synchronized phasors at predetermined times

Country Status (4)

Country Link
US (2) US7480580B2 (en)
BR (1) BRPI0617502A2 (en)
CA (1) CA2624604C (en)
WO (1) WO2007047861A2 (en)

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Also Published As

Publication number Publication date
US20070086134A1 (en) 2007-04-19
US7480580B2 (en) 2009-01-20
WO2007047861A3 (en) 2007-09-20
BRPI0617502A2 (en) 2011-07-26
CA2624604C (en) 2012-10-30
US20080281540A1 (en) 2008-11-13
CA2624604A1 (en) 2007-04-26
WO2007047861A2 (en) 2007-04-26

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