Title:
DATA ALIGNMENT IN LARGE SCALE ELECTRICAL SYSTEM APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2012/067747
Kind Code:
A3
Abstract:
A method for automatically aligning measured power-related data in a power monitoring system to a common reference point. A conductor in a power delivery system is modeled according to an equivalent pi model of a transmission line that is characterized by model parameters. The conductor is monitored on both ends by a reference monitoring device and a second monitoring device. The voltage and current are measured in either the reference monitoring device or the second monitoring device and a phase shift offset between the voltages or currents at the two devices is calculated. The calculated phase shift offset corresponds to a temporal delay between events observed at the pair of devices, and calculating and storing the phase shift offset allows a power monitoring system controller to more accurately align data received from monitoring devices.
Inventors:
BICKEL JON A (US)
Application Number:
PCT/US2011/057071
Publication Date:
March 28, 2013
Filing Date:
October 20, 2011
Export Citation:
Assignee:
SCHNEIDER ELECTRIC USA INC (US)
BICKEL JON A (US)
BICKEL JON A (US)
International Classes:
H02J13/00
Foreign References:
| US20100111112A1 | 2010-05-06 | |||
| US20070005277A1 | 2007-01-04 |
Other References:
IZYKOWSKI J ET AL: "Accurate Location of Faults on Power Transmission Lines With Use of Two-End Unsynchronized Measurements", IEEE TRANSACTIONS ON POWER DELIVERY, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 21, no. 2, 1 April 2006 (2006-04-01), pages 627 - 633, XP007904680, ISSN: 0885-8977, DOI: 10.1109/TPWRD.2005.858778
DAMIR NOVOSEL ET AL: "UNSYNCHRONIZED TWO-TERMINAL FAULT LOCATION ESTIMATION", IEEE TRANSACTIONS ON POWER DELIVERY, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 11, no. 1, 1 January 1996 (1996-01-01), pages 130 - 138, XP011049074, ISSN: 0885-8977, DOI: 10.1109/61.484009
ANAND D M ET AL: "Using clock accuracy to guide model synthesis in distributed systems: An application in power grid control", PRECISION CLOCK SYNCHRONIZATION FOR MEASUREMENT CONTROL AND COMMUNICATION (ISPCS), 2010 INTERNATIONAL IEEE SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 27 September 2010 (2010-09-27), pages 7 - 12, XP031780844, ISBN: 978-1-4244-5978-0
DAMIR NOVOSEL ET AL: "UNSYNCHRONIZED TWO-TERMINAL FAULT LOCATION ESTIMATION", IEEE TRANSACTIONS ON POWER DELIVERY, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 11, no. 1, 1 January 1996 (1996-01-01), pages 130 - 138, XP011049074, ISSN: 0885-8977, DOI: 10.1109/61.484009
ANAND D M ET AL: "Using clock accuracy to guide model synthesis in distributed systems: An application in power grid control", PRECISION CLOCK SYNCHRONIZATION FOR MEASUREMENT CONTROL AND COMMUNICATION (ISPCS), 2010 INTERNATIONAL IEEE SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 27 September 2010 (2010-09-27), pages 7 - 12, XP031780844, ISBN: 978-1-4244-5978-0
Attorney, Agent or Firm:
SWINDELLS, Justin, D. et al. (300 S. Riverside Plaza 16th floo, Chicago Illinois, US)
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