Dynamic line parameter estimation using Synchrophasor Measurements

Anton C.Sameepa Hettiarachchige-Don, Visvakumar Aravinthan, Ward Jewell, Shawn Westervelt

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper proposes a novel methodology for the calculation and estimation of transmission line impedance with the use of real time data from synchrophasor measurement units. Current synchrophasor standards do not provide impedance data and must therefore be calculated. The algorithms used in this paper include impedance calculation, outlier detection and elimination as well as denoising using regularized least square estimation. The proposed methodology operates using a small sample size and can therefore be applied in real time to provide operators with instantaneous impedance values from transmission lines. The paper also investigates how changing several methodology parameters can affect the accuracy of the output obtained. The overall methodology as well as these parameters have been tested using real synchrophasor data from an American utility provider.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Information and Automation for Sustainability
Subtitle of host publicationInteroperable Sustainable Smart Systems for Next Generation, ICIAfS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781509061327
ISBN (Print)9781509061334
Publication statusPublished - 15 Jun 2017
Event8th IEEE International Conference on Information and Automation for Sustainability, ICIAfS 2016 - Galle, Sri Lanka
Duration: 16 Dec 201619 Dec 2016

Publication series

NameIEEE ICIAfS Conference Series
ISSN (Electronic)2151-1810


Conference8th IEEE International Conference on Information and Automation for Sustainability, ICIAfS 2016
Country/TerritorySri Lanka


  • Elimination
  • Measurement
  • Monitoring
  • Outlier
  • PMU
  • Regularized Least Square
  • Sensors
  • Smart Grid
  • Supervisory Control and Data Acquisition
  • SynchroPhasor Measurement Units

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