The integrated calibration of synchronized phasor measurement data in power transmission systems

Qing Zhang, Vijay Vittal, Gerald T. Heydt, Naim Logic, Steve Sturgill

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

This paper utilizes several mathematical techniques based on the method of minimizing least squares to integrate synchronized measurements and power system operations planning data. The intent is to use several measurements and system data to enhance the overall accuracy of measurements in a power transmission system, thus integrating the calibration process. The techniques used include a least squares estimator, the Newton Raphson method to attain low discrepancies between measurements, and the least squares method to match measurements made simultaneously (e.g., obtained from phasor measurement units). A novel process is proposed which is applicable in real-time synchronized measurements calibration.

Original languageEnglish (US)
Article number6019041
Pages (from-to)2573-2581
Number of pages9
JournalIEEE Transactions on Power Delivery
Volume26
Issue number4
DOIs
StatePublished - Oct 1 2011

Keywords

  • Calibration
  • instrumentation
  • phasor measurement units (PMUs)
  • power system measurements

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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