Assessment of Dynamic Measurement Intervals for State Estimation in Future Distribution Systems

S.S.B. Sirige, Niels Blaauwbroek, José L. Rueda, P. Palensky, A. Lekic

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The ongoing energy transition introduces new load and generation units like photovoltaic generation in the medium-voltage systems network. These generation units increase the variance of the power injections, resulting in increased stochasticity of the power flow values. For confident assessment of the system’s operating condition, a measurement scheme is essential for accurate state estimation at every minute of the day. This paper presents a performance assessment of the Weighted Least Square (WLS) distribution system state estimation algorithm with respect to the measurement intervals, and proposes a measurement scheme considering the measurement locations and intervals that satisfy a required error limit. The scheme is tested on a synthetic test model of a Dutch MV network, which takes into account projected (year 2040) and highly stochastic power flow profiles. Numerical results show that the proposed algorithm for the measurement scheme determination successfully satisfies the chosen error limit.
Original languageEnglish
Title of host publication2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
Number of pages6
ISBN (Electronic)978-1-6654-3597-0
DOIs
Publication statusPublished - 2021
Event2021 IEEE Madrid PowerTech - Virtual/online event
Duration: 28 Jun 20212 Jul 2021

Publication series

Name2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings

Conference

Conference2021 IEEE Madrid PowerTech
Abbreviated titlePowerTech 2021
Period28/06/212/07/21

Keywords

  • Active distribution systems
  • measurement intervals
  • state estimation algorithms
  • stochastic power flows

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