Estimation of phasors of power grid voltages and currents based on discrete samples of instantaneous values

Authors

  • Sviatoslav Vasylets National University of Water and Environmental Engineering
  • Vladyslav Hlushchuk National University of Water and Environmental Engineering https://orcid.org/0009-0005-5314-669X

DOI:

https://doi.org/10.31713/MCIT.2025.021

Keywords:

power grid, phasor, instantaneous values, discrete samples, projections

Abstract

A method for estimating the real and imaginary parts of the phasor of voltages and currents of the power grid based on discrete readings of instantaneous values ​​is proposed. The method involves determining the projections on the complex axis of rotating phasors, which are calculated based on the discrete values ​​of signals corresponding to the instantaneous values ​​of phase voltages and currents. Rotating vectors are slowed down, which simplifies the analysis of phase shifts between them. The application of the proposed method will allow to increase the accuracy of detecting emergency modes, the reliability of protective shutdown, and the efficiency of electricity metering in a digital substation.

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Published

2025-11-06

How to Cite

Vasylets, S., & Hlushchuk, V. (2025). Estimation of phasors of power grid voltages and currents based on discrete samples of instantaneous values. Modeling, Control and Information Technologies, (8), 76–77. https://doi.org/10.31713/MCIT.2025.021

Issue

No. 8 (2025): Modeling, control and information technologies

Section

Power engineering and renewable energy sources

License

Copyright (c) 2025 Modeling, Control and Information Technologies: Proceedings of International scientific and practical conference

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

All materials are distributed under the terms of the Creative Commons Attribution 4.0 International License, which allows others to distribute the work with attribution to the authorship of this work and the first publication in this journal.

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