| Issue |
E3S Web Conf.
Volume 104, 2019
International Conference “Energy Efficiency and Energy Saving in Technical Systems” (EEESTS-2019)
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 12 | |
| Section | Integrated Measurement Information Processing Devices | |
| DOI | https://doi.org/10.1051/e3sconf/201910402002 | |
| Published online | 21 June 2019 | |
Energy efficiency digital filter design for spectral analysis of primary electrical values
1
Faculty of Technical Sciences in Cacak, University of Kragujevac, Sv. Save 65, Cacak, Serbia
2
Faculty of Natural Sciences and Mathematics, University of Pristina, K. Mitrovica, Serbia
3
Don State Technical University, Shevchenko 147, Shakhty 346500, Rostov region, Russia
* Corresponding author: makovserg@yandex.ru
In this paper, the knowledge based design of digital filter for analysis of spectral components is illustrated. The primary electrical values are analyzed observing of the faults which appear by earth short circuits. The main point of view is negative sequence component and higher harmonics in distributed electrical networks. Method of symbolic processing is used to design digital filter that realizes negative sequence component. Designing of digital filter is based on active analog filter in the three-phase electrical networks using bilinear transformation. We use methods of computer algebra tools (Mathematica) to simulate processes in network. Also, we automatically derive properties of digital filter, and the knowledge embedded in symbolic expressions was used to simulate an example system. The characteristics of digital filter are given and annotated using different sampling frequency and entire cases of earth short circuits.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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