E3S Web Conf.
Volume 139, 2019Rudenko International Conference “Methodological problems in reliability study of large energy systems” (RSES 2019)
|Number of page(s)||5|
|Published online||16 December 2019|
Development of the logical part of the intellectual multi-parameter relay protection
Department of Electric Power Engineering, Power Supply and Power Electronics Nizhny Novgorod State Technical University n.a. R.E. Alekseev 603950, Nizhny Novgorod, Minin St., 24, Russia
* Corresponding author: email@example.com
The issues of increasing the sensitivity and reliability of multi-parameter relay protection by sharing more than one information feature (current module, voltage module and phase, active and reactive power) are considered. In this case, the response parameters of individual one-dimensional measuring fault detectors based on the accumulation of statistical data during simulation in the Matlab / Similink software package are determined. A method for combining the signals of one-dimensional measuring fault detectors to increase the sensitivity of protection is proposed. The reliability of the organization of the logical part of multi-parameter relay protection was estimated using the theory of Markov processes, the principles of “2 out of 3” and “1 out of 2”.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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