| Issue |
E3S Web Conf.
Volume 139, 2019
Rudenko International Conference “Methodological problems in reliability study of large energy systems” (RSES 2019)
|
|
|---|---|---|
| Article Number | 01048 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/e3sconf/201913901048 | |
| Published online | 16 December 2019 | |
Adaptive multivariable relay protection of reconfigurable distribution networks
1 R. E. Alekseev Nizhnii Novgorod State Technical University, 603950, Minin Str. 24, Nizhnii Novgorod, Russia
2 JSC NIPOM, advanced development department, 603140, Lenin Ave., 20, Nizhnii Novgorod, Russia
* Corresponding author: petrov85@inbox.ru
Version of relay protection construction of relative selectivity is proposed, which allows increasing its technical perfection and reliability in microgrids with distributed generation sources. This is done by increasing the dimension of the measurement space along arbitrary axes, introducing new methods of recognizing emergency modes, as well as automating the selection of response parameters. Hardware implementation of protection is described. Recommendations for calculating the settings of multidimensional protection and an example of calculation are given. Protection coordination is carried out by using graphical-analytical methods in automatic mode. Automation of the calculation, elimination of the human factor will make it possible to apply the method for adaptation of protection in the conditions of dynamic change of microgrid topology.
© The Authors, published by EDP Sciences, 2019
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