Adaptive Instantaneous Overcurrent Relay Settings in Real Brazilian System with Distributed Generation
| Autor: | B. A. de Souza, F. C. Souza Junior, Flavio Bezerra Costa, Huilman S. Sanca |
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| Rok vydání: | 2016 |
| Předmět: |
Relay setting
Computer science business.industry 020209 energy 02 engineering and technology Overcurrent relay Distribution systems Adaptive protection Distributed generation 0202 electrical engineering electronic engineering information engineering Electronic engineering Frequency estimation Overcurrent protection Instantaneous overcurrent reach business |
| Zdroj: | Repositório Institucional da UFRN Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
| ISSN: | 2229-5518 |
| Popis: | Recently a large number of small units of electric generation are being installed in the electric power distribution system in Brazil, due to the governmental investments on renewable energy. Modifications in the settings of the protection system may be caused by the high penetration of distributed generation (DG) in the electric system and parameterize the protection system for this new setting is necessary. However, this task is being made with much difficulty in many companies which use the conventional methods. In this paper, an adaptive protection scheme is proposed to determine instantaneous overcurrent relay setting. Frequency estimation was used to determine load and power supply changes in a real Brazilian system, and these modifications on the system were used to the adaptive protection block to determine the update on relays settings. The application of frequency estimation methods to adaptive overcurrent protection presented good results and improvements on the protection of the electric system |
| Databáze: | OpenAIRE |
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