Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG. The extreme case is coordination loss between primary and backup relays. The directional overcurrent relay (DOCR) which is the most implemented protective device in the electrical network also suffers performance degradation in presence of DG. Therefore, this paper proposes the mitigation of DG impact on DOCR coordination employing adaptive protection scheme (APS) using differential evolution algorithm (DE) while improving overall sensitivity of relays . The impacts of DG prior and after the application of APS are presented based on interconnected 6 bus and IEEE 14 bus system. As a consequence, general sensitivity improvement and mitigation scheme is proposed.

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids / Shih, Meng Yen; Conde, Arturo; Leonowicz, ZBIGNIEW MARIA; Martirano, Luigi. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - STAMPA. - 53:6(2017), pp. 5217-5228. [10.1109/TIA.2017.2717880]

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids

LEONOWICZ, ZBIGNIEW MARIA;MARTIRANO, Luigi
2017

Abstract

Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG. The extreme case is coordination loss between primary and backup relays. The directional overcurrent relay (DOCR) which is the most implemented protective device in the electrical network also suffers performance degradation in presence of DG. Therefore, this paper proposes the mitigation of DG impact on DOCR coordination employing adaptive protection scheme (APS) using differential evolution algorithm (DE) while improving overall sensitivity of relays . The impacts of DG prior and after the application of APS are presented based on interconnected 6 bus and IEEE 14 bus system. As a consequence, general sensitivity improvement and mitigation scheme is proposed.
2017
adaptive protection scheme; differential evolution algorithm; directional overcurrent relay coordination; distributed generation; smart grid; control and systems engineering; industrial and manufacturing engineering; electrical and electronic engineering
01 Pubblicazione su rivista::01a Articolo in rivista
An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids / Shih, Meng Yen; Conde, Arturo; Leonowicz, ZBIGNIEW MARIA; Martirano, Luigi. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - STAMPA. - 53:6(2017), pp. 5217-5228. [10.1109/TIA.2017.2717880]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/987101
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