Title:
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Connection and disconnection transients for micro-grids under unbalance load condition
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Author:
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Rocabert Delgado, Joan; Azevedo, Gustavo M.S.; Candela García, José Ignacio; Blaabjerg, Frede; Rodríguez Cortés, Pedro
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable |
Abstract:
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The recent grid integration of Distributed Energy Resources (DER) possibility the formation of
intentional islands in the case of a grid fault conditions. For such island formation is required an active
agent capable of governing the micro-grid connection state in a safe mode, especially in connection
and disconnection transients. This paper focuses on the design of a method oriented to carry out a
stable intentional disconnection, and later re-connection, of local grids from the main distribution grid
in an intentional way; also under unbalance load condition. Seamless transfer between grid-connected
and isolated mode has been achieved in an alpha-beta stationary reference frame with a frequency
based synchronization control loop. Simulation and experimental results are provided to verify the
proper performance of the proposed solution. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Circuits de potència -Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica -Distributed generation of electric power -Energia elèctrica -- Distribució |
Rights:
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Document type:
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Article - Submitted version Conference Object |
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