Coordinated Control of Distributed Three-and Single-phase Inverters Connected to Three-Phase Three-Wire Microgrids
Brandao, Danilo Iglesias; Savoi, Lucas; Alonso, Augusto Matheus Dos Santos; Liberado, Eduardo Verri; Reis, Geovane; Marafao, Fernando Pinhabel
Journal article, Peer reviewed
Accepted version
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Åpne
Permanent lenke
http://hdl.handle.net/11250/2611297Utgivelsesdato
2019Metadata
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- Institutt for elkraftteknikk [2474]
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Originalversjon
10.1109/JESTPE.2019.2931122Sammendrag
This paper explores the coordinated strategy named Power-Based Control to properly coordinate grid-tied single-and three-phase distributed energy resources in three-phase three-wire microgrids. By means of a narrowband, low data rate communication, such strategy accommodates current-and voltage-controlled distributed inverters providing proportional sharing of active, reactive and unbalance (negative-sequence) power terms, also offering dispatchable power flow and high power quality at the microgrid’s point of common coupling. Regarding the current unbalance compensation, a particular case considering two distributed single-phase inverters is discussed through mathematical analysis in terms of balanced and unbalanced power terms, and experimental results on which the Power-Based Control is applied to demonstrate that this strategy corroborates with Steinmetz principle. Finally, the complete strategy is evaluated in simulation considering the model of a real urban power distribution grid under typical operational conditions.