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Control of Smart Inverters with Automated Decisions in Microgrid

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Abstract

In this article, a smart inverter model that executes ancillary services with automated decisions is presented, such as power sharing and voltage and frequency stabilization, compensation of unbalance voltage, mitigation of harmonic content, and the balance of generation and demand. The droop control was utilized for power-sharing between the distributed generations; the mitigation of negative-sequence voltage is used for unbalanced voltage compensation, and finally, a feed-forward current is adopted for harmonic compensation. Therefore, the smart inverter was controlled through a supervisory system, identifying which ancillary function to activate at certain times. Results show the successful operation of the system and can be used as validation of the proposed control strategies, including the automated decisions in the microgrid.

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Acknowledgements

The authors would like to thank the Federal University of Juiz de Fora, Electrical Engineering Graduate Program, Brazilian National Council for Scientific and Technological Development CNPq (Project: 459651/2014-5), Coordination for the Improvement of Higher Education Personnel CAPES, Fundação de Amparo à Pesquisa de Minas Gerais FAPEMIG (Project: APQ-02254-14) and INERGE. This work was conducted within the STandUP for Energy strategic research framework.

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Author notes

  1. Juan de Santiago, Pedro M. de Almeida and Janaína G. Oliveira have equally contributed to this work.

Authors and Affiliations

  1. Department of Electrical Engineering, Federal University of Juiz de Fora, Juiz de Fora, 36036-900, Brazil

    Dalmo C. Silva Júnior, Pedro M. de Almeida & Janaína G. Oliveira

  2. Division of Electricity, Uppsala University, 752 36, Uppsala, Sweden

    Juan de Santiago & Janaína G. Oliveira

  3. Faculty of Electrical Engineering, Academia University Center, Juiz de Fora, 36016-000, Brazil

    Dalmo C. Silva Júnior

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  1. Dalmo C. Silva Júnior
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Correspondence to Dalmo C. Silva Júnior.

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Silva Júnior, D.C., de Santiago, J., de Almeida, P.M. et al. Control of Smart Inverters with Automated Decisions in Microgrid. J Control Autom Electr Syst 34, 1028–1042 (2023). https://doi.org/10.1007/s40313-023-01028-y

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  • DOI: https://doi.org/10.1007/s40313-023-01028-y

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