Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers

Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers

Abstract A novel distributed secondary layer control strategy based on average consensus and fractional‐order proportional‐integral (FOPI) local controllers is proposed for the regulation of the bus voltages and energy level balancing of the energy storage systems (ESSs) in DC microgrids. The distri...

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Autores principales: Mehdi Doostinia, Mohammad T. H. Beheshti, Seyed A. Alavi, Josep M. Guerrero
Formato: article
Lenguaje:EN
Publicado: Wiley 2021
Materias:
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Acceso en línea:https://doaj.org/article/a83a973d83654b34af851a7c5b83e09b
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spelling oai:doaj.org-article:a83a973d83654b34af851a7c5b83e09b2021-11-13T03:16:47ZDistributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers2515-294710.1049/stg2.12038https://doaj.org/article/a83a973d83654b34af851a7c5b83e09b2021-12-01T00:00:00Zhttps://doi.org/10.1049/stg2.12038https://doaj.org/toc/2515-2947Abstract A novel distributed secondary layer control strategy based on average consensus and fractional‐order proportional‐integral (FOPI) local controllers is proposed for the regulation of the bus voltages and energy level balancing of the energy storage systems (ESSs) in DC microgrids. The distributed consensus protocol works based on an undirected sparse communication network. Fractional‐order local controllers increase the degree of freedom in the tuning of closed‐loop controllers, which is required for DC microgrids with high order dynamics. Therefore, here, FOPI local controllers are proposed for enhanced energy balancing of ESSs and improved regulation of the bus voltages across the microgrid. The proposed control strategy operates in both islanded and grid‐connected modes of a DC microgrid. In both modes, the average voltage of the microgrid converges to the microgrid desired reference voltage. The charging/discharging of ESSs is controlled independent of the microgrid operating mode to maintain a balanced energy level. The performance of the proposed distributed control strategy is validated in a 38‐ V DC microgrid case study, simulated by Simulink real‐time desktop, consisting of 10 buses and a photovoltaic renewable energy source.Mehdi DoostiniaMohammad T. H. BeheshtiSeyed A. AlaviJosep M. GuerreroWileyarticleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIET Smart Grid, Vol 4, Iss 6, Pp 549-560 (2021)
institution DOAJ
collection DOAJ
language EN
topic Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Mehdi Doostinia
Mohammad T. H. Beheshti
Seyed A. Alavi
Josep M. Guerrero
Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
description Abstract A novel distributed secondary layer control strategy based on average consensus and fractional‐order proportional‐integral (FOPI) local controllers is proposed for the regulation of the bus voltages and energy level balancing of the energy storage systems (ESSs) in DC microgrids. The distributed consensus protocol works based on an undirected sparse communication network. Fractional‐order local controllers increase the degree of freedom in the tuning of closed‐loop controllers, which is required for DC microgrids with high order dynamics. Therefore, here, FOPI local controllers are proposed for enhanced energy balancing of ESSs and improved regulation of the bus voltages across the microgrid. The proposed control strategy operates in both islanded and grid‐connected modes of a DC microgrid. In both modes, the average voltage of the microgrid converges to the microgrid desired reference voltage. The charging/discharging of ESSs is controlled independent of the microgrid operating mode to maintain a balanced energy level. The performance of the proposed distributed control strategy is validated in a 38‐ V DC microgrid case study, simulated by Simulink real‐time desktop, consisting of 10 buses and a photovoltaic renewable energy source.
format article
author Mehdi Doostinia
Mohammad T. H. Beheshti
Seyed A. Alavi
Josep M. Guerrero
author_facet Mehdi Doostinia
Mohammad T. H. Beheshti
Seyed A. Alavi
Josep M. Guerrero
author_sort Mehdi Doostinia
title Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
title_short Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
title_full Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
title_fullStr Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
title_full_unstemmed Distributed control strategy for DC microgrids based on average consensus and fractional‐order local controllers
title_sort distributed control strategy for dc microgrids based on average consensus and fractional‐order local controllers
publisher Wiley
publishDate 2021
url https://doaj.org/article/a83a973d83654b34af851a7c5b83e09b
work_keys_str_mv AT mehdidoostinia distributedcontrolstrategyfordcmicrogridsbasedonaverageconsensusandfractionalorderlocalcontrollers
AT mohammadthbeheshti distributedcontrolstrategyfordcmicrogridsbasedonaverageconsensusandfractionalorderlocalcontrollers
AT seyedaalavi distributedcontrolstrategyfordcmicrogridsbasedonaverageconsensusandfractionalorderlocalcontrollers
AT josepmguerrero distributedcontrolstrategyfordcmicrogridsbasedonaverageconsensusandfractionalorderlocalcontrollers
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