dc.contributorUniversidade Federal de Minas Gerais (UFMG)
dc.contributorFed Inst Minas Gerais
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorNorwegian Univ Sci & Technol
dc.date.accessioned2020-12-10T19:52:45Z
dc.date.accessioned2022-12-19T20:19:50Z
dc.date.available2020-12-10T19:52:45Z
dc.date.available2022-12-19T20:19:50Z
dc.date.created2020-12-10T19:52:45Z
dc.date.issued2020-03-01
dc.identifierIeee Transactions On Smart Grid. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 11, n. 2, p. 1239-1252, 2020.
dc.identifier1949-3053
dc.identifierhttp://hdl.handle.net/11449/196678
dc.identifier10.1109/TSG.2019.2933790
dc.identifierWOS:000519592100028
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5377315
dc.description.abstractThe presence of single-phase distributed generators unevenly injecting active power in three-phase microgrids may create undesired upstream current unbalance. Consequently, voltage asymmetry and even active power curtailment may occur in such networks with negative economic impact. Thus, this paper proposes an optimal multiobjective approach to regulate the active and reactive power delivered by distributed generators driven by a three-layer hierarchical control technique in low-voltage microgrids. This method does not require previous knowledge of network parameters. The multiobjective algorithm is implemented in the secondary level achieving optimal dispatch in terms of maximizing the active power generation, as well as minimizing the reactive power circulation and current unbalance. By the existence of a utility interface three-phase converter placed at the point-of-common-coupling, the proposed control can regulate the power circulating among the microgrid phases, and the microgrid structure can withstand grid-connected and islanded operating modes. The path for interphase power circulation through the DC-link of the utility interface allows the multiobjective algorithm to achieve better results in terms of generation and compensation compared to the system without utility interface. The proposed method is assessed herein by computational simulations in a three-phase four-wire microgrid under realistic operational conditions.
dc.languageeng
dc.publisherIeee-inst Electrical Electronics Engineers Inc
dc.relationIeee Transactions On Smart Grid
dc.sourceWeb of Science
dc.subjectReactive power
dc.subjectVoltage control
dc.subjectLoad flow
dc.subjectMicrogrids
dc.subjectPower generation
dc.subjectOptimization
dc.subjectInverters
dc.subjectDistributed generation
dc.subjectmicrogrid
dc.subjectmultiobjective
dc.subjectoptimization
dc.subjectpower quality
dc.subjectunbalance
dc.titleOptimal Multiobjective Control of Low-Voltage AC Microgrids: Power Flow Regulation and Compensation of Reactive Power and Unbalance
dc.typeArtículos de revistas


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