Decentralized Virtual Impedance Control for Power Sharing and Voltage Regulation in Islanded Mode with Minimized Circulating Current

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dc.authorid0000-0002-8592-8267en_US
dc.authorid0000-0002-0012-763Xen_US
dc.authorid0000-0002-2247-2549en_US
dc.contributor.authorKhan, Mubashir Hayat
dc.contributor.authorZulkifli, Shamsul Aizam
dc.contributor.authorTutkun, Nedim
dc.contributor.authorEkmekçi, İsmail
dc.contributor.authorBurgio, Alessandro
dc.date.accessioned2024-06-24T07:31:01Z
dc.date.available2024-06-24T07:31:01Z
dc.date.issued2024en_US
dc.departmentFakülteler, Mühendislik ve Tasarım Fakültesi, Endüstri Mühendisliği Bölümüen_US
dc.description.abstractIn islanded operation, precise power sharing is an immensely critical challenge when there are different line impedance values among the different-rated inverters connected to the same electrical network. Issues in power sharing and voltage compensation at the point of common coupling, as well as the reverse circulating current between inverters, are problems in existing control strategies for parallel-connected inverters if mismatched line impedances are not addressed. Therefore, this study aims to develop an improved decentralized controller for good power sharing with voltage compensation using the predictive control scheme and circulating current minimization between the inverters' current flow. The controller was developed based on adaptive virtual impedance (AVI) control, combined with finite control set-model predictive control (FCS-MPC). The AVI was used for the generation of reference voltage, which responded to the parameters from the virtual impedance loop control to be the input to the FCS-MPC for a faster tracking response and to have minimum tracking error for better pulse-width modulation generation in the space-vector form. As a result, the circulating current was maintained at below 5% and the inverters were able to share an equal power based on the load required. At the end, the performance of the AVI-based control scheme was compared with those of the conventional and static-virtual-impedance-based methods, which have also been tested in simulation using MATLAB/Simulink software 2021a version. The comparison results show that the AVI FCS MPC give 5% error compared to SVI at 10% and conventional PI at 20%, in which AVI is able to minimize the circulating current when mismatch impedance is applied to the DGs.en_US
dc.identifier.doi10.3390/electronics13112142en_US
dc.identifier.issue11en_US
dc.identifier.scopus2-s2.0-85195847259en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://hdl.handle.net/11467/7306
dc.identifier.urihttps://doi.org/10.3390/electronics13112142
dc.identifier.volume13en_US
dc.identifier.wosWOS:001245514900001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.relation.ispartofElectronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectadaptive virtual impedance (AVI); finite control set–model predictive control; mismatched impedances; voltage-source converter (VSC); voltage compensationen_US
dc.titleDecentralized Virtual Impedance Control for Power Sharing and Voltage Regulation in Islanded Mode with Minimized Circulating Currenten_US
dc.typeArticleen_US

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