DC-link voltage stability enhancement in intermittent microgrids using coordinated reserve energy management strategy

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dc.authoridKilic, Heybet/0000-0002-6119-0886
dc.authoridMunir, Hafiz Mudassir/0000-0001-9345-4762
dc.contributor.authorImtiaz, Saqif
dc.contributor.authorYang, Lijun
dc.contributor.authorMunir, Hafiz Mudassir
dc.contributor.authorMemon, Zulfiqar Ali
dc.contributor.authorKilic, Heybet
dc.contributor.authorNaz, Muhammad Naveed
dc.date.accessioned2025-02-22T14:09:15Z
dc.date.available2025-02-22T14:09:15Z
dc.date.issued2025
dc.departmentDicle Üniversitesien_US
dc.description.abstractIn recent years, due to its cost effectiveness and environmental advantages, demand for renewable energy resources has grown and their contributions to grid power has therefore increased while requiring effective frequency and voltage regulation. DC link voltage instability is a potential problem in solar energy microgrids, especially during an intermittency, where the system reliability degrades and DC link capacitor is under higher stress. In this article, a novel reserve energy management scheme based on battery and super capacitor storage is presented to stabilize the DC link voltage and reduce capacitor stress, while enhancing the system reliability. The scheme is tested in four different scenarios: Inverter connected DC-microgrid with irradiance intermittencies, standalone DC-microgrid without inverter and irradiance intermittencies, standalone DC-microgrid without inverter and load intermittencies, and standalone DC-microgrid with inverter under irradiance intermittencies. Simulation results indicate that the proposed control strategy stabilizes DC link voltage over all scenarios, even subject to large instances of irradiance or load changes. During low solar irradiance, the battery and super-capacitor promote voltage stability by compensating power deficits from the utility grid in the inverter connected grid case. In stand alone mode, the battery provides power during intermittencies and the supercapacitor provides fast transient voltage compensation. The strategy is notable in reducing stress on DClink capacitors and mitigating inverter voltage fluctuations, ultimately enhancing inverter longevity. The results show that the proposed control scheme can improve voltage stability, mitigate the transient effects and guarantee the reliable operation of solar microgrids in variable conditions.en_US
dc.identifier.doi10.1049/rpg2.13197
dc.identifier.issn1752-1416
dc.identifier.issn1752-1424
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85216226641en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://hdl.handle.net/11468/29850
dc.identifier.volume19en_US
dc.identifier.wosWOS:001406957300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.relation.ispartofIET RENEWABLE POWER GENERATIONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKA_WOS_20250222
dc.subjectAC-DC power convertorsen_US
dc.subjectdistributed power generationen_US
dc.subjectelectrical faultsen_US
dc.subjectinvertorsen_US
dc.subjectpower capacitorsen_US
dc.titleDC-link voltage stability enhancement in intermittent microgrids using coordinated reserve energy management strategyen_US
dc.typeArticleen_US

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