Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems
<p dir="ltr">PV systems are a popular energy resource, prevalent worldwide; however, shade faults manifested in PV systems limit its power conversion efficiency. The occurrence of multiple power peaks and their location are highly uncertain in PV systems; this necessitates the use of...
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2022
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| _version_ | 1864513506641969152 |
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| author | J. Prasanth Ram (19499062) |
| author2 | Dhanup S. Pillai (19499065) Ye-Eun Jang (19499068) Young-Jin Kim (1894570) |
| author2_role | author author author |
| author_facet | J. Prasanth Ram (19499062) Dhanup S. Pillai (19499065) Ye-Eun Jang (19499068) Young-Jin Kim (1894570) |
| author_role | author |
| dc.creator.none.fl_str_mv | J. Prasanth Ram (19499062) Dhanup S. Pillai (19499065) Ye-Eun Jang (19499068) Young-Jin Kim (1894570) |
| dc.date.none.fl_str_mv | 2022-11-23T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3390/en15238860 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Reconfigured_Photovoltaic_Model_to_Facilitate_Maximum_Power_Point_Tracking_for_Micro_and_Nano-Grid_Systems/26862316 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Electrical engineering Electronics, sensors and digital hardware global maximum power point (GMPP) hill climbing (HC) photovoltaic (PV) shade faults array reconfiguration micro- and nano-grids |
| dc.title.none.fl_str_mv | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">PV systems are a popular energy resource, prevalent worldwide; however, shade faults manifested in PV systems limit its power conversion efficiency. The occurrence of multiple power peaks and their location are highly uncertain in PV systems; this necessitates the use of complex maximum power point tracking algorithms to introduce high voltage oscillations. To address this issue, a new reconfigurable PV array to produce a global maximum power point (GMPP) algorithm close to the Voc regions was introduced. This enables the use of a simple Perturb and Observe (P&O) algorithm to easily track GMPP. For reconfiguration, a simple 5 × 5 PV array is considered, and a new physical relocation procedure based on the position square method is proposed. Performance of the proposed reconfiguration model is tested for four various shade events and its row current evaluations are comprehensively analyzed. Furthermore, evaluations of fill factor, mismatch loss, and power loss are quantitatively compared against Dominance Square and TCT schemes. Since the power enhancement is ensured in a reconfigurable PV array, the fixed reconfiguration is tailored to suit residential PV and microgrid systems. For MPP evaluations, hardware demonstrations are performed with a lab scale prototype model developed with a PV simulator and a DC–DC power electronic interface. The I–V characteristics of conventional and reconfigured models are programmed into the simulator and the use of the hill climbing algorithm is validated. To analyze the voltage and power oscillations with MPP tracking, the PSO algorithm is also tested for two test patterns and its results are comprehensively studied.</p><h2>Other Information</h2><p dir="ltr">Published in: Energies<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3390/en15238860" target="_blank">https://dx.doi.org/10.3390/en15238860</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_4e817ab5646bc08a3475b0789ab77dda |
| identifier_str_mv | 10.3390/en15238860 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/26862316 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid SystemsJ. Prasanth Ram (19499062)Dhanup S. Pillai (19499065)Ye-Eun Jang (19499068)Young-Jin Kim (1894570)EngineeringElectrical engineeringElectronics, sensors and digital hardwareglobal maximum power point (GMPP)hill climbing (HC)photovoltaic (PV)shade faultsarray reconfigurationmicro- and nano-grids<p dir="ltr">PV systems are a popular energy resource, prevalent worldwide; however, shade faults manifested in PV systems limit its power conversion efficiency. The occurrence of multiple power peaks and their location are highly uncertain in PV systems; this necessitates the use of complex maximum power point tracking algorithms to introduce high voltage oscillations. To address this issue, a new reconfigurable PV array to produce a global maximum power point (GMPP) algorithm close to the Voc regions was introduced. This enables the use of a simple Perturb and Observe (P&O) algorithm to easily track GMPP. For reconfiguration, a simple 5 × 5 PV array is considered, and a new physical relocation procedure based on the position square method is proposed. Performance of the proposed reconfiguration model is tested for four various shade events and its row current evaluations are comprehensively analyzed. Furthermore, evaluations of fill factor, mismatch loss, and power loss are quantitatively compared against Dominance Square and TCT schemes. Since the power enhancement is ensured in a reconfigurable PV array, the fixed reconfiguration is tailored to suit residential PV and microgrid systems. For MPP evaluations, hardware demonstrations are performed with a lab scale prototype model developed with a PV simulator and a DC–DC power electronic interface. The I–V characteristics of conventional and reconfigured models are programmed into the simulator and the use of the hill climbing algorithm is validated. To analyze the voltage and power oscillations with MPP tracking, the PSO algorithm is also tested for two test patterns and its results are comprehensively studied.</p><h2>Other Information</h2><p dir="ltr">Published in: Energies<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3390/en15238860" target="_blank">https://dx.doi.org/10.3390/en15238860</a></p>2022-11-23T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3390/en15238860https://figshare.com/articles/journal_contribution/Reconfigured_Photovoltaic_Model_to_Facilitate_Maximum_Power_Point_Tracking_for_Micro_and_Nano-Grid_Systems/26862316CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/268623162022-11-23T09:00:00Z |
| spellingShingle | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems J. Prasanth Ram (19499062) Engineering Electrical engineering Electronics, sensors and digital hardware global maximum power point (GMPP) hill climbing (HC) photovoltaic (PV) shade faults array reconfiguration micro- and nano-grids |
| status_str | publishedVersion |
| title | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| title_full | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| title_fullStr | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| title_full_unstemmed | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| title_short | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| title_sort | Reconfigured Photovoltaic Model to Facilitate Maximum Power Point Tracking for Micro and Nano-Grid Systems |
| topic | Engineering Electrical engineering Electronics, sensors and digital hardware global maximum power point (GMPP) hill climbing (HC) photovoltaic (PV) shade faults array reconfiguration micro- and nano-grids |