Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept
This work presents a droop-based control strategy for a dc nanogrid designed to operate under the Net Zero Energy (NZE) concept, enabling seamless transitions between grid-connected and islanded modes. The nanogrid integrates photovoltaic (PV) generation, a fast electric vehicle charging station (E...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Eletrônica de Potência
2025-03-01
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| Series: | Eletrônica de Potência |
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| Online Access: | https://journal.sobraep.org.br/index.php/rep/article/view/1017 |
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| author | José C. U. Pena Jéssica A. A. Silva Mateus P. Dias Debora P. Damasceno Luiza H. S. Santos José A. Pomilio |
| author_facet | José C. U. Pena Jéssica A. A. Silva Mateus P. Dias Debora P. Damasceno Luiza H. S. Santos José A. Pomilio |
| author_sort | José C. U. Pena |
| collection | DOAJ |
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This work presents a droop-based control strategy for a dc nanogrid designed to operate under the Net Zero Energy (NZE) concept, enabling seamless transitions between grid-connected and islanded modes. The nanogrid integrates photovoltaic (PV) generation, a fast electric vehicle charging station (EVSE), and a battery energy storage system (BESS) into a $700~$V dc bus interfacing with the ac grid via a bidirectional three-phase AC-DC converter. An isolated DC-DC converter establishes a secondary $48~$V dc bus for powering dc loads. An energy management system (EMS) defines an optimal day-ahead power dispatch for the BESS to meet NZE objectives. At the primary control level, a modified power-to-voltage droop strategy ensures accurate power tracking and parallel operation with the AC-DC converter. This approach enables continuous voltage regulation of the main bus under instantaneous power imbalances caused by schedule deviations or operational mode transitions. Additionally, the proposed strategy eliminates the need for secondary control or high-bandwidth communication. The system is validated through hardware-in-the-loop (HIL) simulations using the Typhoon HIL 604 platform, with the control strategy implemented on a DSP. Real-time simulation results confirm stable performance under various operating conditions, including transitions between modes.
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| format | Article |
| id | doaj-art-664ea3fadcd44753b32e7a5d8e84707e |
| institution | DOAJ |
| issn | 1414-8862 1984-557X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Associação Brasileira de Eletrônica de Potência |
| record_format | Article |
| series | Eletrônica de Potência |
| spelling | doaj-art-664ea3fadcd44753b32e7a5d8e84707e2025-08-20T02:42:11ZengAssociação Brasileira de Eletrônica de PotênciaEletrônica de Potência1414-88621984-557X2025-03-013010.18618/REP.e202529Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy ConceptJosé C. U. Pena0https://orcid.org/0000-0001-5958-6227Jéssica A. A. Silva1https://orcid.org/0000-0001-6042-1657Mateus P. Dias2https://orcid.org/0000-0002-1624-4582Debora P. Damasceno3https://orcid.org/0000-0003-2872-6869Luiza H. S. Santos4https://orcid.org/0000-0001-5397-9871José A. Pomilio5https://orcid.org/0000-0001-5457-4438Universidade Estadual de Campinas (UNICAMP) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual de Campinas (UNICAMP) Universidade Estadual de Campinas (UNICAMP) This work presents a droop-based control strategy for a dc nanogrid designed to operate under the Net Zero Energy (NZE) concept, enabling seamless transitions between grid-connected and islanded modes. The nanogrid integrates photovoltaic (PV) generation, a fast electric vehicle charging station (EVSE), and a battery energy storage system (BESS) into a $700~$V dc bus interfacing with the ac grid via a bidirectional three-phase AC-DC converter. An isolated DC-DC converter establishes a secondary $48~$V dc bus for powering dc loads. An energy management system (EMS) defines an optimal day-ahead power dispatch for the BESS to meet NZE objectives. At the primary control level, a modified power-to-voltage droop strategy ensures accurate power tracking and parallel operation with the AC-DC converter. This approach enables continuous voltage regulation of the main bus under instantaneous power imbalances caused by schedule deviations or operational mode transitions. Additionally, the proposed strategy eliminates the need for secondary control or high-bandwidth communication. The system is validated through hardware-in-the-loop (HIL) simulations using the Typhoon HIL 604 platform, with the control strategy implemented on a DSP. Real-time simulation results confirm stable performance under various operating conditions, including transitions between modes. https://journal.sobraep.org.br/index.php/rep/article/view/1017DC microgridspower controldroop controlEMShardware-in-the-loopNet-Zero-Energy |
| spellingShingle | José C. U. Pena Jéssica A. A. Silva Mateus P. Dias Debora P. Damasceno Luiza H. S. Santos José A. Pomilio Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept Eletrônica de Potência DC microgrids power control droop control EMS hardware-in-the-loop Net-Zero-Energy |
| title | Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept |
| title_full | Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept |
| title_fullStr | Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept |
| title_full_unstemmed | Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept |
| title_short | Droop-based Control Strategy to operate a DC Nanogrid under the Net Zero Energy Concept |
| title_sort | droop based control strategy to operate a dc nanogrid under the net zero energy concept |
| topic | DC microgrids power control droop control EMS hardware-in-the-loop Net-Zero-Energy |
| url | https://journal.sobraep.org.br/index.php/rep/article/view/1017 |
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