A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation
In remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults. Grid-connected renewable energy systems or micro-grid systems are preferable for such remote locations to meet the local crit...
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| Format: | Article |
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MDPI AG
2020-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/3/755 |
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| author | Umashankar Subramaniam Sridhar Vavilapalli Sanjeevikumar Padmanaban Frede Blaabjerg Jens Bo Holm-Nielsen Dhafer Almakhles |
| author_facet | Umashankar Subramaniam Sridhar Vavilapalli Sanjeevikumar Padmanaban Frede Blaabjerg Jens Bo Holm-Nielsen Dhafer Almakhles |
| author_sort | Umashankar Subramaniam |
| collection | DOAJ |
| description | In remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults. Grid-connected renewable energy systems or micro-grid systems are preferable for such remote locations to meet the local critical load requirements during grid-side failures. In renewable energy systems, solar photovoltaic (PV) power systems are accessible and hybrid PV-battery systems or energy storage systems (ESS) are more capable of providing uninterruptible power to the local critical loads during grid-side faults. This energy storage system also improves the system dynamics during power fluctuations. In present work, a PV-battery hybrid system with DC-side coupling is considered, and a power balancing control (PBC) is proposed to transfer the power to grid/load and the battery. In this system, a solar power conditioning system (PCS) acts as an interface across PV source, battery and the load/central grid. With the proposed PBC technique, the system can operate in following operational modes: (a) PCS can be able to work in grid-connected mode during regular operation; (b) PCS can be able to charge the batteries and (c) PCS can be able to operate in standalone mode during grid side faults and deliver power to the local loads. The proposed controls are explained, and the system response during transient and steady-state conditions is described. With the help of controller-in-loop simulation results, the proposed power balancing controls are validated, for both off-grid and on-grid conditions. |
| first_indexed | 2024-04-14T02:30:11Z |
| format | Article |
| id | doaj.art-9f1ea7fc4413468ea334ff4af404306a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T02:30:11Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-9f1ea7fc4413468ea334ff4af404306a2022-12-22T02:17:43ZengMDPI AGEnergies1996-10732020-02-0113375510.3390/en13030755en13030755A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation ValidationUmashankar Subramaniam0Sridhar Vavilapalli1Sanjeevikumar Padmanaban2Frede Blaabjerg3Jens Bo Holm-Nielsen4Dhafer Almakhles5Renewable Energy Lab, College of Engineering, Prince Sultan University, Riyadh 12435, Saudi ArabiaDepartment of Power Electronics, Bharat Heavy Electricals Limited (BHEL), Bengaluru 560026, IndiaCenter for Bioenergy and Green Engineering, Department of Energy Technology, Aalborg University, 6700 Esbjerg, DenmarkCenter of Reliable Power Electronics (CORPE), Department of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkCenter for Bioenergy and Green Engineering, Department of Energy Technology, Aalborg University, 6700 Esbjerg, DenmarkRenewable Energy Lab, College of Engineering, Prince Sultan University, Riyadh 12435, Saudi ArabiaIn remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults. Grid-connected renewable energy systems or micro-grid systems are preferable for such remote locations to meet the local critical load requirements during grid-side failures. In renewable energy systems, solar photovoltaic (PV) power systems are accessible and hybrid PV-battery systems or energy storage systems (ESS) are more capable of providing uninterruptible power to the local critical loads during grid-side faults. This energy storage system also improves the system dynamics during power fluctuations. In present work, a PV-battery hybrid system with DC-side coupling is considered, and a power balancing control (PBC) is proposed to transfer the power to grid/load and the battery. In this system, a solar power conditioning system (PCS) acts as an interface across PV source, battery and the load/central grid. With the proposed PBC technique, the system can operate in following operational modes: (a) PCS can be able to work in grid-connected mode during regular operation; (b) PCS can be able to charge the batteries and (c) PCS can be able to operate in standalone mode during grid side faults and deliver power to the local loads. The proposed controls are explained, and the system response during transient and steady-state conditions is described. With the help of controller-in-loop simulation results, the proposed power balancing controls are validated, for both off-grid and on-grid conditions.https://www.mdpi.com/1996-1073/13/3/755batterycascaded h-bridgechopperenergy storagemulti-levelpv inverter |
| spellingShingle | Umashankar Subramaniam Sridhar Vavilapalli Sanjeevikumar Padmanaban Frede Blaabjerg Jens Bo Holm-Nielsen Dhafer Almakhles A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation Energies battery cascaded h-bridge chopper energy storage multi-level pv inverter |
| title | A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation |
| title_full | A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation |
| title_fullStr | A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation |
| title_full_unstemmed | A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation |
| title_short | A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation |
| title_sort | hybrid pv battery system for on grid and off grid applications controller in loop simulation validation |
| topic | battery cascaded h-bridge chopper energy storage multi-level pv inverter |
| url | https://www.mdpi.com/1996-1073/13/3/755 |
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