An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems
In this work, a control strategy is developed for different components in DC microgrids where set points for all controllers are determined from an energy management system (EMS). The proposed EMS-based control scheme is developed for DC microgrids with solar photovoltaic (PV) systems as the primary...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/11/2992 |
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| author | Subarto Kumar Ghosh Tushar Kanti Roy Md Abu Hanif Pramanik Ajay Krishno Sarkar Md. Apel Mahmud |
| author_facet | Subarto Kumar Ghosh Tushar Kanti Roy Md Abu Hanif Pramanik Ajay Krishno Sarkar Md. Apel Mahmud |
| author_sort | Subarto Kumar Ghosh |
| collection | DOAJ |
| description | In this work, a control strategy is developed for different components in DC microgrids where set points for all controllers are determined from an energy management system (EMS). The proposed EMS-based control scheme is developed for DC microgrids with solar photovoltaic (PV) systems as the primary generation units along with energy storage systems. In this work, the concept of dual energy storage systems (DESSs) is used, which includes a battery energy storage system (BESS) and supercapacitor (SC). The main feature of this DESS is to improve the dynamic performance of DC microgrids during severe transients appearing from changes in load demands as well as in the output power from solar PV units. Furthermore, the proposed EMS-based control scheme aims to enhance the lifetime of the BESS in DC microgrids with DESSs and voltage stability as compared to the same without SCs. The proposed EMS-based control strategy uses proportional-integral (PI) controllers to regulate the switching control actions for different converters within the DC microgrid based on the decision obtained from the EMS in order to achieve the desired control objectives. The performance of the proposed scheme was analyzed through simulation results in terms of improving the voltage stability, maintaining the power balance, and enhancing the lifetime of BESSs within a DC microgrid framework incorporated with the DESS. The simulations are carried out in the MATLAB/SIMULINK simulation platform and compared with a similar approach having only a single energy storage system, i.e., the BESS. |
| first_indexed | 2024-03-10T19:15:36Z |
| format | Article |
| id | doaj.art-ffa67c87b7ab4e7d9d97673ce2f9bb16 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:15:36Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ffa67c87b7ab4e7d9d97673ce2f9bb162023-11-20T03:26:14ZengMDPI AGEnergies1996-10732020-06-011311299210.3390/en13112992An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage SystemsSubarto Kumar Ghosh0Tushar Kanti Roy1Md Abu Hanif Pramanik2Ajay Krishno Sarkar3Md. Apel Mahmud4Department of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshDepartment of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshDepartment of Electrical & Computer Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshDepartment of Electrical & Electronic Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, BangladeshSchool of Engineering, Deakin University, Geelong, VIC 3216, AustraliaIn this work, a control strategy is developed for different components in DC microgrids where set points for all controllers are determined from an energy management system (EMS). The proposed EMS-based control scheme is developed for DC microgrids with solar photovoltaic (PV) systems as the primary generation units along with energy storage systems. In this work, the concept of dual energy storage systems (DESSs) is used, which includes a battery energy storage system (BESS) and supercapacitor (SC). The main feature of this DESS is to improve the dynamic performance of DC microgrids during severe transients appearing from changes in load demands as well as in the output power from solar PV units. Furthermore, the proposed EMS-based control scheme aims to enhance the lifetime of the BESS in DC microgrids with DESSs and voltage stability as compared to the same without SCs. The proposed EMS-based control strategy uses proportional-integral (PI) controllers to regulate the switching control actions for different converters within the DC microgrid based on the decision obtained from the EMS in order to achieve the desired control objectives. The performance of the proposed scheme was analyzed through simulation results in terms of improving the voltage stability, maintaining the power balance, and enhancing the lifetime of BESSs within a DC microgrid framework incorporated with the DESS. The simulations are carried out in the MATLAB/SIMULINK simulation platform and compared with a similar approach having only a single energy storage system, i.e., the BESS.https://www.mdpi.com/1996-1073/13/11/2992common DC-bus voltageDC microgridsdual energy storage systemenergy management systempower balancestate of charge |
| spellingShingle | Subarto Kumar Ghosh Tushar Kanti Roy Md Abu Hanif Pramanik Ajay Krishno Sarkar Md. Apel Mahmud An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems Energies common DC-bus voltage DC microgrids dual energy storage system energy management system power balance state of charge |
| title | An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems |
| title_full | An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems |
| title_fullStr | An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems |
| title_full_unstemmed | An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems |
| title_short | An Energy Management System-Based Control Strategy for DC Microgrids with Dual Energy Storage Systems |
| title_sort | energy management system based control strategy for dc microgrids with dual energy storage systems |
| topic | common DC-bus voltage DC microgrids dual energy storage system energy management system power balance state of charge |
| url | https://www.mdpi.com/1996-1073/13/11/2992 |
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