An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid
In dc microgrid, energy storage system (ESS) plays a crucial role to provide short-or-long term and high-quality electric energy. The different control strategies for bidirectional dc-dc converter (BDC) of ESS in grid-tied and islanded modes pose challenges to the coordination control of the dc micr...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/160613 |
| _version_ | 1811681786499956736 |
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| author | Li, Xiangke Jiang, Wentao Wang, Junjun Wang, Peng Wu, Xiaohua |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Xiangke Jiang, Wentao Wang, Junjun Wang, Peng Wu, Xiaohua |
| author_sort | Li, Xiangke |
| collection | NTU |
| description | In dc microgrid, energy storage system (ESS) plays a crucial role to provide short-or-long term and high-quality electric energy. The different control strategies for bidirectional dc-dc converter (BDC) of ESS in grid-tied and islanded modes pose challenges to the coordination control of the dc microgrid. This paper proposes an autonomous control scheme for the BDC in dc microgrid. The proposed control scheme is based on V2-P droop control and unifies bus voltage regulation and power regulation in a single control structure. Thus, global smooth transition between various operation modes can be achieved without any control strategy changes, which avoids various mode switch detection mechanisms and improves system stability. Furthermore, the proposed control scheme is fully decentralized which reduces the reliance on communication, and enhances the reliability of the microgrid. On the other hand, V2-P droop approach eliminates the negative effect of widespread constant power loads (CPLs) in dc microgrid. The stability of the proposed control method is illustrated, and the design guideline of some critical control gains is addressed. Finally, the effectiveness of the proposed control scheme is validated by the real-time hardware-in-loop (HIL) platform. |
| first_indexed | 2024-10-01T03:46:29Z |
| format | Journal Article |
| id | ntu-10356/160613 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:46:29Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1606132022-08-01T07:37:57Z An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid Li, Xiangke Jiang, Wentao Wang, Junjun Wang, Peng Wu, Xiaohua School of Electrical and Electronic Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Electrical and electronic engineering Constant Power Loads Energy Storage In dc microgrid, energy storage system (ESS) plays a crucial role to provide short-or-long term and high-quality electric energy. The different control strategies for bidirectional dc-dc converter (BDC) of ESS in grid-tied and islanded modes pose challenges to the coordination control of the dc microgrid. This paper proposes an autonomous control scheme for the BDC in dc microgrid. The proposed control scheme is based on V2-P droop control and unifies bus voltage regulation and power regulation in a single control structure. Thus, global smooth transition between various operation modes can be achieved without any control strategy changes, which avoids various mode switch detection mechanisms and improves system stability. Furthermore, the proposed control scheme is fully decentralized which reduces the reliance on communication, and enhances the reliability of the microgrid. On the other hand, V2-P droop approach eliminates the negative effect of widespread constant power loads (CPLs) in dc microgrid. The stability of the proposed control method is illustrated, and the design guideline of some critical control gains is addressed. Finally, the effectiveness of the proposed control scheme is validated by the real-time hardware-in-loop (HIL) platform. This work was supported in part by Scholarship from the China Scholarship Council under Grant 201806290189 and in part by Energy Research Institute at NTU (ERI@N). 2022-08-01T07:37:57Z 2022-08-01T07:37:57Z 2021 Journal Article Li, X., Jiang, W., Wang, J., Wang, P. & Wu, X. (2021). An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid. IEEE Transactions On Energy Conversion, 36(2), 950-960. https://dx.doi.org/10.1109/TEC.2020.3020127 0885-8969 https://hdl.handle.net/10356/160613 10.1109/TEC.2020.3020127 2-s2.0-85106989658 2 36 950 960 en IEEE Transactions on Energy Conversion © 2020 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Constant Power Loads Energy Storage Li, Xiangke Jiang, Wentao Wang, Junjun Wang, Peng Wu, Xiaohua An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title | An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title_full | An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title_fullStr | An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title_full_unstemmed | An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title_short | An autonomous control scheme of global smooth transitions for bidirectional DC-DC converter in DC microgrid |
| title_sort | autonomous control scheme of global smooth transitions for bidirectional dc dc converter in dc microgrid |
| topic | Engineering::Electrical and electronic engineering Constant Power Loads Energy Storage |
| url | https://hdl.handle.net/10356/160613 |
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