Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter
An adaptive normalized droop control strategy for the interlinking converter of the hybrid microgrid has been proposed in this paper. The standard normalized droop can realize bidirectional power coordination between subgrids. However, transmission power accuracy is low, and subgrid bus voltage vari...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723005449 |
| _version_ | 1797691991783374848 |
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| author | Shumin Zong Juerui Cao Can Wang |
| author_facet | Shumin Zong Juerui Cao Can Wang |
| author_sort | Shumin Zong |
| collection | DOAJ |
| description | An adaptive normalized droop control strategy for the interlinking converter of the hybrid microgrid has been proposed in this paper. The standard normalized droop can realize bidirectional power coordination between subgrids. However, transmission power accuracy is low, and subgrid bus voltage varies from the rated value. The proposed control strategy avoids unnecessary power flow so as to achieve accurate power transmission and effective voltage deviation compensation. In this study, low voltage AC/DC hybrid microgrid is examined. It can be deduced from mathematics that the increase in droop coefficient can improve power transmission accuracy. The variation of AC/DC voltage is added to the operation criteria of the IC, which can reflect the load state, to prevent frequent action when the IC is close to the rated working condition. The state equation of the system is obtained by small signal modeling, and the upper limit of the droop coefficient is obtained by a stability constraint. Based on the preceding analysis, the adaptive normalized droop control method is designed to achieve accurate power transmission between subgrids. This ensures that the subgrid receiving power is kept in the rated state. Corresponding simulations based on MATLAB/Simulink and experimental results based on a hardware-in-the-loop platform have been illustrated. |
| first_indexed | 2024-03-12T02:21:08Z |
| format | Article |
| id | doaj.art-5f1e39d951ee4fc0802c1afb18deeba4 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-12T02:21:08Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-5f1e39d951ee4fc0802c1afb18deeba42023-09-06T04:52:04ZengElsevierEnergy Reports2352-48472023-09-01913771388Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converterShumin Zong0Juerui Cao1Can Wang2Harbin Institute of Technology (Shenzhen), Shenzhen 518055, ChinaHarbin Institute of Technology (Shenzhen), Shenzhen 518055, ChinaCorresponding author.; Harbin Institute of Technology (Shenzhen), Shenzhen 518055, ChinaAn adaptive normalized droop control strategy for the interlinking converter of the hybrid microgrid has been proposed in this paper. The standard normalized droop can realize bidirectional power coordination between subgrids. However, transmission power accuracy is low, and subgrid bus voltage varies from the rated value. The proposed control strategy avoids unnecessary power flow so as to achieve accurate power transmission and effective voltage deviation compensation. In this study, low voltage AC/DC hybrid microgrid is examined. It can be deduced from mathematics that the increase in droop coefficient can improve power transmission accuracy. The variation of AC/DC voltage is added to the operation criteria of the IC, which can reflect the load state, to prevent frequent action when the IC is close to the rated working condition. The state equation of the system is obtained by small signal modeling, and the upper limit of the droop coefficient is obtained by a stability constraint. Based on the preceding analysis, the adaptive normalized droop control method is designed to achieve accurate power transmission between subgrids. This ensures that the subgrid receiving power is kept in the rated state. Corresponding simulations based on MATLAB/Simulink and experimental results based on a hardware-in-the-loop platform have been illustrated.http://www.sciencedirect.com/science/article/pii/S2352484723005449Hybrid microgridInterlinking converterPartition operationAdaptive droop controlSystem stability |
| spellingShingle | Shumin Zong Juerui Cao Can Wang Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter Energy Reports Hybrid microgrid Interlinking converter Partition operation Adaptive droop control System stability |
| title | Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter |
| title_full | Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter |
| title_fullStr | Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter |
| title_full_unstemmed | Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter |
| title_short | Adaptive normalized droop control for low-voltage hybrid microgrid interlinking converter |
| title_sort | adaptive normalized droop control for low voltage hybrid microgrid interlinking converter |
| topic | Hybrid microgrid Interlinking converter Partition operation Adaptive droop control System stability |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723005449 |
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