A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems
In the interconnection and optimized operation of the classical hybrid AC/DC microgrids (HMG), the conventional line-frequency transformer cannot block grid faults and comprehensively regulate voltages. A distribution grid fault produces voltage sags, swells, or harmonics, threatening the safe opera...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of Power Electronics |
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| Online Access: | https://ieeexplore.ieee.org/document/11088128/ |
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| _version_ | 1849228503753424896 |
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| author | Jinmu Lai Yue Yin Xin Yin Fan Xiao Jinrui Tang Jiaxuan Hu Zia Ullah Xianggen Yin |
| author_facet | Jinmu Lai Yue Yin Xin Yin Fan Xiao Jinrui Tang Jiaxuan Hu Zia Ullah Xianggen Yin |
| author_sort | Jinmu Lai |
| collection | DOAJ |
| description | In the interconnection and optimized operation of the classical hybrid AC/DC microgrids (HMG), the conventional line-frequency transformer cannot block grid faults and comprehensively regulate voltages. A distribution grid fault produces voltage sags, swells, or harmonics, threatening the safe operation of distributed renewable energy generation and user equipment in an HMG. This paper proposes a novel hybrid transformer-interconnected HMG (HT-HMG) and a multimode coordination strategy based on the multiplexing design of a multifunctional converter (MFC). The topology structure and operating principle of the proposed HT-HMG are introduced. A new type of HT, including a three-limb, three-winding line-frequency transformer and an MFC, is proposed for voltage transformation and partial power transmission. The MFC can be operated multimode coordination by flexibly implementing the switches, including shunt, series, island, and standby modes. A hierarchical coordination control strategy, consisting of an energy management layer and a converter control layer, is also designed for the HT-HMG based on its multimode operation. Finally, the accuracy and effectiveness of the proposed HT-HMG are verified through simulations and experiments. |
| format | Article |
| id | doaj-art-484d0466aefe485e8c8f4a45de3058bf |
| institution | Kabale University |
| issn | 2644-1314 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Power Electronics |
| spelling | doaj-art-484d0466aefe485e8c8f4a45de3058bf2025-08-22T23:17:31ZengIEEEIEEE Open Journal of Power Electronics2644-13142025-01-0161391140810.1109/OJPEL.2025.359156011088128A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy SystemsJinmu Lai0https://orcid.org/0000-0003-1667-1784Yue Yin1Xin Yin2https://orcid.org/0000-0001-6637-0643Fan Xiao3https://orcid.org/0000-0002-2598-0039Jinrui Tang4https://orcid.org/0000-0001-5148-340XJiaxuan Hu5https://orcid.org/0009-0007-3679-9191Zia Ullah6https://orcid.org/0000-0002-1466-3564Xianggen Yin7https://orcid.org/0000-0002-1030-4708School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, ChinaSchool of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, ChinaSchool of Automation, Wuhan University of Technology, Wuhan, ChinaSchool of Automation, Wuhan University of Technology, Wuhan, ChinaSchool of Automation, Wuhan University of Technology, Wuhan, ChinaSchool of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan, ChinaSchool of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, ChinaIn the interconnection and optimized operation of the classical hybrid AC/DC microgrids (HMG), the conventional line-frequency transformer cannot block grid faults and comprehensively regulate voltages. A distribution grid fault produces voltage sags, swells, or harmonics, threatening the safe operation of distributed renewable energy generation and user equipment in an HMG. This paper proposes a novel hybrid transformer-interconnected HMG (HT-HMG) and a multimode coordination strategy based on the multiplexing design of a multifunctional converter (MFC). The topology structure and operating principle of the proposed HT-HMG are introduced. A new type of HT, including a three-limb, three-winding line-frequency transformer and an MFC, is proposed for voltage transformation and partial power transmission. The MFC can be operated multimode coordination by flexibly implementing the switches, including shunt, series, island, and standby modes. A hierarchical coordination control strategy, consisting of an energy management layer and a converter control layer, is also designed for the HT-HMG based on its multimode operation. Finally, the accuracy and effectiveness of the proposed HT-HMG are verified through simulations and experiments.https://ieeexplore.ieee.org/document/11088128/Hybrid AC/DC microgridsdistributed renewable energyhybrid transformermultifunctional converter (MFC)fault blockingmultimode coordination |
| spellingShingle | Jinmu Lai Yue Yin Xin Yin Fan Xiao Jinrui Tang Jiaxuan Hu Zia Ullah Xianggen Yin A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems IEEE Open Journal of Power Electronics Hybrid AC/DC microgrids distributed renewable energy hybrid transformer multifunctional converter (MFC) fault blocking multimode coordination |
| title | A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems |
| title_full | A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems |
| title_fullStr | A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems |
| title_full_unstemmed | A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems |
| title_short | A Novel Multimode Coordination Strategy for Hybrid AC/DC Microgrids Integrated With Distributed Renewable Energy Systems |
| title_sort | novel multimode coordination strategy for hybrid ac dc microgrids integrated with distributed renewable energy systems |
| topic | Hybrid AC/DC microgrids distributed renewable energy hybrid transformer multifunctional converter (MFC) fault blocking multimode coordination |
| url | https://ieeexplore.ieee.org/document/11088128/ |
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