Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer
As new electric power conversion equipment, a multi-port power electronic transformer (MP-PET), including a power electronic converter, high-frequency transformer, and multiple ac or dc interconnection interfaces, has a broad application in the hybrid distribution network. However, high integration...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/11/2130 |
| _version_ | 1811187349829189632 |
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| author | Zhe Wang Yaohua Li Zixin Li Cong Zhao Fanqiang Gao Ping Wang |
| author_facet | Zhe Wang Yaohua Li Zixin Li Cong Zhao Fanqiang Gao Ping Wang |
| author_sort | Zhe Wang |
| collection | DOAJ |
| description | As new electric power conversion equipment, a multi-port power electronic transformer (MP-PET), including a power electronic converter, high-frequency transformer, and multiple ac or dc interconnection interfaces, has a broad application in the hybrid distribution network. However, high integration and a large number of energy storage devices has led to very a high-order model of the system. To address this issue, a reduced-order small signal model of MP-PET is established in this paper. By taking the participation factors of the system mode to the state variables, the reduced-order model is derived based on the state variables, which are highly correlated with the dc voltage dominant mode. Compared with the full-order model, the proposed reduced-order model is accurate enough and simplified, and the validity of the simplified model is verified against simulations on a 10 kV/3 MVA MP-PET. The simulation results indicate that the proposed reduced-order model coincides well with the dynamic performance of the MP-PET. |
| first_indexed | 2024-04-11T14:01:44Z |
| format | Article |
| id | doaj.art-ac4e04fb37664947824897773102f482 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T14:01:44Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ac4e04fb37664947824897773102f4822022-12-22T04:20:07ZengMDPI AGEnergies1996-10732019-06-011211213010.3390/en12112130en12112130Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic TransformerZhe Wang0Yaohua Li1Zixin Li2Cong Zhao3Fanqiang Gao4Ping Wang5Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaKey Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaKey Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaKey Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaKey Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaKey Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaAs new electric power conversion equipment, a multi-port power electronic transformer (MP-PET), including a power electronic converter, high-frequency transformer, and multiple ac or dc interconnection interfaces, has a broad application in the hybrid distribution network. However, high integration and a large number of energy storage devices has led to very a high-order model of the system. To address this issue, a reduced-order small signal model of MP-PET is established in this paper. By taking the participation factors of the system mode to the state variables, the reduced-order model is derived based on the state variables, which are highly correlated with the dc voltage dominant mode. Compared with the full-order model, the proposed reduced-order model is accurate enough and simplified, and the validity of the simplified model is verified against simulations on a 10 kV/3 MVA MP-PET. The simulation results indicate that the proposed reduced-order model coincides well with the dynamic performance of the MP-PET.https://www.mdpi.com/1996-1073/12/11/2130multi-port cascaded H-bridge power electronic transformerreduced-order small signal modelparticipation factormodal analysisstability analysis |
| spellingShingle | Zhe Wang Yaohua Li Zixin Li Cong Zhao Fanqiang Gao Ping Wang Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer Energies multi-port cascaded H-bridge power electronic transformer reduced-order small signal model participation factor modal analysis stability analysis |
| title | Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer |
| title_full | Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer |
| title_fullStr | Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer |
| title_full_unstemmed | Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer |
| title_short | Reduced-Order DC Terminal Dynamic Model for Multi-Port AC-DC Power Electronic Transformer |
| title_sort | reduced order dc terminal dynamic model for multi port ac dc power electronic transformer |
| topic | multi-port cascaded H-bridge power electronic transformer reduced-order small signal model participation factor modal analysis stability analysis |
| url | https://www.mdpi.com/1996-1073/12/11/2130 |
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