Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage
Due to the advanced features of multidirectional power transfer and fast smoothing of the power fluctuation in renewable energy systems, the multiple-active-bridge based power-electronic-transformer (MAB-PET) with integrated energy storage units is becoming popular. However, the accurate electromagn...
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| Format: | Article |
| Language: | English |
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China electric power research institute
2025-01-01
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| Series: | CSEE Journal of Power and Energy Systems |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10436589/ |
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| _version_ | 1850126474097459200 |
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| author | Jianzhong Xu Conghui Zheng Wanying Xu Moke Feng Chengyong Zhao Gen Li |
| author_facet | Jianzhong Xu Conghui Zheng Wanying Xu Moke Feng Chengyong Zhao Gen Li |
| author_sort | Jianzhong Xu |
| collection | DOAJ |
| description | Due to the advanced features of multidirectional power transfer and fast smoothing of the power fluctuation in renewable energy systems, the multiple-active-bridge based power-electronic-transformer (MAB-PET) with integrated energy storage units is becoming popular. However, the accurate electromagnetic transient simulation of the MAB-PETs is extremely time-consuming due to the large number of circuit nodes and small time-step. This paper proposes a simplified EMT modeling approach for the MAB-PETs by employing the generalized state-space averaging method. First, the switching function method and Dommel algorithm are used to build the equivalent model of each power module. Further, the PET equivalent model is presented in a multi-port PM polymerization mode. The system is simplified by applying Fourier Decomposition to its state functions by ignoring high-order harmonics. Finally, a four-port equivalent voltage source circuit is obtained. The proposed simplified equivalent model is compared with the detailed model in PSCAD/EMTDC. Simulation results show the proposed approach has excellent accuracy and is 2–3 orders of magnitude faster than the DM. |
| format | Article |
| id | doaj-art-5a868f0d92d945a681b76445e515efee |
| institution | OA Journals |
| issn | 2096-0042 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | China electric power research institute |
| record_format | Article |
| series | CSEE Journal of Power and Energy Systems |
| spelling | doaj-art-5a868f0d92d945a681b76445e515efee2025-08-20T02:33:55ZengChina electric power research instituteCSEE Journal of Power and Energy Systems2096-00422025-01-011131199121010.17775/CSEEJPES.2022.0816010436589Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy StorageJianzhong Xu0Conghui Zheng1Wanying Xu2Moke Feng3Chengyong Zhao4Gen Li5North China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,ChinaNorth China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,ChinaNorth China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,ChinaNorth China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,ChinaNorth China Electric Power University,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,Beijing,ChinaTechnical University of Denmark (DTU),Electric Energy Section, Department of Engineering Technology,Ballerup,Denmark,2750Due to the advanced features of multidirectional power transfer and fast smoothing of the power fluctuation in renewable energy systems, the multiple-active-bridge based power-electronic-transformer (MAB-PET) with integrated energy storage units is becoming popular. However, the accurate electromagnetic transient simulation of the MAB-PETs is extremely time-consuming due to the large number of circuit nodes and small time-step. This paper proposes a simplified EMT modeling approach for the MAB-PETs by employing the generalized state-space averaging method. First, the switching function method and Dommel algorithm are used to build the equivalent model of each power module. Further, the PET equivalent model is presented in a multi-port PM polymerization mode. The system is simplified by applying Fourier Decomposition to its state functions by ignoring high-order harmonics. Finally, a four-port equivalent voltage source circuit is obtained. The proposed simplified equivalent model is compared with the detailed model in PSCAD/EMTDC. Simulation results show the proposed approach has excellent accuracy and is 2–3 orders of magnitude faster than the DM.https://ieeexplore.ieee.org/document/10436589/Energy storage sub-module (ESS)generalized state average methodmultiple-active-bridge (MAB)simplified electromagnetic transient (EMT) simulation |
| spellingShingle | Jianzhong Xu Conghui Zheng Wanying Xu Moke Feng Chengyong Zhao Gen Li Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage CSEE Journal of Power and Energy Systems Energy storage sub-module (ESS) generalized state average method multiple-active-bridge (MAB) simplified electromagnetic transient (EMT) simulation |
| title | Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage |
| title_full | Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage |
| title_fullStr | Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage |
| title_full_unstemmed | Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage |
| title_short | Simplified EMT Model of Multiple-Active-Bridge Based Power Electronic Transformer with Integrated Energy Storage |
| title_sort | simplified emt model of multiple active bridge based power electronic transformer with integrated energy storage |
| topic | Energy storage sub-module (ESS) generalized state average method multiple-active-bridge (MAB) simplified electromagnetic transient (EMT) simulation |
| url | https://ieeexplore.ieee.org/document/10436589/ |
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