Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid
In the DC microgrid system, the energy storage system must have both high power density and high energy density, and it is difficult for a single type of energy storage device to meet this requirement. The battery and the super capacitor are highly complementary in performance. Here, the battery and...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-06-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0909 |
| _version_ | 1831695821519716352 |
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| author | Wen Chunxue Hu Mingming Hu Changbin Piao Zhengguo Zhou Jinghua |
| author_facet | Wen Chunxue Hu Mingming Hu Changbin Piao Zhengguo Zhou Jinghua |
| author_sort | Wen Chunxue |
| collection | DOAJ |
| description | In the DC microgrid system, the energy storage system must have both high power density and high energy density, and it is difficult for a single type of energy storage device to meet this requirement. The battery and the super capacitor are highly complementary in performance. Here, the battery and the super capacitor are, respectively, connected to the DC bus through a bidirectional DC–DC converter to form a hybrid energy storage system. For a 380V DC microgrid system, a new type of symmetrical circuit topology structure with two inductors and two capacitors (CLLC) resonant network is proposed. Since the symmetrical CLLC resonant network has the zero voltage switching capability of the main power switch and the soft commutation capability of the output rectifier, the converter can operate at high power conversion efficiency. Finally, the effectiveness of the system control strategy is verified through simulation and experiments. |
| first_indexed | 2024-12-20T13:01:35Z |
| format | Article |
| id | doaj.art-694ecef6fff94051bdfe45dc7a1a0cfa |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-20T13:01:35Z |
| publishDate | 2019-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-694ecef6fff94051bdfe45dc7a1a0cfa2022-12-21T19:39:54ZengWileyThe Journal of Engineering2051-33052019-06-0110.1049/joe.2019.0909JOE.2019.0909Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgridWen Chunxue0Hu Mingming1Hu Changbin2Piao Zhengguo3Zhou Jinghua4College of Electrical and Control Engineering, North China University of TechnologyCollege of Electrical and Control Engineering, North China University of TechnologyCollege of Electrical and Control Engineering, North China University of TechnologyCollege of Electrical and Control Engineering, North China University of TechnologyCollege of Electrical and Control Engineering, North China University of TechnologyIn the DC microgrid system, the energy storage system must have both high power density and high energy density, and it is difficult for a single type of energy storage device to meet this requirement. The battery and the super capacitor are highly complementary in performance. Here, the battery and the super capacitor are, respectively, connected to the DC bus through a bidirectional DC–DC converter to form a hybrid energy storage system. For a 380V DC microgrid system, a new type of symmetrical circuit topology structure with two inductors and two capacitors (CLLC) resonant network is proposed. Since the symmetrical CLLC resonant network has the zero voltage switching capability of the main power switch and the soft commutation capability of the output rectifier, the converter can operate at high power conversion efficiency. Finally, the effectiveness of the system control strategy is verified through simulation and experiments.https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0909dc-dc power convertorszero voltage switchingdistributed power generationswitching convertorspower transformerssupercapacitorsrectifierspower generation controldc busbidirectional dc–dc converterhybrid energy storage systemdc microgrid systemsymmetrical cllc resonant networkhigh power conversion efficiencybidirectional cllc dc–dc transformerhigh power densityhigh energy densityenergy storage devicesupercapacitorzero voltage switchingsoft commutationpower switchvoltage 380.0 v |
| spellingShingle | Wen Chunxue Hu Mingming Hu Changbin Piao Zhengguo Zhou Jinghua Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid The Journal of Engineering dc-dc power convertors zero voltage switching distributed power generation switching convertors power transformers supercapacitors rectifiers power generation control dc bus bidirectional dc–dc converter hybrid energy storage system dc microgrid system symmetrical cllc resonant network high power conversion efficiency bidirectional cllc dc–dc transformer high power density high energy density energy storage device supercapacitor zero voltage switching soft commutation power switch voltage 380.0 v |
| title | Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid |
| title_full | Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid |
| title_fullStr | Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid |
| title_full_unstemmed | Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid |
| title_short | Research on characteristics of bidirectional CLLC DC–DC transformer used in DC microgrid |
| title_sort | research on characteristics of bidirectional cllc dc dc transformer used in dc microgrid |
| topic | dc-dc power convertors zero voltage switching distributed power generation switching convertors power transformers supercapacitors rectifiers power generation control dc bus bidirectional dc–dc converter hybrid energy storage system dc microgrid system symmetrical cllc resonant network high power conversion efficiency bidirectional cllc dc–dc transformer high power density high energy density energy storage device supercapacitor zero voltage switching soft commutation power switch voltage 380.0 v |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0909 |
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