Abstract
Among various bidirectional converters, with its simple structure, the bidirectional LLLC resonant converter can maintain the same working state of the resonant cavity during forward and reverse operation, can achieve zero voltage and zero current switching, and can be used in various medium and high voltage occasions, etc. The advantages stand out, making people gradually start Study its structure, discuss its parameter design, and study how to reduce its loss and improve its efficiency. However, there are few simulations and studies on this circuit in China. Therefore, this paper will carry out research on the bidirectional half-bridge three-level LLLC resonant converter based on LLC resonant structure. This article describes in detail the working status, commutation process and characteristic analysis corresponding to the topology. MATLAB is used to perform open-loop simulation to verify the correctness of the theory. Finally, the closed-loop simulation is used to control the load variation to verify the stability of the closed-loop output voltage.
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Acknowledgments
This research was supported by the 713th Research Institute of China Shipbuilding Corporation (NO. D14-G19-6S-005Y).
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Jia, H., Hou, D., Yan, L., Ding, M., Zhang, X. (2022). A Bidirectional Half-Bridge Three-Level LLLC Converter. In: Qin, Y., Jia, L., Liang, J., Liu, Z., Diao, L., An, M. (eds) Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021. EITRT 2021. Lecture Notes in Electrical Engineering, vol 868. Springer, Singapore. https://doi.org/10.1007/978-981-16-9913-9_31
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DOI: https://doi.org/10.1007/978-981-16-9913-9_31
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