Details

Autor(en) / Beteiligte

• Han, Xiao
• Liao, Yuefeng
• Yang, Duo

Titel

Model Predictive Control Strategy for DAB-LLC Hybrid Bidirectional Converter Based on Power Distribution Balance

Ist Teil von

• IEEE transactions on circuits and systems. II, Express briefs, 2024-06, Vol.71 (6), p.3236-3240

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2024

Quelle

IEEE Xplore

Beschreibungen/Notizen

• The DAB-LLC hybrid bidirectional converter based on Sigma structure combines the advantages of LLC resonant converter and dual active bridge converter, which has gained the attention of many scholars in recent years. However, there are few studies on the power distribution relationship of the internal sub-module, which affects the performance and efficiency of the whole system. Therefore, this brief proposes a model predictive control strategy based on power distribution balance, which firstly predicts the output by means of a discrete reduced-order model of the converter, then utilizes the constructed power distribution model to design a new cost function, and finally obtains an appropriate control quantity, so as to realize the improvement of the dynamic performance and at the same time ensure the stability of the power distribution relationship of the converter. Finally, the proposed control strategy is verified by experiments.