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For high-power wireless power transfer systems (WPT), current is often controlled to increase the power of electrical energy. To ensure the reliability of WPT, the control system needs to maintain that the current response has good dynamic performance. Therefore, this article proposes a current predictive control based on duty cycle rapid localization to improve perfect dynamics on the topology structure of cascaded DC-DC converters after the energy output side. Firstly, precise mathematical model is established for the Buck converter, and the objective function is simplified to quickly get the duty cycle position. Then, iterative optimization predictive control is performed within a small range of duty cycles. Finally, the comparison is made with traditional PI control algorithms. The results indicate that MPC strategy can accelerate response speed and adapt to complex and variable working conditions, verifying the effectiveness of the strategy. © 2023 IEEE.
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Year: 2023
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 2
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