Non-ideal two-level battery charger—modeling and simulation
A comprehensive analysis of a two-level battery charger model is presented, focusing on its switched and averaged dynamics validated via MATLAB Simulink simulations. The system, powered by an 800 V DC source, is managed by a robust PI-compensated feedback loop, delivering minimal ripple, rapid trans...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIMS Press
2025-01-01
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| Series: | AIMS Electronics and Electrical Engineering |
| Subjects: | |
| Online Access: | https://www.aimspress.com/article/doi/10.3934/electreng.2025004 |
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| Summary: | A comprehensive analysis of a two-level battery charger model is presented, focusing on its switched and averaged dynamics validated via MATLAB Simulink simulations. The system, powered by an 800 V DC source, is managed by a robust PI-compensated feedback loop, delivering minimal ripple, rapid transient response, and high stability under varying load conditions. Results demonstrate precise battery current control with a 4 ms settling time for step changes and ripple levels kept below 0.16% for current and 2.4% for capacitor voltage. Sensitivity analyses highlight the impact of non-ideal resistances—such as MOSFET on-resistance and inductor resistance—on efficiency and equilibrium voltage stability. Stability and loop gain studies confirm robust control performance, with all poles positioned in the stable region of the s-plane, ensuring reliable operation. This work provides key insights for designing high-efficiency, stable battery chargers and supports the use of advanced control techniques to further enhance converter performance. |
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| ISSN: | 2578-1588 |