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Model Predictive Current Control for G2V/V2G Bidirectional Operation of Onboard Charger
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| Author(s) |
Hyun-Gyu KOH, Tae-Seok KANG, Sami IRFAN, Yeong-Jun CHOI |
| Abstract |
This paper proposes a straightforward method using model predictive current control (MPCC) to achieve bidirectional power transfer in electric vehicle on-board chargers (OBCs). Unlike existing studies requiring separate controller structure changes and control gain adjustments for grid-to-vehicle (G2V) and vehicle-to-grid (V2G) modes, the proposed method enables seamless mode switching. Utilizing a totem-pole power factor correction (PFC) converter, with the primary leg switching at high frequency and the secondary leg at grid frequency, and a CLLC resonant converter, the system achieves soft switching and bidirectional power transfer. The proposed strategy maintains high power factor greater than 0.99 and input current total harmonic distortion (THD) less than 3\% in G2V mode, ensures stable 180-degree phase-shifted power transfer in V2G mode, and maintains stable soft switching at the resonant frequency in both modes. |
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| Filename: | 0277-epe2025-full-10312754.pdf |
| Filesize: | 533 KB |
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| Type |
Members Only |
| Date |
Last modified 2025-08-31 by System |
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