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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Hybrid-Bridge LLC Series Resonant Converter for Deeply Depleted PEV Battery Charging
verfasst von : M. Imran Shahzad, Shahid Iqbal, Soib Taib
Erschienen in: 9th International Conference on Robotic, Vision, Signal Processing and Power Applications
Verlag: Springer Singapore
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Abstract
In this paper, a hybrid-bridge LLC series resonant converter with low circulating current and reduced switching losses for on-board battery charging of plug-in electric vehicle (PEV) is presented. Full-bridge (FB) is utilized in LLC converter with narrow range switching frequency within below resonance frequency region for depleted battery charging. To cover the charging voltage range for deeply depleted battery, the converter operates using half-bridge (HB) in both above and below resonance frequency regions. For both modes, the converter uses two fixed voltage levels at input to keep the switching frequency in narrow range. MATAB Simulink is used to simulate the converter with 3 kW maximum output power. Simulation results show that the LLC converter covers the wide charging voltage range 100–420 V for deeply depleted to fully charged battery using the constant-current, constant-voltage (CC-CV) charging, having lower turn-off current of power switches and low circulating current in resonant tank.