双向无桥梁交叉托特姆极电源因子校正增强转换器的动态性能评估
Hsien-Chie Cheng1, Wen-You Jhu2, Yu-Cheng Liu3
1Department of Aerospace and Systems Engineering, Feng Chia University, Taichung 407, Taiwan.
Micromachines
|March 6, 2025
概括
本研究评估了用于电动汽车充电器的6.6千瓦碳化 (SiC) 功率因子校正 (PFC) 增压转换器. 与 (Si) IGBT相比,SiC转换器表现出更高的效率和功率密度,通过先进的模拟来验证.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 材料科学 材料科学 材料科学
背景情况:
- 电动汽车 (EV) 需要高效的车载充电器.
- 双向电力流对于电动汽车充电基础设施至关重要.
- 碳化 (SiC) 设备在高功率应用中比 (Si) 具有优势.
研究的目的:
- 为了评估6.6kW双向无桥式三脚交叉托特姆极功率因子校正 (PFC) 增压转换器的动态特征,用于EV车载充电器.
- 在拟议的转换器中评估SiC MOSFET模块的性能,效率和功率损耗.
- 将拟议的SiC转换器与非交叉式和基于Si IGBT的拓进行比较.
主要方法:
- 开发一个完全集成的电磁电路合模拟 (ECCS) 模型,包括电磁,等效电路和SiC MOSFET特征模型.
- 将寄生效应纳入ECCS模型以进行准确的性能评估.
- 使用双脉冲测试和闭环转换器操作数据验证ECCS模型.
主要成果:
- 基于SiC MOSFET的PFC提升转换器实现了高效率和功率密度.
- 对比分析表明,交叉式SiC拓在功耗损耗和效率方面优于非交叉式和Si IGBT基转换器.
- 参数分析确定了影响转换器功率损失的关键操作条件.
结论:
- 拟议的基于SiC的交叶托特姆极PFC增压转换器是高性能电动汽车车载充电器的可行解决方案.
- 在这种应用中,SiC MOSFET在效率和功率密度方面比Si IGBT具有显著的优势.
- 经过验证的ECCS模型为分析和优化这些功率电子转换器提供了可靠的工具.
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