摘要
为适应新一代变换器低压、大电流和快速暂态响应的功率需求,提出一种"目"字形耦合电感结构,通过分析耦合电感的磁通分布,建立了磁路模型,从而得到自感、漏感和互感的计算公式,并给出耦合电感的设计方法。通过仿真和实验,证明了磁件模型的正确性,得出"目"字形耦合电感器具有加工简单、电感量大、磁通密度分布更均匀以及直流叠加特性好等优点,将其应用于交错并联磁集成双向DC-DC变换器,具有相电流纹波小及效率高等优点。
In order to meet the power needs of a new generation of low-voltage,high-current,and fast transient response converter,a 'UUUU'shape coupled inductor structure is proposed. The flux distribution of the coupled inductor is firstly analyzed in order to establish the magnetic circuit model, and thus derive the formula for inductance,leakage inductance,and mutual inductance. Then the design method of coupled inductor is provided. Through simulation and experiments, the correctness of the magnetic component model is validated. The proposed 'UUUU ' shape coupled inductor has the characteristics of simple processing, large inductance,more uniform magnetic flux density distribution,and good DC superposition property. The'UUUU'shape coupled inductor can be applied to the interleaving bidirectional DC-DC converter with small phase current ripple and high efficiency.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第5期35-43,共9页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(51177067
U1510128)
辽宁省教育厅重点实验室基础研究项目(LZ2015045)资助
