摘要
文中分别从扩展磁板横截面积和降低磁板中高频磁通分量入手,提出降低平面电感高度以实现超薄化设计的方法。通过拉伸磁柱结构,扩展磁板横截面积,进而可以降低磁芯高度;进一步,提出基于矩阵磁结构低高度平面电感结构,利用高频磁通抵消降低了磁板中高频磁通量,进而实现磁芯高度降低。此外,针对临界连续模式功率因数校正变换器,文中给出其平面滤波电感尺寸结构参数优化设计方法和设计实例,并进行实验验证。结果表明,相同高度和体积下,所提出的优化矩阵磁结构平面电感具有更高效率。
Methods for reducing the height of a planar inductor were proposed by expanding the cross-sectional area of the magnetic plate and reducing the high-frequency magnetic flux in the magnetic plate to realize an ultra-thin design. By stretching the magnetic column, the cross-sectional area of the magnetic plate was extended, and then the height of the core was reduced. Furthermore, a low-height planar inductor structure based on matrix magnetic structure was proposed, which adopted the principle of magnetic flux cancellation to reduce the high-frequency magnetic flux in the magnetic plate. In addition, an optimized design method of the planar inductor was presented for the power factor correction converter operating in the critical conduction mode. Experimental results indicated that, with the same height and volume, the planar inductor with optimized matrix magnetic structure had higher efficiency.
作者
刘越
吴红飞
邹军
葛子贤
LIU Yue;WU Hongfei;ZOU Jun;GE Zixian(Center for More-electric-aircraft Power System(Nanjing University of Aeronautics and Astronautics),Nanjing 210016,Jiangsu Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2021年第19期6760-6768,共9页
Proceedings of the CSEE
基金
国家自然科学基金项目(51977105)
江苏省自然科学基金项目(BK20200017)
江苏省青蓝工程。
关键词
平面电感
矩阵磁
磁集成
超薄
临界导通模式
planar inductor
matrix magnetics
magnetic integration
ultra-thin
critical conduction mode
