摘要
变压器耦合系数影响非接触变换器效率的关键因素。为提高非接触变压器的耦合系数，同时尽量减小其体积、质量，本文提出带屏蔽的绕组混合绕制的新型非接触变压器，并选用铝材料作为屏蔽材料，通过分析给出了屏蔽层的最佳长度公式。同时，结合新型变压器磁路仿真结果，给出其磁路模型，对磁芯中柱长度L做了优化：最后，本文制作了一个新型变压器，结果证明了所提出优化方法的可行性和有效性。
Coupling coefficient of a transformer is a key parameter affecting the efficiency of a eontactless energy transmission system. Aiming to obtain higher k, smaller size and lighter weight for the eontactless transformer, a new contaetless transformer with mixed coil and electromagnetic shielding was proposed. Aluminum material was used as a shielding material, and the optimum length was given. With the help of the magnetic field simulation results using Ansoft 2D, the optimum length of L was given. At last, a new contaetless transformer was achieved. Compared with our previous transformer, the new transformer offers about 10% in coupling coefficient at 10mm gap.
出处
《磁性元件与电源》
2016年第4期113-118,125,共7页
Components and Power
关键词
非接触变压器
参数优化
耦合系数
混合绕组结构
电磁场屏蔽
contactless transformer, parameter optimization, coupling coefficient, mixed-coil,electromagnetic shielding
