摘要
研制了一种新的可变电感器,在铁芯中柱嵌入旋阀,旋阀由非铁磁质的阀板和铁磁质的阀板夹构成。通过调节阀板法线与铁芯中柱的夹角大小,改变主磁路经过的有效截面积,致使部分铁芯饱和来控制磁阻,达到调节电感器电感值的目的,实现可变电感器的无级平滑调节。通过自制样品对其进行实验分析,测得线圈中电压电流的波形。利用磁能密度计算得到了等效磁阻率,并用分段积分的方法进行验证。两种算法的结果表明分段算法求得的磁阻值略大于等效磁阻率求得的磁阻值,为旋阀结构可变电感器的优化提供有益的参考。
A ldnd of new variable inductor was developed, embedding rotary valve in the core column. Rotary valve consists of nonferromagnetic valve plate and ferromagnetic clamp. Regulating the angle between valve plate and core column can change the main magnetic circuit through the effective interfacial area, resulting in some reluctance to control regulating the inductor core saturation inductance value to realize stepless regulation of variable inductor. The waveform of the voltage and current in the coil is measured by the self-made sample. The equivalent reluctance was calculated by using the density of magnetic energy, and verified by the method of piecewise integration. The results of the two algorithms show that the reluctance value obtained by the subsection algorithm is slightly larger than the reluctance value obtained by the equivalent reluctance rate, which provides a useful reference for the optimization of the variable valve structure of the spin valve structure.
作者
徐杰
伍家驹
冯上贤
周叶
XU Jie;WU Jia-ju;FENG Shang-xian;ZHOU Ye(College of lnformation Engineering,Nanchang Hangkong University,Nanchang330000,China)
出处
《磁性材料及器件》
CAS
2018年第6期39-43,68,共6页
Journal of Magnetic Materials and Devices
关键词
可变电感器
旋阀结构
磁阻
variable inductor
rotary valve structure
reluctance
