磁阀型可控电抗器的直流偏磁与谐波特性分析

摘要

介绍了磁阀型可控电抗器（ MCR ）无功调节的原理，使用ANSYS电磁场仿真软件对MCR磁路特点与直流偏磁特性进行描述，通过直流磁化实验获取电工钢片的磁化曲线数据，利用Matlab软件编写程序，使用三次样条插值函数求出MCR的输出电流，同时对不同直流偏磁下的输出电流进行傅里叶变换得到MCR磁饱和度与谐波之间的关系，为实际工程应用提供参考价值。%The principle of regulation of reactive power in magnetic-valve controllable reactor is introduced in this pa-per .Electromagnetic field software of ANSYS is applied for describing the magnetic path and DC magnetic bias .Mag-netization curve data of silicon steel sheet is obtained from the DC magnetization experiment .By programming of Mat-lab , cubic spline interpolation function is used for calculating the output currents of MCR .In order to find out the re-lationship of magnetic saturation value and harmonic , the output current with DC magnetic bias is analyzed by using the method of Fourier transform .The result provides reference value for practical engineering application .