新型磁控电抗器特性谐波研究

摘要

为了提高谐波抑制效果,提出了一种具有圆台型磁阀结构的磁控电抗器.根据电路等效的思想对提出的新型磁阀结构磁控电抗器进行了理论分析,推导了相应的磁化曲线,通过傅里叶变换建立了其输出谐波的数学模型,理论计算结果表明新型磁阀结构磁控电抗器的谐波特性优于传统磁控电抗器,并建立Matlab模型进行实例仿真,进一步讨论了该新型磁控电抗器的结构参数θ对其输出电流、各次谐波含量和响应时间的影响.%In order to improve the effect of harmonic suppression, a magnetically controlled reactor with a round platform magnetic valve structure is presented.The magnetically controlled reactor with novel magnetic valve structure is analyzed theoretically using the principle of equivalent circuit,the magnetization curve and mathematical model of output harmonic are deduced by Fourier transform. The Matlab simulation model is established, and the results show that its harmonic character is better than conventional magnetic control reactor. The influences of structure parameters θ on the output current and the harmonics and the response time of the magnetically controlled reactor are further discussed.