基于励磁电感的变压器铁心剩磁估算

Estimation of Residual Magnetism in Transformer Cores based on Excitation Inductance

本文中作者分析了变压器铁心剩磁对励磁电感参数的影响,得到剩磁与励磁电感参数的关系特征,提出了一种应用正负双向脉冲激励源进行励磁电感辨识进而得到变压器铁心剩磁的估算方法,并通过试验验证了该方法的有效性。

In this paper,the authors analyze the effect of residual magnetism of transformer core on the excitation inductance parameters,put forward a method of applying the positive and negative bi-directional impulsive excitation source for the excitation inductance identification to obtain the estimation method of residual magnetism of the transformer core,and verify the effectiveness of the method through experiments.