非线性励磁特性曲线转换方法的研究及应用

提出了一种含铁芯元件由伏安特性获得盛磁特性的新方法，通过对测量的一组伏安特性数据进行平滑和线性化处理，逐步求出励磁特性曲线上各对应点，然后对其分段拟合，得到励磁特性表达式，本方法利用了ＧＲＡＦＴＯＯＬ软件进行数据和处理曲线拟合，与以往的方法相比，此方法具有精度高，处理方便等优点。

Study and Application of Non-Linearity Excitation Character Curve's Transform Method

A new conversion method of the excitation character curve of the ironcore widing component according to its volt ampere character is put forward. Through a smoothness and linearization process of measured volt ampere character data, the corresponding points of the excitation character curve can be found out step by step. Then the subsection regression of the excitation character curve is fitted and the excitation character expression is obtained. This method carries out the data processing and the curve regression through the GRAFTOOL software. Compared with former methods, its excellence includes higher precision, easier disposal etc.