摘要
提出了一种含铁芯元件由伏安特性获得励磁特性曲线的新方法．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软件进行数据处理和曲线拟合，与以往的方法相比，此方法具有精度高。
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.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1999年第2期162-164,175,共4页
Journal of China University of Mining & Technology
基金
煤炭科学基金
关键词
电磁式
电压互感器
变压器
励磁特性
electromagnetism type PT, transformer, excitation character
