| 引用本文: | 武剑利,舒乃秋,彭凌烟.变压器绕组传递函数的拟合原理及绕组变形诊断应用[J].电力自动化设备,2004,(6):88-90 |
| .Fit theory of transformer winding''''s transfer function and its application to diagnose winding deformation[J].Electric Power Automation Equipment,2004,(6):88-90 |
|
|
| 摘要: |
| 针对利用频响分析法检测变压器绕组变形的特点，即检测得到的牲量是绕组的频谱（传递函数），提出了利用正交多项式拟合变压器绕组传递函数的原理和方法。该方法避免了用普通多项式拟合传递函数造成的弊病。利用正交伴随矩阵求取传递函数的零、极点，并根据零、极点的后通过实例证明该方法简单、快速、灵敏度高，比仅仅依靠频响曲线判断绕组变形有了大的提高。 |
| 关键词: 电力变压器 绕组变形 传递函数 正交多项式 |
| DOI： |
| 分类号:TM41 |
| 基金项目: |
|
| Fit theory of transformer winding''''s transfer function and its application to diagnose winding deformation |
|
WU Jian - li 1 SHU Nai - qiu 1 PENG Ling - yan 2
|
| Abstract: |
| Transformer winding deformation can be detected using frequency response analysis ,namely the character got from which is the spectra of winding ( transfer function ) .The theory and method of using orthogonal polynomials to fit the transfer function of transformer winding is introdu - ced ,Which avoids the morbid problem caused by using usual polynomials.Zeros and poles are obtained by means of orthogonal companion matrix and the winding deformations are diagnosed according to their distribution.This method is proved simple ,fast and sensitive ,which is much better than that of only depending on frequency response curves. |
| Key words: power transformer,winding deformation,transfer function,orthogonal polynomials |
