A Getting Excitation Characteristic Curves of pTs With Linear Interpolation Method
[1]DU Zhengwang.A Getting Excitation Characteristic Curves of pTs With Linear Interpolation Method[J].Journal of Zhengzhou University (Engineering Science),2012,33(03):61-64.[doi:10.3969/j.issn.1671-6833.2012.03.015]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 03
Page number:
61-64
Column:
Public date:
2012-05-10
- Title:
- A Getting Excitation Characteristic Curves of pTs With Linear Interpolation Method
- Keywords:
- ferroresonance; excitation characteristic curve; linear interpolation method; least square fitting.Newion’s method
- CLC:
- TM864
- Abstract:
- For the sake of geting more precise curves, the paper introduces the linear inlerpolation methodand section excitation characteristic curves, First, the paper makes interpolation to the linear part of measuredvoltlage-current characteristic datn, the weight of linear data is increased with more linear data. Second to theexcitation characteristic curves of PTs, the paper adopts the 7 order polynomial function before the part of satu-ration depth and uses linear model at the part of saturation depth ; Last, the paper fits the excitalion character.istic with the aforesaid and the least square method. On one hand, the paper solves the problem of lacking da-ta. On the other hand, the calculation sample shows that the fitting accuracy has been greatly improved beforethe part of saturation depth, At the same time, the fting accuracy is not reduced at the part of saturaliondepth with linear model, Above all, the tolal ftting accuracy is improved.
- References:
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- Similar References:
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Last Update:
1900-01-01