大学物理 ›› 2017, Vol. 36 ›› Issue (12): 22-25.doi: 10.16854/j.cnki.1000-0712.2017.12.006

• 教学讨论 • 上一篇    下一篇

关于分数阶RLα-Cβ 并联电路相频特性的讨论

王廷江   

  1. 西南大学荣昌校区基础部,重庆 402460
  • 收稿日期:2017-02-06 修回日期:2017-04-17 出版日期:2017-12-20 发布日期:2017-12-20
  • 作者简介:王廷江(1969—),男,四川阆中人,西南大学荣昌校区基础部副教授,硕士,主要从事大学物理教学及电工
  • 基金资助:
    西南大学实验技术研究项目(No.SYJ2016058)资助

On the phase-frequency characteristic of fractional order RLα-Cβ parallel

WANG Ting-jiang   

  1. Department of Basic Science,Rongchang Campus,Southwest University,Rongchang,Chongqing 402460,China
  • Received:2017-02-06 Revised:2017-04-17 Online:2017-12-20 Published:2017-12-20

摘要: 根据电路理论求得分数阶RLα-Cβ 并联电路的导纳,以α=β、CR2/L<<1为条件,求得RLα-Cβ 并联电路相频特性的简易表达式,并对相频特性进行了理论分析和数值仿真分析,二者分析结果基本吻合,从而找到了相频特性随分数阶次数及元件参数变化的规律.

关键词: 分数阶, 并联电路, 相频特性

Abstract: According to the theory of circuit,the admittance of the fractional order RLα-Cβ parallel circuit is obtained in the condition α=β and CR2/L<<1,a simple expression of the phase-frequency characteristic of the parallel resonant circuit is deduced,and the analysis and discussion are carried out.The theoretical analysis is in agreement with simulation result,and thus the law of phase-frequency characteristic with the change of element parameters and fractional order is found.

Key words: fractional-order, parallel circuit, phase-frequency characteristic