电焊机2024，Vol.54Issue(2)：44-51,8.DOI:10.7512/j.issn.1001-2303.2024.02.07
钢轨焊接接头感应加热电源三维数学模型及其控制策略研究
Research on Three-dimensional Mathematical Model and Control Strategy of Rail Welding Joint Induction Heating Power Supply
任鑫润 1吕其兵1
作者信息
- 1. 西南交通大学 材料科学与工程学院,四川 成都 610031
- 折叠
摘要
Abstract
In order to improve the performance of welded joints,the rail welding joint must be normalized after welding.Compared with the flame heating normalization method,the induction heating normalization method has the advantages of high degree of automation,stable normalizing quality,good working environment and so on.It is more and more recognized in rail field welding joint normalization.This paper focuses on the analysis of the PFM,PWM,PFM&PWM three AC side power regulation methods,the establishment of the mathematical model of the three control methods,and the use of MATLAB software to carry out three-dimensional visualization analysis of the mathematical model.The results show that the PFM&PWM control method has the advantages of less switching loss and less frequency change during power adjust-ment compared with the other two control methods.The control strategy of rail welding joint induction heating power sup-ply based on PFM&PWM control method is proposed,and its control track is illustrated by combining with the three-dimensional mathematical model of rail welding joint induction heating power supply;The software and hardware based on TMS320F28335 are designed to realize the control waveform of the control strategy.关键词
钢轨焊接接头/感应加热电源/MATLAB/三维数学模型/PFM&PWMKey words
rail welding joint/induction heating power supply/MATLAB/three-dimensional mathematical model/PFM&PWM分类
矿业与冶金引用本文复制引用
任鑫润,吕其兵..钢轨焊接接头感应加热电源三维数学模型及其控制策略研究[J].电焊机,2024,54(2):44-51,8.
