Analysis of Temperature Compensation Control System in Medium Frequency Induction Furnace

Bi Houhuang; He Jianing; Guo Kai; Li Tuyu

doi:10.15980/j.tzzz.2016.07.009

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Analysis of Temperature Compensation Control System in Medium Frequency Induction Furnace
Vol. 36, Issue 7, Pages: 700-702(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.07.009

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[1]毕厚煌,何家宁,郭凯,黎土煜.中频感应电炉温度补偿控制系统研究与分析[J].特种铸造及有色合金,2016,36(07):700-702.

Bi Houhuang, He Jianing, Guo Kai, et al. Analysis of Temperature Compensation Control System in Medium Frequency Induction Furnace. [J]. Special Casting & Nonferrous Alloys 36(7):700-702(2016)
[1]毕厚煌,何家宁,郭凯,黎土煜.中频感应电炉温度补偿控制系统研究与分析[J].特种铸造及有色合金,2016,36(07):700-702. DOI： 10.15980/j.tzzz.2016.07.009.

Bi Houhuang, He Jianing, Guo Kai, et al. Analysis of Temperature Compensation Control System in Medium Frequency Induction Furnace. [J]. Special Casting & Nonferrous Alloys 36(7):700-702(2016) DOI： 10.15980/j.tzzz.2016.07.009.

摘要

中频感应电炉温度控制存在严重的滞后现象

传统的PID温度控制出现超调量较大、温度调整周期过长等问题。采用改进型史密斯补偿控制系统后

克服纯滞后时间对控制系统的影响。通过MATLAB对控制系统进行仿真

发现温度控制变得更加精确、平稳

缩短系统调整至稳态所需时间

控制过程中的超调量明显降低。系统的整体抗干扰性和鲁棒性得到进一步提高

满足了生产中对中频感应电炉温度控制各项参数指标的要求。

Abstract

The temperature control for medium frequency induction furnace has serious lag phenomenon.The traditional PID temperature control is easy to lead to a large overshoot and long adjustment period in temperature control and other problems.Through using improved Smith compensation control system

the pure time-lag effect on the control system can be eliminated.MATLAB simulation shows that the temperature control becomes more accuracy and smooth.The response time for system adjustment to steady state can be shorten.The overshoot volume is decreased obviously in control process.System anti-interference performance and robustness are further improved

so the parameters meet the medium frequency induction furnace temperature in control system.