Mold Level Control of Large Size Ingot Based on Fuzzy Self-Tuning PID

doi:10.3901/JME.2018.22.212

Journal of Mechanical Engineering ›› 2018, Vol. 54 ›› Issue (22): 212-217.doi: 10.3901/JME.2018.22.212

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Mold Level Control of Large Size Ingot Based on Fuzzy Self-Tuning PID

GUO Chenglin¹, JIANG Ripeng¹, LI Xiaoqian², LI Ruiqing¹, ZHAN Lihua²

1. Light Alloy Research Institute, Central South University, Changsha 410083;
2. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083

Received:2017-10-16 Revised:2018-03-15 Online:2018-11-20 Published:2018-11-20

Abstract

Abstract: Manufacturing process of Large size ingot is complex, its mold level control affects the quality of ingot directly,in view of the time variability and hysteresis of mold level control,the mathematical model of the mold level control system is constructed. Furthermore,fuzzy self-tuning PID control strategy is presented and the controller is designed in order to realize the online self-tuning of PID parameters.The simulation results of Matlab show that the system has better robustness than the conventional PID control.Adding fuzzy control to improve the closed-loop control procedures on the basis of S7-300PLC,Configuring the control process by WinCC flexible,and establish connection with PLC,the simulation control results is consistent with the Matlab results.

Key words: configure, fuzzy self-tuning PID, mold level control, rule of fuzzy control, simulation of Matlab

CLC Number:

TP13

GUO Chenglin, JIANG Ripeng, LI Xiaoqian, LI Ruiqing, ZHAN Lihua. Mold Level Control of Large Size Ingot Based on Fuzzy Self-Tuning PID[J]. Journal of Mechanical Engineering, 2018, 54(22): 212-217.

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Mold Level Control of Large Size Ingot Based on Fuzzy Self-Tuning PID

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