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Applied Research of Compound Control System of Feed Preheating Temperature in Aromatics Extraction Column
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SHEN Ningbo1**，XING Changning2，CAO Yubo1*
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1. School of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin City 132022, China；
2.Changchun Office ， Hangzhou Hollysys Automation Co., LTD., Changchun 130051, China
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Abstract
In order to control the preheating temperature of aromatic extraction column, a compound control strategy combining feedforward and feedback was adopted. The mathematical model of the controlled object was obtained by system identification of the production data, and the simulation test of the mathematical model was completed by Simulink software.Based on Siemens S7-300 series PLC, the PLC program of compound control scheme was written by STEP7 software, which provides reference for practical engineering application.
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Published: 25 November 2023
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