PID multivariable tuning system using BLT method for distillation column

International Conference on Process Engineering and Advanced Materials 2018

Biyanto, Totok Ruki^1 ; Sordi, Nurul Atiqah^2 ; Sehamat, Nurulsapika^2 ; Zabiri, Haslinda^2

Department of Engineering Physics, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, East Java

60111, Indonesia^1

Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak Darul Ridzuan

32610, Malaysia^2

关键词: Advanced control;    Comparative studies;    Controller parameter;    Decentralized PID controller;    Integral absolute errors;    Multi-input multi-output system;    Process industries;    Proportional integral derivative controllers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/458/1/012052/pdf
DOI  :  10.1088/1757-899X/458/1/012052

来源: IOP

【 摘 要 】

Most of the process industries are handling Multi-Input-Multi-Output (MIMO) system by using the classical Proportional-Integral-Derivative (PID) controller although there are wide researches in advanced control techniques. However, finding a good value for the controller parameters might be very challenging and best tuning approach need to be considered to obtain a better performance. In this paper, biggest-log modulus (BLT) tuning method is adopted to tune decentralized PID controller based on 2x2 MIMO system and the effectiveness of the tuning method is observed. A comparative study on the settling time, overshoot and integral absolute error (IAE) are evaluated when a step change in u1, u2 and disturbance is introduced to the system. The simulation result demonstrates that BLT method has a better performance for a disturbance change response compared to set point change response.