Open AccessPID Controller Design for Tito Processes Based on IMC and Smith Predictor Configuration
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.b1198.0782s319
Subject(s) - pid controller , control theory (sociology) , smith predictor , variable (mathematics) , set point , servo , controller (irrigation) , set (abstract data type) , control engineering , process (computing) , internal model , computer science , process control , control (management) , engineering , mathematics , temperature control , artificial intelligence , mathematical analysis , agronomy , biology , programming language , operating system
This paper describes the design of Proportional-Integral-Derivative (PID) controller for two variable processes where the two variables need to control. Design of controllers for such a process is too difficult than single variable processes because of interrelations between the two variables present in the system. Hence, the design approach should include the interrelations of the variables to achieve better performance of the processes. In addition to this, the time delay of the processes is also considered and Smith Predictor (SP) configuration is used to reduce the delay in the processes. For the resultant reduced time delay processes, an IMC approach is used to design PID controller. The proposed control system improves both the servo (set point tracking) and regulatory (disturbance rejection) performance of the system. The proposed configuration is also validated using a case study. The simulation results are presented and compared with the other similar approaches to show the efficacy of the proposed method.