Informatics Publishing Limited

Eadala Sarath Yadav ¹, Thirunavukkarasu Indiran ¹, Nikita Shankar ¹

Affiliations
1 DST project, Dept of ICE, MIT, Manipal, IN

Abstract

Background/Objective: Energy consumption of the actuator illustrates the performance of controller on the process. Objective of this paper is to prove how predictive control approach minimizes the energy utilization of actuator in nonlinear process (conical tank level process). Method/Statistical Analysis: Conical tank is divided into three operating regions and model identification using two-point method has been carried out at oneselected operating region. Efficiency of controller is validated by subjecting it with the identified model at all operating regions. Prediction filter which acts as dead time compensation was introduced in cascade with controller. Findings: Simulation and experimental results validates the approach. The effectiveness of the design has been compared with the advanced control schemes. Application and Improvements: This methodology can be implemented in the nonlinear processes with dead time. It can be applicable for the processes where energy consumption of actuator is considered as key objective.

Keywords

FOPDT, Nonlinear Process, Predictive PI, SIMC.

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Eadala Sarath Yadav ¹, Thirunavukkarasu Indiran ¹

Affiliations
1 Department of ICE, MIT, Manipal - 576104, Karnataka, IN

Abstract

Background/Objectives:In this paper a new architecture is followed which is based on manipulating feedback structure for pressure process. Methods/Statistical analysis:This work copes with the research based on anti-reset windup mechanism. Mathematical Modeling of pressure station is carried out using two-point method. Windup action is being complication in FOPDT process, thereforedesigning a controller for such problem is always a big challenge for control engineers. As a part of controller design direct synthesis method has been used.Apart from controller design, architecture of system will also influence the system performance. Tending towards architectural manipulationa new structure has been followed. Findings:Result shows the significance and positive approach towards the proposed model for pressure processin both simulation and real time. Controller action can be optimized in a reliable way and energy utilization of actuator gradually reduced. Applications/Improvements: In some real time nonlinear processes windup action manipulates plant process more than required limit, where process leads to saturation. In such scenarios the proposed approach provide plant to regain its position and act within limits of its boundary.

Keywords

Anti-reset Windup, Architecture Manipulation, FOPDT, PID Tuning,Pressure Station, Servo Mechanism

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Eadalasarath Yadav ¹, Thirunavukkarasu Indiran ¹

Affiliations
1 Department of ICE, MIT, Manipal - 576104, Karnataka, IN

Abstract

Background/Objectives: In this paper a new architecture is followed which is based on manipulating feedback structure for pressure process. Methods/Statistical Analysis: This work copes with the research based on anti-reset windup mechanism. Mathematical Modeling of pressure station is carried out using two-point method. Windup action is being complication in FOPDT process, thereforedesigning a controller for such problem is always a big challenge for control engineers. As a part of controller design direct synthesis method has been used.Apart from controller design, architecture of system will also influence the system performance. Tending towards architectural manipulationa new structure has been followed. Findings: Result shows the significance and positive approach towards the proposed model for pressure processin both simulation and real time. Controller action can be optimized in a reliable way and energy utilization of actuator gradually reduced. Applications/Improvements: In some real time nonlinear processes windup action manipulates plant process more than required limit, where process leads to saturation. In such scenarios the

Keywords

Anti-Reset Windup, Architecture Manipulation, FOPDT, PID Tuning, Pressure Station Servo Mechanism

Full Text