Laboratory Stand for Study Process Dynamics and Control

Abstract

The work considers the architecture and automation equipment of the laboratory stand for performing laboratory work related to educational course of process control. The stand architecture was developed in such a way that it is possible to study and solve basic tasks during the development and operation of automated process control systems. Low cost, availability and the possibility of self-assembly have taken into account in the selection of automation equipment. The laboratory stand allows students to designprocess control systems. Installation and connection of basic automation equipment sensors, actuators, signal converters, programmable logic controller. Connection of the touch panel and automated operator station. Study industrial protocol connections and standard programming language for industrial controllers according to the IEC 61131-3 standard. Application of identification algorithm for parameters of objects in accordance to the transientresponse curve in physical process. Exploring algorithms to determine the tuning parameters of PID controllers, including the IMC method, AMIGO, Ziegler-Nichols. Developing a program to collect data from field devices and form control actions for actuating devices. Learning the MQTT protocol and the development environment for dashboards that are used in internet-things technologies. Developing driver for remote access to the equipment of the laboratory stand. It is possible to study the operation of a multivariable control for a SIMO object on a laboratory stand. The laboratory stand has been successfully introduced into the educational process as part of the process control system course. The students solved the set tasks and mastered the necessary competencies. To reproduce the stand and prepare educational course, the necessary documentation, diagrams, 3D models, device drivers for Arduino, industrial controller program code, data collection programs, identification of object model parameters, auto-tuning algorithms for automatic controller parameters can found at: https://github.com/BarashkinRoman/LabStandHydraulic.