Workshop gl prt exercises-introduction

Name

2013

Peter Kainhofer

Fundamentals of closed-loop control technology

Exercises

Control loop

Workshop GL-PRT ExercisesTraining equipment Page 2 of 51

Fundamentals of closed-loop control technology - Exercises

Training Equipment

Structure of the training equipment Dear students, the exercises of this workshop are designed to teach a better understanding of dy-namical processes. Anywhere in our nature and also more and more in techniques there are dynamical processes. Therefore it is very important to work with models and observe and analyze the time trends.

I want that you learn to understand the relationships between dynamical processes. This dynamical thinking will help you to analyze and solve many complex problems.

Enjoy applying in this practice-oriented workshop. Don´t hesitate to ask if you don´t understand something. It is not important to memorize figures and formulae but to understand dynamical connections.

Learning by doing

Process Control System ABB Freelance

Workshop GL-PRT ExercisesTable of contents Page 3 of 51


Table of contents

1 General ............................................................................................................ 4

2 Chapter 2: The control loop ............................................................................ 7

3 Chapter 3: Continuous controllers ................................................................ 16

4 Chapter 4: Control circuits with continuous controllers ............................... 35

5 Chapter 5: Three-point controller with quasi-continuous behaviour ........... 40

6 Chapter 6: Increasing the control performance ............................................ 46

Workshop GL-PRT ExercisesChapter 2: The control loop Page 4 of 51


1 General The theoretical methods are deepened with practical exercises on a computer.

Follow the instructions of the trainer. Process Control System Freelance: The process control system Freelance works with only one engineering tool: Control builder F. 1.) Hardware structure:



2.) Project Tree:

3.) Operation and monitoring with DigiVis:



4.) Freelance Controller Emulator:



2 Chapter 2: The control loop Recording of the step responses with DigiVis:

Presetting of the Control Loop:



Exercise 2.1: Recording of the step response of a control loop 1st order, T = 10 s Presetting of the control loop: T 10 s Presetting of the controller: Set the setpoint w to 0% Set the controller in Manual mode Set the manipulated variable y to 0% Change the manipulated variable y from 0% to 50%. Monitor the trend. Please insert the trend diagram here

Education

Workshop gl prt exercises-introduction