Course code ETeh4050

Credit points 3

Basics of Automatics

Total Hours in Course120

Number of hours for lectures24

Number of hours for seminars and practical classes16

Number of hours for laboratory classes8

Independent study hours72

Date of course confirmation16.12.2015

Responsible UnitInstitute of Energetics

Course developer

author prof.

Aigars Laizāns

Dr. sc. ing.

Course abstract

The aim of the study course is to acquire the principles of automatic control of processes and equipment in the field of bioeconomy in connection with efficient energy use are presented. Students acquire knowledge of computerized control systems construction and operation of production, process, as well as skills in compiling algorithms for automatic control systems (ACS), development of algorithms for ACS elements, modeling and optimization of their characteristics and transition processes. Knowledge about the peculiarities of application of different types of automatic control principles (P, PID, adaptive control, etc.) for agricultural production objects efficient management is gained as well.

Learning outcomes and their assessment

Knowledge - on the ACS structure, basic elements, operating principles of the technological objects and processes of the bioeconomy sector, on the criteria for the evaluation of the quality of the ACS operation and the justification for the selection. Knowledge are assessed through control test and final exam;
Skills - to create ACS operation algorithms and mathematical models, to use simulation programs (Matlab Simulink and similar) for development and modeling of ACS systems, to test technological object transition processes and AVS interaction, to compile practical ACS (laboratory) models. Skills are assessed through practical works, laboratory works and independent works (home asignments), as well as in control test and final exam;

Competence - to evaluate the quality of ACS operation, factors influencing the choice of ACS type. Competences are assessed in control test and final exam.

Course Content(Calendar)

Full time intramural studies:
1. Introduction to automation. Automatic control systems (ACS) and control objects in energy, agriculture and wood processing. (lect. - 2h, practical work - 1h)
2. Principles of automatic control: program based; perturbation based; deviation based; combined and adaptive control. (lect. - 1h, practical works - 1h, lab.w. - 1h)
3. Automation of production processes. Tasks and hierarchy of computerized control. Economic justification of automation application. (lect. - 2h, practical work - 1h)
4. Static properties of ACS components. Characteristics of linear, nonlinear and static devices. (lect. - 1h, practical works - 1h, lab.w. - 1h)
5. Static equations. Modeling of static characteristics. (lect. - 2h, practical work - 1h)
6. ACS component connection modes and properties. - series, parallel and feedback enabled (lect.- 1h, practical works - 1h, lab.w. - 1h)
7. Dynamic processes in ACS. Methodology and examples of dynamics equations for static devices. Time constant meaning in ACS. (lect.- 2h, practical work - 1h)
8. Operator method for studying ACS application in dynamic processes. Laplace transform. Operator equation and transfer function. (lect. - 1h, practical works - 1h, lab.w. - 1h)
9. Analysis of transition processes of ACS components. Thermistor and thermocouple modeling. (lect. - 2h, practical work - 1h)
10. ACS components, their original equations, operator equations, transmission functions and transition processes (simulation) (lect. - 1h, practical works - 1h, lab.w. - 1h)
11. Inertia-free object (frequency converter), first-order inertial object (heating element), integrating and differentiating RC circuit. (lect. - 2h, practical work - 1h)
12. Second order inertial object (drying chamber), oscillation stage (centrifugal regulator), integrating actuator. Transport delay (pipeline (lect. - 3h, practical works - 2h, lab.w. - 1h)
13. AVS operation modes, their simulation models - two-position, P, PI, PID, adaptive control (lect. - 3h, practical works - 3h, lab.w. - 1h)
14. Error in ACS applications. ACS frequency characteristics, stability criteria and stability improvement. (lect. - 1h)
Part time extramural studies:

All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar

Requirements for awarding credit points

Positive grade if:
All 8 laboratory works have been completed and defended.
Transferred (sent, uploaded to e-learning environment) 2 practical works and 2 independent works
Passed the control test in the middle of the study course.

Passed the exam

Description of the organization and tasks of students’ independent work

Practical works:
1. Heating element transition process model
2. PID controller in the second level technological object - simulation model
Independent works:
1. ACS application possibilities and trends in the world - essay

2. Evaluation of the quality of application of different types of ACS

Criteria for Evaluating Learning Outcomes

Each practical and individual assignment handed in.(no positive final grade if any of them is missed).
Share of submitted works in the final evaluation:
1. Practical work - passed / failed
2. Independent work - passed / failed
3. Control test in the middle of the study course - 40%
4. Exam at the end of the study course - 60%

Positive grade if at least 40% obtained.

Compulsory reading

1. Šnīders A. Automātiskās vadības pamati: mācību grāmata. Jelgava: LLU, 2008. 159 lpp.
2. Šnīders A., Leščevics P., Galiņš A. Tehnoloģisko iekārtu automatizācija: mācību-metodiskais līdzeklis. Jelgava: LLU, 2008. 60 lpp.

3. Dzelzītis E. Siltuma, gāzes un ūdens inženiersistēmu automatizācijas pamati. Rīga: RTU, 2005. 414 lpp.

Further reading

1.Šnīders A. Automātisko sistēmu modelēšana: mācību grāmata. Jelgava: LLU, 2008. 136 lpp.

Periodicals and other sources

Žurnāls “Enerģija un Pasaule”. http://www.energijaunpasaule.lv/

Notes

Compulsory course for TF professional higher education bachelor study program Applied Energy Engineering, full-time and part-time studies.