AUTOMATIC CONTROL
Academic Year 2023/2024 - Teacher: Giovanni MUSCATOExpected Learning Outcomes
To give the main concept on the basis of analysis and design of control systems with particular reference to feedback control systems.
Knowledge and understanding
Main topics are: Properties of feedback linear control systems; Design of controllers; Digital control; The course includes also laboratory exercise by using computer tools for the design and analysis of control systems.
Applying Knowledge and understanding
At the end of the course the student will know how to design and analyze single input single output linear feedback control systems.
The student will be able to analyze linear control systems single input-single output and to design analog and digital feedback control systems.
Making judgements
The student should be able to analyze automatic control systems and to distinguish their principal components and the control methods adopted.
Communication skills
Student have acquired the basic language skills of automation and should be able to communicate with technicians, specialised or not, as concern problem connected with automatic control systems.
Learning skills
The students must have acquired basic knowledge in order to continue their studies towards the application of automatic controls in transversal disciplines of engineering and towards the deepening of automation engineering studies.
Course Structure
The course is mainly done by lectures. Part of the course is by exercise by using personal computers and design software as MATLAB.
Should teaching be carried out in mixed mode or remotely, it may be necessary to introduce changes with respect to previous statements, in line with the programme planned and outlined in the syllabus.
Required Prerequisites
Fundamental previous knowledge to better understand course content is the System Theory (Teoria dei sistemi) course.
| Requirement | Course |
| Complex variable functions. differential equations. Systems of linear differential equations. Laplace transform. Zeta transform. | Analisi Matematica, (Calculus), Teoria dei Sistemi (System Theory). |
| Modelling of dynamical system by differential equations. Mechanics. Thermodynamics.. | Fisica 1, 2 (Physics) |
| Analysis of linear dynamical systems. State equations. | Teoria dei Sistemi (System theory) |
| Electrical circuits analysis | Elettrotecnica (Circuit theory) |
Attendance of Lessons
Detailed Course Content
Basic concepts and background.
Main properites of feedback control systems
Design of the compensator
Digital control systems design
Laboratory exercises
Textbook Information
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| Author | Title | Publisher | Year | ISBN |
|---|---|---|---|---|
| N.S. Nise | CONTROLLI AUTOMATICI | CittaStudi | 2013 | 9788825173789 |
| R.C. Dorf | CONTROLLI AUTOMATICI | Pearson | 2010 | 8871926056 |
| Franklin, Powell, Emami-Naeini | Controllo a Retroazione di Sistemi Dinamici Vol.1 e Vol.2 | Edises | 2004 | 8879593080 |
Course Planning
| Subjects | Text References | |
|---|---|---|
| 1 | Modelling of electrical, mechanical, thermal, hydraulic systems. (4 hours) | Teacher's notes, [1, chap 2 e 3] |
| 2 | Non-linear systems linearization (2 hours) | Teacher's notes, [1, chap 2] |
| 3 | Stability, Routh Hurwitz criterions (4 hours, 2 hours E) | Teacher's notes, [1, chap 6] |
| 4 | First and second order models (4 hours) | Teacher's notes, [1, chap 4] |
| 5 | Finite delay systems (1 hour) | Teacher's notes, [1, chap 10] |
| 6 | Sensitivity to Parametric variations (1 hour) | Teacher's notes, [1, chap 7] |
| 7 | Sensitivity to disturbance (4 hours) | Teacher's notes, [1, chap 7] |
| 8 | Nyquist criterion and diagrams (4 hours, 4 hours Ex) | Teacher's notes, [1, chap 7] |
| 9 | Root locus (4 hours, 4 hours Ex) | Teacher's notes, [1, chap 8] |
| 10 | Frequency domain controller design (4 hours , 2 hours Ex) | Teacher's notes, [1, chap 10 and 11] |
| 11 | Root locus design (4 hours, 2 hours Ex) | Teacher's notes, [1, chap 9] |
| 12 | Direct synthesis (3 hours, 1 hour Ex) | Teacher's notes |
| 13 | Design of PID controllers (4 hours, 1 hour Ex) | Teacher's notes, [1, chap 9] |
| 14 | Digital control systems (6 hours, 2 hours Ex) | Teacher's notes, [1, chap 13] |
| 15 | MATLAB and SIMULINK for analysis and design (12 hours Ex) | Teacher's notes, [1] |
Learning Assessment
Learning Assessment Procedures
Written and oral examination.
The written exam consists of a series of exercises to be performed.
The test are exercises on controller synthesis, Stability analysis by using Nyquist criterion and root locus, digital control. Example of the tests can be obtained in the portal STUDIUM.
Usually there are 5 o 6 tests each with maximum mark between 5 and 7, depending from the problem. The test is passed if a mark over 18/30 is obtained.
Learning assessment may also be carried out on line, should the conditions require it.
Examples of frequently asked questions and / or exercises
Oral exam example of questions:
Nyquist criterion. Lag network; Digital control architecture; Tustin formula; Truxal formula; Smith predictor; Pole-zero cancellation;.....