AUTOMATIC CONTROL
Stampa
Enrollment year
2020/2021
2021/2022
Regulations
DM270
ING-INF/04 (AUTOMATICS)
Department
DEPARTMENT OF ELECTRICAL,COMPUTER AND BIOMEDICAL ENGINEERING
Course
ELECTRONIC AND COMPUTER ENGINEERING
Curriculum
PERCORSO COMUNE
Year of study
Period
1st semester (27/09/2021 - 21/01/2022)
ECTS
12
Lesson hours
154 lesson hours
Language
Italian
Activity type
WRITTEN TEST
Teacher
TOFFANIN CHIARA (titolare) - 2 ECTS
MAGNI LALO - 10 ECTS
Prerequisites
Knowledge acquired in the courses of Mathematics, Geometry and Algebra, Mathematical Methods, Theory of circuits, Physics I.
Learning outcomes
The course aims to provide students with the basic elements for the analysis and control of dynamic systems. After an introduction in which highlights the fundamental problems of the automatic control and the importance of mathematical models for the study of dynamical systems, the main results concerning dynamic systems in continuous time are introduced. Particular attention is given to "state concepts, stability, controllability, observability". The study of linear time invariant dynamic systems is then conducted in the domain of the Laplace transform, by introducing the concepts of "transfer function, block diagrams, frequency response". In the second part of the course it is introduce the problem of how to act on the input variables of a system, suitably described by a mathematical model, to achieve a particular behavior of the process. The main criteria for analysis and control synthesis for linear systems with a single input and a single output are introduced. It is given special attention to stability, noise attenuation and reference tracking. At the end of the course the student will be able to formulate and solve a control problem for systems with one input and one output using the techniques developed in the frequency domain. The course is complemented by a series of physical exercises during which various systems (electrical, mechanical, hydraulic, etc.) are described in precise mathematical terms and analyzed by applying methods learned in class.
Course contents
Continuous time dynamic systems.
Classification of dynamic systems, equilibrium, linear systems, linearization, stability.
Continuous time invariant linear systems.
Equilibrium, stability of nonlinear systems. Reachability, observability and canonical decomposition.
Transfer Functions
Definition and properties, representation and parameters, step response, realization.
Block diagrams.
Frequency response.
Identification of the frequency response, Bode diagrams.
Analysis of continuous-time control systems
Control in the neighbourhood of an equilibrium. General feedback control diagram. Control system nominal and robust stability. Bode criterion. Polar and Nyquist diagrams. Nyquist criterion, gain margin and margin phase, sensitivity analyzes.
Summary of continuous-time control systems
Requirements and specifications, methods of synthesis, stabilizing networks.
Root locus.
Industrial controllers
Model and industrial implementation of PID controllers (Proportional-Integral-Derivatives).
Simulation and control with the help of Matlab / Simulink.
Teaching methods
Theoretical face-to-face lectures, blackboard exercises, Matlab exercises on the computer, and an exercise conducted on a laboratory process are provided.