87260 - Dynamics and Control of Energy Systems m

Learning outcomes

At the end of the course the student posesses the basic skills to study the dynamic behavior (over time) of an energy system. Specifically, he learns how: 1) describe an energy system using mathematical models; 2) study its behavior in terms of stability and response to external stresses; 3) define control strategies in order to condition the response to improve its quality and compliance with technical specifications.

Course contents

The course includes two parts, an introduction to the classical control theory and application to energy systems

Mathematical study of control systems.

Definition of SISO LTI system.

Laplace transform. Inverse Laplace transform.

Stability analysis for a system. Routh stability criterion.

Frequency response of linear systems: Bode diagrams, Nyquist plot

Open and closed-loop systems: Definition and evaluation of permanent errors. Definition of margin of phase and amplitude.

Stability of a closed-loop system: Nyquist stability criterion. Root Locus.

Compensation of the disturbances in feedback systems by means of lead and lag Compensators and standard regulators.

Feedback control design.

Energy systems

Modeling with lumped parameters.

Hydraulic, mechanical and thermal systems and components.

Application of control theory to power plants (steam turbine, hydraulic turbine, turbogas), cogeneration plants, heat production plants, internal combustion engines

Readings/Bibliography

Giua A., Seatzu C., "Analisi dei sistemi dinamici", Springer-Verlag

Penati M.E., Bertoni G., Simonini S., “Automazione e Sistemi di Controllo”, Progetto Leonardo-Esculapio

Marro Giovanni, “Controlli Automatici”, Zanichelli

AA.VV., “Dinamica e controllo delle macchine a fluido”, Edizioni Pitagora.

AA.VV., “Servocomandi e regolazione”, Edizioni Pitagora.

Notes and supplemetary materials on https://virtuale.unibo.it/

Teaching methods

Frontal teaching lessons in the classroom, mainly with the help of the blackboard, related to all the topics in the program.

During the course will be presented examples, exercises and practical applications using openSource software (eg Octave, Scilab, python, Hopsan) or commercial (such as Matlab / Simulink, AMESim).

Attendance is strongly recommended for better learning of concepts and notions, but does not affect the final evaluation process.

Assessment methods

The verification is carried out only by means of the final exam, there are no partial tests.

The exam is in written form of the duration of about 3 hours.

• The final consists of two parts:
  a written test to be carried out in the classroom, lasting about 3 hours, based on answers to be carried out in an open form (theme) to questions relating to the theory topics covered in the course
• an analytical / numerical solution of some exercises to be carried out at home. The text of the exercises is made public the day of the written test, the solved exercises must be returned within the second day after the written test.

The exam will be graded over the 0-30 range, with 18 the minimum to pass, 30 the maximum. Honor can be assigned.

If the course is part of the integrated course MISURE, REGOLAZIONE E CONTROLLO DEI SISTEMI ENERGETICI M C.I., the final grade, that will be recorded, will be given by the arithmetic average, rounded to the next whole number, of the marks that the student will have obtained in the courses which make up the integrated course. The final "30 e lode" (30 and honors) is awarded if the candidate has obtained 30 in both modules and the honor in at least one of them.

Teaching tools

Classical chalk and blackboard. Slides and audiovisual supports. PC-based software.

Office hours

See the website of Giulio Cazzoli