Scheda insegnamento (lingua inglese)

Scheda insegnamento (lingua inglese)

Stampato il 18.05.2024 ore 22:06

Title

Azionamenti elettrici II
Electric Drives II

Degree

Corso di Laurea Specialistica in Ingegneria Elettronica
Second Level Degree in Electrical Engineering

Year

Teaching Period

Credits

Teacher: Roberto Petrella

Academic year: 2010/2011

Objectives:

The course gives specific skills on the design of AC motor drives. Dynamic behaviour of most important AC motor is analysed. Both conventional and advanced control techniques are applied to synchronous and asynchronous motor drives. A complete design example is carried out by a case study. Principles of EMC for electric drives are also illustrated.

Requirements:

none

Acquired skills:

Understanding the terminology of technical literature;
recognising motors and drives performances;
knowing guidelines for EMC problems and measurements in electric drives;
carring out the design and implementation of an AC motor drive;
knowing rules of thumb and pittfalls of a numerical implementation of control algorithms;
use of electric drives in main industrial applications
recent applications of ac control in renewable energy sources: photovoltaic and wind generation.

Lectures and exercises		hours
Topics	Specific contents
AC electric drives	Introduction to high-performance AC electric drives: classification and main features.	2
Two- and three-level three-phase inverters	Space vectors for the study of of three-phase systems: definitions, coordinate transformations, modulators for two- and three-level three-phase inverters. influence and compensation of dead-times.	8
Three-phase current control	Stationary and synchronous reference frames and control. Predictive and hysteresis control.	2
Permanent magnet synchronous motor drives	Structure of the drive. Dynamical model. Operating regions. Current control. Feed-forward and decoupling. Sensor-less control. Applications.	6
Interior permanent magnet synchronous motor drives	Structure of the drive. Dynamical model. Operating regions. Current control. Feed-forward and decoupling. Sensor-less control. Applications.	6
Synchronous reluctance motor drives	Structure of the drive. Dynamical model. Operating regions. Current control. Feed-forward and decoupling. Sensor-less control. Applications.	4
Induction motor drives	Equations and dynamical model. Direct and indirect field oriented control (FOC). Model reference adaptive control (MRAC). Direct torque control (DTC). Measurement and estimation of parameters.	6
Electric drive design	Design of a (digital) controller for electric drives: timings, real-time constraint and fixed-point numerical representation. Simulation by means of Matlab/Simulink. Implementation by DSP microcontrollers. Analysis of actual motor and drives data sheets.	10
Sensors for electric drives	Current, voltage, position, speed and torque sensors. Principle of operation, classification, features and use.	2
Renewable energy sources	Emergent applications in the field of renewable energy sources: photovoltaic and wind generation systems. Control schemes and features.	4
EMC and acoustic noise in drives	European regulation 61800/3. Acoustic noise measurement - a case study.	2
Total hours for lectures and exercises		52
for exercises only		6
Further educational activities		hours
Labs		0
Tutorials / Seminars		0
Workshops		0
Guided tours		4
		0
Total hours for further educational activities		4
Total hours		56

Type of exam: Written and oral

References:

S. Bolognani, M. Zigliotto, Azionamenti Elettrici, Libr. Progetto, Padova, 1998
L. Bonometti, Convertitori di potenza e servomotori brushless, UTET, ISBN 88-7933-207-4
M.H. Rashid, Elettronica di potenza – Dispositivi e circuiti, Volume 1, 3a edizione, Pearson/Prentice Hall, ISBN 9-788871-923475
J.M.D. Murphy, F.G. Turnbull, Power Electronic Control of AC Motors, Pergamon Press, ISBN 0-08-022683-3, 1988
W. Leonhard, Control of Electrical Drives, Springer, ISBN 3-540-41820-2
N. Mohan, T.M. Undeland, W.P. Robbins, Power electronics: converters, applications and design, John Wiley & Sons, ISBN 0-471-61342-8
P. Vas, Vector control of AC machines, Oxford University Press, 1990
G.R. Slemon, Electric machines and drives, Addison-Wesley, MA, ISBN 0-201-57885-9, 1992
I. Boldea, S.A. Nasar, Electric Drives, CRC Press, 1998
A.M Trzynadlowsky, Control of Induction Motors, Pergamon Press, ISBN 0127015108, Sept. 2000

Additional material or information on line http:// web.diegm.uniud.it/petrella

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