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Paolo Bolognesi

Contatti
Dipartimento di Sistemi Elettrici e Automazione
Facoltà di Ingegneria, Università di Pisa
Via Diotisalvi, 2
56126 PISA, ITALY
More informations
Website
Telefono
+39-050-2217-309
Fax
+39-050-2217-333

Personal Information


Paolo Bolognesi was born in Viareggio (Italy) in 1967.

After attending the Laurea in Ingegneria Elettrotecnica (~ M.Sc. in Electrical Engineering) graduate course at University of Pisa - Italy, he graduated with honors in 1995 developing a research thesis concerning the general theory of local spectral approximation methodology and its application to the design of steady-state local modulation techniques for static converters.

He earned then his Dottorato di Ricerca (~ Ph.D.) degree in Automation and Industrial Robotics - Power Electronics curriculum - in 1999 at University of Pisa, Department of Electric Systems and Automation; his doctoral thesis concerned the theory of structural harmonic elimination methodology and its application to the design of steady-state global modulation techniques for static converters.

He joined then the Department of Electrical Systems and Automation of University of Pisa as Assegnista di Ricerca (~ post-doc Research Fellow), developing his previous work in the field of power electronics and beginning to be interested in the study of electrical machines while also actively participating in various projects in the fields of innovative electric and hybrid vehicles.

In 2001, he finally obtained a tenure track position at the University of Pisa as Ricercatore (~ Assistant Professor) in the Electric Machines, Power Electronics and Electrical Drives group. In 2004 his position was definitely confirmed as permanent at the Department of Electric Sytems and Automation.


Research Interests


Electric Machines

  • Theoretical generalized analysis of electromechanical devices
  • Analytical circuital modeling of common electric machines
  • Mid-level modeling and simulation of electric machines using the equivalent network approach
  • FEM electromagnetic and thermal modeling and simulation of electric machines
  • Conceiving, analysis and design of conventional and innovative machines

Power Electronics

  • Unconventional modulation methods, mainly for steady-state control of hard-switched static converters
  • Power quality: grid/load interface converters, mains-extension converters, active filters
  • Innovative converters configurations
  • Real-time control of static converters and drives via analog circuits and digital microcontrollers-DSP using Assembler programming

Electrical Drives

  • Control of common and unconventional electric machines via static converters
  • Integrated design of electric machines, static converters and drive control for specific applications


Applications

  • High speed microturbine generation systems for Hybrid Electric Vehicles
  • Energetic and functional simulation of hybrid-electric and purely electric road vehicles

Courses

Since 2002, he was appointed to teach Dinamica delle Macchine Elettriche e Azionamenti Elettrici II (Dynamics of Electric Machines and Electrical Drives II) constituting a fundamental course within the Laurea Specialistica in Ingegneria Elettrica (~ M.Sc. graduate curriculum in Power Electrical Engineering) offered by the Faculty of Engineering of the University of Pisa.

This course, granting 12 credits (over 180 to be earned to graduate), includes 108 hours of classroom lessons spanning over both the first semester (October-December) and second semester (March-May) of each academic year.

The course is mainly focused on the modeling and analysis of Electric Machines including the basic control strategies, addressing the foliwing aspects:

  1. generalized dynamic modeling of mechanical systems using the Lagrangian approach;
  2. generalized electromagnetic and electromechanical modeling of generic (multi-phase, multi-degree-of-freedom) electro-magneto-mechanical devices basing on circuital
  3. approach and energy conservation principle, using alternatively currents or fluxes as magnetic state variables;
  4. application of generic homogeneous uniform pseudo-linear parametric orthonormal transformations to the above generalized model of electromechanical devices;
  5. magnetic analysis of generic long-drum-type electric machines mostly assuming linear magnetic operation and negligible local perturbations, aimed to determine the basic functions to be used in the generalized analysis; simplified expressions adopting the sinusoidal approximation;
  6. sinusoidal linear modeling of permanent magnets synchronous brushless machines bassing on the above results; fundamental control criteria and operational constraints for isotropic and anisotropic machines;
  7. sinusoidal linear modeling of synchronous machines without and with damping circuits; fundamental control criteria and operational constraints for isotropic and anisotropic machines; model extension to consider saturation;
  8. sinusoidal linear modeling of synchronous machines without and with damping circuits; fundamental control criteria and operational constraints for isotropic and anisotropic machines; model extension to consider saturation;
  9. sinusoidal linear modeling of induction machines with wound and squirrel-cage type rotors; fundamental control criteria and operational constraints;
  10. overview of unconvetional machines and drives: variable reluctance, step,

A minor part of the course is also dedicated to selected arguments in Power Electronics:

  1. classification of static converters, switching cells, power components, suorce; equivalent characteristics of interconnected switching cell;
  2. forbidden and permitted states of converters; general matrix structure of direct converters;
  3. modulation: principles; spectral approximation criteria;
  4. global spectral approximation: structural properties and elementary operations, classic harmonic elimination and optimization;
  5. local spectral approximation: general properties; generalized PWM, typical spectra of fixed-frequency methods, carrier selection criteria, overmodulation; fixed-interval methods and related spectra; basic SVM variants;
  6. overview of advanced solutions: indirect converters, multi-level inverters, soft switching and resonat converters, conversion systems.

Websites