37444 - Electrotechnics of Energy Systems M

Academic Year 2017/2018

  • Moduli: Pier Luigi Ribani (Modulo 1) Pier Luigi Ribani (Modulo 2)
  • Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
  • Campus: Bologna
  • Corso: Second cycle degree programme (LM) in Engineering Management (cod. 0936)

Learning outcomes

The main characteristics of the power electronic devices, of the renewable electric power production and its economic aspects will be presented. Some medium and long term scenario for a sustainable electrical energy production will be analyzed.

Course contents

Prerequisites:

The student should be familiar with the contents of circuit theory, electrical machines and electrical plants which are usually presented in the courses of Electro Technique (for non-electric/electronic engineering students) of the School of Engineering.

Program:

Systems for Electric energy use and control. The structure of the electric power systems: main characteristics of the italian and european power grid. Electric energy transmission with d.c. and a.c. technologies. Power electronics (inverter, rectifier, chopper, frequency converter).

Solar to electric power conversion. Solar radiation characteristics. The photovoltaic conversion: operating principle, fabrication technologies and electrical characteristic of photovoltaic cells; MPPT; photovoltaic systems  and their connection to the power network (CEI-11-20 norm). Concentrating thermodynamic solar converters (CSP). Economical aspects of solar to electric energy conversion.

Wind to electrical energy conversion. Main components of a wind generator. Horizonthal axis wind turbines characteristics (power conversion efficiency, pitch angle, yaw angle). Wind generator with induction generator (squirrel-cage rotor, doubly fed machine) and with syncronous generator (wounded rotor, PM machine); power control and connection to the power grid. On-shore and off-shore plants. Economical aspects of wind to electrical energy conversion.

Main aspects of electrical energy economy, electrical energy storage and "sustainable development". Comparison of the different sources of electrical energy: production cost, environmental aspects and technological limits. Scenarios of development of an energy economy based on renewable energies. Hydrogen economy (production, storage, distribution and use).  Strategic role and operating principle of the main electric energy storage systems (batteries, supercapacitors, SMES, CAES, flywheels, pumping hydro storage systems). Storage systems affordability.

Readings/Bibliography

1. B. Wu, Y. Lang, M. Zargari, S. Kouro, “Power Conversion and Control of Wind Energy Systems”, Ed. John Wiley & Sons, 2011.
2. K. Mertens, “Photovoltaics. Fundamentals, Technology and Practice”, Ed. John Wiley & Sons, 2014.
3. V.S. Bagotsky, A. M. Skundin, Y. M. Volfovich, “Electrochemical Power Sources. Batteries, Fuel cells and Supercapacitors”, Ed. John Wiley & Sons, 2015.
4. G. Zini, “Green Electrical Energy Storage. Science and finance for total fossil fuel substitution”, Ed. McGraw-Hill Education, 2016.
5. M.H. Rashid, "Elettronica di potenza: dispositivi e circuiti", Paravia Bruno Mondadori Editori.
6. M.H. Rashid, "Elettronica di potenza: applicazioni", Paravia Bruno Mondadori Editori.
7. IEA: “Wind Sun and the Economy of Flexible Power System”, disponibile on line all’indirizzo: https://www.iea.org/publications/freepublications/publication/
8. IEA, “Worl Energy Outlook 2016. Part B: Special Focus on Renewable Energies”, disponibile on line all’indirizzo: https://www.iea.org
9. ENEA, “Rapporto Energia-Ambiente 2013”, disponibile on line all’indirizzo: http://www.enea.it/it/pubblicazioni/
10. ENEA, “Le fonti rinnovabili 2010”, disponibile on line all’indirizzo: http://www.studi.enea.it/pubblicazioni/monografie
11. ABB, “Quaderni di Applicazione tecnica N.10. Impianti fotovoltaici” (2013), “Quaderni di Applicazione tecnica N.13. Impianti eolici” (2011) ,disponibili on line all’indirizzo: http://www.abb.it/abblibrary/DownloadCenter
12. Energy & Strategy Group, Politecnico di Milano, “Solar Energy Report” (2014), “Renewable Energy Report” (2017), “Wind Energy Report” (2012), “Energy Storage Report” (2016), “Smart Grid Executive Report” (2014), disponibili on line all’indirizzo: http://www.energystrategy.it/report/

Teaching methods

The course is organized with classroom lessons during which all the topics of the program are analyzed with the support of computer presentations which are online on the web site of the teacher (http://www.die.ing.unibo.it/pers/ribani/ribani.htm).

Assessment methods

The exam consists of an oral test during which the student presents three of the subjects analyzed during the course, one of which is chosen by the student himself. The obtained grade depends on the capability to present the topics in a correct, complete and concise way, with a bit of critical analysis.

Teaching tools

 

Office hours

See the website of Pier Luigi Ribani