RENEWABLE/CONVENTIONAL POWER GENERATION, TRANSMISSION AND HVDC/FACTS

Academic Year 2026/2027 - Teacher: ANTONIO TESTA

Expected Learning Outcomes

The main objective of this module is to provide students with a comprehensive understanding of how the primary types of static power converter used in photovoltaic and wind power generators, as well as FACTS and HVDC systems, operate. The module will analyse the operation of grid-connected inverters of the grid-following and grid-forming types, as well as DC/DC converters for photovoltaic systems and AC/DC converters for wind turbines, both theoretically and through simulations. The same approach will be used to cover thyristor- and IGBT-based converters for FACTS and HVDC applications.

By the end of the module, students will have acquired the skills necessary to evaluate the use of static power converters in photovoltaic and wind power generation systems, as well as FACTS and HVDC systems.

Through analysing practical examples, students will apply their theoretical knowledge to real-world scenarios, establishing a solid foundation of knowledge for their future careers. They will also be encouraged to collaborate and share ideas, thereby improving their problem-solving skills and deepening their understanding of the challenges associated with power converters. This will prepare them to effectively tackle the complexities of modern power electronics.

Course Structure

Lectures are used to convey knowledge and are organized as follows:


1) Lecture notes are outlined: first the main points, then the minor points that elaborate on or explain each main point;

2) Relevant and concrete examples are provided before the lesson, selecting examples that are familiar and meaningful to students;

3) Students can interrupt the lecture to ask relevant questions, make comments, or request a review.

4) Periodic summaries are included throughout the lecture.

5) Lectures begin with a question, a problem, a current event, or something that captures the students' attention.

6) Active learning techniques are used (technological aids, such as multimedia presentations).

7) Simulation sessions are used to test and grasp theoretical concepts.

Required Prerequisites

The students should have a base knowledge of:

- AC three-phase electrical circuits and networks.

- Power converters and electric machines.

Attendance of Lessons

Class attendance of no less than 70% of teaching hours is expected, except as provided for in Article 27 of the RDA and in the Regulations for the recognition of the status of working students, student athletes, students in difficult circumstances, and students with disabilities.

Students are encouraged to attend all class activities because it is assumed that lectures, demonstrations, and discussions facilitate their learning.

Detailed Course Content

- Grid-following and grid-forming inverters, Voltage-Oriented Control, droop control, virtual impedance, virtual   synchronous generator, synchronization, anti-islanding.

- Photovoltaic plant structures, MPPT, control techniques.

- Types of wind turbines, types of electrical generators, torque power and speed control, MPPT.

- Large-scale battery storage systems.

- FACTS systems with thyristors, FACTS systems with IGBTs.

- HVDC transmission, conventional HVDC systems, HVDC light systems.


Textbook Information

Mircea Eremia, Chen-Ching Liu and Abdel-Aty EdrisAdvanced Solutions in Power Systems HVDC, FACTS, and Artificial IntelligenceIEEE Press Wiley20169781119035695
Narain G. Hingorani, Laszlo GyugyiUnderstanding FACTS: Concepts and Technology of Flexible AC Transmission SystemsWiley-IEEE Press19999780780334557
R. Teodorescu, M. Liserre, P. RodriguezGrid Converters for Photovoltaic and Wind Power SystemsWiley-IEEE Press20119780470057513
 Lecture notes

Course Planning

 SubjectsText References
1Power Electronics Technology for Large-Scale Renewable Energy Generation and storage. Control strategies of Grid-Connected Power Converters.R. Teodorescu, M. Liserre, P. Rodriguez. Grid Converters for Photovoltaic and Wind Power Systems. Course notes.
2 FACTS technologiesUnderstanding FACTS: Concepts and Technology of Flexible AC Transmission Systems. Wiley-IEEE Press.Course notes.
3HVDC transmission and technologiesMircea Eremia, Chen-Ching Liu and Abdel-Aty Edris  Advanced Solutions in Power Systems HVDC, FACTS, and Artificial Intelligence.Course notes

Learning Assessment

Learning Assessment Procedures

- Oral exam: 2 or 3 questions on the topics listed in the program,

Examples of frequently asked questions and / or exercises

The student explain how a power conversion system works and describe its possible applications.