RENEWABLE/CONVENTIONAL POWER GENERATION, TRANSMISSION AND HVDC/FACTS
Academic Year 2023/2024 - Teacher: GIACOMO SCELBAExpected Learning Outcomes
The aim of the course is to give the students tools to be able to analyse and understand the
operating principles of the main components of a power system with specific attention to the inverter-based components as well the interactions among the parts when the power system is both in secure and alert operating conditions.
In particular, basic knowledge of the models of generators, transmission lines, loads and main power electronic devices will be provided as well as advanced knowledge of the principal regulations about voltage and frequency variables.
Knowledge and understanding
On successful completion of the module, the student will be able to:
Understand and apply the principles of the main components of a power system and power electronic converters used in transmission systems.
Select suitable characteristics of the main components of a power systems and frequency and voltage regulators in the generators.
Selection of the main active devices, analysis of the power converters and feedback loops.
The students will be able to solve practical design problems and produce technical reports.
Making judgements
Ability to properly evaluate the operating conditions of power systems in steady and transient conditions, considering also the variability introduced by the renewable nonprogrammable sources.
The students will be capable of properly evaluating the performance of various power converter topologies.
Communication skills
Ability to discuss with specialists’ interlocutors, issues related to the power generation from conventional and renewable power sources, analysis of modern power systems with the integration of inverter-based technologies.
Learning skills
On successful completion of the module, the student will be able to:
• identify the main quantities that characterize a power system.
• Calculate the electrical variables in an electrical network.
• know the equivalent models of the main components of a power system.
• Model an electrical network using the models and related parameters correctly.
• Describe the control of the network through the variables P, Q, V, and delta.
• Simulate and evaluate power flows.
• Analyze network conditions that can create problems of instability and insecurity.
Required Prerequisites
The students should have a working knowledge of:
1) ac three-phase electrical circuits,
2) trigonometry, basic calculus, complex numbers, and phasor concepts
Attendance of Lessons
Students are encouraged to attend all class sessions as it is expected that the lectures, demonstrations and discussions will facilitate their learning.
Detailed Course Content
1. Introduction to power systems
2. Method in per unit applied to power systems
3. Models of electrical demand and loads
4. Model of synchronous generators
5. Transmission line parameters: inductance, capacitance, resistance and conductance
6. AC transmission line: Steady state operation
7. Power system analysis: load flow and sensitivity analysis
8. Voltage regulation
9. Frequency regulation
10. Transient stability
11. Programmable power plants: Hydro and thermo
12 Non programmable power plants: wind and photovoltaic
13 HVDC transmission
14 FACTS technologies
15 Power Electronics Technology for Large-Scale Renewable Energy Generation
16 Control strategies of Grid-Connected Power Converters
Course Planning
| Subjects | Text References | |
|---|---|---|
| 1 | Introduction to modern power systems | Class note and powerpoint presentation (provided by the professor). |
| 2 | p.u. method and transformer models in power systems | Class note and powerpoint presentation (provided by the professor). [2] |
| 3 | Models of power system components: Load and demand | Class note and powerpoint presentation (provided by the professor). [2] |
| 4 | Models of power system components: synchronous generators | Class note and powerpoint presentation (provided by the professor). [2], [6] |
| 5 | Fundamental constants of the transmission line: a) resistance and conductance; b) Inductance; and c) Capacitance | Class note and powerpoint presentation (provided by the professor). [6] |
| 6 | Models of power system components: Transmission lines: sinusoidal AC steady state operation | Class note and powerpoint presentation (provided by the professor). [2] |
Learning Assessment
Learning Assessment Procedures
- Oral exam: 2 or 3 questions on the topics listed in the program,
- a final written report on a specific technical or economic problem of the electricity system
Important note: Verification of learning can also be carried out electronically, should the conditions require it.