Electrical Energy Systems

Presentation

The main objective of this course is to develop the capacity of analysis and design of three phase systems from the production to the transmission and distribution of electricity:

Part of this Programme

Electrotechnical Engineering

Level of Qualification|Semesters|ECTS

| Semestral | 6

Year | Type of course unit | Language

3 |Mandatory |Português

Code

ULHT46-1-3010

Recommended complementary curricular units

• Calculation
• Circuit Analysis
• Electromagnetism

Prerequisites and co-requisites

n/a

Professional Internship

Não

Syllabus

1. Power sources and electrical power systems.
2. Historical evolution of electric power systems.
3. Fundamental concepts of electric power systems.
4. Operational Considerations.
5. Characterization and determination of the electrical parameters of the power transmission temples (longitudinal resistance and inductance, transverse admittance and capacity); Long line equations; Modeling of lines by diport and equivalent circuit in Pi; Voltage and current profiles along the lines; Power Limit
6. Introduction to steady state power systems. Brief introduction to the criteria underlying the energy flow equations.

Objectives

A) Ability to understand the historical evolution of electric power systems and the reasons that motivated the current state of the art.
B) Ability to identify the constituent elements of power generation and distribution systems, as well as the ability to use the respective representation symbology.
C) Ability to analyze three-phase electrical systems, identifying the main advantages and particularities of this type of systems.
D) Ability to analyze and determine electrical parameters of power transmission lines
E) Capacity of electrical sizing of transmission lines and their modeling
F) Ability to analyze local and global technical problems associated with power generation and transmission

Teaching methodologies and assessment

There are two types of evaluation:
Continuous assessment - two exams, during the regular class period, each one weighing 40% in the final evaluation. The evaluation obtained in the laboratory component, with a weight of 20%, also contributes to this modality. It should be noted that, in this aspect, approval is only possible if the average obtained in both written frequencies is greater than or equal to 10 values, and there is also the possibility of resorting to a Global Test.
Exam assessment - scores the highest rated exam grade. There is an exam season to which all enrolled students may have access and a special season to which only students who meet the criteria for access to the speciat season, as defined in the assessment rules, may have access.

References

• Apontamentos de Sistemas de Energia Eléctrica - Hugo Marques (2016/2017).
• Power System Analysis and Design; J. D. Glover, M. S. Sarma, T. J. Overbye; Fift Edition - Cengage Leaming.
• Power Systems Analysis; A. R. Bergen - Prentice-Hall.
• Redes de Energia Eléctrica - uma análise sistémica; J. P. S. Paiva IST Press.
• Power System Analysis; J. J. Grainger and W. D. Stevenson - McGraw-Hill.
• Electric Energy Systems Theory: an Introduction; O. l. Elgerd - McGraw-Hill.

Office Hours