course: Electrical Engineering - Power Engineering

teaching methods:
lecture with tutorials
overhead transparencies, Moodle, black board and chalk
responsible person:
Prof. Dr.-Ing. Constantinos Sourkounis
Prof. Dr.-Ing. Constantinos Sourkounis (ETIT), M. Sc. Johnny Chhor (ETIT), M. Sc. Benedikt Spichartz (ETIT)
offered in:
winter term

dates in winter term

  • start: Thursday the 21.10.2021
  • lecture Thursdays: from 14:15 to 15.45 o'clock in HID
  • tutorial Mondays: from 10:15 to 11.45 o'clock in HZO 60


Die Angaben zu den Prüfungsmodalitäten (im WiSe 2020/2021 | SoSe 2021) erfolgen vorbehaltlich der aktuellen Situation. Notwendige Änderungen aufgrund universitärer Vorgaben werden zeitnah bekanntgegeben.
Form of exam:written
Registration for exam:FlexNow
Rooms : HGA 10,  HGB 10
Individual appointments of students to each exam location will be issued by the responsible chair.


The students will master linear time-invariant systems as well as their mathematical description. They will understand the basic principles of the generation of electrical energy from different primary energy resources as well as their most essential properties, advantages and disadvantages. As a result, the students will develop an awareness of social and ethical responsibility concerning the usage of non-renewable energies. They will have an overview over the relationships between relevant components of the electricity supply and understand the resulting structures. The students will master all of the essential electrical and electromechanical devices and machines based on the physical understanding of the derived models and they will be able to apply them based on appropriate working techniques. This includes the basic mathematical equations which link the physical quantities of the devices and machines. The profound knowledge about electrical devices and machines (ranging from mW to MW), which are relevant to and required in many technical fields, will enable the communication with specialist of different subjects. The imparted technical knowledge about the application of energy is particularly important in view of the current discussion on the energy and climate issues. It enables the students to make reasonable statements in public discussions and represent reliable positions.


Following the lectures of "General Electrical Engineering 1 and 2" this lecture connects with the discussion on linear time-invariant systems. As an introduction to power engineering the lecture gives an overview on the electricity supply, covering the generation, transmission (over long distances), distribution (over short distances) and the use of electrical energy. The mechanisms and operating principle of the most important types of power plants, particularly corresponding to its primary energy source (coal, gas, oil, nuclear power, water, wind, solar, etc.) is shown. In this context, the term of energy and efficiency are defined. The basic principles of the transmission and distribution of electrical energy by means of a three-wired system (“three-phase currents”) as well as essential mathematical concepts (e.g. symmetrical components) are explained. Then, the lecture turns to significant electrical and electromechanical devices and machines, which are relevant to the generation, transmission, distribution and the use of electrical energy. First, the fundamental electromagnetic principles of how machines are operating, will be discussed. A detailed description of the transformer, which is the most important asset for the transmission and distribution of electrical energy, as well as of the DC machine, for which the fundamental electromagnetic principles can be clearly shown, will be given. In this context, the generation of DC voltages from an AC or three-phase voltages is also discussed, for which power electronics components are being applied. In the last lecture sections, the principle of three-phase machines based on a rotating magnetic field are introduced. The operation behavior of the synchronous generator, which plays a significant role in the generation of electrical energy and formation of the power grids, as well as the induction machine with fixed and variable grid frequency are presented.



recommended knowledge

Proficiency in the contents of the lectures "General Electrical Engineering 1 and 2"


Please take notice of following announcements:


In WS 2020/21 the lectures and exercises of the course will be held in digital form via Zoom at the times indicated above.

The educational materials and the login data for the zoom meetings can be found in Moodle. Participants in the course must therefore register in Moodle.

The course name and the login data are:
Name: "Allgemeine Elektrotechnik 3 - Energietechnik (141086-WiSe20/21)"
Password: zm2d4_aet3

The login in the course is unlocked on 18.09.2020. To get full access to the available documents and information, you have to accept the Privacy Policy and the Terms of Use for Zoom available in the Moodle course.