Note from June 29, 2020
Although we do not yet know how long the social distancing related to the Covid-19 pandemic will last, and regardless of the changes that had to be made in the evaluation of the June 2020 session in relation to what is provided for in this learning unit description, new learnig unit evaluation methods may still be adopted by the teachers; details of these methods have been - or will be - communicated to the students by the teachers, as soon as possible.
Although we do not yet know how long the social distancing related to the Covid-19 pandemic will last, and regardless of the changes that had to be made in the evaluation of the June 2020 session in relation to what is provided for in this learning unit description, new learnig unit evaluation methods may still be adopted by the teachers; details of these methods have been - or will be - communicated to the students by the teachers, as soon as possible.
5 credits
30.0 h + 30.0 h
Q2
Teacher(s)
De Jaeger Emmanuel;
Language
English
Prerequisites
Students are expected to master the following skills : knowledge and practical application of electrical and electromechanical converters theory, as they are covered within the courses LELEC1370 and LELEC1310
Main themes
- The topic of voltage disturbances and quality of electric power supply, positioned in the general context of electromagnetic compatibility (EMC)
- Types and characteristics of the main disturbances, disturbance sources, methods of measurement and evaluation, propagation mechanisms, adverse effects, immunity
- Modelling and calculation of electrical power networks (public or industrial) and electrical installations in disturbed operation
- Technical solutions to solve power quality problems
Aims
At the end of this learning unit, the student is able to : | |
| 1 |
In consideration of the reference table AA of the program "master in electrical engineering ", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning:
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The contribution of this Teaching Unit to the development and command of the skills and learning outcomes of the programme(s) can be accessed at the end of this sheet, in the section entitled “Programmes/courses offering this Teaching Unit”.
Content
- Generalities about electromagnetic compatibility and basic concepts used in voltage quality (short-circuit power concept, types of networks - TN, TT, IT ... - Basic concepts of standardization, compatibility levels, immunity levels, general principles of measuring methods, basics of quality statistical analysis, quality indices etc.)
- Reliability and continuity of power supply
- Rapid changes of the load; voltage fluctuations and frequency deviations
- Voltage distortion, harmonics, transients and interharmonics (in the frequency range from 0 to 150 kHz)
- Unsymmetrical three-phase systems (voltage unbalance)
- Voltage dips and short interruptions
- Voltage swells and overvoltages
- For each family of studied phenomena: sources and disturbances generating mechanisms, modelling, special techniques of measurement and evaluation, propagation of disturbances in the network, adverse effects, immunity of sensitive loads, choice of technological solutions (at the source, in the network or at the level of disturbed installations).
- Reliability and continuity of power supply
- Rapid changes of the load; voltage fluctuations and frequency deviations
- Voltage distortion, harmonics, transients and interharmonics (in the frequency range from 0 to 150 kHz)
- Unsymmetrical three-phase systems (voltage unbalance)
- Voltage dips and short interruptions
- Voltage swells and overvoltages
- For each family of studied phenomena: sources and disturbances generating mechanisms, modelling, special techniques of measurement and evaluation, propagation of disturbances in the network, adverse effects, immunity of sensitive loads, choice of technological solutions (at the source, in the network or at the level of disturbed installations).
Teaching methods
- The course consists of lectures that aim to describe the general context, key concepts, methods of calculation and evaluation as well as give and discuss some specific technological information.
- Practical sessions (supervised exercise sessions) are organized. These exercises can make use of dedicated software tools
- Practical sessions (supervised exercise sessions) are organized. These exercises can make use of dedicated software tools
Evaluation methods
Students are assessed during an oral examination comprising:
Homework is proposed during the semester and is evaluated. It counts for half of the points of the final grade, provided that the student has obtained at least 50% of the points for the exam.
In case the student does not obtain at least 50% of the points for the exam, the final grade is equal to the grade obtained for the exam.
- The resolution of a problem, sketching a realistic but inevitably simplified situation compared to a complex real industrial case (numerical exercise, aiming primarily to assess understanding phenomena, mastering modelling and computational techniques, together with the fast quantified assessment of a situation)
- A discussion realizing a broad sweep of the whole matter, starting from relatively general questions or typical industrial case studies.
Homework is proposed during the semester and is evaluated. It counts for half of the points of the final grade, provided that the student has obtained at least 50% of the points for the exam.
In case the student does not obtain at least 50% of the points for the exam, the final grade is equal to the grade obtained for the exam.
Other information
It is recommended to have previously completed the course LELEC2520 or an equivalent
According to the opportunities and practical availability, the course can be completed by a technical visit and / or seminars given by experts from industry
According to the opportunities and practical availability, the course can be completed by a technical visit and / or seminars given by experts from industry
Online resources
Bibliography
Transparents du cours, recueil de documentation, liens sur Moodle
Faculty or entity
ELEC
