English

Not applicable.

Student is able to:
- explain origin of chosen low-frequency disturbances,
- identify low-frequency conducted disturbance sources,
- describe cases of electromagnetic interference,
- quantify consequences and affects,
- describe propagation of low-frequency conducted disturbances in principles,
- discuss general mechanisms to ensure electromagnetic compatibility,
- specify rules, methods, techniques and devices for mitigation of causes and consequences of electromagnetic interference in the field of low-frequency conducted disturbances,
- name measurement procedures of voltage quality characteristics,
- describe voltage quality characteristics in detail,
- define voltage (power) quality according to the current standards,
- select appropriate measurement instruments in order to perform power network analysis and voltage quality monitoring.

General knowledge in electrical power engineering is expected, especially in the field of electrical power distribution, power electronics and converters, measurement and signal processing theory, respectively. In general, the subject knowledge on the Bachelor´s degree level is requested.

Not applicable.

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations. Techning methods include lectures, numerical exercises, homeworks and computer and practical laboratories. Course is taking advantage of e-learning (Moodle) system.

Electromagnetic compatibility of power systems, definition and relevance of EMC, compatibility levels, power and voltage quality.
Fundamental Czech, European and international legislative.
Distribution of the disturbance types, summary of backward disturbing influences of electrical appliances to the supply network.
Harmonic distortion. Definition, description, sources, calculations.
Harmonic components propagation, frequency response characteristics of power networks, resonances.
Harmonics presence consequences, Influence on power system apparatus, Voltage distortion.
Measurement of harmonics, compatibility levels, EMC in term of harmonics, harmonics mitigation.
Interharmonic and subharmonic components. Definition, description, origin, sources, consequences, compatibility levels and EMC in terms of interharmonics.
Voltage magnitude and slow changes. Description, mechanism of changes, compatibility level, voltage profiles and their time variations, voltage regulation techniques.
Voltage fluctuations and rapid changes. Definition, description, origin, disturbing effect – lamps flickering, flicker severity measurement.
Voltage fluctuation propagation, compatibility levels, ensuring EMC in terms of voltage fluctuation, voltage fluctuation and lamps flickering mitigation techniques.
Voltage asymmetry. Definition and description, origin and sources, measurement, compatibility level, providing EMC, mitigation techniques.
Voltage events (swells, dips and interruptions). Definition, description and classification, origin, measurement and evaluation.
Voltage events propagation, consequences, immunity of electrical appliances, mitigation techniques and their coordination.
Voltage characteristics. EN 50 160.
Power network analyzers, voltage monitors. Measurement of low-frequency conducted disturbances; voltage and current transducers.

Not applicable.

Aim of the course is to apprise students of power systems electromagnetic compatibility, disturbance types and sources with their backward disturbing influences to power network systems, measurement of low frequency conducted electromagnetic disturbances and related power quality and of ways to providing electromagnetic compatibility in terms of all related disturbances.

The content and forms of course units are specified by a regulation issued by the responsible lecturer and are updated for every academic year. In general, the presence at class is optional except laboratory training, which is mandatory. Missed laboratory training can be accomplished within semester in an alternative date in justified cases, whereas regular letter of apology and agreement with the teacher is required.

Not applicable.

Not applicable.

Dugan, R., et al. Electrical power systems quality. McGraw-Hill, 2003, ISBN 0-07-138622-X (EN)
PQ and EMC lecture presentations (EN)

BOLLEN, H.,J. Understanding Power Quality Problems. Voltage Sags and Interruptions. IEEE Press, John Wiley and Sons, ISBN 0-7803-4713-7 (EN)