Subject » BMEVIVEMB04
Power System Transients
Hálózati tranziensek
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
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| Subject name (Hungarian, English) |
Hálózati tranziensek
Power System Transients
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| Subject code | BMEVIVEMB04 | ||||||||||||
| Subject type | — | ||||||||||||
| Training Level | — | ||||||||||||
| Course types and hours (weekly/semester) |
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| Assessment type | vizsga | ||||||||||||
| Credits | 5 | ||||||||||||
| Subject coordinator |
DR. Mohos András
position: adjunktus
contact:
mohos.andras@vik.bme.hu
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| Responsible department |
Villamos Energetika Tanszék
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| Faculty | Villamosmérnöki és Informatikai Kar | ||||||||||||
| Subject website | — | ||||||||||||
| Primary curriculum type | — | ||||||||||||
| Direct prerequisites – Strong prerequisite | none | ||||||||||||
| Direct prerequisites – Weak prerequisite | none | ||||||||||||
| Direct prerequisites – Parallel prerequisite | none | ||||||||||||
| Direct prerequisites – Milestone prerequisite | none | ||||||||||||
| Direct prerequisites – Exclusion | none |
Objectives
Programme
Detailed topics of the presentations:
1. Introduction, subject requirements. Role of electromagnetic transients in power system operation and reliability.
2. Transients in electrical engineering practice, overview of the main characteristics of transients. Properties of distributed and concentrated parameter networks.
3. Wave propagation in ideal one phase-ground system, wave reflection and penetration at discontinuity points.
4. Calculation of wave reflections: overview of Bergeron and Bewley methods.
5. Limitations of methods, effect of trapped charge on the success of reclosing. Defenses against trapped charge. Surge protection of substations with cable entry.
6. Cancellation wave, steady-state waves methods. Clearing of short distance faults.
7. Reference circuits: theory of design of simple and complex reference circuits. Effect of waveforms on the accuracy of the reference circuit.
8. Effect of losses on wave propagation. Effect of drift and corona discharge on wave distortion. Wave distortion effect of lossy earth.
9. Wave propagation in two phase-ground and n-phase systems. Physical explanation of modal waves. Derivation of wave processes in a multi-conductor realistic system from the transients of one phase-ground system.
10. Electromagnetic compatibility I: (EMC) concepts, classification of disturbances, propagation modes.
11.Electromagnetic compatibility II: Earthing systems of substations, cable lines, transmission lines, effect of grounding on transient and earth fault potential rise. Review of international practice, methods of calculating earth potential rise. Sectioning transients, substation shielding solutions.
12. Transients in synchronous generators: transient characteristics of three-phase symmetrical short circuits
13. Synchronous generator transients: transient characteristics of asymmetrical short circuits
14. Exam preparation
Detailed topics for the exercises:
1. Investigation of transients of simple circuits with concentrated parameters.
2. Investigation of wave reflections.
3. Application of the Bergeron method.
4. Application of the Bewley method, cancellation wave and steady state waves principles.
5. Establishing reference circuits.
6. Wave propagation in two conductor-ground systems.
7. Transients in electrical machines.
The aim of the subject is to learn about the causes of electromagnetic transients in the electricity system, the physics of the processes and the consequences of transients. The lectures are intended to provide a deeper understanding of the processes that occur during abnormal operating conditions and short circuits, the design of surge protection, and the operation of some advanced solutions of the power system. The exercises aim to introduce methods for building a simplified physical picture and computational procedures and techniques for simulating transients.
Learning outcomes
Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:
Knowledge
No learning outcomes recorded.
Skills
No learning outcomes recorded.
Attitudes
No learning outcomes recorded.
Autonomy and responsibility
No learning outcomes recorded.
Oktatási módszertan
Lectures, exercise (manual and computer-aided examples)
Tanulástámogató anyagok
Online források
Electronic note
Recommended preliminary knowledge for completing the subject
Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
nincs
General rules
Requirements:
During the semester: written test (min. 40% to pass).
In the exam period: written and oral exam.
Additional possibilities:
The midterm test can be repeated once during the semester in the repeat period.
Assessment methods
In-term assessments
No detailed assessments provided.
Weight of in-term assessments
No weights provided.
Exam-period assessments
No detailed assessments provided.
Weight of exam elements
No weights provided.
Grade calculation
No grade thresholds provided.
Attendance requirements
No attendance requirements provided.
Rules for retake and resubmission
Not provided.
Short description
Not provided.
Detailed description
Not provided.
Recommended courses
Not provided.
Workload to complete the subject
No workload breakdown provided.
Validity of subject requirements
Requirements valid from:
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Requirements valid until:
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Curriculum placement
No curriculum placements recorded for this subject version.