A tantárgyleírás hatályossága
| Subject name (Hungarian, English) |
Villamos energetika
Power Engineering
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Subject code | BMEVIVEAB01 | ||||||||||||
| Subject type | — | ||||||||||||
| Training Level | — | ||||||||||||
| Course types and hours (weekly/semester) |
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| Assessment type | vizsga | ||||||||||||
| Credits | 5 | ||||||||||||
| Subject coordinator |
DR. Raisz Dávid Márk
position: egyetemi docens
contact:
raisz.david@vik.bme.hu
|
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| Responsible department |
Villamos Energetika Tanszék
|
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| Faculty | Villamosmérnöki és Informatikai Kar | ||||||||||||
| Subject website | https://vet.bme.hu/?q=en/content/power-system-engineering | ||||||||||||
| 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
A) Topic of the lectures
1. The role of electric power,
general structure of the power system.
Review of electricity generation, transmission and distribution. Energy
resources, power plant technologies, costs, efficiencies.
Total and electric energy consumption on domestic and international level,
power losses.
Domestic power plants, large power plants in the world.
Electricity transmission, distribution and consumer systems.
2. Analysis of three-phase
symmetrical systems.
Representation of network elements, single-phase representations:
generator, transformer, transmission line, external grid, short-circuit power,
consumer. Analysis of three-phase networks under symmetrical conditions,
calculation of networks with multiple voltage levels, use of per units.
Three-phase short-circuit.
3. Asymmetrical operation of the
network
Basic of symmetrical components. Criterion of symmetry, effect of
asymmetry. Basic modelling of negative and zero sequence networks. Role of the
return conductor. Asymmetries caused by electric traction. Calculation of
three-phase networks under asymmetrical conditions. Harmonic modelling of
networks.
4. Star point earthing methods
Methods of earthing the star point and their effect on voltage rise,
insulation level and ground currents during ground faults. Review of the
international practice.
5. Network operations
Voltage drop and power conditions of a feeder, loading, voltage profile.
Connection between voltage and reactive power, decrease of voltage drop and
power losses. Surge impedance power of transmission lines.
6. Control of power systems
Balance of powers, basic functions of operation, changes of demand, control
of power and frequency. Limits of power transmission. Voltage and synchronous
stability. Basics of voltage and reactive power control. FACTS. Effects of
distributed generation and renewable sources on grid stability and control.
7. Requirements of power supply
quality
Power quality characteristics (frequency, voltage change, swings, sags,
asymmetry, harmonics). Quality and reliability of supply. Principles of
protection, fault detection.
8. Electric and magnetic fields
of power networks and devices.
Field of overhead lines and cables, means of reduction. Magnetic field of
equipments. Physiological effects of electromagnetic fields, health limits.
Aspects and limits of EMC.
9. Price of electricity, tariff
systems, basic concepts of electricity markets.
10. Current development directions
of the power industry
Concept of smart grids (network elements, operation, control). Smart
metering. Demand-side management. Grid effects of e-mobility.
B) Topics of seminars:
(1) Representation of network
elements under symmetrical conditions. Interpretation and application of
nominal data, illustration of magnitudes. Short-circuit power.
(2) Calculation of networks
with multiple voltage levels, using per units. Analysis of voltage conditions,
calculation of currents, powers. Three-phase short-circuit.
(3) Application of symmetrical
component transformations. Determining symmetrical components of asymmetrical
systems, calculation of phase quantities. Line and phase voltages. Sequence
representation of networks.
(4) Calculation of voltage
drop in case of radial supply. Reactive power compensation. Calculation of
power losses.
(5) Three-phase low-voltage
supply in case of balances and unbalanced load, calculation using phase quantities
and symmetrical components. Determining currents, voltages and powers with and
without null conductor.
(6) Calculation of symmetrical
short-circuit (single-phase-to-ground) with symmetrical components. Bauch
paradox. Role of delta windings of transformers.
(7) Current and voltage
asymmetry of single-phase traction load, supplied by line voltage.
C) Topic of laboratories:
Topics of laboratories are matching the topics of lectures.
Learning outcomes
Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:
Knowledge
No learning outcomes recorded.
Skills
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Attitudes
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Autonomy and responsibility
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Oktatási módszertan
Tanulástámogató anyagok
Not provided.
Recommended preliminary knowledge for completing the subject
General rules
Assessment methods
In-term assessments
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Weight of in-term assessments
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Exam-period assessments
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Weight of exam elements
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Grade calculation
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Attendance requirements
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Rules for retake and resubmission
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Short description
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Detailed description
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Recommended courses
Workload to complete the subject
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Validity of subject requirements
Curriculum placement
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