|
Lecturer(s)
|
-
Janda Zbyněk, Ing. Ph.D.
-
Tesařová Miloslava, Doc. Ing. Ph.D.
-
Tímr Jan, Ing.
|
|
Course content
|
1. Transmission and distribution system, power system control, topical problems. 2. Electrical networks - types, performance characteristics, application 3. Power lines - performance characteristics of overhead lines and underground cables, their comparison and impact on network operation (transmission capability, range of network lengths, network protection) 4. Overhead power lines - parts (conductors, towers, insulators, accessories), trends - ACCR conductors 5. Cables - passive parameters of cables (L, C), application according cable insulation, cable construction, cable designation, cable joints and connectors, cable installation, trends - superconducting cables 6. Electrical substations - role in power system, substation parts, feeder circuit equipment, substation layouts (single, double or triple busbar arrangements), performance characteristics, back-up operation, construction, application 7. Transformers - transformer concept of power system, voltage regulation by tap changers, transformer construction and installation, oil and dry-type transformer application, active and reactive losses of transformers, application of various definitions of transformer ratio, trends - low losses transformers, regulated distribution transformers, phase shift transformers 8. Fault conditions in power system - different system earthing arrangement, performance characteristics, application, impact on network operation and conditions during symmetrical and unsymmetrical faults, voltages and currents during line-to-ground faults or earth faults 9. Short-circuits - time behavior of short-circuit current (detailed analysis of current components for near-by -generator faults, short-circuit current denitions (initial symmetrical, peak, thermal), short-circuit effect reduction, 3-phase short-current calculation (simplified method of equivalent voltage source) 10. Earth faults - detailed analysis of currents and voltages, line-to-ground faults versus earth faults, fault current propagation in networks, calculation of fault current, operation limits for an earthing arrangement 11. Power system protections - fundamental concept (main and back-up protections), principle of indirect protection against overcurrent thermal effect, principles and applications of basic protection relays (overcurrent relays, distance relays, differential and phase comparison relays), autoreclosing 12. Introduction to supply power system design - load categories, maximum demand of supply system, network topology design, conductor and transformer rating, power flows and voltages in simple networks, voltage drop on power line and transformer (vector diagram, equation for voltage drop for inductive and capacitive load, calculations) 13. Power factor correction - fundamentals, benefits, PFC equipment and their location, calculation of compensation power 14. Renewable energy sources and distributed generation - overview, RES and load diagram, voltage and power flows in networks with RES, impact on power system operation and control
|
|
Learning activities and teaching methods
|
- Contact hours
- 65 hours per semester
- Preparation for formative assessments (2-20)
- 15 hours per semester
- Preparation for an examination (30-60)
- 50 hours per semester
- unspecified
- 45 hours per semester
- Contact hours
- 20 hours per semester
|
| prerequisite |
|---|
| Knowledge |
|---|
| to explain fundamental principles of energy conversions |
| to describe technologies of power generation |
| to explain principles of switchgear, to distinguish type of a switch according its switching capability |
| to explain principle of indirect protection against overcurrent thermal effect and to draw up cut-off characteristic of a fuse from heating curve |
| to describe concept of electrical power system, its parts and relation between them |
| to describe operation of power system with regard to neutral earthing |
| to specify passive parameters of overhead power lines and issues that influence them |
| to give reasons for using of conductor transposition, bundle conductors and earthing wires |
| to draw up equivalent circuits of power lines |
| to explain terms: characteristic impedance of transmission line, natural power and charging current of power line, and impact of network operation |
| to explain principle of a transformer, and to distinguish its construction parts |
| to draw up equivalent circuits of transformers, to specify transformer power losses |
| to specify negative effects and types of short-circuit faults |
| Skills |
|---|
| to apply the fundamentals of mathematic for universities |
| to apply symbolic-complex method in electrical circuits |
| to draw up phasor diagram of current and voltage for R, L and C |
| to calculate conductor resistance, complex power in AC circuits, power factor, energy |
| to calculate currents and voltages in simple electrical circuits |
| to formulate equations for active parameters of power line in steady state |
| to extract parameters of transformer equivalent circuit from conditions during no-load and short-circuit operation |
| Competences |
|---|
| N/A |
| N/A |
| N/A |
| learning outcomes |
|---|
| Knowledge |
|---|
| to give reasons for design of Electric Power System (EPS) used in the Czech Republic |
| to compare reliability and other performance characteristics of EHV, HV, MV and LV networks and to give reasons for different way of system earthing and to compare dis-/advantages of system earthing arrangements |
| to compare performance characteristics of overhead power lines and underground cables |
| to identify power line components and to explain their purpose and design |
| to describe parts of substations (buses, branches), configuration and construction od switchgears, equipment in branches, to draw single-line diagram of substations (substation layouts) and back-up operation |
| to describe voltage regulation by means of transformers with tap changer |
| to describe basic procedures for supply system design |
| to explain principle of power factor correction (PFC) and its benefits |
| to draw up time behavior of a short-circuit current with maximum DC part, to analyze parts of a short-circuit current, to give reasons for appearance of the DC part |
| to define short-circuit currents (initial symmetrical, peak, thermal) and to present means for short-circuit effect reduction |
| to describe fundamental concept of power system protection and to explain principles of fundamental protection devices and to review their application in power system |
| to explain principle of power generation in power plant using renewable energy sources, to compare the sources from point of view of efficiency, capacity usage, impact on power system operation (time operation, system control, voltage quality) |
| Skills |
|---|
| to distinguish detail parts of EPS, to find relationship among them and their importance for EPS failure-free operation |
| to review suitability of supply system from the point of view supply reliability, voltage and power conditions in failure-free operation, and short-circuit conditions |
| to draw potential risks and shortcomings of extensive cabelization of the networks |
| to manipulate safety with equipment in branches (branch switching) with respect to its switching capability |
| to identify the way of neutral earthing on the basis of voltage and current conditions during a line-to-ground fault |
| to calculate power, current and voltage conditions in simple networks (one-side fed radial networks) in steady and fault states (3-phase short circuit or earth fault), including networks connected by transformers |
| to estimate impact of network elements on value of short-circuit current and to consider possibilities of its reduction |
| to size cross-section of a conductor and to make initial proposal of transformer installed capacity |
| to calculate output of PFC device |
| Competences |
|---|
| N/A |
| teaching methods |
|---|
| Knowledge |
|---|
| Lecture |
| Multimedia supported teaching |
| Self-study of literature |
| Skills |
|---|
| Practicum |
| Competences |
|---|
| Lecture |
| Self-study of literature |
| Practicum |
| assessment methods |
|---|
| Knowledge |
|---|
| Combined exam |
| Skills |
|---|
| Test |
| Competences |
|---|
| Combined exam |
| Test |
|
Recommended literature
|
-
Bollen, Math H. J.; Hassan, Fainan. Integration of distributed generation in the power system. Hoboken : John Wiley & Sons, 2011. ISBN 978-1-118-02901-5.
-
Kirtley, James L. Electric power principles sources, conversion, distribution, and use. Chichester : John Wiley & Sons, 2010. ISBN 978-0-470-66717-0.
-
Lakervi, Erkki; Holmes, E. J. Electricity distribution network design. 2nd ed. Stevenage : Peter Peregrinus Ltd., on behalf of The Institution of Electrical Engineers, 2003. ISBN 0-86341-309-9.
-
Mertlová, Jiřina; Noháčová, Lucie. Elektrické stanice a vedení. 1. vyd. V Plzni : Západočeská univerzita, 2008.
-
Orsagová, J. Rozvodná zařízení. VUT Brno, 2015.
-
Schejbal, Konstantin; Mertlová, Jiřina. Elektroenergetika II. 1.část. 1. vyd. Plzeň : ZČU, 1998. ISBN 80-7082-451-4(1.
-
Schejbal, Konstantin; Mertlová, Jiřina. Elektroenergetika II. 2. část. 1. vyd. Plzeň : ZČU, 1998. ISBN 80-7082-451-4(2.
-
Štroblová, M. Elektroenergetika - Podklady pro cvičení. ZČU, 1998.
-
Tesařová, Miloslava; Štroblová, Milada. Průmyslová elektroenergetika. Plzeň : Západočeská univerzita, 2000. ISBN 80-7082-703-3.
|