|
Lecturer(s)
|
-
Tesařová Miloslava, Doc. Ing. Ph.D.
|
|
Course content
|
Lectures: 1. Concept of electrical power system, its parts and relation between them, power system control, electrical networks - types, performance characteristics, neutral earthing arrangement and application, construction and performance characteristics of network elements 2. Transmission system - performance characteristics, cooperation with adjacent power systems, trends and topical problems 3. Distribution system - performance characteristics according to voltage level, cooperation with transmission system, trends and topical problems 4. Industrial electrical grids - specifics, connection of industrial plants to distribution system, basic concept of industrial supply systems, requirements on supply availability, back-up supply, examples of industrial grid topology 5. Fault conditions in power system - concept of power system protection, short-circuit conditions, reduction of short-circuits and their effects, rating of equipment with respect of short-circuit effects 6. Fault conditions in power system - earth faults - detailed analysis of currents and voltages, fault identification and location 7. Power quality - definition, standard EN 50 160, voltage characteristics, causes of voltage waveform disturbances, impact of lower voltage quality on industrial equipment, voltage-tolerance curves 8. Interruptions - causes, indices of continuity of supply SAIDI, SAIFI, MAIFI, incentive-based quality regulation, improvement of indices 9. Voltage quality - voltage variations, causes, effects, evaluation, voltage regulation in distribution system, impact of decentralized generation on voltage profile 10. Voltage quality - voltage dips, fluctuations, unbalance - causes, effects, evaluation, mitigation 11. Voltage quality - harmonics - causes, effects, evaluation, mitigation, impact of harmonics on compensation capacitors 12. Power factor correction in industrial networks - types of PFC equipment, selection of appropriate of PFC equipment, incentive invoicing of reactive energy 13. Connection of equipment (electricity generation and accumulation facilities, disturbing installations) in distribution system - connectivity requests, network disturbances (voltage quality, power flows in distribution networks) Tutorials: General procedure of supply network design Maximum demand of industrial plant or its parts Power factor correction (PFC) - PFC equipment and their location, calculation of PFC equipment output Short-circuit currents in industrial networks - calculation of 3-phase short-circuit current, contribution of motors to short-circuit current Rating of supply system components (cable and transformer sizing) Assessment of network disturbances caused by special industrial equipment and generation facilities - procedure, selection of mitigation techniques
|
|
Learning activities and teaching methods
|
Laboratory work, Lecture
- Contact hours
- 65 hours per semester
- Team project (50/number of students)
- 25 hours per semester
- Preparation for formative assessments (2-20)
- 5 hours per semester
- Preparation for an examination (30-60)
- 35 hours per semester
- Contact hours
- 20 hours per semester
- unspecified
- 45 hours per semester
|
| prerequisite |
|---|
| Knowledge |
|---|
| 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 compare reliability and other performance characteristics of overhead lines and underground cables, and electric network arrangements |
| to define parameters of network elements, to draw up their equivalent circuits |
| to draw up time behavior of a short-circuit current with maximum DC part, to analyze parts of a short-circuit current, to define short-circuit currents (initial symmetrical, peak, thermal) |
| to explain principles of fundamental protection devices |
| to distinguish the type of a switch according its switching capability and describe its application |
| to explain principle of power factor correction (PFC) and its benefits |
| to define quantities in power systems under non-sinusoidal conditions, to describes effects of harmonics |
| to explain origin of resonances in power systems and their applications, e.g. in passive single-tuned filters |
| Skills |
|---|
| to identify the way of neutral earthing on the basis of voltage and current conditions during a line-to-ground fault |
| to calculate conductor resistance, currents and complex power in AC circuits, power factor, efficiency, energy |
| to calculate power, current and voltage conditions in simple networks (one-side fed radial networks) in steady state |
| to calculate initial short-circuit current and power during 3-phase short-circuit fault |
| to size cross-section of a conductor and to make initial proposal of transformer installed capacity |
| Competences |
|---|
| N/A |
| N/A |
| N/A |
| learning outcomes |
|---|
| Knowledge |
|---|
| to describe concept of electrical power system and hierarchy of power system control, performance characteristics of transmission and distribution systems, trends and topical problems |
| to specify and compare reliability and other performance characteristics of network elements, to compare supply reliability and other performance characteristics of of EHV, HV, MV and LV networks, to give reasons for different way of system earthing and to compare dis-/advantages of system earthing arrangements |
| to explain aspects determining basis concept of industrial supply systems, to give specifics of industrial electrical grids |
| to explain concept of power system protection and principles of fault identification and location, give reasons for currents and voltage conditions during short-circuit and earth |
| to estimate impact of network elements on short-circuit current and its effects and to consider possibilities of their reduction |
| to define term Power Quality and voltage characteristics, to present causes of power quality disturbances |
| to describe impact of voltage quality on industrial equipment respectively impact disturbing equipment on supply voltage, to give examples of sensitive and disturbing equipments |
| to distinguish voltage characteristics, to describe causes of their disturbances, negative impacts on supply network and equipment, to assess application of various mitigation techniques |
| to explain principle of voltage regulation by means of transformers with tap changer, impact of decentralized generation on voltage profile and means for its reduction |
| to define requests for connection of equipment to distribution networks, to explain the impact of local sources on voltage quality and power flows across networks |
| Skills |
|---|
| to design basic concept of supply system with respect to requirements on power supply systems (power supply availability) |
| to calculate maximum demand of industrial plant or its parts |
| to calculate output of back-up source |
| to select number and output of transformers in substations and to draft operating mode of the transformers with respect to operational energy losses |
| to design power-factor correction/compensation, to select appropriate compensation equipment and its location, to calculate its output |
| to calculate 3-phase short-circuit currents in industrial networks |
| to rate main feeders/cables |
| to assess network disturbances caused by special industrial equipment and generation facilities, to select appropriate of mitigation technique |
| Competences |
|---|
| N/A |
| teaching methods |
|---|
| Knowledge |
|---|
| Lecture |
| E-learning |
| Skills |
|---|
| Practicum |
| Individual study |
| Competences |
|---|
| Individual study |
| Lecture |
| assessment methods |
|---|
| Knowledge |
|---|
| Combined exam |
| Skills |
|---|
| Test |
| Project |
| Competences |
|---|
| Combined exam |
| Project |
|
Recommended literature
|
-
ČSN EN 50160 - Charakteristiky napětí el. energie dodávané z veřejné distribuční sítě. 2000.
-
ČSN EN 60909-0 Zkratové proudy v trojfázových střídavých soustavách - Část 0: Výpočet proudů. 2002.
-
ČSN 33 2000-5-523 - Elektrická zařízení, výběr a stavba elektrických zařízení, dovolené proudy. 1994.
-
ČSN 34 1610 - Elektrický silnoproudý rozvod v průmyslových provozovnách. 1963.
-
PNE 33 3430-0 - Výpočetní hodnocení zpětných vlivů odběratelů distribučních soustav.
-
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.
-
Dugan, Roger C. Electrical power systems quality. 3rd ed. New York : McGraw-Hill, 2012. ISBN 978-0-07-176155-0.
-
Fencl. Průmyslový elektrický rozvod. ČVUT Praha, 1989.
-
Hudeczek, Mečislav; Santorius, Pavel; Pantůček, Edmund; Cichoň, Břetislav; Satinský, Alexej. Chránění I : elektrická zařízení do 1000 V. Havířov : IRIS, 2004. ISBN 80-903540-1-7.
-
Korenc, Vladimír; Holoubek, Jiří. Kompenzace jalového výkonu v praxi. 1. vyd. Brno : IN-EL, 1999. ISBN 80-86230-07-4.
-
Kříž, Michal. Dimenzování a jištění elektrických zařízení - tabulky a příklady. Čtvrté - aktualizované vydání. 2015. ISBN 978-80-87942-07-9.
-
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.
-
Orságová, Jaroslava. Rozvodná zařízení. VUT Brno, 2007.
-
Pavlovský, Bohumír. Elektrické sítě v městech a sídlištích. Vyd. 1. Praha : SNTL, 1975.
-
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.
-
SIEMENS. Planning of Electric Power Distribution - Technical Principles. 2018.
-
SIEMENS. Power Engineering Guide (PEG). Edition 8.0. Publicis Pixelpark, Erlangen, Germany, 2016.
-
Tesařová, Miloslava; Štroblová, Milada. Průmyslová elektroenergetika. Plzeň : Západočeská univerzita, 2000. ISBN 80-7082-703-3.
-
Tůma, Jiří,; Martínek, Zbyněk,; Tesařová, Miloslava,; Chemišinec, Igor. Security, quality and reliability of electrical energy. Praha : Conte, 2007. ISBN 978-80-239-9056-0.
|