Transients in Power Engineering

Lecturer:

Tutor:

Supervisor:

Department of Electroenergetics

Synopsis:

The aim of the subject is to acquire wider knowledge of transients in electrical networks. After obtaining necessary information about parameters and characteristics of particular elements, the main attention is paid to the methodology of solution of symmetric and non-symmetric, static and dynamic, particularly non-standard transients in power systems. The course is supplemented with indispensable chapters of mathematics and physics of non-linear dynamic systems with application to some typical phenomena in power systems.

Requirements:

Syllabus of lectures:

1. Circuit parameters of the elements of electrical networks

2. Components and the per unit system

3. Steady symmetric states in three-phase systems

4. Evaluation of non-symmetric states by means of components

5. Modal analysis of power systems

6. Transverse and longitudinal faults and non-symmetries I

7. Transverse and longitudinal faults and non-symmetries II

8. Short-circuits in power systems, important values

9. Earth-connections and associated phenomena

10. Static stability of the power system and its criteria

11. Dynamic stability of the power system and its criteria

12. Non-linear dynamics in power engineering

13. Resonance phenomena in power networks

14. Transients on lines with distributed parameters

Syllabus of tutorials:

1. Calculations of the system parameters, lines, cables, chokes, transformers, synchronous and asynchronous machines

2. Linear transform, computations of individual systems

3. Calculation of the load flow in multinodal networks

4. Modelling of non-symmetries in a system

5. Eigenvalues and eigenvectors of a system, transformations of systems

6. Calculations of non-symmetric short circuits

7. Calculations of longitudinal non-symmetric faults

8. Calculation of the time evolution of the short-circuit current in a multinodal network

9. Modelling of the situation at the ground connection

10. Calculation of the static stability in a multinodal network

11. Calculation of the dynamic stability in a general system with n machines

12. Situation in a power system with non-linear elements during transients

13. Calculation of eigenvibrations of a system during transients

14. Calculation of transients in systems with distributed parameters

Study Objective:

Study materials:

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Heavy-current Engineering - Technological Systems- structured studies (compulsory course)
• Heavy-current Engineering - Electric Drives- structured studies (compulsory course)
• Heavy-current Engineering - Electroenergetics- structured studies (compulsory course)
• Heavy-current Engineering - Electrical Engineering Applications- structured studies (compulsory course)