410-4115/02 – Transient Effects in Electrical Systems (PJES)
| Gurantor department | Department of Electrical Power Engineering | Credits | 8 |
| Subject guarantor | Ing. Petr Moldřík, Ph.D. | Subject version guarantor | Ing. Petr Moldřík, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 1 | Semester | summer |
| | Study language | English |
| Year of introduction | 2015/2016 | Year of cancellation | |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Explaining basic terms and principles of electromechanical transient effects in electric systems. After passing the subject the student is able to calculate symmetric and asymmetric short-circuit in power grid, ground faluts in isolated and compensated power grid and static and dynamic stability of system. The student is also able to practise dimensioning of electric equipment according to effects of short-circuit currents.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Project work
Other activities
Summary
The subject includes theoretical part of extraordinary states in electric systems. It follows short-circuit in power grid, ground fault in isolated and compensated power grid and system static and dynamic stability. The subject explains basic terms of electromechanical transient effects in electric systems.
Compulsory literature:
1. Machowski, J., Bialek, J.W., Bumby, J.R.: Power system dynamics and stability. Wiley, 1997.
Recommended literature:
1. Anderson, P.M., Fouad, A.A.: Power system control and stability. Iowa, 1977.
Additional study materials
Way of continuous check of knowledge in the course of semester
Processing of reports from laboratory works, design of individual projects, test.
Credit conditions: Profit minimum 15 points, attendance at laboratory work.
E-learning
Study aids are available in the LMS.
Other requirements
Additional requirements for the student are not.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
Definition and distribution of transient effects. Electromagnetic effects in electric systems.
Three-pole short-circuit supplied by ideal source.
Three-pole short-circuit of synchronous machine. Three-pole short-circuit on connectors of asynchronous motor.
Characteristic values of short-circuit in general network.
Parameters of elements of electric system in symmetrical systems.
Asymmetrical operating status of electric system.
Calculation of short-circuit currents in complicated electric systems.
Dimensioning of electric equipment according to effects of short-circuit currents.
Ground connection in electric systems. Transient overvoltage at ground connection.
Electromechanical transient effects in electric systems. Simple system stability.
Static stability of simple system.
Dynamic stability of simple system.
Stability of complicated electric system. Asynchronous operation of electric system.
Exercises:
Information about the requirements for passing the exercises. Safety considerations. The organization of the work in the labs. Instructions for elaboration of lab task.
Calculation of short-circuit currents according to ČSN 33 3020.
Calculation of symmetric and asymmetric short-circuit currents.
Calculation of short-circuit currents with influence asynchronous motors.
Calculation of ground connection in electric systems.
Dimensioning of electric equipment according to effects of short-circuit currents.
Calculation of static stability of simple system.
Calculation of dynamic stability of simple system.
Calculation stability of complicated electric system.
Credit exercise.
Laboratory:
Laboratory electrical measurement of short-circuit currents at model.
Laboratory electrical measurement of ground connection at model.
Projects:
Calculation of symmetric short-circuit currents.
Calculation of asymmetric short-circuit currents.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction