| CODE | EPC4201 | |||||||||
| TITLE | Electrical Power 4 | |||||||||
| UM LEVEL | 04 - Years 4, 5 in Modular UG or PG Cert Course | |||||||||
| MQF LEVEL | Not Applicable | |||||||||
| ECTS CREDITS | 5 | |||||||||
| DEPARTMENT | Industrial Electrical Power Conversion | |||||||||
| DESCRIPTION | This study-unit describes the theory and practical aspects of two additional applications that are fundamental to the modelling and analysis of electrical power systems: Unsymmetric Faults and System Stability. The topics that will be studied within each of these areas are listed below. Unsymmetric Faults - overview of symmetrical components; derivation of sequence network interconnection; transformer zero sequence models; calculation of phase fault currents. System Stability - causes and effects of generator power imbalance; physical interpretation of the generator power-angle diagram, derivation of the equal area criterion, effect of different types of faults on generator stability, critical clearing angle. Generator protection: protection principles and characteristics for different types of generators; frequency voltage and current protection schemes, protection and control of generators systems; different earthing methods and protection requirements. Transformer protection: high voltage network and distribution system transformers; delta-star; and delta-zigzag and star-star main versus back-up protection schemes including primary and secondary transformer windings protection; standby and restricted earth fault protection; transformer control and monitoring of oil characteristics Substation monitoring and control and SCADA: monitoring and automation of distribution centres and the whole high voltage network. Regulatory aspects of generation, transmission and distribution of electricity: Local and EU regulations. Study-unit Aims: The aims of the study unit are to present the electrical engineering student with knowledge in the areas of: - Unsymmetric Faults - System Stability - Network and substation monitoring and control - Transformer protection - Generator protection - Regulatory aspects of electricity supply chain Learning Outcomes: 1. Knowledge & Understanding: By the end of the study-unit the student will be able to: - utilise the method of symmetrical components to analyse unsymmetric faults, - investigate the stability of single machines connected to an infinite bus, - understand generator and transformer protection main and back up principles and work out related problems related to earth faults and tripping times, - understand why regulatory aspects are needed for electricity generation and supply, - understand the need for network supervision and control. 2. Skills: By the end of the study-unit the student will be able to: - apply the theoretical knowledge of the course to explain the operation of a practical power system in the areas of study, - perform manual calculations on simple systems in the areas of study, - interpret the input data requirements of typical power system analysis software, - understand the results of typical power system analysis software, - understand regulatory aspects and EU directives in regard to electricity generation and supply, - understand protection trips and their causes in regard to high voltage systems. Main Text/s and any supplementary readings: 1. Weedy B.M., Electric Power Systems, 3rd Edition, John Wiley & Sons, 1988. 2. John J. Grainger, Stevenson W.D., Element of Power System Analysis, 4th Edition, McGraw Hill, 1982. 3. Arigalla, J.C.P. Arnold, B.J. Harku, Computer Modelling Of Electrical Power System, Wiley, 1983. 4. Nagrath I.S., Kothari D.P., Modern Power System Analysis, 2nd Edition., Tata McGraw Hill New Delhi, 2001. 5. Glover J.D, Sarma M.S., Power System Analysis and Design, 3rd Edition, Brooks/Cole, USA, 2002. 6. Chapman S.J., Electric Machinery and Power System Fundamentals, 1st Edition, McGraw Hill, New York, 2002. |
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| ADDITIONAL NOTES | Pre-requisite Study-unit: EPC4101 | |||||||||
| STUDY-UNIT TYPE | Lecture and Tutorial | |||||||||
| METHOD OF ASSESSMENT |
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| LECTURER/S | Alan Cassar (Co-ord.) Godwin Sant |
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The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints. Units not attracting a sufficient number of registrations may be withdrawn without notice. It should be noted that all the information in the description above applies to study-units available during the academic year 2025/6. It may be subject to change in subsequent years. |
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