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Study-Unit Description
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CODE EPC4104

 
TITLE Power Electronic Converters and Distributed Generation

 
LEVEL 04 - Years 4, 5 in Modular UG or PG Cert Course

 
ECTS CREDITS 5

 
DEPARTMENT Industrial Electrical Power Conversion

 
DESCRIPTION - Multilevel Converters
Multilevel converter configurations and their method of control and switching will be discussed. Their main advantages are smoother power delivery, greater power processing for a given size component, and modularity. High voltage and high power applications, with components such as fuel cells, solar arrays, and electric and hybrid vehicles will be discussed.

- Matrix Converters
This novel type of converter was developed to convert an a.c. source directly to another a.c. source of varying frequency and amplitude without the need to a d.c. link in between. The construction and control of these converters will be explained.

- Grid Connected systems (p.v. and wind) and Distributed Generation
The power electronic converters used in the grid connection of wind and p.v. systems will be discussed. PM synchronous generators and DFIM with back to back converters will be covered in detail. The construction and control of grid-connected inverters will also be considered and techniques to detect for 'islanding' will be discussed. Finally the basic concepts of how to operate and control a DG or 'smart' grid system shall be introduced.

-Engineering Applications of Power Converters
Various applications such as High Power Factor topologies, Active Filters, HVDC, Energy Storage.

Objectives:

This study-unit will lead to an understanding of advanced power converters used for energy conversion. Direct ac to ac conversion and dc to high voltage ac conversion will be covered in detail. Connection of renewable energy sources to the power transmission grid will be discussed with an international perspective.

Study-unit Aims:

The aims of the study-unit are to present the electrical engineering student with knowledge in the areas of advanced power converter topologies used for energy conversion. Direct ac to ac conversion and dc to high voltage ac conversion will be covered in detail. Connection of renewable energy sources to the power transmission grid will be discussed with an international perspective.

Learning Outcomes:

1. Knowledge & Understanding:

By the end of the study-unit the student will be able to:
- identify various power electronic topologies (e.g. multilevel, matrix, grid-connected inverters and high power factor topologies).
- implement control for the above mentioned topologies.

2. Skills:

By the end of the study-unit the student will be able to:
- Analyse circuit behaviour of power electronic topologies covered in this unit.
- Perform design calculations to size appropriately specific components of these power electronic circuits.
- Select suitably rated components for the implementation of power electronic circuits considered.

Main Text/s and any supplementary readings:

- Mohan, Undeland & Robins, 'Power Electronics Converters, Application, and Design', John Wiley & Sons, ISBN 0-471-58408-8, 2002.
- Teodorescu, Liserre & Rodriguez, 'Grid Converters for PV and Wind Power Systems', IEEE Wiley ISBN 978-0-470-05751-3, 2011.
- Philip Krien, Elements of Power Electronics, Oxford Press.

 
ADDITIONAL NOTES Pre-requisite Study-unit: EPC3103

 
STUDY-UNIT TYPE Lecture and Tutorial

 
METHOD OF ASSESSMENT
Assessment Component/s Resit Availability Weighting
Assignment No 15%
Examination (2 Hours) Yes 85%

 
LECTURER/S Maurice Apap
John Licari
Cyril Spiteri Staines

 
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 study-unit description above applies to the academic year 2017/8, if study-unit is available during this academic year, and may be subject to change in subsequent years.
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