elec9711_s2__2013

1

ELEC9711 – Course Outline J. Fletcher

School of Electrical Engineering & Telecommunications University of New South Wales

ELEC9711 – POWER ELECTRONICS FOR RENEWABLE AND DISTRIBUTED GENERATION

Course Outline for S2, 2013

Course Objectives:

Power electronic circuits are an essential component of renewable and distributed energy sources including wind turbines, photovoltaics, marine energy systems and energy storage systems. They are also finding increasing use in other utility applications including active power filters, VAr compensator, dynamic voltage restorers and HV DC transmission systems. Electronic processing of electrical power for these applications also provides the means to control these elements of the electrical grid and its generation sources.

The course is aimed at students who have already been introduced to a first course in Power Electronics which covers steady-state characteristics of various AC-DC, DC-DC, and DC-AC converter circuits. The fourth year elective course ELEC4614 – Power Electronics offered by EE&T, UNSW, is such a course. The objective of ELEC9711 is to show how these converter topologies are utilised in renewable energy systems (wind and PV), in utility applications (for example HVDC) and to further investigate the converters in terms of their efficiency, control characteristics, description of dynamics and their closed-loop control. Some advanced converter topologies, especially in the context of large and complex applications, which are beyond the scope of a first course in power electronics, are also treated.

The course also introduces students to computer modelling of power electronic converters and their control circuits using modern simulation platforms like LTSpice, PSIM or SimPower in Matlab-Simulink.

2


Opportunities:

The course is intended for students who may want to further their knowledge of renewable and distributed energy systems and their reliance on power electronic converters in their safe and useful control. The course details the analysis of commonly used converters with non-ideal components, their efficiency, design, control, and switching techniques and in particular. It is relevant to engineers who wish to understand the modern and complex power electronics systems that form a core section of renewable and distributed energy sources including wind, PV, CHP and energy storage. It will provide key skills to engineers involved in the design, selection and maintenance of electronic power converters, for example, AC and DC power supplies in appliances, in utility applications for grid connection of renewable power sources, automotive and other traction systems, in industrial automation equipment such as for motor drives, ship propulsion and so on.

Brief Syllabus:

UOC6 The topics to be covered in this course will include: Grid integration of electrical power from renewable sources; Current and voltage control; Advanced topics in DC-DC converters, inverters, AC-DC converters and AC-AC converters for use in utility interfacing; resonant converters for DC-DC conversion; dynamic representation of DC-DC converters, control loops design; converter circuit and system modelling using LTSpice or other platforms, device selection and their modeling, thermal design, gate drive circuit design, magnetic core and other component selection and design, and case studies of converter system designs. Provisional Course Content______ Hours

1. DC-DC converters & power supplies 10

2. DC-AC Inverters for utility interfacing 10 3. Resonant converters 4

4. Power electronics for renewable and utility applications 10

______________________________________________________________________

Provisional Total hours 34

3


Staff Contact Details

Position Name Email Availability; times and location

Phone

A/Pro J Fletcher [email protected]

Room EE131 x56007

Aims of this course

The aim of this course is to equip students with more in-depth knowledge of power converter circuits than is possible in an introductory course. Converters with non-ideal devices and components and their control characteristics (both steady-state and dynamic) as encountered in real converters are treated. Converters systems of much greater complexity and application requirements are covered. Modelling of converter circuits and systems on PSIM and Matlab/Simulink and other platforms are introduced, with a view to acquaint students with such design platforms.

Student Learning Outcomes and Graduate attributes At the conclusion of this course, the students will be able to:

1. understand the use of power converters in wind turbines

2. understand the use of power converters in PV applications

3. understand the concept of maximum power point tracking

4. understand how real and reactive power flow can be controlled from a renewable or distributed energy resource to the utility network

5. understand the basic components of an HVDC system and the control of real power flow

6. understand power converters with non-ideal devices and elements;

7. develop analytical techniques for analysing the steady-state and dynamic characteristics of converters.

8. understand the quadrant operation of various types of converters and their control requirements, selection of converters, components, etc.

9. understand how to design the hierarchical control structures for power converters and systems.

10. be able to select and design important elements of a power converter system.

11. be able to apply the theories of power electronic converters and control system design to implement power converter systems which are appropriate for specific applications.

4


Lecture Notes

Lecture notes written by the lecturer for each section will be available from the course webpage. These will be based on the following text books and other reference material which will be cited within the lecture notes.

All lecture notes, assignments, tutorial and technical report topics for this course can be downloaded on the school webpage, via Current Students → Study Notes → Lecture Notes. You may have to use username: (your student number) and password: ee&tview in order to access these documents. Students will be expected to bring the printed lecture notes and tutorial sheets into the lecture/tutorial room.

Tutorials:

Lectures will be supplemented with problem solving tutorial sessions. Five to six tutorial sheets may be expected. The problem-solving sessions will be on most recently covered topics. Additionally, PSIM or LTSpice sessions may be arranged in room EE214. Students will be expected to participate vigorously during these sessions, in the form of questions, suggested solutions and methods. Participation by students and the tutor should be viewed as desirable aspects of these sessions.

Assessment: Students will be assessed according to the following scheme:

Coursework assignment 20% of total due 18 October 2013 Final Examination 80% of total

In the final examination students will be offered 4 questions from which 3 should be answered. Textbook:

1. N. Mohan, T. M. Undeland & W. P. Robins, “Power Electronics; Converters, Applications and Design”, John Wiley, Second Edition, 1995, New York.

References:

2. J. G. Kassakian, M.F. Schlecht & G.C. Verghese, “Principles of Power Electronics”, Addison Wesley, 1991.

3. R. W. Erickson, "Fundamentals of Power Electronics”, Kluwer Academic

Publications, 1997. 4. D. W. Hart, “Introduction to Power Electronics”, Prentice Hall International, 1997.

elec9711_s2__2013

Documents