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Electrical Power Systems Technology

28 Mar
Academic Year 2017/18
ENG791S2 – Electrical Power Systems Technology
Coursework
Deadline For Submission: 04/05/2018, 23.59
Submission Instructions Submit your work as a single PDF file via Moodle unit website before
the indicated deadline. In the author section of the paper clearly
indicate your student ID number, course and university. Also submit
any Matlab code and data generated during the work on the paper.
Instructions for completing the
assessment:
Further information provided on the next page.
Examiners: Branislav Vuksanovic, Ioannis Kagalidis, Nils Bausch

2017-18 Page 1 of 2
Inter-Area Oscillations of Power Systems
Integration of renewable energy sources in the existing electrical power system and increased interconnection
of power systems can in many cases result in long distant power transfers between the parts of the grid. Such
power transfer carries the potential risk of low frequency electromechanical oscillations in the power grid. This
kind of oscillatory behaviour is characteristic of the systems with a number of synchronous generators
connected in the grid. Those, so called, inter-area oscillations occur frequently in power networks and are
usually stable. Oscillations can however have low damping ratios and can severely limit transfer capacities of
the network. In some cases, damping ratios can even be negative and oscillations can grow out of control
leading to grid reliability issues and potentially large-scale blackouts. A number of those events have been
recorded in the past.
For this coursework, you should investigate the phenomenon of inter-area oscillations and produce a report
on your findings in the form of short review type research paper.
Submit your report as a single PDF type file and attach any developed Matlab code or data to it. Your paper
should be written in the IEEE format with the maximum length of 6 pages and not more than approximately
2000 words. You can make use of IEEE paper template and instructions provided in the IEEE template.
Template is available on:
https://www.ieee.org/conferences_events/conferences/publishing/templates.html.
In the report, you should briefly introduce the problem, list and describe relevant and up to date research
publications on the subject and, if possible, at the same time critically evaluate those works and identify
potential gaps in the research literature. Further, your report should describe suitable techniques (methods
or algorithms) for dealing with the problem of inter-area oscillation. Here, you can consider either
measurement, detection, analysis and/or techniques for preventing or reducing their occurrence.
Optionally, (for higher mark) you can include the section where a particular case of inter-area oscillations in
the power system will be studied in more details. This could contain available oscillation data measured in
some particular grid or, preferably, your own simulation (using Matlab or some other suitable package) of a
system and oscillations in the system. Results of your simulations should be presented and described.
Discussion and conclusions of achieved results should be given at the end of your report/paper followed by
the list of references and appendices if used. The report, as well as referencing should be written in the format
and style specified by IEEE.
You can work individually or in groups of maximum two (2) students. If you do work in a group, your submission
should include a short statement outlining the contribution of each author to the work presented in the paper.
This statement should be included in the “Acknowledgement” section towards the end of the paper before
the list of references.
Your work will be peer assessed by your classmates. Feedback provided by them will be included in your final
feedback for the submitted work. Peer marking will contribute 10% to your final coursework mark. Your
feedback should be insightful and justified according to specified marking criteria.
Report/Paper Content and Relative Weights (other sections and subsections could be included)

Section/Aspect Marks
Introduction to the Problem and Literature/Research Overview 20
Theoretical Background 20
Results and Analysis 20
Conclusions 20
Overall Impression 10
Peer Marking 10

2017-18 Page 2 of 2
Marking Scheme
80% and above (Distinction)
• an outstanding depth and breadth of research, showing exceptional and thorough knowledge of the
relevant field
• exceptional insight, critical analysis and originality, such as might make the work of comparable quality
with published work in its field
• an excellent and well-defined focus, clear structure and outstanding quality of argument
• clearly presented and well written, with no significant errors of syntax or expression
• referencing and bibliographical conventions accurately followed, to the professional standards of the
discipline
70-79% (Distinction)
• an outstanding depth and breadth of research, showing thorough knowledge of the relevant field
• outstanding insight, critical analysis and originality, showing the potential to make a real contribution to
the field of study
• an excellent and well-defined focus, clear structure and very good quality of argument
• clearly presented and well written, with no significant errors of syntax or expression
• referencing and bibliographical conventions accurately followed
60-69% (Merit)
• a good range of research, showing a good level of knowledge of the relevant field
• a good level of insight and critical analysis
• a well-defined focus, clear structure and cogent argument
• clearly presented and comprehensible throughout, with very few significant errors of syntax or expression
• referencing and bibliographical conventions adequately followed
50-59% (Pass)
• a sufficient range of research, showing a competent knowledge of the relevant field
• some evidence of insight and critical analysis
• an identifiable focus and structure, with some argument
• presented with sufficient clarity to be comprehensible throughout, though there may be some errors of
syntax or expression
• material used is referenced and a bibliography supplied, but disciplinary conventions may not be fully
observed
40-49% (Fail)
• evidence of relevant research, but with a limited or flawed knowledge of the relevant field
• little evidence of insight and critical analysis
• lack of clarity of focus and structure, and an inadequate argument
• presented with sufficient clarity to be generally comprehensible, though there may be errors of syntax or
expression
• material used is referenced, but disciplinary conventions may not be fully or properly observed
0-39% (Fail)
• insufficient research, and a very limited or flawed knowledge of the relevant field
• insufficient evidence of any insight and critical analysis
• lack of focus, structure, and argument
• the prose may be unclear and difficult to comprehend, and there may be serious and frequent errors of
syntax or expression
• insufficient acknowledgment and referencing of material used

 
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Posted by on March 28, 2018 in academic writing, Academic Writing

 

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