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Literature Review Overview and Examples

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<strong>Review</strong>ing the <strong>Literature</strong>: Writing<br />

• Analyze <strong>and</strong> critically evaluate the past research<br />

(“critical” is not a negative word!)<br />

◦ contributions, shortcomings, conclusions, ideas, or techniques<br />

of the research you’ve read (<strong>and</strong> how it fits into the topic)<br />

◦ this is part of the culture of doing academic research<br />

• Organize sections by concept or theme – you<br />

should not be giving just a summary of each article<br />

• Be selective <strong>and</strong> choose examples that give the<br />

reader relevant information<br />

MME9617 - Lise Doucette - Engineering Librarian


Example #1<br />

Several researchers have looked at the issue of solar-powered<br />

refrigeration for storing vaccines in developing countries:<br />

A. S. Bahaj, "Photovoltaic power for refrigeration of transported<br />

perishable goods," in Photovoltaic Specialists Conference, 2000.<br />

Conference Record of the Twenty-Eighth IEEE, 2000, pp. 1563-<br />

1566.<br />

D. Kilfoyle, B. Marion <strong>and</strong> G. G. Ventre, "Lessons learned from<br />

testing, photovoltaic vaccine refrigerators," in Photovoltaic<br />

Specialists Conference, 1990., Conference Record of the Twenty<br />

First IEEE, 1990, pp. 985-990 vol.2.<br />

M. N. Mansouri, M. F. Mimouni <strong>and</strong> M. Annabi, "Vectorial<br />

comm<strong>and</strong> of an asynchronous motor supplied by a photovoltaic<br />

generator," in Systems, Man <strong>and</strong> Cybernetics, 2002 IEEE<br />

International Conference on, 2002, pp. 5 pp. vol.5.<br />

MME9617 - Lise Doucette - Engineering Librarian


Example #2<br />

Several researchers have looked at the issue of solar-powered<br />

refrigeration for storing vaccines in developing countries.<br />

Jones <strong>and</strong> Smith (2010) wanted to develop a photovoltaic<br />

system to replace the diesel generator used on conventional<br />

trailers. Bahaj <strong>and</strong> Xie (2004) found that in general, for the PVpowered<br />

units, the arrays are stable <strong>and</strong> the refrigerators are<br />

reliable. The long-term limitation for these systems appears to<br />

be a gradual decline in battery capacity, while the short-term<br />

problem is the periodic unwarranted refrigerator cutoffs due to<br />

the system controller reacting to surge voltages. Kilfoyle <strong>and</strong><br />

Marion (2002) looked at the vectorial control of an<br />

asynchronous motor supplied by a photovoltaic system.<br />

MME9617 - Lise Doucette - Engineering Librarian


Example #3<br />

A large number of authors refers to inverter topologies<br />

for off-grid applications, as well as for direct conversion<br />

into the electricity utility grid. The need for a highefficient<br />

but low cost power conditioning system led to<br />

the development of this combined inverter, maximumpower-point-tracker<br />

<strong>and</strong> regulator. Only two switching<br />

elements, four diodes, one transformer <strong>and</strong> two<br />

electrolytic capacitors are used. For two researchers,<br />

reduction of harmonic generation is obtained by means<br />

of filters <strong>and</strong> simple sinusoidal modulation techniques.<br />

MME9617 - Lise Doucette - Engineering Librarian


Example #4<br />

Several researchers studied inverter topologies for off-grid<br />

applications (Smith, 2010; Jones, 2003; Kilfoyle, 2009), as<br />

well as for direct conversion into the electricity utility grid<br />

(Smith, 2010; Xie, 2009; Marion, 1999). The need for a highefficient,<br />

but low cost power conditioning system led to the<br />

development of this combined inverter, maximum-powerpoint-tracker<br />

<strong>and</strong> regulator (Jones, 2003). Only two<br />

switching elements, four diodes, one transformer <strong>and</strong> two<br />

electrolytic capacitors are used. Reduction of harmonic<br />

generation was obtained by means of filters <strong>and</strong> simple<br />

sinusoidal modulation techniques (Marion, 1999; Smith,<br />

2010).<br />

MME9617 - Lise Doucette - Engineering Librarian

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