Resolution of problem due to high photovoltaic share thanks to Smart Grid
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Tipus de documentProjecte Final de Màster Oficial
Data2020-07-09
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Abstract
In order to meet the environmental challenges due to global awareness of climate change
and the objectives set by both national and international organizations, the electric sector
should integrate more renewable. But the historical grid has not be designed to support those
new generators. Smart grid technologies are one of key factors to pave the way. This thesis
tries to investigate smart-grid solutions to increase the photovoltaic share. A specificity of this
thesis is the field of application of the solution, the solutions are tested on a noninterconnected grid, located on Reunion Island.
The first solution study is the modification of the usual operation of a PV plant to provide
primary reserve without battery storage. This part doesn’t focus on the technical part but on
regulation and the remuneration of this service. A remuneration logic is suggested based on
the American system.
The second part is about the improvement of the calculation of the instantaneous production
of the small PV plant. Those plant are not communicating about their production to the grid
operator. This lack of information will become a problem when the proportion of those plants
will become significant in the mix. Using a correlation between the productions of the bigger
plants, a Python software provide the production of the individual plant and an estimation of
the global production. The logic of prediction is done by a proven concept develop during
another thesis. In this work, the logic is applied to set of plants, and it is improve using
different variation of the logic. After improvement, the software is able to predict well similar
type of production plant as the one used as predictor. Nonetheless, it doesn’t have enough
precision when the prediction is done on smaller plant. To achieve a correct precision, the
data from some of the small plants should be collected to teach the correct correlation to the
software.
The third part is about the management of data from the smart meter and more precisely the
out-range voltage. A solving process is explained as well as a new management of the
medium voltage grid. The voltage of the medium voltage grid will be a function of the
consumption to compensate the voltage drop in the line. By using the number of out-range
voltage on the low voltage grid, some points of operation are identified with a high probability
to generate out-range. The new management avoid to operate the grid with these conditions.
A pilot project is done here to test and verify the efficiency of the new management. With the
result of the investigation, a process to industrialize is explained and also the missing
investigation to have a complete solution.
The last part is slightly out of the scope of the thesis. It is the study of the impact of the
COVID crisis on the electric consumption of Reunion Island. The consumption before, during
and after the lockdown is study under different method and point of view
TitulacióMÀSTER UNIVERSITARI EN ENGINYERIA DE L'ENERGIA (Pla 2013)
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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report-xavier-collar.pdf | 2,498Mb | Accés restringit | ||
annexes-xavier-collar.zip | 446,2Kb | application/zip | Accés restringit |