Abstract
Designing and planning of electrical distribution systems is a task that design engineers perform during their daily activities. These designs, which are completed manually, are made according to the expertise of the designer; as a consequence, the obtained product varies depending on the person in charge of executing the layout, highlighting the fact that those designs are susceptible to involuntary human mistakes resulting in no optimal solutions and high cost consequences. The work presented below explains the implementation of an intelligent decision tool that allows the design of network distribution system planning considering the current electrical company standards, in order to have a clear and quick initial overview of the configuration that an electricity network should have in response to an increasing demand, considering not only the coverage and capacity of the transformers but also voltage drop along the conductors, which must not exceed 3% of the nominal value. The objective of this design tool is that it can be applicable in real scenarios; for this reason, the routing of the conductors and the location of the transformers are based on a georeferenced map. It is important to mention that the optimization problem is focused on minimizing the amount of transformers and at the same time ensuring a total coverge of 100% end users connected to the grid. This tool would be very useful in the educational and practical fields, since private and public electricity companies could use it to obtain a quick and efficient base product on which they could start to develop expansion and planning of distribution networks. The concept and development of such a tool is the subject of this paper.
Highlights
Within the electrical sector there is an infinity of simulation programs that allow to know in detail all the characteristics of a distribution system; the electricity market at professional and educational level, does not have an intelligent decision tool which allows to implement a design solution for the layout of that distribution network
All the case studies contemplate distribution equipment and its features based on technical requirements, for instance, 13.8 kV primary feeders are considered for medium voltage grids, whilst the low voltage network works at 220 V
It has been depicted illustrated with solely one distribution transformer and its two secondary low voltage circuits that connect it with end users
Summary
Within the electrical sector there is an infinity of simulation programs that allow to know in detail all the characteristics of a distribution system; the electricity market at professional and educational level, does not have an intelligent decision tool which allows to implement a design solution for the layout of that distribution network. Expansion and planning of electrical networks involve the first and most important topic, which is distribution system. This system could become one of the most complex and important, mainly because it is related to the connection of the electrical system with the end users [3,4,5,6]
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