Assessing the Impact of Micro Generation in Radial Low Voltage Distribution Networks Taking into Consideration the Uncertainty

Alvaro Gomes
Department of Electrical Engineering and Computers – University of Coimbra, Coimbra, Portugal \ INESC Coimbra, Coimbra, Portugal

Luís Pires
Department of Electrical Engineering and Computers – University of Coimbra, Coimbra, Portugal

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp110572961

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:36, s. 2961-2968

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


The increasing penetration of micro generation units in low voltage distribution networks and the need for evaluating the potential benefits and also the potential negative impacts of such penetration ask for detailed assessment tools and methodologies. The impacts of a single small-scale unit (<5;75kW) is; probably; negligible. However; the aggregate contribution of many small capacity units can be significant and an adequate assessment of the impacts is needed in order to prevent some undesirable effects and in order to accurately compute the benefits of such units. This paper presents a methodological approach that allows an adequate assessment of micro generation impacts on radial distribution networks based on Monte Carlo simulations to reproduce both demand and generation behavior; and using scenarios to deal with the uncertainty about micro generators placement. Besides; the use of both generation and demand diagrams of high resolution allows to adequately assess the voltage values variability in different buses.


Micro-generation; LV radial distribution networks; Losses and voltage profile assessment


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