Title: Robust loss coefficients: application to power systems with solar and wind energy

Authors: Dario Arango; Ricardo Urrego; Sergio Rivera

Addresses: Department of Electrical and Electronics Engineering, National university of Colombia, Bogota, Colombia ' Department of Electrical and Electronics Engineering, National university of Colombia, Bogota, Colombia ' Department of Electrical and Electronics Engineering, National university of Colombia, Bogota, Colombia

Abstract: In a power system analysis, it is useful to find the relation between power losses and generated power on a power system. It can be performed using loss coefficients. The main drawback of traditional loss coefficients is that they must be recalculated in case that change in conditions takes place in the power system. In this paper, a comparison is performed by using different estimation methods of loss coefficients. The first method is the traditional Kron method (KM); the second one is a proposed modification of the traditional incremental method (IM); finally, a heuristic estimation method, robust under different changes in conditions of power systems, is proposed. Additionally, the paper presents an application of power losses estimation in power systems with solar and wind energy. The stochastic behaviour of solar and wind energy is modelled using the probability distribution of solar irradiance and wind speed, respectively.

Keywords: power losses; loss coefficients; solar energy; wind energy; heuristic optimisation.

DOI: 10.1504/IJPEC.2018.10011719

International Journal of Power and Energy Conversion, 2018 Vol.9 No.4, pp.351 - 383

Received: 06 Jun 2016
Accepted: 14 Oct 2016

Published online: 28 Sep 2018 *

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