Yiannis A. Katsigiannis

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The optimal sizing of a small autonomous hybrid power system can be a very challenging task, due to the large number of design settings and the uncertainty in key parameters. This problem belongs to the category of combi-natorial optimization, and its solution based on the traditional method of exhaustive enumeration can be proved extremely time-consuming.(More)
The intermittent nature of the wind creates significant uncertainty in the operation of power systems with increased wind power penetration. Considerable efforts have been made for the accurate prediction of the wind power using either statistical or physical models. In this paper, a method based on Artificial Neural Network (ANN) is proposed in order to(More)
—This paper introduces a new general methodology for the modeling and reliability evaluation of small isolated power systems, which include wind turbines, photovoltaics, and diesel generators, based on fluid stochastic Petri nets (FSPNs). The proposed methodology presents two major novelties in FSPN mod-eling, namely: 1) the introduction of a new kind of(More)
In this paper, a methodology for the evaluation of the economic viability of investment plans for biomass heating systems is applied. The factors participating in the development and application of biomass heating systems as well as the financial criteria used for the evaluation of the investment are analytically presented. The methodology is applied to the(More)
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