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A stochastic optimization approach to the design and operation planning of a hybrid renewable energy system

Title
A stochastic optimization approach to the design and operation planning of a hybrid renewable energy system
Authors
YU, JIAHRYU, JUN-HYUNGLEE, IN BEUM
Date Issued
Aug-2019
Publisher
Pergamon Press Ltd.
Abstract
Hybrid renewable energy systems (HRESs) have been introduced globally with the increasing emphasis on sustainable energy and the environment. It is very challenging to manage HRESs due to the inherent uncertainty in energy supply and demand. Recently, Energy Storage Systems (ESSs) have been drawing increasing attention as a promising alternative to minimize the difference between varying supply and demand. The ESS should be designed and operated based on the explicit consideration of uncertainty because a deterministic approach only captures a fixed snapshot of the varying system. The resulting scheduling problem for ESS operation was formulated as a two-stage stochastic programming model in this study. The model was then transformed into a mixed integer linear programming problem based on multiple equivalent scenarios. Five different scenario-generation methodologies were employed to illustrate the applicability of the approach. A numerical example illustrates that the HRES design and operation cost according to a stochastic model (US$ 6981/day) was at least 9.1% more economical than deterministic model (US$ 7680/day). From the results, it is shown that the proposed approach results in intelligent ESS operation that can increase the applicability of the HRES.
URI
http://oasis.postech.ac.kr/handle/2014.oak/99019
ISSN
0306-2619
Article Type
Article
Citation
Applied Energy, vol. 247, page. 212 - 220, 2019-08
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 LEE, IN BEUM
Dept. of Chemical Enginrg
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