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Day-ahead stochastic scheduling model considering market transactions in smart grids

The integration of renewable generation and electric vehicles (EVs) into smart grids poses an additional challenge to the stochastic energy resource management problem due to the uncertainty related to weather forecast and EVs user-behavior. Moreover, when electricity markets are considered, market price variations cannot be disregarded. In this paper, a two-stage stochastic programming approach to schedule the day-ahead operation of energy resources in smart grids under uncertainty is presented. A realistic case study is performed using a large-scale scenario with nearly 4 million variables with the goal to minimize expected operation cost of energy aggregators. Three scenarios are analyzed to understand the effect of market transactions and external suppliers on the aggregator model. The results suggest that the market transactions can reduce expected cost, while the external supplier offers risk-free price. In addition, the performance metric shows the superiority of the stochastic approach over an equivalent deterministic model.

Author(s):

João Soares    
GECAD/ISEP
Portugal

Fernando Lezama    
GECAD/ISEP
Portugal

Bruno Canizes    
GECAD/ISEP
Portugal

Mohammed Ali Ghazvini Fotouhi    
GECAD/ISEP
Portugal

Zita Vale    
GECAD/ISEP
Portugal

Tiago Pinto    
BISITE/USAL
Spain

 

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