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Optimizing storage operations in medium- and long-term power system models

S. Wogrin, D. Galbally, J. Reneses

In this paper, we propose a new methodology to formulate storage behavior in medium- and long-term power system models that use a load duration curve. Traditionally in such models, the chronological information among individual hours is lost; information that is necessary to adequately model the operation of a storage facility. Therefore, these models are not fully capable of optimizing the actual operation of storage units, and often use pre-determined data or some sort of peak-shaving algorithm. In a rapidly changing power system, the proper characterization of storage behavior and its optimization becomes an increasingly important issue. This paper proposes a methodology to tackle the shortcomings of existing models. In particular, we employ the so-called system states framework to recover some of the chronological information within the load duration curve. This allows us to introduce a novel formulation for storage in a system states model. In a case study, we show that our method can lead to computational time reductions of over 90% while accurately replicating hourly behavior of storage levels.


Palabras clave: Demand blocks, power system models, renewable integration, storage, system states.


IEEE Transactions on Power Systems. Volumen: 31 Numero: 4 Páginas: 3129-3138

Índice de impacto JCR y cuartil Scopus: 5.680 - Q1 (2016); 5.255 - Q1 (2017).

Referencia DOI: DOI icon 10.1109/TPWRS.2015.2471099    

Publicado en papel: Julio 2016. Publicado on-line: Septiembre 2015.


    Líneas de investigación:
  • *Programación de la Operación a Corto Plazo, Elaboración de Ofertas y Análisis de Reservas de Operación
  • *Planificación táctica a medio plazo

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