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Modeling the hidden flexibility of clustered unit commitment

G. Morales-España, D.A. Tejada

This letter proposes a clustered unit commitment (CUC) formulation to accurately model flexibility requirements such as ramping, reserves, and startup/shutdown constraints. The classic CUC intrinsically and hiddenly overestimates the individual unit's flexibility, thus being unable to replicate the result of the individual UC. This letter presents a set of constraints to correctly represent the units? hidden flexibility within the cluster. Different case studies show that the proposed CUC replicates the results of the individual UC while solving significantly faster. Therefore, the proposed CUC correctly represents the individual unit's flexibility within the cluster and could be used in large-scale planning models without significantly increasing their computational burden.


Palabras clave: Unit commitment, clustered UC, ramping constraints, reserves, flexibility, renewable energy sources.


IEEE Transactions on Power Systems. Volumen: 34 Numero: 4 Páginas: 3294-3296

Índice de impacto JCR y cuartil Scopus: JCR impact factor: 6.807 (2018)

Referencia DOI: DOI icon 10.1109/TPWRS.2019.2908051    

Publicado en papel: Julio 2019. Publicado on-line: Marzo 2019.



Cita:
G. Morales-España, D.A. Tejada. Modeling the hidden flexibility of clustered unit commitment. IEEE Transactions on Power Systems. vol. 34, no. 4, pp. 3294-3296, Julio 2019. [Online: Marzo 2019]


    Líneas de investigación:
  • Modelos de mercados eléctricos con alta penetración de generación renovable
  • Despacho óptimo de generación con red para sistemas híbridos AC/DC

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