Rolling-horizon algorithm for scheduling under time-dependent utility pricing a...

• Autor(es): Castro, Pedro ; Harjunkoski, Iiro ; Grossmann, Ignacio E.
• Data: 2010
• Identificador Persistente: http://hdl.handle.net/10400.9/1104
• Origem: Repositório do LNEG
• Assunto(s): Continuos-time; Resource-task network; Planning; Electricity
• Tipo de Documento: Documento de conferência

Descrição

This work addresses the scheduling of continuous single-stage multiproduct plants with energy intensive processing tasks and time-dependent electricity cost and power supply. A new rolling horizon algorithm is proposed that consists of a planning model to predict the production levels and a continuous-time model for detailed scheduling. The results from a set of test problems from the literature show that the algorithm can generate global optimal solutions much more rapidly than standalone discrete or continuous-time formulations in problems involving unlimited power availability.