A unique mathematical model for maintenance strategies to improve energy flows of the electrical power sector

In this paper, an improved mathematical model that evaluates the economic efficiencies of the integrated energy system, comprising the fuel networks (coal and natural gas) and the electrical power system has been extended. According to this model, the economic efficiency of the electric energy system depends on many factors including electric generation, transmission subsystems and the ability to produce and transport a variety of primary energy sources. In this study, new constraints for maintenance of the electricity and natural gas subsystems have been considered in addition to the constraints of the previous model. Additionally, by using analysis of variance (ANOVA), the effect of climate conditions on different gas or electricity transmission regions (with the assumption of equal break-even point for failure probability) has been analyzed. Finally, conditions under which preventive maintenance should be applied have been discussed. Notice that the extended model is linear and has been solved with the GAMS 23.5.1 software.

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