Energy Saving Delay Window Opportunity Maintenance Strategy of Production System Based on Energy Efficiency

Abstract:

Combined with the effective output of the system and the energy consumption， the energy efficiency indicator （EEI） was put forward. Taking the multi-machine series system as the research object， the machines’ degradation was subjected to the Tweedie exponential-dispersion process. By considering the output loss in production， and using the opportunity maintenance strategy based on the energy-saving delay time window， the decision point of the earliest optimal maintenance moment changed to the decision point of the maintenance combination window. Opportunity maintenance models were built with the goal of minimizing the energy efficiency （EE） of the system during the planning period. Finally， an example analysis was carried out by MonteCarlo simulation experiment. Results showed that the opportunity maintenance model was feasible in reducing the total energy consumption and increasing the effective output of the system.

Key words:opportunity maintenance;energy efficiency;energy-saving delay time window;Tweedie exponential-dispersion process;output loss