Abstract
Energy efficiency is critical in manufacturing for reducing emissions and costs. Focusing on the manufacturing system with the characteristics of multi-machine and multi-task, a novel service-oriented energy supply (SOES) method where the energy supply is deemed as a service, is proposed to improve its efficiency. The service-oriented system is a network of an inter-connected service pool as well as capabilities of intelligent management and on-demand use of services. The SOES system centralizes energy conversion units (ECUs) with different levels of output power as service agents to respond to the energy requests of several individual machines, and each machine requests a service that can match the power demand of the corresponding task. The framework configuring the agent and constructing the response mechanism to ensure the energy efficiency of ECUs was developed. A case applying to the forming processes was performed to validate the effectiveness. Results show that the proposed system owns a better energy-saving effect than the commonly used servo system.
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