Energy efficiency is of great significance in manufacturing to lower emissions and costs. Focusing on the production line featured with multi-machine and multi-task, a novel service-oriented energy supplying system where the energy supplying is deemed as a service is developed to improve efficiency. The service-oriented energy supplying system centralizes energy conversion units with different levels of output power as service agents to respond to the energy requirements of individual machines, and each machine requests a service that can match the power demand of the corresponding task. The architecture and mathematical model of all entities in the system were established to reveal the working process. The task-based agent design for the production line with different tasks was further developed to configure the system and construct the response mechanism to ensure the efficiency of energy conversion units. To validate the effectiveness, the system was applied on a production line that consists of four processes to form a clutch shell. Results show that the proposed system owns better energy-saving effects than that of the servo system with the performance of high energy efficiency, i.e., 6.42% of the energy consumption can be saved during a working cycle. The reason for energy saving was analyzed and how to further improve the efficiency of the system from the perspective of agent design was discussed. The proposed system assists in designing and operating multi-machine in a production line with similar tasks to be completed for higher energy efficiency.

能源效率对降低排放量和降低成本具有重要意义。针对具有多机多任务功能的生产线，开发了一种新型的以服务为导向的能源供应系统，该系统将能源供应视为服务，以提高效率。面向服务的能源供应系统将具有不同输出功率级别的能量转换单元集中为服务代理，以响应各个机器的能源需求，并且每台机器都要求提供可以匹配相应任务的电力需求的服务。建立了系统中所有实体的体系结构和数学模型以揭示工作过程。针对具有不同任务的生产线，进一步开发了基于任务的代理设计，以配置系统并构建响应机制，以确保能量转换单元的效率。为了验证有效性，该系统被应用在由四个过程组成的生产线上，形成了离合器壳。结果表明，所提出的系统具有比伺服系统更好的节能效果，具有较高的能效，即在一个工作周期内可以节省6.42％的能耗。从代理设计的角度分析了节能的原因，并讨论了如何进一步提高系统效率。