考虑高耗能企业车间柔性排程的低碳工业园区双层优化调度

Bi-level optimal dispatching of low-carbon industrial park considering flexibleshop scheduling in high-energy-consuming enterprise

“双碳”目标下,工业园区作为工业系统最重要、最广泛的载体,其低碳转型势在必行。在此背景下,文中建立一种考虑高耗能企业车间柔性排程的低碳工业园区双层优化调度模型。模型充分挖掘高耗能企业的灵活调节能力,通过灵活调整高耗能企业的生产方案获取园区的最优低碳调度计划,实现工业园区和高耗能企业的协调运行。首先,工业园区作为上层计及碳交易和绿证交易成本,以总运行成本最小为目标建立优化调度模型。然后,下层针对园区中的高耗能企业流水车间柔性排程问题,以最小化最大加工时间和生产成本为目标进行优化。园区运行层将由企业排程节约的部分成本作为补贴,上下层不断协调调度方案从而达到最优目标。最后,通过算例验证了文中所提出模型的可行性和有效性。结果表明所提方法在降低企业的生产成本、提升生产效率的同时,可有效促进园区负荷削峰填谷,实现工业园区的低碳经济运行。

Under the′dual-carbon′goal,industrial parks,as the most important and extensive carriers of industrial systems,must undergo low-carbon transformation.In this context,this paper establishes a bi-level optimal dispatching model of low-carbon industrial park considering flexible scheduling of high-energy-consuming enterprises′production workshops.The model fully exploits the flexible adjustment ability of high-energy-consuming enterprises,obtains the optimal low-carbon scheduling plan of the park by flexibly adjusting the production scheme of high-energy-consuming enterprises to realize the coordinated operation of the industrial park and high-energy-consuming enterprises.Firstly,the upper layer establishes an optimal scheduling model with the objective of minimizing the total operating cost,taking into account carbon trading and tradable green certificate costs.Then,the lower layer focuses on the flexible scheduling problem of the high-energy-consuming enterprise′s production workshops within the industrial park,aiming to minimize the maximum completion time and cost.The cost savings achieved by enterprise scheduling at the operational layer are used as subsidies.The upper and lower layers continuously coordinate and schedule plans to achieve the optimal objective.Finally,the feasibility and effectiveness of the proposed model are verified through case studies.The proposed approach not only reduces production costs and improves production efficiency but also effectively promotes load balancing,realizing the low-carbon operation of the industrial park.