网络化动态供应链系统切换控制

Supply Chains are network systems of facilities and distribution entities (suppliers, manufacturers, distributors, retailers) that perform the functions of procurement of raw materials, transformation of materials into intermediates and finished products, and distribution of finished products to customers by controlling the information flow and material flow. Efficient supply chains control can lead to lower production cost, inventory cost and transportation cost and improved customer service, which has become an important issue in control community recent years. . Switching control of network-based dynamical supply chain systems is studied in this project, where the properties of network-based dynamical supply chains, that is, the hierarchical and hybrid structure, different time scales and the node entities’ failure, are significantly addressed. The main contents of the study include the following aspects: Firstly, we will model network-based dynamical supply chain systems as a class of switched delay systems, and the design methods of switching controllers will be given for network-based dynamical supply chain systems with switching topologies. Secondly, bullwhip effects will be studied by dynamical analysis, and the strategies that attenuate the bullwhip effects will be given accordingly. Thirdly, for the subsystems in different network nodes with different time scale, switching control strategies will be presented. Simulation studies for the proposed methods will be given lastly. . The purpose of this study will develop and improve the switching control theory of the network-based dynamical supply chain systems, and it is of great significance for the control design of the real systems in engineering practice.

供应链是信息技术条件下不同节点的企业如供应商、制造商、分销商和零售商等集成，通过对信息流、物流、资金流的控制将材料转换成产品并送到用户手中的企业网络系统。实施有效的供应链控制可以降低生产、库存和运输成本，满足用户需求的多样性，成为控制领域近年来十分重要的研究课题。本项目围绕网络化动态供应系统具有层级性、混杂性、子系统时间尺度不同、节点企业可能出现异常等特点开展切换控制相关研究。主要研究内容包括：建立网络化动态供应链系统的切换时滞系统数学模型并进行分析和设计，给出基于切换拓扑的网络化动态供应链系统的控制策略；分析基于系统动力学的牛鞭效应成因并给出抑制策略；给出基于子系统具有不同时间刻画尺度的切换控制策略；同时编写算法程序实现仿真或实验研究。项目研究将完善和发展网络化动态供应链系统的切换控制理论，同时对一类工程实践具有指导意义。

在推进以智能制造为核心领域的高精尖技术创新进步背景下，实施有效的供应链控制可以降低生产、库存和运输成本，满足用户需求的多样性，成为控制领域近年来十分重要的研究课题。本项目围绕网络化动态供应系统具有层级性、混杂性、子系统时间尺度不同、节点企业可能出现异常等特点开展切换控制相关研究。主要包括以下内容：建立网络化动态供应链系统的切换时滞系统数学模型并进行分析和设计，给出基于切换拓扑的网络化动态供应链系统的控制策略；分析基于系统动力学的牛鞭效应成因并给出抑制策略；给出基于子系统具有不同时间刻画尺度的切换控制策略；设计算法实现对相关结果的仿真验证。研究结果发展和完善了网络化动态供应链系统的切换控制理论，对一类工程实践具有指导意义。