Research On Fault Propagation Characteristics Of Industrial Symbiotic Water Network Based On Complex Network

In view of the high coupling of industrial symbiotic water network,if a variable is abnormal,it is easy to cause the water quality and quantity of the final product to be substandard after diffusion,which will not only affect the normal operation of industrial symbiotic water network,but also pollute the external environment.Therefore,this paper proposes to combine the industrial symbiotic water network system with the complex network theory,and study the fault propagation characteristics of industrial symbiotic water network from the topological structure properties of static network and sequential network respectively.Firstly,based on the complex network theory,the water network model of industrial symbiosis is constructed.Considering the influence of fault propagation probability and network topological structure,the fault propagation intensity of nodes in industrial symbiotic water network is determined.According to the degree and medium number of nodes in the network,the high load nodes of industrial symbiotic water network are determined;according to the water quality nodes in the network,the fault nodes of industrial symbiotic water network are determined.Fault attack and maximum load attack are adopted for fault node and high load node of water network respectively.Ant colony algorithm is used to solve the high risk fault propagation path of industrial symbiotic water network.Secondly,based on the traditional fault source location methods are mostly based on the static network model,ignoring the consideration of the dynamic changes of nodes,which is easy to affect the prediction results of fault propagation,so this paper proposes a fault source location method based on time series network.On the basis of constructing the model of industrial symbiotic time series water network,the fault source of industrial symbiotic water network is identified by inversion of the fault source location algorithm of time series propagation process.On the basis of determining the fault propagation source,the simple diffusion model and consensus dynamics model are used to simulate the fault propagation process of industrial symbiotic water network,providing theoretical basis for the selection of the best observation node.Then,on the basis of Si model,the importance of fault propagation path of industrial symbiotic water network is evaluated based on the evaluation indexes of nodes and links.Finally,select a case to verify the analysis.Based on the static network,the industrial symbiotic water network is modeled,and the fault prone links in the network and the maximum risk propagation path after the fault occur are determined to effectively improve the comprehensiveness and accuracy of key variable identification;based on the sequential network,the industrial symbiotic water network is modeled,and the fault propagation source and the critical path after the fault occur are determined,and the static network model is used This method can improve the accuracy of fault source identification and provide certain theoretical basis and decision support for risk assessment and fault prevention of industrial symbiotic water network.