基于混合通信网的主动配电信息物理系统可靠性评价

Reliability Simulation of ADN Cyber-Physical System Based on Hybrid Communication Network

随着主动配电网研究的深入,研究主动配电网混合信息物理系统信息域精细化建模与可靠性评估方法具有十分重要的理论价值与现实意义。该文首先基于主动配电网故障的自愈控制方式,分析了故障过程中信息域对信息物理系统（cyber-physical system,CPS）的影响。建立基于混合通信网的、考虑路由转移和复杂故障因素的信息系统可靠性模型,并基于此分析了信息性能对CPS可靠性的影响。考虑到主动配电网分布式发电（distributed generation,DG）的运行特性、信息域离散特性以及计算效率,对信息域与分别采用非序贯与序贯蒙特卡罗法抽样,并利用工业以太网建立测试系统,验证了信息域传输有效性对主动配电网信息物理系统的间接影响,并分析了信息域元件重要度、接入网负载率、结构以及传输技术对主动配电网信息物理系统可靠性的影响,研究成果可为主动配电网规划和运行提供有效技术支撑。

With the in-depth study of the active distribution network（ADN）,it is of great theoretical and practical significance to study the modeling of the information domain and the reliability evaluation of active distribution cyberphysical system（CPS）.This paper analyzed the impact of information component failures on the CPS based on the fault self-healing control process.Then an information system reliability model was established considering hybrid communication network route and complex fault.Based on this model,this paper analyzed the influence of information transmission performance on the reliability.Considering the operation characteristics of distributed generation（DG） and the discretization of information data,the non-sequential and sequential Monte Carlo method were used for information domain and physical domain simulation respectively.And a test system was established based on industrial Ethernet to simulate the interaction effect.This paper had analyzed the influence of information component importance,network load,structure and communication technology on the reliability of CPS.The research results can provide technology support on the active distribution network planning and operation.