微网分布式控制多跳无线网络拓扑优化  

Microgrid Distributed Control Multi-Hop Wireless Network Topology Optimization

作　　者：孙伟[1] 张磊[1] 李奇越[1] 李帷韬[1] 高博 丁津津 SUN Wei;ZHANG Lei;LI Qiyue;LI Weitao;GAO Bo;DING Jinjin(School of Electric Engineering and Automation,Hefei University of Technology,Hefei 230009,China;Electric Power Research Institute,State Grid Anhui Electric Power Company,Hefei 230022,China)

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009 [2]国网安徽省电力公司电力科学研究院,安徽合肥230022

出　　处：《电力信息与通信技术》2022年第1期13-19,共7页Electric Power Information and Communication Technology

基　　金：国家自然科学基金项目(51877060);国家电网有限公司总部科技项目资助“异构网络和异构数据融合的变电站一体化智能运维关键技术研究与应用”(SGTYHT/18-JS-206)。

摘　　要：微网分布式控制系统可采用无线多跳网络实现相邻节点的信息交互。当需要获取各分布式单元状态时,各节点须采用多跳传输的方式,将数据汇集到遥测终端。但在不同通信拓扑条件下多跳传输的延时也不尽相同,不能保证满足电力通信标准的需求。文章以数据传输延时需求为约束,以最小化多跳网络端到端传输延时为目标,研究微网分布式控制系统多跳无线网络拓扑优化方法。首先,依据IEEE802.11标准建立邻节点间信道竞争访问的延时模型;然后根据多跳通信的路径,建立多跳传输的端到端传输延时模型;最后,采用粒子群算法获取各个节点最优的传输距离,进而得到最优的微网分布式多跳无线网络拓扑。仿真结果表明,提出的算法使网络拓扑优化后网络通信延时大幅降低。The micro-grid distributed control system can realize the information exchange between adjacent nodes by using wireless multi-hop network.When it is necessary to obtain the status of each distributed unit,each node must adopt a multi-hop transmission method to gather the data to the telemetry terminal.However,the delay of multi-hop transmission varies under different communication topologies,and it cannot guarantee to meet the requirements of power communication standards.This paper takes the microgrid distributed control system as the object.Constrained by the demand for data acquisition delay,with the goal of minimizing the end-to-end transmission delay of the multi-hop network,the network topology optimization method of microgrid distributed control multi-hop wireless network is studied.First,the channel competition access between adjacent nodes is established according to the IEEE802.11 standard.Then,according to the multi-hop communication path,the end-to-end transmission delay model of multi-hop transmission is established.Finally,the particle swarm optimization algorithm is used to obtain the optimal transmission distance of each node,and then the optimal distributed multi-hop wireless network topology is obtained.The software simulation results show that the algorithm proposed in this paper greatly reduces the network communication delay after the network topology is optimized.

关 键 词：微网 分布式多跳无线网络 拓扑优化 粒子群算法 

分 类 号：TN925[电子电信—通信与信息系统] TM73[电子电信—信息与通信工程]