变电站轮询式通信网络的MATLAB仿真研究

本文根据变电站通信网络的特点，提出了使用离散事件仿真的方法研究网络性能的新思路。以此为指导，本文以变电站内部轮询网络为例，采用队列表示方法对该通信网络进行抽象以便明确研究目标，然后使用MATLAB的SIMULINK软件包对通信网络完成了图形化的仿真建模工作，针对所得的仿真结果进行分析比较，得出了一些较有意义的结论。最后，本文将软件仿真结果和排队论指导结果作了对比，证明了本仿真模型和实际系统是相吻合的。

SIMULATION AND ANALYSIS BY MATLAB ON POLLING COMMUNICATION NETWORK IN SUBSTATIONS

Considering the particularity of the networks in substation automation systems,this paper gives a new approach to evaluate the network performance by discrete event simulations.Then with the example of a polling network in a substation,this paper uses queueing system principle to abstract the object for convenience.After that,the graphical simulation modelling for the network is completed using the SIMULINK package of the MATLAB software.By analysing the results of the simulation,some useful conclusions have been given.And finally both the simulation result and the theoretical result are compared to prove the coincidence between the simulation model and the actual network system.