Two-layer QoS-guaranteed backbone communication network modeling for power protection services

2018 International Conference on New Energy and Future Energy System

Jin, G.X.^1 ; Li, J.S.^1 ; Lu, J.^2 ; Lin, W.W.^2 ; Cai, P.^2

State Grid Economic Technology Institute Limited Company, Beijing

102209, China^1

School of Electric and Electronic Engineering, North China Electric Power University, Beijing

102206, China^2

关键词: Communication network model;    Optimization goals;    Optimization modeling;    Optimization modelling;    Power system protection;    QoS (quality of service);    Service quality assurances;    Two-layer capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/188/1/012102/pdf
DOI  :  10.1088/1755-1315/188/1/012102

来源: IOP

【 摘 要 】

In order to ensure that the smart grid backbone communication network architecture model has a good universality, a two-layer QoS (Quality of Service) optimization modelling method of the backbone communication networks for power protection services is proposed. Firstly, taking the communication network capacity as a constraint, the minimum value of time-QoS of the system protection service is the optimization goal, and a two-layer capacity optimization model of service quality assurance is constructed. Secondly, the optimization model is simplified and a simulation experiment is designed. The validity of the proposed method is verified by numerical examples. The simulation results of the optical layer and the electrical layer satisfy the power system protection time delay specified in the power system protocol should meet the requirement of less than 50 ms.