Modeling of Smart Grid traffics using non-preemptive priority queues

摘要

The Smart Grid which is a digitally-enhanced version of the traditional electric grid will provide the infrastructure to support financial, informational, and electrical transactions among consumers, assets, and those users who have authorized access. Smart grid has different capabilities. It can be used to monitor and control the national electrical network. By efficient control of electrical network it is possible to maximize the throughput of the system and reduce network energy consumption. n the smart grid networks, different traffics with different requirements are flow in the network. There are multiple smart grid applications which are running in the network simultaneously. As there are different traffic types with different quality of service requirements in the smart grid, in this paper we propose a service differentiation unit which can support different services in smart grid networks. The proposed model can support the already mentioned traffic classes. The Class1 is assigned to high priority real time traffic such as teleprotection. Alarm data or remote real-time monitoring and control with SCADA systems and DCS systems are assigned to Class 2. Surveillances camera and emergency connectivity through mobile base stations are some sample applications of Class 3. Metering data and event notification are assigned to Class 4. Finally, Class 5 is for VoIP traffics. Using Non-Preemptive Priority Queues, the smart grid traffics are simulated. Simulation results confirm that this type of queuing discipline is proper for smart grid traffics.