Intelligent substation process layer network packet stream scheduling method and device

Abstract

The invention provides an intelligent substation process layer network packet stream scheduling method and device. The method comprises the steps of obtaining network packet streams, classifying the network packet streams and dividing the classified network packet streams into corresponding packet stream queues; outputting the packet stream queues corresponding to an absolutely priority to a second classifier according to first in first served, and carrying out weighted fair polling on the packet stream queues corresponding to a non-absolutely priority according to preset weight values corresponding to the packet stream queues, and then outputting the packet stream queues to the second classifier; dividing the packet streams into a high priority queue and a low priority queue by the secondclassifier; and processing the high priority queue and the low priority queue through absolutely priority queue, outputting a final packet stream queue, and outputting the corresponding packet streams to a network. According to the method and the device, the classification can be carried out according to information stream types, the most suitable forwarding formats are employed for different types of information streams, and the message transmission efficiency can be improved to the greatest extent even if an intelligent substation process layer network is congested.

Description

technical field [0001] The invention relates to the technical field of network transmission, in particular to a method and device for scheduling network packet flows in a process layer of an intelligent substation. Background technique [0002] In contemporary times, smart substations have replaced traditional substations and become the mainstream of substations. The monitoring, protection and control functions of smart substations have also entered a stage of comprehensive intelligence with the development of the network. Therefore, the realization of substation functions is extremely dependent on the substation secondary Real-time, safe and reliable network information flow. Due to the application of intelligent circuit breakers and electronic transformers, as well as the intelligence of secondary equipment such as protection control units, there is a large amount of data in the secondary network of substations. In the context of smart substation networking, the informati...

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Problems solved by technology

[0025] The present invention provides a smart substation process layer network packet flow scheduling method and device, which are used to solve various conflict problems caused by network pressure during the intelligent substation process layer network packet flow transmission process

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