Channel level hierarchical dynamic routing method of electric power automation front-end system

Abstract

The present invention discloses a channel level redundancy-backup and loading-sharing front-end hierarchical dynamic routing method which not only can realize the channel level redundancy backup, but also can support the loading sharing of the front-end service node for increasing the reliability and the processing capacity. The front-end system of the electric power automation device is introduced with a hierarchical design mode. The downmost bottom layer is a device management layer of the communication medium. Then a frame layer, an agreement explaining layer and a data processing layer are provided sequentially. The device layer mainly shields the communication characteristic of various different mediums and provides the unified data reading-in and writing-out interface of the frame application. The realizing of the frame layer mainly relates to the management of the channel. The data transmission characteristics of various applications are integrated. The system supports a plurality of operating modes. Each channel can be managed singly or integrally. The agreement explaining layer completes the analysis of the various different aggrements and provides an unified data interface for the data processing layer. The front-end system of the electric automation device supports a plurality of front-end nodes and the group management. The front-end nodes and the node groups have a parallel operation mode based on the channel management and realize the data shunting and loading sharing based on the channel.

Description

technical field [0001] The invention relates to the technical field of pre-processing in electric power automation systems, in particular to a multi-layer dynamic routing selection and channel-level redundancy backup technology for devices, channels, and front-end nodes in the power automation system. Background technique [0002] In a modern society, the power system is an important infrastructure to ensure the normal operation of the national economy. Large-scale power outages in the power system will have a direct and significant impact on people's lives and the national economy. Power system monitoring is one of the important means to effectively ensure the reliability of power supply, and the normal operation of the centralized control system depends on the data acquisition and pre-processing system. Therefore, the pre-acquisition and processing system is a key part of the automation system. [0003] In the existing power automation master station system, the front-end...

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Problems solved by technology

[0004] Channel construction Due to construction and planning reasons, there may be different media for mutually backup channels, for example, the main channel uses optical fiber network, while the backup channel uses dial-up network, etc., and there may be different protocol methods. The support of this mixed mode has problems in its flexibility, and it is difficult to achieve dynamic hot backup and switching

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