基于可靠性最优的地区调度数据网第二接入网设计

Design of Second Access Network of Regional Dispatch Data Network Based on Reliability Optimization

摘要:

电力调度数据网作为电力监控系统主要的数据传输通道，其可靠性直接影响电网调控相关工作。建设地区调度数据网第二接入网可有效提升数据传输可靠性、自动化通道可用性及网络安全性等性能指标。通过分析设备冗余程度可靠性、路由策略可靠性和节点部署位置可靠性，提出一种地区调度数据网网络可靠性计算方法。首先，基于网络可靠性最优提出地区调度数据网第二接入网设计原则和流程，综合考虑调度数据网现有网架结构，得出地区调度数据网第二接入网新增节点数量，完成冗余程度可靠性分析；然后，分析私网路由策略和公网路由策略，得出同现有网架结构协调统一的高可靠性路由策略方案，根据地区调度数据网拓扑结构得出不同节点可靠性计算方法，通过调整节点位置分布得到可靠性较高的地区调度数据网第二接入网候选设计方案；最后，通过业务校核选出可靠性最高的设计方案。

关键词:调度数据网;第二接入网;业务接入;网络拓扑;设计原则

Abstract:

As the main data transmission channel of power monitoring system, the reliability of power dispatching data network directly affects the work related to power grid regulation. The construction of the second access network of regional dispatching data network can effectively improve the performance indicators such as data transmission reliability, automation channel availability and network security. By analyzing the reliability of equipment redundancy, routing strategy and node deployment location, a network reliability calculation method of regional dispatching data network is proposed. Based on the optimal network reliability, the design principle and process of the second access network of regional dispatching data network are put forward. Considering the existing network structure of dispatching data network comprehensively, the number of new nodes of the second access network of regional dispatching data network is obtained, the redundancy reliability analysis is completed, and the private network routing strategy and public network routing strategy are analyzed. The high reliability routing strategy scheme coordinated and unified with the existing grid structure is obtained. According to the topology of regional dispatching data network, the reliability calculation methods of different nodes are obtained. By adjusting the node location distribution, the alternative design scheme of the second access network of regional dispatching data network with high reliability is obtained too. Finally, the design scheme with the highest reliability is selected through service verification.

Key words:dispatch data network; second access network; business access; network topology; design principle