摘要
为满足智能电网对海量状态监测数据搜索的实时性要求,文章结合智能电网海量状态监测数据特点,提出一种分布式实时数据库动态索引技术。将No SQL数据库的分布式索引技术、并行处理技术以及高可用性技术(HA)与当前多个单体数据库构建的存储网络相结合,采用动态反馈机制自动完成节点间的负载均衡,通过并行计算构造动态索引,实现了电网状态监测点数据在分布式环境中的快速检索与自调整功能,并通过屏蔽底层数据库网络的复杂结构,为用户提供了统一的数据搜索接口。测试结果表明,该技术满足智能电网业务系统对数据库搜索的实时性和扩展性要求。
In order to satisfy the real-time requirement of for the search of massive state monitoring data in smart grid, considering the characteristics of massive state monitoring data of smart grid, this paper proposes a distributed real-time database dynamic index, combined with No SQL database distributed index technology, parallel processing technology high availability（HA） technology and multiple monomer databases storage network. Dynamic feedback mechanism is used to automatically complete the load balance between nodes, and the dynamic index is constructed by parallel computing. Thus the fast retrieval and self-adjusting function of the data in the distributed environment is realized. The complex structure of the underlying database network is shielded to provide a unified data interface for users to search. The proposed technology can meet the database searching real-time and scalability requirements of business system of smart grid.
出处
《电力信息与通信技术》
2016年第12期38-45,共8页
Electric Power Information and Communication Technology
基金
南方电网公司重点科技项目"基于大数据分析的电网主设备安全预警决策平台开发"(GX2014-2-0025)
关键词
分布式实时数据库
动态索引
动态反馈
负载均衡
高可用性
distributed real time database
dynamic index
dynamic feedback
load balancing
high availability
