摘要
介绍一种面向能量管理系统(EMS)的高性能实时数据库设计方案。该方案以关系模型为基础进行内存库组织上的设计改进,从而支持电力模型的物理包容关系,支持符合IEC61970标准的物理模型、对象模型,支持EMS所特有的多研究态、多计算模式需求,达到了单表查询200万次/s、面向对象查询20万次/s的访问实时性,以及地级电网250个连接母线规模下网络分析计算时间小于400ms的实用化应用能力。
A practical solution is presented for designing a high performance distributed real-time database, which delicately supports energy management system （EMS）. Based on traditional relational database model, this design scheme imports some novel concepts, such as table set and attribute set. So it supports both the physical model and the objective model that are defined in IEC 61970. It also supports multiple study modes and multiple calculation modes that characterize the EMS applications. The practicality of the design has been approved through a system test on a simulated electric network with 250 buses. The test result shows that 2 million read transactions per second is achieved in single table mode and 200 thousand read transactions per second is achieved in object oriented mode, also all the EMS calculations are finished within 400 ms.
出处
《电力系统自动化》
EI
CSCD
北大核心
2007年第10期87-91,共5页
Automation of Electric Power Systems
关键词
EMS
实时数据库
表集
域集
IEC
61970
energy management system （EMS）
real-time database
table set
attribute set
IEC 61970
