摘要
为提高分布式电能质量管理系统中数据同步性能,提出了一种高性能的多级异构电能质量数据库同步方法。首先针对电能质量数据的特点,建立了基于事件驱动的多级异构数据库同步模型,然后提出了基于持久化消息队列的数据可靠同步方法,给出了基于事件日志的数据一致性检查和恢复算法,实现了海量电能质量数据在多级异构数据库中的高效同步。分析表明,该方法能有效提高多级异构电能质量数据库的同步性能。
One high performance synchronization method for hierarchy heterogeneous power quality databases is proposed,which is useful for improve the data synchronization performance of distributed power quality management systems.Firstly,a hierarchy heterogeneous databases synchronization model is presented,which is according to the characteristics of power quality data,then,a dependable data synchronization method is proposed,which is based on the persistence message queues,and then,an event log based data consistency checking and recovering algorithm is presented,which implement high performance synchronization for massive power quality data in hierarchy heterogeneous databases.Analysis shows that,the method can effectively improve the synchronization performance of hierarchy heterogeneous power quality databases.
出处
《电力科学与工程》
2010年第10期21-25,共5页
Electric Power Science and Engineering
关键词
电能质量
数据同步
多级异构数据库
事件驱动
power quality
data synchronization
hierarchy heterogeneous databases
event driven
