内存数据库eXtremeDB在风电场中的应用研究

Application of main memory database eXtremeDB to wind farms

将内存数据库eXtremeDB应用于数据变化频繁的风电场能量管理系统中,可满足其对数据实时性的要求。设计了实时数据系统的系统结构,数据被采集到SCADA服务器的eXtremeDB中,并通过网关存储到磁盘数据库中,根据CIM模型规范对数据库建模,以保证系统之间的互操作和兼容性。通过eXtremedb应用程序打开数据库,并使用xsql服务器程序使远程的客户端可通过eXtremedb的ODBC驱动操作eXtremedb数据库。测试结果表明,设计的实时数据系统有较快的访问速度,能满足风电场能量管理系统的实时性要求。

Applying the main memory database eXtremeDB to the wind farm＇ s Energy Management System （EMS） with frequently-changing data can meet its requirements of real-time information. The architecture of the real-time data system was designed in the following way： data were acquired to the eXtremeDB in the SCADA server and stored in the disk database through gateway. To ensure interoperability and compatibility between systems, database modeling was based on the CIM mode. EXtremeDB database can be opened by eXtremeDB application, and xsql server application can make remote clients manipulate the database via ODBC driver. Test results showed that the designed realtime data system has faster access speed and can satisfy the real-time demand of EMS of wind farms.