火电厂SIS系统中实时数据库平台的选择

实时数据库平台是厂级监控信息系统(SIS)的核心部分，它的合理选择对于SIS建设具有重要意义。该文在介绍火电厂SIS系统的基础上，提出实时数据库平台的选择应该根据数据存储效率、系统访问结构和接口技术等方面进行。同时以某电厂的SIS建设为例，阐述了该电厂的SIS系统结构和实时数据库平台的一系列具体解决方案，讨论和分析如何采取措施满足数据的实时性要求、多系统间的连接技术、数据安全性和网络安全性等重要问题，为其他电厂选择和建立实时数据库平台提供了借鉴。

SELECTING THE SCHEME OF REAL-TIME DATABASE FOR SIS IN A POWER PLANT

Real-time database is the kernel of supervisory information system (SIS), and its selection is important in SIS's construction. In this paper, we narrate supervisory information system and present a real-time database which is selected according to the data storage efficiency, access mode of system, interface technique and so on. Based on the actual situation of some power plant, the structure of SIS and a series of selection schemes of real-time database are discussed in details. Especially timeliness and security in real-time database, the connection method between systems and network security are analyzed, that will be helpful in developing real-time database platform in other power plants.