PI实时数据库在供电企业中的应用

实时数据库是实现供电企业管控一体化的桥梁。PI系统是商品化的实时数据库应用平台,在响应速度、可靠性、容量等方面具有极大优势。将PI系统和电力行业应用紧密联系起来,是用好PI系统关键。首先从PI实时数据库的特点和结构入手,分析了PI在供电企业的应用构架;之后针对目前实时信息集成模式中存在的重复开发、开放性差等弊端,从数据模型和数据库访问两个方面探讨了PI与IEC61970的结合,提出了实施方案。该方案符合电力信息集成的发展趋势,具有可行性。

Application of PI real-time database in power supply enterprise

Real-time database acts as a bridge between the control system and the information management system in power supply enterprise.Plant Information System is a commercial real-time database provided with excellent performance such as fast-access,high-reliability,and efficient-storage.It is critical to combine the characteristics of PI and the requirements of the power industry when applying PI system.On this view point,this paper introduces the system structure and key modules of PI,and then presents the typical use of PI in the power supply enterprise.To improve openness of the whole information integration system,it discusses the design of the PI system that conforms to IEC61970 in such aspects as model definition and data access.The problems should be paid attention to and relevant suggestions for implementing PI system abide by IEC61970 are pointed out.At last,a feasible solution which meets the requirements of power information integration is brought forward.