Overview of Real-Time Database Management System Design for Power System SCADA System

A supervision control and data acquisition (SCADA) system is a communication and control system used for monitoring, operation and maintenance of energy infrastructure grids. Compared with traditional applications, a SCADA system has a harsh deadline for critical tasks. There is special time constraint for the real time database used in a SCADA system. The real time database in SCADA extends traditional database to include in-memory database. Such real time database management are designed to operate in the harsh environment of real-time systems, with strict requirements for resource utilization, and are ready to provide the performance and reliability required by real-life applications. In this paper, the main principle of real time database has been introduced. Its implementation in power system SCADA is discussed and a sample database is briefly introduced