Research On Real-time Database System And Its Application On Historical Data Station In Power Plant

With the rapid development of power industry, Distributed Control System (DCS) is widely used in industrial control field, As an important component of DCS system, historical data station play an extremely important role in electricity and management. At the same time, the ceaseless development of the power system need higher dependability on the historical data station system. Historical data station must be adapt to changes, some famous company developed their own one. So it will be valuable to develop a new historical data station with independent intellectual property rights based on Real-time database, and the research is also useful to break the foreign technical barrier.In order to set up the architecture model for our historical data station based on active real-time database technology, after current real-time database technology is examined, the real-time database technology is theorized and the real-time data characteristic and transaction characteristic is examined in detail. These provide a theoretical basis for real-time database architecture model.On the basis of real-time theory, article analyze the practical application of the real-time database technology to the historical data station. In the article, the architecture of the new historical data station system is presented, then the key technology is discussed in detail such as real-time transation dispatching, the concurrency control and historical data compressed storage in real-time database.In the end, the new historical data station system based real-time database is developed. We summarized the considerable practical value of the real-time theory and technology in historical data station system, followed by a brief description that it has a pomising prospects in other power real-time information system.