Research on Application of Sequence Control Strategy in Conventional Island System of Nuclear Power Plant

Abstract

Sequential control has been widely used in thermal power units. There are only few applied systems in CPR1000 nuclear power projects. The implementation and the characteristics of the sequential control technology are described through an engineering application example of sequential logic modules in the functional group level control utilized at the conventional island systems of a third generation nuclear power plant. The application of functional group-level sequential control can effectively reduce the operator’s work intensity and improve the automatic control level of nuclear power plants. The application in the nuclear power project provides a demonstration case for the sequential control strategy of large-scale adoption of conventional island systems in nuclear power plants, laying the foundation for the automatic start-up and shutdown of nuclear power plant units.