Research on Application of Remote IO Technology in Nuclear Power Plant

Abstract

The technology of remote I/O system has the characteristics of good physical dispersion, high reliability, high accuracy of measurement and control, openness, strong function, high degree of intelligence and strong communication ability. Remote I/O technology, as a mature bus technology, has been widely used in thermal power, chemical industry, metallurgy, petroleum and other fields. All systems and sub items in nuclear power plant are still using the traditional distributed control system (DCS), some signals by hardwire have a long distance transmission, which against economic and signal stability. In this paper, from the plant and system environment restriction condition, functional requirements (Operational protection requirements), system performance requirements, installation requirements, equipment identification, cost and other system interface and other factors, to analyze the feasibility of remote I/O technology used in nuclear power plant. Determine the scope of the implementation of remote IO technology for nuclear power plant. Finally, pumping station as an example, the implementation plan of using the remote I/O technology under the various technical route of nuclear power plant was studied in detail.