Ageing Research for Upgrades Using Digital I&c Systems of Nuclear Power Plant
نویسندگان
چکیده
The paper describes the studies on the ageing research for upgrades using digital I&C system. After the ageing analysis of QNPP reactor protection system, we will upgrade the analog reactor protection system using digital system. The paper also describes the digital modernization oAf QNPP reactor protection system and the ageing study of the QNPP digital reactor protection system.
منابع مشابه
Modeling Techniques for a Risk Analysis Methodology for Software Systems
The U.S. Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research is interested in developing approaches towards analyzing digital instrumentation and control (I&C) systems for nuclear power plant system upgrades. (Arndt 2002) These approaches are directed towards analyzing the changes in risk involved with using digital systems, which include software and hardware concerns. Th...
متن کاملNeutron Monitoring System and Rod Control System Upgrades for Plant Life Extension
Most nuclear power plants in operation were built in the 1970’s and 1980’s. Plants of this vintage would require extensive upgrade for the instrumentation and control (I&C) to be able to support plant life extension. The most challenging aspect of I&C upgrades for these plants is the upgrade of the neutron monitoring system (NMS) and the Reactor Manual Control System (RMCS). These are specializ...
متن کاملInstrumentation and Control (I&C) Systems in Nuclear Power Plants: A Time of Transition - NTR2008 Supplement
Progress in electronics and information technology (IT) has created incentives to replace traditional analog instrumentation and control (I&C) systems in nuclear power plants with digital I&C systems, i.e. systems based on computers and microprocessors. Digital systems offer higher reliability, better plant performance and additional diagnostic capabilities. Analog systems will gradually become...
متن کاملUse of STPA in digital instrumentation and control systems of nuclear power plants
Nuclear power plant operators increasingly face the task of replacing their instrumentation and control systems with modern (digital) systems. In this work the "System Theoretic Process Analysis" (STPA) risk analysis method was adapted and amended to enable it to be used in digital instrumentation and control systems. 1 Background Information Nuclear power plant operators increasingly face the ...
متن کاملReliability methods in nuclear power plant ageing management
The aim of nuclear power plant ageing management is to maintain an adequate safety level throughout the lifetime of the plant. In ageing studies, the reliability of components, systems and structures is evaluated taking into account the possible time-dependent degradation. The phases of ageing analyses are generally the identification of critical components, identification and evaluation of age...
متن کامل