Integration of status monitoring and reliability analysis in the information systems of power plants

Abstract

Among the reasons for the utilisation of computer engineering in power plants is the continuous monitoring of the plant’s state. In the case of subsystems used in the area of critical safety one of the most important aspects of quality is the reliability of the systems. When designing such systems the realisation of safety parameters is essential, therefore these parameters are numerically expressed. Along with the modernisation of the power plants systems, the availability of state information about certain subsystems’ defective status is on the increase. Processing the status information and integrating it into the error-model, a model that follows the system’s actual state, can be obtained. By evaluating the model, the degree of the system’s degradation can be numerically determined. This degradation indicator gives important information about the gravity of the error-event(s) that occur.