Application of particle filtering for prognostics with measurement uncertainty in nuclear power plants

• Main Authors: Gibeom Kim, Hyeonmin Kim, Enrico Zio, Gyunyoung Heo
• Format: Article
• Language: English
• Published: Elsevier 2018-12-01
• Series: Nuclear Engineering and Technology
• Online Access: http://www.sciencedirect.com/science/article/pii/S1738573318302742

For nuclear power plants (NPPs) to have long lifetimes, ageing is a major issue. Currently, ageing management for NPP systems is based on correlations built from generic experimental data. However, each system has its own characteristics, operational history, and environment. To account for this, it is possible to resort to prognostics that predicts the future state and time to failure (TTF) of the target system by updating the generic correlation with specific information of the target system. In this paper, we present an application of particle filtering for the prediction of degradation in steam generator tubes. With a case study, we also show how the prediction results vary depending on the uncertainty of the measurement data. Keywords: Prognostics, Particle filtering, Model-based method, Steam generator tube rupture, Nuclear power plant