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http://dx.doi.org/10.5351/KJAS.2016.29.7.1385

A study on early faults detection of pressurizer pressure control system using MTS  

Cha, Jae-Min (Plant SE Team, Institute for Advanced Engineering (IAE))
Kim, Joon-Young (Plant SE Team, Institute for Advanced Engineering (IAE))
Shin, Junguk (Plant SE Team, Institute for Advanced Engineering (IAE))
Yeom, Choongseob (Plant SE Team, Institute for Advanced Engineering (IAE))
Kang, Seong-Ki (MND)
Publication Information
The Korean Journal of Applied Statistics / v.29, no.7, 2016 , pp. 1385-1398 More about this Journal
Abstract
A pressurizer is a major equipment system in a nuclear power plant (NPP) and controls the reactor cooling system pressure within the allowable range. Faults in the pressurizer can be critical to the NPP; therefore, early fault detection in the pressurizer is significant for NPP safety. This study applies Mahalanobis Taguchi system (MTS), which is one of the promising pattern classification methods, based on the Mahalanobis distance concept and Taguchi quality engineering theory to the early fault detection problem of the pressurizer pressure control system. We conducted experiments using data from full scope NPP simulator based on a pressurizer pressure transmitter faults scenario to validate the faults detection performance of MTS. As a result, MTS can rapidly detect the faults compared to conventional faults detection based on single sensor monitoring.
Keywords
nuclear power plant (NPP); pressurizer; pressurizer pressure control system; pressurizer pressure transmitter; Mahalanobis Taguchi system (MTS); early faults detection;
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