Application of noise analysis for sensor surveillance in Trillo NPP

Montalvo Martín, Cristina and Bermejo, J.A and Queral Salazar, José Cesar and Ortego, A. (2012). Application of noise analysis for sensor surveillance in Trillo NPP. In: "Reactor Noise Knowledge Transfer Meeting 2012", 16/10/2012 - 19/10/2012, Praga. ISBN 1805-6156. pp. 1-11.

Description

Title: Application of noise analysis for sensor surveillance in Trillo NPP
Author/s:
  • Montalvo Martín, Cristina
  • Bermejo, J.A
  • Queral Salazar, José Cesar
  • Ortego, A.
Item Type: Presentation at Congress or Conference (Article)
Event Title: Reactor Noise Knowledge Transfer Meeting 2012
Event Dates: 16/10/2012 - 19/10/2012
Event Location: Praga
Title of Book: Reactor Noise Knowledge Transfer Meeting 2012
Date: 2012
ISBN: 1805-6156
Subjects:
Faculty: E.T.S.I. Minas (UPM)
Department: Física Aplicada a los Recursos Naturales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

It is a known fact that noise analysis is a suitable method for sensor performance surveillance. In particular, controlling the response time of a sensor is an efficient way to anticipate failures and to have the opportunity to prevent them. In this work the response times of several sensors of Trillo NPP are estimated by means of noise analysis. The procedure applied consists of modeling each sensor with autoregressive methods and getting the searched parameter by analyzing the response of the model when a ramp is simulated as the input signal. Core exit thermocouples and in core self-powered neutron detectors are the main sensors analyzed but other plant sensors are studied as well. Since several measurement campaigns have been carried out, it has been also possible to analyze the evolution of the estimated parameters during more than one fuel cycle. Some sensitivity studies for the sample frequency of the signals and its influence on the response time are also included. Calculations and analysis have been done in the frame of a collaboration agreement between Trillo NPP operator (CNAT) and the School of Mines of Madrid.

More information

Item ID: 22881
DC Identifier: http://oa.upm.es/22881/
OAI Identifier: oai:oa.upm.es:22881
Deposited by: Memoria Investigacion
Deposited on: 18 Mar 2014 12:46
Last Modified: 24 Sep 2014 17:15
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