Online estimation of the linear power of a pressurized water reactor by digital processing of gamma-metric signals
Description
This thesis presents an inverse filter correcting the instrumental errors of a rod of 8 gamma (radiation) thermometers which are internal power sensors of pressurized water reactors. The algebra-differential model of this filter is linear, stable and adaptive to the evolutions of the characteristics of the sensors. Numerical simulation of this model using the NEPTUNIX 2 language gives very low dynamic errors for known transients. We have presented three types of numerical processing of this filter: 1) A global processing for numerical resolution of the algebra-differential system implantable on a minicomputer. 2) Processing decoupled from thermometers by digital deconvolution filtering implantable on a microprocessor. 3) A sequential processing of thermometers by digital filtering implantable on a microprocessor. The thermometer coupled with the proposed treatments is among the most precise power instrumentation
Abstract (French)
Cette these presente un filtre inverse correcteur des erreurs instrumentales d'une canne de 8 thermometres gamma (rayonnement) qui sont des capteurs internes de puissance des reacteurs a eau pressurisee. Le modele algebro-differentiel de ce filtre est lineaire, stable et adaptatif aux evolutions des caracteristiques des capteurs. La simulation numerique de ce modele par le langage NEPTUNIX 2 donne des erreurs dynamiques tres faibles pour des transitoires connus. Nous avons presente trois types de traitement numerique de ce filtre: 1) Un traitement global pour resolution numerique du systeme algebro-differentiel implantable sur miniordinateur. 2) Un traitement decouple des thermometres par filtrage numerique de deconvolution implantable sur microprocesseur. 3) Un traitement sequentiel des thermometres par filtrage numerique implantable sur microprocesseur. Le thermometre couple aux traitements proposes se situe parmi les instrumentations de puissance les plus precises. (auteur)Files
53049220.pdf
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Additional details
Additional titles
- Original title (French)
- Estimation en ligne de la puissance lineique d'un reacteur a eau pressurisee par traitement numerique de signaux gammametriques
Publishing Information
- Imprint Pagination
- 285 p.
- Report number
- FRCEA-TH--14140
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 53049220
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S97: MATHEMATICAL METHODS AND COMPUTING;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ACCURACY; COMPUTERIZED CONTROL SYSTEMS; COMPUTERIZED SIMULATION; CONTROL ELEMENTS; DATA PROCESSING; FRANCE; GAMMA DETECTION; NUCLEAR POWER PLANTS; NUMERICAL ANALYSIS; ON-LINE MEASUREMENT SYSTEMS; OPTIMIZATION; PROGRAMMING LANGUAGES; PWR TYPE REACTORS; REACTIVITY METERS; REACTOR CONTROL SYSTEMS; REACTOR KINETICS; RELIABILITY; THERMOMETERS; TRANSIENTS
- Descriptors DEC
- CONTROL SYSTEMS; DETECTION; DEVELOPED COUNTRIES; ENRICHED URANIUM REACTORS; EUROPE; KINETICS; MATHEMATICS; MEASURING INSTRUMENTS; METERS; NUCLEAR FACILITIES; ON-LINE CONTROL SYSTEMS; ON-LINE SYSTEMS; POWER PLANTS; POWER REACTORS; PROCESSING; RADIATION DETECTION; REACTOR COMPONENTS; REACTORS; SIMULATION; THERMAL POWER PLANTS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WESTERN EUROPE
Optional Information
- Notes
- 30 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses