Authors & Affiliations
Arkadov G.V.1, Pavelko V.I.1, Povarov V.P.2, Slepov M.T.2
1 Scientific
and Technical Center “Diaprom”, Obninsk, Russia
2 Rosenergoatom JSC Novovoronezh NPP, Novovoronezh, Russia
Arkadov G.V.1 — Deputy Director, Cand. Sci. (Tech.), Cand. Sci. (Econ.).
Pavelko V.I.1 — Deputy Director, Cand. Sci. (Tech.).
Povarov V.P.2 — Deputy General Director, Director, Dr. Sci. (Tech.).
Slepov M.T.2 — Head of the Department, Cand. Sci. (Tech.). Contacts: 1, South Industrial Zone, Novovoronezh, Voronezh region, Russia, 396072. Tel.: +7 (47364) 7-30-24; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Abstract
In-reactor neutron measurements occupy a
special place in the projects of Russian WWER reactors. This is a huge number
of direct charge sensors mounted in the active zone. Their very weak currents
are delivered via long lines to the in-reactor control system, where they are
processed by detailed and complex certified codes. As a result, the volumetric
energy release field is restored, according to which the core is controlled in
real time under operational conditions and, in particular, the reserve before the
heat transfer crisis is automatically controlled. In addition, the noise
component of the direct charge sensors current carries additional diagnostic
information about the active zone. Noise monitoring is passive by definition,
i.e. the noise system does not generate any control signals. Therefore, it is
better to develop such a system on the already functioning WWER-1200, where
experience and significant scientific and engineering potential have been
accumulated. Information about the state of the core from the noise monitoring
system will be important for developing intelligent operator support systems (IOSS)
at new power units with WWER-1200.
Keywords
neutron-noise control method, fuel assemblies, neutron measurement channel, in-reactor control system, in-reactor noise diagnostics, direct charge sensor, vibration monitoring system, neutron flux
monitoring equipment, ionization chamber, auto spectral power density, acoustic standing wave, regulatory bodies, control and protection system, assembly of in-reactor detectors, commissioning tests, intelligent operator support system, sink-structure
Article Text (PDF, in Russian)
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UDC 621.039.4
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2022, issue 1, 1:7
