Developing neutron-flux control algorithms for the reactor in the second unit at the Beloyarsk nuclear power station

Results are presented on the radial and azimuthal power-production patterns in the AMB-200 reactor at the Beloyarsk nuclear power station together with the introduction of an operational-harmonic monitoring system based on the existing direct-charge detectors. Figures show a structural diagram for the system for harmonic monitoring, and behavior of the first azimuthal harmonic and position of the automatic power regulator rods. The studies provide an adequate model and upgrade the conception of the power control on the basis of these features, and thus improve the control effectiveness.