AXIAL OUTPUT DISTRIBUTION CONTROL METHOD AND AXIAL OUTPUT DISTRIBUTION CONTROL AUXILIARY DEVICE

摘要

On the basis of an axial output distribution deviation (AOX,AOI), parameters DAOPX (=AOP-AOX), DAOIX (=AOI-AOX) are calculated. Then, on the basis of the parameters (DAOPX, DAOIX) and previously obtained allowable values (DAOPX_L, DAOIX_L), the movement of a control rod is controlled so as to guide the plot point of a locus of the parameter DAOPX and the parameter DAOIX toward the major axis of an ellipse plotted by the locus. Thus, the axial output distribution in a nuclear reactor is controlled by a simple operation with a clear target, and by only the afore-said controlling operation, oscillation of xenon can be simultaneously controlled and suppressed.