METHOD FOR CONSTRUCTING THE PSEUDO HOT PIN POWER DISTRIBUTION USING DETECTOR-SIGNAL-BASED PLANAR RADIAL PEAKING FACTOR IN COLSS

The present invention relates to a method for calculating planar peaking factors using real-time signals of an in-core detector of an in-core instrumentation system. The method includes (a) step of defining a planar radial peaking factor (PLRAD) based on a signal of the in-core detector and expanding the definition corresponding to the number of nodes in a core operating limit supervisory system (COLSS), wherein, when F^K_xy or the PLRAD is is calculated based on mathematical formula 6 only using the signals of the in-core detector not using the radial peaking factor look-up table. According to the present invention, it is possible to calculate the intrinsic pseudo hot pin power distribution accurately of the COLSS by defining the PLRAD based on the signal of the in-core detector and expanding the definition according to the number of nodes in the COLSS. [Reference numerals] (AA) Correct the location of texts; (BB) Complete a drawing; (CC) Performing configuration of pseudo hot pin power distribution by expanding the calculated PLRAD to correspond to the number of nodes in COLSS; (DD) END