Strategy for Core Control when PWR Returning to Full Power Operation after Shutdown

There are difficulties in the control of reactor core when the reactor returning the full power operation after shutdown during end of cycle.The physics factors and process that with effects on the control have been analyzed,and a strategy,which based on the selection of recriticality parameters with using of power bank withdraw and boron concentration dilution,is applied.The test results demonstrate the validity of the strategy,which could be used in the same condition of other PWR nuclear power units.