Analysis of Amelioration for R Rod Disturbance Problem of Average Temperature Control System

After the implementation of the advanced fuel management amelioration,the adoption of 4-batch fuel refueling scheme,in Ling’ao Nuclear Power Plant,the preliminary analysis on the frequent disturbance problem on R bank of the average temperature control system are conducted,the implementation of amelioration is summarized,and the incompatible part with the initial reactor design after the amelioration is analyzed.The results show that the optimization on the lead and lag parameters meet the relevant safety requirements.