Dynamic simulation and control studies of CPR1000 reactor core with advanced MSHIM control strategy

Optimization of rapid power reduction (RPR) design for advanced pressurized water reactor

“…In the later designed second-generation and thirdgeneration nuclear power plants, there is a rapid power reduction function. Release some control rods after a load rejection signal occurs to quickly reduce the reactor power to below 50%, thereby avoiding shutdown conditions after shutdown [2]. This improvement can enable the unit to control the reactor at a lower power level (around 30%) through bypass control, eliminating the need for the unit to go through the operational steps of restoring all control rods, and reducing the forced shutdown time caused by entering the iodine pit at the end of its lifespan.…”