Way to improve the quality of temperature regulation during warming up of heat carrier in a marine reactor plant
Onboard the ships and vessels with nuclear reactor plants, the reactor plants with water!cooled power reactors, once!through steam generators and primary circuit pressure compensating systems are mainly used. In the heating mode, the control system is to sustain the required rate of heat carrier temperature rise, which is safe for reactor core and other elements of reactor plant elements.Values of differential efficiency for one group of shim rods may change by a factor of 5!10, depending on its position in a reactor core. These aspects should be taken into consideration during development of control algorithms for heating process. To improve the quality of transient processes in the mode of heating, it is proposed to use in the control law, in addition to the existing signals, the value of derivative of actual power deviation from a preset value.