FIELD: nuclear physics and engineering.
SUBSTANCE: present invention relates to a method for automatic control of power of a research nuclear installation in transient processes based on a working control signal. Signal is generated based on the sum of reaction signals to deviation of reactor power and to the rate of change of reactor power from preset values, in which, when a control signal for increasing reactivity is received, the control element is moved. When changing from one power to another, a different number of reactivity control elements is used, at the stage of transition from lower power to high power and vice versa, reactivity control is performed in turn by one of the group of reactivity control elements. Number of reactivity control elements involved in one cycle is selected based on maintaining uniformity of distribution of the fission field in the core of the research nuclear reactor and additionally at the stage of transition from lower power to higher power when the current power exceeds the threshold value by a predetermined value. When receiving a control signal for decreasing reactivity, the current value of reactivity is compared with the set limit on input of negative reactivity, and if the value exceeds the set limit, the group of reactivity control elements is moved.
EFFECT: improved quality of transient processes during automatic power control of a research nuclear reactor.
1 cl, 8 dwg
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