Research of regulator of liquid absorber concentration of NPP

Research of regulator of liquid absorber concentration of NPP. Currently, an urgent task is to control nuclear power units in maneuvering mode. When maneuvering power unit can be changed by changing the concentration of boron isotope 10B in the primary coolant. Boron isotope 10B is a neutron absorber. The most convenient way of changing the boron concentration is to change the concentration of boric acid. In this case, boric acid is a liquid neutron absorber, which allows continuous control the fission process of nuclear fuel. A feature of the first circuit in terms of controlling the concentration of liquid absorber is different static and dynamic characteristics in the input and output of boric acid, that is, when applied to the control action with different signs. Thus, there is the problem of synthesizing control the concentration of boric acid to the non-linear object. The articles provides a rationale for the structure and parameters of the NPP control of the regulation with a liquid absorbent. During the calculations it was determined that the optimum control is the PI-regulator, which is set to the object with the minimum transmission ratio and maximum constant time.