Method of controlling a pressurized water nuclear reactor

Details Method of controlling a pressurized water nuclear reactor Method of controlling a pressurized water nuclear reactor

1989-11-14

1992-10-27

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By electronic signal processing circuitry

G21C 700, G21D 310

Patent

active

051587386

ABSTRACT:
A method is disclosed for controlling a PWR comprising a plurality of control bars selectively and individually positioned in the reactor core. The current value of an operating parameter indicative of the power level (for instance the average temperature of the core) is measured as well as the current positions of the control bars and the axial power offset in the core. When the difference between the current value of the operating parameter and the set value exceeds a predetermined deadband interval or the axial power offset in the core exceeds a reference value, the amount by which the reactivity of the core should be modified is computed. Through a simulation process on a model of said reactor, it is determined which ones of the bars may be moved and which are the amounts of travel to be given to the bars for bringing the difference within the deadband and the offset toward the reference value while minimizing a core enthalpy increase factor.

REFERENCES:
patent: 4222822 (1980-09-01), Mueller et al.
patent: 4927594 (1990-05-01), Heibel et al.

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