Decoupling Control of Nonlinear Coupled Core Reactor

概要

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This paper concerns the application of the decoupling theory for a nonlinear system to the power control of the coupled core reactor. By using this theory, we can deal with the power change problem, the regulating problem for a system subject to a large perturbation, etc., which cannot be dealt with by the decoupling theory for a linear system.<BR>But, since this theory assumes tacitly that all the states are measurable, the theory can not be applied directly to the nuclear reactor that has nonmeasurable state variables such as the delayed neutron precursor. In this paper, the above difficulty is overcome by introducing the observer theory for a nonlinear system.<BR>The decoupling controller and observer resulted from these theories are applied to the coupled core reactor and the dynamic characteristic of the reactor is simulated by the digital computer. The simulation shows that the reactor power of each core is controlled satisfactorily in decoupling manner.
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