Abstract
This paper deals with fractional-order (FO) modeling of a nuclear reactor. Modeling neutron transport in a nuclear reactor as subdiffusion results in the development of FO neutron telegraph equation. This model predicts subdiffusive behaviour for long-time. This fact is used to develop various linear control-oriented FO models for nuclear reactor. Development and analysis of three FO linear models is reported: FO point reactor kinetics model, Zero power FO transfer function and FO transfer function with temperature feedback of reactivity. In addition to the detailed stability analysis of these FO models, a comparative study of time-domain indices is carried out with respective integer-order models. The proposed FO models give a better representation of the neutron transport in the heterogeneous reactor core and therefore can be used to develop better model-based control strategies for a nuclear reactor.










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A preliminary version of this paper was presented at The Fifth Symposium on Fractional Differentiation and its Applications (FDA’12), held at Hohai University, Nanjing, China, between 14 and 17 May, 2012.
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Vyawahare, V.A., Nataraj, P.S.V., Espinosa-Paredes, G. et al. Nuclear reactor with subdiffusive neutron transport: development of linear fractional-order models. Int. J. Dynam. Control 5, 1182–1200 (2017). https://doi.org/10.1007/s40435-016-0272-8
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DOI: https://doi.org/10.1007/s40435-016-0272-8