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A New Uncertainty-Based Control Scheme of the Small Modular Dual Fluid Reactor and Its Optimization

Author

Listed:
  • Chunyu Liu

    (Chair of Nuclear Technology, Department of Mechanical Engineering, Technical University of Munich (TUM), 85748 Garching, Germany)

  • Run Luo

    (Chair of Nuclear Technology, Department of Mechanical Engineering, Technical University of Munich (TUM), 85748 Garching, Germany
    School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China)

  • Rafael Macián-Juan

    (Chair of Nuclear Technology, Department of Mechanical Engineering, Technical University of Munich (TUM), 85748 Garching, Germany)

Abstract

The small modular dual fluid reactor is a novel variant of the Generation IV molten salt reactor and liquid metal fast reactor. In the primary circuit, molten salt or liquid eutectic metal (U-Pu-Cr) is employed as fuel, and liquid lead works as the coolant in the secondary circuit. To design the control system of such an advanced reactor, the uncertainties of the employed computer model and the physicochemical properties of the materials must be considered. In this paper, a one-dimensional model of a core is established based on the equivalent parameters achieved via the coupled three-dimensional model, taking into account delayed neutron precursor drifting, and a power control system is developed. The performance of the designed controllers is assessed, taking into account the model and property uncertainties. The achieved results show that the designed control system is able to maintain the stability of the system and regulate the power as expected. Among the considered uncertain parameters, the reactivity coefficients of fuel temperature have the largest influence on the performance of the control system. The most optimized configuration of the control system is delivered based on the characteristics of uncertainty propagation by using the particle swarm optimization method.

Suggested Citation

  • Chunyu Liu & Run Luo & Rafael Macián-Juan, 2021. "A New Uncertainty-Based Control Scheme of the Small Modular Dual Fluid Reactor and Its Optimization," Energies, MDPI, vol. 14(20), pages 1-22, October.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6708-:d:657328
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    References listed on IDEAS

    as
    1. Run Luo & Chunyu Liu & Rafael Macián-Juan, 2021. "Investigation of Control Characteristics for a Molten Salt Reactor Plant under Normal and Accident Conditions," Energies, MDPI, vol. 14(17), pages 1-23, August.
    2. Helton, J.C. & Johnson, J.D. & Sallaberry, C.J. & Storlie, C.B., 2006. "Survey of sampling-based methods for uncertainty and sensitivity analysis," Reliability Engineering and System Safety, Elsevier, vol. 91(10), pages 1175-1209.
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