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A Novel Vacuum System Control Strategy for High Intensity D–T Fusion Neutron Generator

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Abstract

High intensity D–T fusion neutron generator (HINEG) is a high voltage accelerator-based D–T fusion neutron facility, which provides a significant platform for nuclear technology researches. The steady operation of HINEG vacuum system is enormously significant for its beam quality. In this paper, in order to eliminate the drawbacks and disadvantages caused by the time delay element in vacuum system, a gain adaptive compensation control strategy was proposed for vacuum system. In accordance with vacuum-pumping mechanism, the vacuum dynamic equilibrium equation was transformed from the time domain to the complex frequency domain by means of Laplace transformation, and the system transfer function in vacuum pumping process was derived. The experimental results analyses showed that the overshoot and settling time are eliminated effectively with this gain adaptive compensation control algorithm, which indicated that the system self-regulation and anti-interference performances were greatly improved.

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Acknowledgments

This work is supported by the ITER 973 Program (No. 2014GB112001) and the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA03040000). We would further like to thank the great help from the other members of FDS Team in this research.

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Authors and Affiliations

  1. University of Science and Technology of China, Hefei, 230026, Anhui, China

    Weitian Wang & Lingli Kong

  2. Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, 230031, Anhui, China

    Weitian Wang, Yong Song, Jianye Wang, Peng Xu & Lingli Kong

Authors
  1. Weitian Wang
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  2. Yong Song
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  3. Jianye Wang
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  4. Peng Xu
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  5. Lingli Kong
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Correspondence to Yong Song.

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Wang, W., Song, Y., Wang, J. et al. A Novel Vacuum System Control Strategy for High Intensity D–T Fusion Neutron Generator. J Fusion Energ 35, 613–620 (2016). https://doi.org/10.1007/s10894-016-0086-x

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  • DOI: https://doi.org/10.1007/s10894-016-0086-x

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