IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i12p4487-d843130.html
   My bibliography  Save this article

A Finite-Time Differentiator with Application to Nuclear Reactor Inverse Period Measurement

Author

Listed:
  • Yunlong Zhu

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Zhe Dong

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Duo Li

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Xiaojin Huang

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Yujie Dong

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Yajun Zhang

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Zuoyi Zhang

    (Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Centre of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

Abstract

The measurement of the growth rate, or the so-called inverse period, of a nuclear reactor is crucial for safety monitoring and control purposes. Due to the inevitable statistical fluctuation of neutron flux at low power-levels, it is difficult to precisely estimate the inverse period from the pulse counting data in the source range. Motivated by the equivalence of the measurement of inverse period and the differentiation of the logarithm of pulse count, a new differentiator is proposed, which is finite-time convergent with a bounded steady estimation error. The feasibility of this newly-built finite-time differentiator is verified by numerical simulation. Then, based on the pulse count data recorded during the startup of a test reactor, the differentiator is used to estimate the inverse period and its derivative, as well as the period and the reactivity of the reactor. The results show that the differentiator is capable of providing a satisfactory estimation of signal derivatives under strong noise.

Suggested Citation

  • Yunlong Zhu & Zhe Dong & Duo Li & Xiaojin Huang & Yujie Dong & Yajun Zhang & Zuoyi Zhang, 2022. "A Finite-Time Differentiator with Application to Nuclear Reactor Inverse Period Measurement," Energies, MDPI, vol. 15(12), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4487-:d:843130
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/12/4487/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/12/4487/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Zhe Dong & Zhonghua Cheng & Yunlong Zhu & Xiaojin Huang & Yujie Dong & Zuoyi Zhang, 2023. "Review on the Recent Progress in Nuclear Plant Dynamical Modeling and Control," Energies, MDPI, vol. 16(3), pages 1-19, February.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4487-:d:843130. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.