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Licensed Unlicensed Requires Authentication Published by De Gruyter November 22, 2022

Design and optimization of molten salt reactor monitoring system based on digital twin technology

Wenqian Liu , Lifeng Han EMAIL logo and Li Huang
From the journal Kerntechnik


The nuclear power industry is developing rapidly toward intelligence and scale, the digital twin was combined with the industrial interconnection technology to solve the key problems in the application of the digital twin, such as the three-dimensional model presentation, real-time data docking, and the improvement of intelligence degree. Based on the example of Thorium Molten Salt Reactor-Solid Fuel (TMSR-SF0). Firstly, the three-dimensional twin of nuclear power equipment is constructed and the real-time update of twin data is realized based on the Node-EPICS event driver and Websocket communication protocol; Then, the communication interface with MySQL database is developed to realize the storage and management of data; Finally, the PID control system of molten salt circuit pipeline is integrated with back propagation neural network algorithm, and the efficiency and precision of temperature control system are improved by self-modification of weight. The results show that this system has the functions of three-dimensional display, network communication, data storage, and parameter optimization, and the data update cycle is raised to 100 ms, which can provide a certain reference value for the digital transformation of the nuclear monitoring field.

Corresponding author: Lifeng Han, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China, E-mail:

Funding source: the Strategic Priority Research Program of Chinese Academy of Sciences

Award Identifier / Grant number: XDA02010300


This work is supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA02010300).

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.


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Received: 2022-05-29
Published Online: 2022-11-22
Published in Print: 2022-12-16

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