Design and analysis of adaptive power control system for solid fuel molten salt reactor

Jinghua WANG; Maosong CHENG; Zhimin DAI

doi:10.11889/j.0253-3219.2017.hjs.40.090602

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Design and analysis of adaptive power control system for solid fuel molten salt reactor

NUCLEAR ENERGY SCIENCE AND ENGINEERING | 更新时间：2021-05-19

- Design and analysis of adaptive power control system for solid fuel molten salt reactor
- NUCLEAR TECHNIQUES Vol. 40, Issue 9, Article number: 090602(2017)
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800
  2.中国科学院大学北京 100049
  3.上海科技大学上海 201800
- 作者简介：
- 基金信息：
  
  Strategic Priority Research Program of Chinese Academy of Sciences
- DOI：10.11889/j.0253-3219.2017.hjs.40.090602
  CLC： TL361
- Received：21 April 2017，
  
  Revised：23 May 2017，
  
  Published：2017-09
- 稿件说明：
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Jinghua WANG, Maosong CHENG, Zhimin DAI. Design and analysis of adaptive power control system for solid fuel molten salt reactor[J]. Nuclear techniques, 2017, 40(9): 090602
DOI：

Jinghua WANG, Maosong CHENG, Zhimin DAI. Design and analysis of adaptive power control system for solid fuel molten salt reactor[J]. Nuclear techniques, 2017, 40(9): 090602 DOI： 10.11889/j.0253-3219.2017.hjs.40.090602.

摘要

钍基熔盐堆核能系统（Thorium-based Molten Salt Reactor，TMSR）是中国科学院首批启动实施的战略性先导科技专项，旨在研发第四代反应堆核能系统。固态燃料钍基熔盐实验堆（The Solid Fuel Thorium-based Molten Salt Experimental Reactor，TMSR-SF1）是一个10 MW热功率的氟盐冷却球床堆，目前已经完成方案设计和初步工程设计。功率控制系统是反应堆一个关键控制系统，实现反应堆正常启动、功率运行和正常停堆功能，对保证反应堆安全和稳定运行起着极其重要的作用。根据TMSR-SF1运行控制要求，结合自适应控制理论，基于Lyapunov稳定性理论设计了一种TMSR-SF1模型参考自适应功率控制器。基于TMSR仿真平台，使用MATLAB/Simulink建立了自适应功率控制系统模型，并开展了控制器特性分析。结果表明，自适应功率控制器具备良好的负荷跟随能力，抗干扰能力强、稳定性好、可靠性高，能够满足TMSR-SF1功率控制的要求，确保堆芯的输出功率与功率设定值相匹配。

Abstract

Background:

Thorium-based molten salt reactor (TMSR) nuclear energy system is one of the first batch strategic pilot science and technology projects launched by Chinese Academy of Sciences. It aims to develop nuclear energy system of the fourth-generation reactor. The solid fuel thorium-based molten salt experimental reactor (TMSR-SF1) with thermal power of 10 MW is a fluoride-salt-cooling pebble bed reactor

has its preliminary project and engineering design completed. Reactor power control system is a key part of nuclear reactor

which can realize the normal start-up

power operation and normal shutdown of the reactor

and thus plays an extremely important role in ensuring the safety and stable operation of the reactor.

Purpose:

This study aims to design a self-adaptive power control system for TMSR-SF1.

Methods:

Firstly

the adaptive law of adaptive controller is designed based on Lyapunov stability theory. And then

the adaptive model is established in Simulink and numerical research is carried out on the TMSR simulation platform. Finally

the characteristics of the controller are analyzed based on the numerical results.

Results:

The numerical results show that the adaptive parameter γ is very important to adaptive law

and control system could achieve better tracking performance only when γ is appropriate. When there is unmeasurable disturbances

control system can quickly absorb them and keep working in better condition.

Conclusion:

The model reference adaptive power controller is stable and reliable

and has strong anti-interference ability

which can satisfy the control requirements of TMSR-SF1's core power following load.

关键词

Keywords

references

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