Control method of once-through stream generator based on active disturbance rejection control

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-10-14 DOI:10.1016/j.nucengdes.2024.113635

Muping Li, Aodi Sun, Peiwei Sun, Xinyu Wei

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Abstract

Small lead–bismuth fast reactor(SLBFR) with pool cooling offers inherent safety features, making it suitable for diverse applications such as mobile nuclear power plants and remote power supplies However, conventional control methods often struggle to meet the demands of frequent load adjustments. To ensure the safe operation of SLBFR in the turbine-leading mode, a new control method for the once-through steam generator (OTSG) is imperative. Moreover, enhancing load-following capabilities is essential to meet operational requirements. The model of SLBFR is established in MATLAB/Simulink software to study the characteristics of OTSG operating in the turbine-leading mode. The control system of steam pressure is built by active disturbance rejection control. The load-following characteristic of core power is improved by load feedforward control modified by energy balance. Simulation results demonstrate that the adopted control method enhances the load-following capability of the OTSG. This paper serves as a valuable reference for designing the OTSG control system of SLBFR, contributing to its safe and efficient operation in various settings.

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基于主动干扰抑制控制的一次流发电机控制方法

采用池式冷却的小型铅铋快堆（SLBFR）具有固有的安全特性，适合移动核电站和远程供电等多种应用。为确保 SLBFR 在汽轮机主导模式下的安全运行，必须为一次通过式蒸汽发生器（OTSG）提供新的控制方法。此外，增强负荷跟随能力对满足运行要求也至关重要。在 MATLAB/Simulink 软件中建立了 SLBFR 模型，以研究 OTSG 在汽轮机主导模式下的运行特性。蒸汽压力控制系统采用主动干扰抑制控制。通过能量平衡修正的负载前馈控制改善了核心功率的负载跟随特性。仿真结果表明，所采用的控制方法增强了 OTSG 的负载跟随能力。本文为设计 SLBFR 的 OTSG 控制系统提供了有价值的参考，有助于其在各种环境下安全高效地运行。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.