基于模型的故障诊断和安全关键化学反应堆的故障耐受性控制:对外热连续动反应堆的案例研究
Pu Du1, Joshiba Ariamuthu Venkidasalapathy2, Sunjeev Venkateswaran1
1Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.
概括
本研究提出了使用第一原则模型的化学反应器的耐故障控制策略. 它有效地检测和减轻冷却系统故障,通过基于模型的控制行动确保安全运行.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 过程控制 过程控制
- 安全系统 安全系统
背景情况:
- 安全关键的化学反应堆需要强大的故障检测和隔离 (FDI) 才能可靠运行.
- 第一原则模型为外国直接投资提供了物理上有意义的剩余值,优于统计方法.
- 将FDI与故障耐受性控制 (FTC) 整合起来,对于保持系统安全至关重要.
研究的目的:
- 开发和说明基于模型的化学反应器故障耐受性控制策略.
- 通过检测和减轻工艺故障来确保安全运行.
- 通过连续炉反应堆案例研究来验证FTC战略.
主要方法:
- 使用第一原则的数学模型来分析反应动力学和热传递.
- 基于材料和能源平衡残余的FDI算法实施.
- 制定FTC策略,监测系统状态与动态安全集 (DSM) 的距离和故障大小.
- 使用操纵输入切换来减轻故障.
主要成果:
- 拟议的FTC战略有效地识别和管理了故障.
- 模拟结果证明了该策略在解决冷却系统故障方面的有效性.
- 从物理上有意义的第一原则模型的残留物促进了可靠的故障诊断.
结论:
- 基于模型的FDI和FTC对于安全关键的化学过程至关重要.
- 开发的FTC战略成功地在故障条件下保持了安全的反应堆运行.
- 连续炉反应堆案例研究验证了故障管理的拟议方法.
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