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Control of Anaerobic Digestion Reactor with Recirculation Using an Input-Output Linearizing Control Strategy

机译：用输入输出线性化控制策略对厌氧消化反应器的控制

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This work deals with the development and application of a model-based control system for an anaerobic digestion process which can recover energy using methane combustion. Due to the spatially distributed dynamics of some variables of the upflow anaerobic sludge blanket (UASB) reactor, a type of anaerobic digestion process, the traditional control systems may have insufficient performance to handle the complexity. An input-output (I/O) linearizing control scheme for a UASB reactor is developed for a two-step (acidogenesis-methanogenesis) kinetic model described by a coupled PDE-ODE system. The organic substrate (characterized by COD) is manipulated through the feed flow to achieve the desired trajectories. A simulation for closed-loop responses of the proposed control system is conducted and control performances are determined for servo and regulatory problems. The results show that the developed method provides very good responses to achieve the desired set points and handle the control problems without offset.
机译：这项工作涉及用于厌氧消化过程的基于模型的控制系统的开发和应用，可以使用甲烷燃烧回收能量。由于空间分布式动力学的上流厌氧污泥毯（UASB）反应器，一种类型的厌氧消化过程，传统的控制系统可能具有不足的性能来处理复杂性。用于UASB反应器的输入输出（I / O）线性化控制方案用于由耦合的PDE-ode系统描述的两步（呈培素 - 甲烷发生）动力学模型开发。通过进料流操纵有机基质（以鳕鱼特征）以实现所需的轨迹。对所提出的控制系统的闭环响应进行仿真，并确定用于伺服和监管问题的控制性能。结果表明，开发方法提供了非常好的反应，以实现所需的设定点并在没有偏移的情况下处理控制问题。

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