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Robust Control of the Activated Sludge Process

机译:活性污泥过程的鲁棒控制

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In this work,a robust control strategy is proposed for maintaining the oxygen concentration in the aerobic tank and the pollutant,i.e.,ammonium,nitrate,nitrite,concentrations at acceptable levels in the effluent water at the outlet of the activated sludge process. To this end,the Activated Sludge Model no. I (ASM1) is first reduced using biological arguments and a singular perturbation method,and a simplified model of the secondary settler is included. In contrast with previous studies that make use of piecewise linear models,an average operating point is evaluated using available data (here data from the COST Action 624) and the reduced-order model is linearized around it using standard techniques. Finally,a H2 robust control strategy acting on the oxygen injection and the recirculated flow rate is designed and tested in simulation.
机译:在这项工作中,提出了一种鲁棒的控制策略,以将好氧池中的氧气浓度和污染物(即铵,硝酸盐,亚硝酸盐)的浓度保持在活性污泥工艺出口处的废水中可接受的水平。为此,活性污泥型号为首先使用生物学参数和奇异摄动法对I(ASM1)进行简化,并包括次级定居者的简化模型。与以前使用分段线性模型的研究相比,使用可用数据(此处为COST Action 624的数据)评估平均工作点,并使用标准技术围绕其线性化降阶模型。最后,设计了一种对氧气注入和再循环流量起作用的H2鲁棒控制策略,并在仿真中对其进行了测试。

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