Enhanced confidence control based on non-linear mathematics models of biological process in the urban wastewater treatment systems

(1)第一年到第二年，我们建立了废水处理过程的实用建模、自适应观测器、传感技术等单个元素技术。(2)去年，我们提出了增强的信心控制系统。最后提出的控制系统能够满足实用性、最优性、鲁棒性、可靠性、灵活性和可实现性的要求。该活性污泥过程控制系统由上层控制和下层控制器两层控制系统组成，上层控制器对整个过程进行优化，下层控制器在局部产生控制输入。(3)在上层控制器中，我们提出了两种构造方法。（3-1）对于非线性优化问题，确定了某一代价函数中的权系数，则控制系统的设计成功且保持了效用。（3-2）我们对活性污泥工艺应用了extra…More eme控制策略。我们成功地提出了一种控制系统的形成方法，以在线的方式保持成本函数的极值。(4)在下层控制器中，我们提出了三种构造方法。（4-1）我们对氨指标和硝酸指标的水传感器的可靠性进行了评价。然后提出了PI控制参数的整定方法。我们通过试点工厂进行了执法实验，检查了应该解决的问题。（4-2）将被动性引入积极系统问题的阐释中，取得了成功。（4-3）提出了一种新的自适应观测器方法，从理论上证明了该观测器系统的总稳定性。(5)提出了污水生物处理过程的降阶模型，用于基于模型的脱氮除磷控制设计。利用ASM2模型的摄动技术，导出了与原系统响应相同的低阶系统。少

(1)For the first year to the second year, we established individual element technology such as making a practical modeling for wastewater treatment process, adaptive observer, and sensing technology.(2) For the last year, we have proposed the enhanced confidence control system. This last proposed control system is possible to meat the request of practical use, optimality, robustness, reliability, flexibility, and realization. This control system of activated sludge process consists of two layers of control systems, i.e., upper level control and lower level controller, The upper level controller optimizes the whole process, on the other hand, the lower level controller generates the control input locally.(3) In the upper level controller, we proposed two constructing methods. (3-1) The weight coefficients in a certain cost function are determined for the nonlinear-optimization problem, then it is successful in designing the control system that utility was kept. (3-2) we applied the extr … More eme control strategy for the activated sludge process. We succeeded in a method of forming of control system to do hold in extreme value of the cost function with on-line manner.(4) In the lower level controller, we proposed three constructing methods. (4-1) We evaluate the reliability of the water sensor of ammonia indicator and nitric acid indicators. Then the tuning method of PI control parameters is proposed. We did enforcement experiment by a pilot plant and examined the problem that should have been settled. (4-2) It is successful by introducing passivity into elucidation of positive system problem. (4-3) The new adaptive observer method is proposed, the total stability of this observer system is proven theoretically.(5) We proposed a reduced-order model of biological wastewater treatment process for the purpose of model-based control design of nitrogen and phosphorus removal. By perturbation technique with ASM2 model, we derive the lower order system whose response is as same as one of original system. Less