废水处理系统多元智能-机理模型耦合机制及动态模拟

项目名称： 废水处理系统多元智能-机理模型耦合机制及动态模拟

项目编号： No.51208206

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 建筑环境与结构工程学科

项目作者： 黄明智

作者单位： 中山大学

项目金额： 25万元

中文摘要： 废水处理系统数学模型是提高废水处理系统运行效率和管理水平的重要工具，由于废水处理系统具有高度的多变量、非线性、时变性等特点，所以构建准确而实用的废水处理系统数学模型一直是废水处理控制技术领域的热点与难点。本项目通过分析废水处理系统的动态特性，运用奇异摄动理论对废水处理机理模型进行时标分解，建立简化机理模型使系统降维，并探讨其与神经网络、模糊逻辑、遗传算法、马尔可夫链等多种智能理论的耦合机制，构建机理与多种智能算法为一体的多元耦合动态模型，实现对废水处理系统的动态模拟，阐明动态变化参数与污染物降解过程的内在关系。在此基础上，结合嵌入式技术，在matlab/simulink平台编写模拟程序及搭建多元耦合模型动态仿真系统，以直观反映污染物随时间和空间的变化历程，优化和调控废水处理系统。本研究为深入理解废水处理系统的动态行为和规律、优化废水处理系统设计和运行方案等提供理论指导和技术支持。

中文关键词： 废水处理；智能模型；机理模型；耦合机制；动态模拟

英文摘要： Due to the increased concern about environmental issues, many experts focus their attention on the proper operation and control of wastewater treatment process (WWTP). In order to improve operating efficiency of wastewater treatment process and realize the wastewater treatment control, it is the base and key issue to build mathematical model of wastewater treatment process. However, operation of WWTP affected by a variety of physical, chemical, and biological factors, exists high nonlinearity, uncertainty and posterity, so establishing accurate mathematical model which describes wastewater treatment process is a difficulty and focus in the control field of wastewater treatment process. For the purpose of promoting the activated sludge model to be applied in control and optimization fields, singular perturbation will be proposed to decompose the mechanism model of wastewater treatment system and reduce the system dimension by analyzing dynamic characteristics of the wastewater treatment process, and then a simplified mechanism model presented as singular perturbation model will be derived based on nature of the mechanism model. Moreover the coupling mechanism between the simplified model and intelligent model will be discussed according to the performance of some intelligent algorithm (neural network, fuzzy logic

英文关键词： Wastewater treatment；Intelligent model；Mechanism Model；Coupling mechanism；Dynamic simulation