城市排水系统混合逻辑动态(MLD)建模方法及应用

Method and practice of mixed logic dynamic modelling of urban drainage system

传统的排水系统机理模型在城市排水系统精细化模拟和设计评估方面应用广泛,但是在以排水系统优化控制为主攻方向的实时控制模式中,机理模型的计算复杂性与低时效性不利于与优化系统结合,难以形成较为完善的模拟-预测-优化体系。混合逻辑动态法作为一种广泛应用在物理过程建模和自动控制领域的线性离散化模拟手段,通过研究其在排水系统中的建模原理与优化方式,并通过案例分析其模拟与优化的准确性与可靠性,展现了其在城市排水系统模拟领域的应用潜力和价值。

The traditional mechanism model of drainage system is widely used in the fine simulation and design evaluation of urban drainage system(UDS).However,in the real time control mode which aims at optimal control of UDS,the complex calculation form and high time consuming of mechanism model is not conducive to the combination with optimization system,and it is difficult to establish a simulation-prediction-optimization system perfectly.As a linear and discrete simulation method,mixed logic dynamic(MLD)is widely used in physical process modeling and automatic control.By theoretically studying its modeling principle and optimization mode,and analyzing the accuracy and reliability of its simulation and optimization results through a case,MLD shows potential application value in the field of UDS modeling.