Study on Allocation Method of Multi-Water Sources Complex Pipe Network in Beijing Raw Water System

Abstract

With the project completion of the middle route project of China's South-North Water Transfer Scheme (SNWT), Beijing's water supply system has become a form of multi-water supply. This study analyzes the topology of the complex water supply network in Beijing and constructs a water supply network simulation model of “water source - water supply pipeline - water user”. Under the premise of ensuring the balance of water sources and plants, a complex pipeline network scheduling model of multi-water sources is established according to the priority of the use of various water sources in the city. A simplified method for complex water supply networks is proposed to reduce the dimensionality of the problem, and the optimization rules required for the optimal equilibrium solution are investigated using a stepwise optimization algorithm. Compared with the previous multi-water sources annual allocation plan, the optimal allocation plan of this study is more reasonable for the deployment of multi-water sources and gives full play to the advantages of the multi-water sources system.