Abstract
In order to allocate the raw water of the complex water supply system in Shenzhen reasonably, this paper studied the complex network relationship of this large-scale urban water supply system, which consists of 46 reservoirs, 67 waterworks, 2 external diversion water sources, 14 pumping stations and 9 gates, and described each component of the system with the concepts of point, line and plane. Using the topological analysis technology and graph theory, a generalized model of the network topological structure of the urban water allocation system was established. On this basis, combined with the water demand prediction and allocation model of waterworks, a water resources allocation model was established, aiming at satisfying the guaranteed rate of the water supply. The decomposition and coordination principle of the large-scale system and the dynamic simulation technology of the supply-demand balance were adopted to solve the model. The forward calculation mode of controlling waterworks and pumps, and the reverse calculation mode of controlling reservoirs and waterworks were designed in solving the model, and a double-layer feedback mechanism was formed, which took the reverse calculation mode as outer feedback and the reservoir water level constraint or pipeline capacity constraint as inner feedback. Through the verification calculation of the case study, it was found that the proposed model can deal well with the raw water allocation of a large-scale complex water supply system, which had an important application value and a practical significance.
Highlights
The urban water supply system is the front-end water supply subsystem of the urban water resources system
The raw water allocation problem of Shenzhen City is taken as the research object
The raw water allocation problem in Shenzhen is studied in depth, and the following conclusions are drawn
Summary
The urban water supply system is the front-end water supply subsystem of the urban water resources system. Consisting of a variety of water sources and a variety of water transmission and distribution projects, it is a complex natural and artificial system that is used to meet the water supply needs of different periods with the development of large cities [1,2]. Raw water refers to the natural water resources that have not been processed in the city. It is the main source of water for the life, production and ecology in the city. The allocation objective of raw water in the water supply system is to realize the rational utilization of water in the consumption areas, so as to promote the sustainable development of the society and economy. According to the literatures from all over the world, it is found that there are few studies on the allocation model of the urban water supply system, and that
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
