Water supply pipe network pressure measuring point multi-objective optimization arrangement method

Abstract

The invention provides a water supply pipe network pressure measuring point multi-objective optimization arrangement method. The water supply pipe network pressure measuring point multi-objective optimization arrangement method comprises the following steps that (1), hydraulic calculation is carried out on a basic pipe network model to obtain the basic water pressure P of each node under a normalworking condition; (2), a pressure driving model is established, a minimum service water head, a minimum water outlet water head and an ejector index are arranged, and pipe explosion simulation is carried out on all pipe sections to obtain water pressure P'of each node under different pipe explosion events and flow corresponding to the pipe explosion events; (3), three monitoring network efficiency evaluation functions are set from a monitoring network coverage, the sensitivity and the positioning precision respectively, and for a given monitoring point arrangement scheme, three evaluation function values can be calculated according to the results of the steps (1) and (2); and (4), the number of newly added monitoring points is set, multiple iterations is carried out by using a BORG algorithm, and multi-objective optimization is carried out on the arrangement scheme according to the result of the step (3) to obtain a Pareto optimal solution set.

Description

technical field [0001] The invention belongs to the technical field of urban water supply pipe network monitoring, in particular to a method for multi-objective optimal arrangement of pressure measurement points of a water supply pipe network. Background technique [0002] The arrangement of monitoring points of the water supply pipe network refers to the installation of a certain number of pressure and flow sensors in the water supply pipe network, which are used for pipe network model calibration, operating condition detection, pressure management, leakage control, pipe burst monitoring and early warning, etc. [0003] The optimal arrangement of monitoring points in the water supply network is mainly divided into two categories: empirical method and theoretical analysis method. Empirical method refers to relying on the accumulation of engineering practice, often from the perspective of optimal scheduling of pipeline network operation or hydraulic model verification, under ...

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Problems solved by technology

However, the application of the empirical method has limitations. There may be deviations in the analysis and judgment of large-scale and complex pipe networks, and the accuracy and rationality of the layout plan cannot be guaranteed. The empirical method is only suitable for the lack of water supply pipe network models and long-term stable operation Pipe network provides auxiliary scheme design

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