A water supply network leakage detection positioning and energy saving optimization method and system

By combining the hydraulic balance physical model with flow rate and hydraulic potential energy data, residual statistics are constructed to determine leakage. Combined with the pump and valve operation optimization model, the problems of false alarms, false alarms and energy-saving control in water supply network leakage detection are solved, and rapid and accurate leakage location and energy-saving optimization are achieved.

CN122241940APending Publication Date: 2026-06-19INNER MONGOLIA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA UNIV OF SCI & TECH
Filing Date
2026-03-25
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, water supply network leakage detection suffers from false alarms, missed alarms, and insensitivity to small leaks. Furthermore, the energy consumption of water supply systems is closely related to pressure levels, and existing energy-saving scheduling has failed to form a closed-loop decision-making process encompassing detection, location, and energy-saving control.

Method used

By using a hydraulic balance physical model combined with flow rate and hydraulic potential energy data, residual statistics are constructed to determine leakage or abnormal operating conditions. Energy saving and leakage reduction are achieved through a pump and valve operation optimization model, and pipe diameter modification planning is optimized.

Benefits of technology

It enables rapid anomaly detection, improves sensitivity to small leaks, enhances location stability and accuracy, and achieves synergistic optimization of energy saving and leak reduction within the same modeling framework.

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Abstract

This invention discloses a method and system for leak detection, location, and energy-saving optimization in water supply networks, relating to the field of urban water supply network optimization and control technology. The method involves acquiring flow measurement data and hydraulic potential energy data; obtaining pipe segment flow and node hydraulic potential energy based on a hydraulic balance physical model; constructing residuals based on the calculation results and the datasets of flow and hydraulic potential energy to be used, and determining leakage or abnormal operating conditions; constructing a candidate leak point node set based on the set of abnormal node pairs; introducing leakage variables into the candidate leak point node set; establishing and solving a leak inversion location model under the constraints of the hydraulic balance physical model to obtain leakage estimates and determine the leak location and scale; and establishing a pump and valve operation optimization model for the water supply network, outputting pump start-up and shutdown schemes and valve setting schemes. This invention solves the problems of unreliable leak detection under multi-condition fluctuations and measurement noise, difficulty in stable location of small leaks, and the difficulty in coordinating energy-saving control and leak reduction.
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