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Pipe network monitoring point optimized layout method serving in water supply network joint water demand inversion

A technology of water supply pipe network and monitoring points, which is applied in the field of optimal layout method of monitoring points of water supply pipe network, and can solve problems such as no optimal layout method of monitoring points

Active Publication Date: 2017-06-20
ZHEJIANG UNIV
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  • Application Information

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Problems solved by technology

There is no optimal layout method of monitoring points suitable for node water demand inversion

Method used

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  • Pipe network monitoring point optimized layout method serving in water supply network joint water demand inversion
  • Pipe network monitoring point optimized layout method serving in water supply network joint water demand inversion
  • Pipe network monitoring point optimized layout method serving in water supply network joint water demand inversion

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Embodiment Construction

[0035] The invention aims to propose a monitoring point optimization arrangement method suitable for improving the inversion accuracy of node water demand. The innovation point is easy to understand. The implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The specific steps are as follows:

[0036] Step 1. Obtain the pressure influence coefficient matrix.

[0037] (1) Pressure sensitivity matrix

[0038] Such as figure 1 As shown, City J has 3 water sources, 491 water demand nodes, 640 pipe sections, and the total length of pipe sections is 433.52 kilometers. The water output of the water plant is known.

[0039] Table 1 Water demand of nodes under baseline conditions

[0040]

[0041] Table 2 Nodal pressure under reference conditions

[0042]

[0043] Table 3 Flow rate of pipe section under reference working condition

[0044]

[0045] Among them, the node numbers are sorte...

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Abstract

The invention discloses a pipe network monitoring point optimized layout method serving in water supply network joint water demand inversion. The monitoring point layout method serving in joint water demand inversion is built after a traditional pressure sensitivity matrix is improved and a newest joint water demand inversion algorithm is fused. The method mainly includes the steps that (1) a standard working condition is selected for conducting pipe network calculation, joint pressure and pipe section flow are obtained, the pressure sensitivity matrix is obtained, and a pressure influence coefficient matrix is created; (2) according to monitoring values of existing monitoring points, joint water demand inversion is carried out, balancing is carried out to obtain the joint pressure and the pipe section flow, and an error matrix is created; (3) the pressure influence coefficient matrix and the error matrix are multiplied, a joint corresponding to a product maximum element is set to be a new pressure monitoring point, and a pipe section corresponding to the flow error matrix maximum element is set to be a new flow monitoring point; and (4) when the number of the monitoring points reaches the upper limit, iteration is finished, or the step (2) is repeatedly executed to continuously conduct calculation, and the number of the monitoring points is increased.

Description

technical field [0001] The invention belongs to the category of urban water supply pipe networks, in particular to a method for optimally arranging monitoring points of the 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, and provide data support for pipe network scheduling analysis. [0003] At present, the optimal arrangement of monitoring points in the water supply network mainly includes fuzzy clustering and sensitivity analysis. There is no optimal arrangement method of monitoring points suitable for node water demand inversion. The node water demand inversion algorithm is a method to invert the node water demand based on SCADA monitoring data, and the accuracy of the inversion depen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/00G06F17/50
CPCF17D5/00G06F30/20G06F2113/14
Inventor 邵煜俞亭超楚士鹏张土乔郑飞飞程伟平
Owner ZHEJIANG UNIV
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