Abstract
A new physical leakage flow analysis model is established based on blind source separation theory (BSS). The model simultaneously considers the correlation and uncertainty between water consumption and physical leakage flow, takes constraints independent component analysis (CICA) algorithm in BSS, respectively establishes reference vector of water consumption and physical leakage flow to obtain the waveform information of physical leakage flow. The standard deviation and mean of the two flows are respectively calculated based on water balance analysis report and minimum night flow, to achieve the amplitude reduction of physical leakage flow. This analysis model is the application of the high-order statistical information of water distribution network operation data with high simulation accuracy.
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