Short-term Water Consumption Forecast in Municipal Water Supply Networks Based on Wavelet Decomposition
Hongwei Zhang · China Water & Wastewater · 2006
A forecast model for short-term water consumption in municipal water supply networks was established by the combined method of wavelet decomposition and Artificial Neutral Network(ANN).Using this method,hourly water consumption is first separated into several simple band-pass signals,the independent ANN forecasting models are then constructed separately according to the characteristics of the decomposed signals.And finally,the ANN models forecasts the integrated results.Because of the simplicity of the decomposed signals frequencies,the network training time can be shortened in effect,and the calculated speed can also be increased.Simulation results show that the ANN forecast method is reasonable,and can rapidly and accurately forecast the water consumption.